ARCHITECTURE DESCRIPTION DOCUMENT
FOR
OTEC PROJECT
Saturday, November 21, 2009
Prepared For:
SYST798
Prepared By:
Team 2
Pierre Cannon
Sumon Nandy
Amy Nandy
Saturday, November 21, 2009
Table of Contents
1
2
3
4
5
6
Operational Overview ............................................................................................................................... 1
Systems Overview .................................................................................................................................... 2
Systems/Components ................................................................................................................................ 3
Interfaces ................................................................................................................................................. 11
Functional Model .................................................................................................................................... 38
Risks........................................................................................................................................................ 78
—i—
Saturday, November 21, 2009
List of Figures
1 OTEC System Physical Block Diagram ................................................................................................... 4
2 Central Computer Physical Block Diagram .............................................................................................. 5
3 Operate OTEC System Enhanced FFBD ................................................................................................ 41
4 Operate OTEC System FFBD ................................................................................................................. 42
5 Operate OTEC System N2 Diagram ....................................................................................................... 42
6 Operate OTEC System IDEF0 Diagram ................................................................................................. 44
7 Control OTEC System Enhanced FFBD ................................................................................................ 45
8 Control OTEC System FFBD ................................................................................................................. 45
9 Control OTEC System N2 Diagram ....................................................................................................... 46
10 Control OTEC System IDEF0 Diagram ............................................................................................... 47
11 Generate Power Enhanced FFBD ......................................................................................................... 50
12 Generate Power FFBD .......................................................................................................................... 50
13 Generate Power N2 Diagram ................................................................................................................ 51
14 Generate Power IDEF0 Diagram .......................................................................................................... 52
15 Monitor Health Enhanced FFBD .......................................................................................................... 54
16 Monitor Health FFBD ........................................................................................................................... 54
17 Monitor Health N2 Diagram ................................................................................................................. 55
18 Monitor Health IDEF0 Diagram ........................................................................................................... 56
— ii —
Saturday, November 21, 2009
List of Tables
1 1 Central Computer External I/O ............................................................................................................ 11
2 2 Cold Water Pipe External I/O .............................................................................................................. 14
3 3 Condenser External I/O........................................................................................................................ 16
4 3.1 ThermostatC External I/O ................................................................................................................. 18
5 4 Evaporator External I/O ....................................................................................................................... 18
6 4.1 ThermostatE External I/O ................................................................................................................. 20
7 5 Fluid Pump External I/O ...................................................................................................................... 20
8 5.1 Pressure Sensor External I/O ............................................................................................................ 22
9 6 Generator External I/O ......................................................................................................................... 22
10 6.1 Power Sensor External I/O .............................................................................................................. 24
11 7 Hot Water Pipe External I/O .............................................................................................................. 24
12 8 Turbine External I/O .......................................................................................................................... 26
13 8.1 Tachometer External I/O ................................................................................................................. 27
14 9 Water Pump External I/O ................................................................................................................... 27
15 9.1 Pump Power Sensor External I/O ................................................................................................... 29
16 COOL OCEAN WATER External I/O ................................................................................................. 29
17 DEEP COLD OCEAN WATER External I/O ...................................................................................... 31
18 WARM OCEAN WATER External I/O .............................................................................................. 33
19 WARM OCEAN SURFACE WATER External I/O ............................................................................ 34
20 0 Operate OTEC System Interfacing Items .......................................................................................... 40
21 1 Control OTEC System Interfacing Items ........................................................................................... 44
22 2 Generate Power Interfacing Items ...................................................................................................... 48
23 3 Monitor Health Interfacing Items ...................................................................................................... 53
24 11 Start OTEC System Interfacing Items ............................................................................................. 56
25 12 Run OTEC CPU Interfacing Items .................................................................................................. 57
26 13 Control System Interfacing Items .................................................................................................... 57
27 14 Stop OTEC System Interfacing Items .............................................................................................. 58
28 21 Pump Working Fluids Interfacing Items .......................................................................................... 59
29 22 Pump Water Interfacing Items ......................................................................................................... 60
30 23 Evaporate Working Fluid Interfacing Items .................................................................................... 62
31 24 Drive Turbine Interfacing Items ...................................................................................................... 63
32 25 Spin Generator Interfacing Items ..................................................................................................... 64
33 26 Condense Working Fluid Interfacing Items ..................................................................................... 65
34 31 Monitor Turbine Speed Interfacing Items ........................................................................................ 66
35 32 Monitor Generator Power Interfacing Items .................................................................................... 67
36 33 Monitor Condenser Temperature Interfacing Items ......................................................................... 68
37 34 Monitor Evaporator Temperature Interfacing Items ........................................................................ 69
38 35 Monitor Fluid Pressure Interfacing Items ........................................................................................ 70
39 36 Monitor Pump Power Interfacing Items ........................................................................................... 71
— iii —
Saturday, November 21, 2009
1 Operational Overview
This section is empty if an Architecture is not specified or the selected Architecture does not link to a toplevel Operational Node of type Operational Node.
—1—
Saturday, November 21, 2009
2 Systems Overview
This section is empty if a primary Component is not specified.
—2—
Saturday, November 21, 2009
3 Systems/Components
Part I - Component List
0 - OTEC System
1 - Central Computer
2 - Cold Water Pipe
3 - Condenser
3.1 - ThermostatC
4 - Evaporator
4.1 - ThermostatE
5 - Fluid Pump
5.1 - Pressure Sensor
6 - Generator
6.1 - Power Sensor
7 - Hot Water Pipe
8 - Turbine
8.1 - Tachometer
9 - Water Pump
9.1 - Pump Power Sensor
COOL OCEAN WATER
DEEP COLD OCEAN WATER
WARM OCEAN WATER
WARM OCEAN SURFACE WATER
Part II - Component Definitions
0 OTEC System
Built From Lower-Level Component(s):
1 Central Computer
2 Cold Water Pipe
3 Condenser
4 Evaporator
5 Fluid Pump
6 Generator
7 Hot Water Pipe
8 Turbine
9 Water Pump
Joined Thru Logical Interface:
Cold Water input
Cool Water output
Surface water input
Warm Water Output
—3—
Saturday, November 21, 2009
3 Systems/Components
1
Central Computer
nil
2
Cold Water Pipe
nil
3
Condenser
nil
4
Evaporator
nil
5
Fluid Pump
nil
6
Generator
nil
7
Hot Water Pipe
nil
8
Turbine
nil
9
Water Pump
nil
Date:
Thursday, October 29, 2009
Author:
Number:
Name:
Figure 1 OTEC System Physical Block Diagram
1 Central Computer
Built In Higher-Level Component(s):
0 OTEC System
Built From Lower-Level Component(s):
3.1 ThermostatC
4.1 ThermostatE
5.1 Pressure Sensor
6.1 Power Sensor
8.1 Tachometer
9.1 Pump Power Sensor
—4—
0
University User
(University) OTEC Sys tem
Saturday, November 21, 2009
3 Systems/Components
3.1
ThermostatC
nil
4.1
ThermostatE
nil
5.1
Pressure Sensor
nil
6.1
Power Sensor
nil
8.1
Tachometer
nil
9.1
Pump Power Sensor
nil
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Central Computer
1
Figure 2 Central Computer Physical Block Diagram
Performs Function(s):
0 Operate OTEC System
1 Control OTEC System
3 Monitor Health
11 Start OTEC System
12 Run OTEC CPU
13 Control System
14 Stop OTEC System
Exhibits Performance Objectives:
S.13 Computer
S.14 Processing
S.15 Error Monitoring
S.16 Health Monitoring
S.17 Corrective Action
Specified By Requirements (untyped):
N.1 Command
—5—
University User
Saturday, November 21, 2009
3 Systems/Components
N.3 Monitoring and Control
2 Cold Water Pipe
Built In Higher-Level Component(s):
0 OTEC System
Joined To Logical Interface:
Cold Water input
Performs Function(s):
0 Operate OTEC System
2 Generate Power
22 Pump Water
Specified By Requirements (untyped):
N.4 System Lifetime
Q.2 Component Lifetime
Q.10 Used Water
3 Condenser
Built In Higher-Level Component(s):
0 OTEC System
Joined To Logical Interface:
Cool Water output
Performs Function(s):
0 Operate OTEC System
2 Generate Power
26 Condense Working Fluid
Exhibits Performance Objectives:
S.2 Heat Exchangers
S.5 Component Selection
Specified By Requirements (untyped):
Q.10 Used Water
3.1 ThermostatC
Built In Higher-Level Component(s):
1 Central Computer
Performs Function(s):
33 Monitor Condenser Temperature
Exhibits Performance Objectives:
S.5 Component Selection
S.9 Thermocouple rating
4 Evaporator
Built In Higher-Level Component(s):
—6—
Saturday, November 21, 2009
3 Systems/Components
0 OTEC System
Joined To Logical Interface:
Warm Water Output
Performs Function(s):
0 Operate OTEC System
2 Generate Power
23 Evaporate Working Fluid
Exhibits Performance Objectives:
S.2 Heat Exchangers
S.5 Component Selection
Specified By Requirements (untyped):
Q.10 Used Water
4.1 ThermostatE
Built In Higher-Level Component(s):
1 Central Computer
Performs Function(s):
34 Monitor Evaporator Temperature
Exhibits Performance Objectives:
S.5 Component Selection
S.9 Thermocouple rating
5 Fluid Pump
Built In Higher-Level Component(s):
0 OTEC System
Performs Function(s):
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
Specified By Requirements (untyped):
N.6 Survivability
N.7 Construction
N.8 Maintenance of Subsystems
N.9 MTTR
Q.2 Component Lifetime
5.1 Pressure Sensor
Built In Higher-Level Component(s):
1 Central Computer
Performs Function(s):
35 Monitor Fluid Pressure
Exhibits Performance Objectives:
—7—
Saturday, November 21, 2009
3 Systems/Components
S.5 Component Selection
6 Generator
Built In Higher-Level Component(s):
0 OTEC System
Performs Function(s):
0 Operate OTEC System
2 Generate Power
25 Spin Generator
Exhibits Performance Objectives:
S.4 Generator
S.5 Component Selection
S.6 Voltage Regulators
6.1 Power Sensor
Built In Higher-Level Component(s):
1 Central Computer
Performs Function(s):
32 Monitor Generator Power
Exhibits Performance Objectives:
S.5 Component Selection
S.10 Voltage Meters
7 Hot Water Pipe
Built In Higher-Level Component(s):
0 OTEC System
Joined To Logical Interface:
Surface water input
Performs Function(s):
0 Operate OTEC System
2 Generate Power
22 Pump Water
Specified By Requirements (untyped):
N.4 System Lifetime
Q.2 Component Lifetime
Q.10 Used Water
8 Turbine
Built In Higher-Level Component(s):
0 OTEC System
Performs Function(s):
0 Operate OTEC System
—8—
Saturday, November 21, 2009
3 Systems/Components
2 Generate Power
24 Drive Turbine
Exhibits Performance Objectives:
S.3 Turbine
Specified By Requirements (untyped):
N.4 System Lifetime
N.6 Survivability
N.7 Construction
N.8 Maintenance of Subsystems
N.9 MTTR
8.1 Tachometer
Built In Higher-Level Component(s):
1 Central Computer
Exhibits Performance Objectives:
S.5 Component Selection
S.7 Tachometer rating
S.8 Tachometer status
9 Water Pump
Built In Higher-Level Component(s):
0 OTEC System
Performs Function(s):
0 Operate OTEC System
2 Generate Power
22 Pump Water
Specified By Requirements (untyped):
N.4 System Lifetime
N.6 Survivability
N.7 Construction
N.8 Maintenance of Subsystems
N.9 MTTR
Q.2 Component Lifetime
Q.10 Used Water
9.1 Pump Power Sensor
Built In Higher-Level Component(s):
1 Central Computer
Performs Function(s):
36 Monitor Pump Power
Exhibits Performance Objectives:
S.5 Component Selection
S.10 Voltage Meters
—9—
Saturday, November 21, 2009
3 Systems/Components
COOL OCEAN WATER
Description:
Cold water output
Joined To Logical Interface:
Cool Water output
Performs Function(s):
0 Operate OTEC System
2 Generate Power
23 Evaporate Working Fluid
DEEP COLD OCEAN WATER
Description:
Deep cold water input
Joined To Logical Interface:
Cold Water input
Performs Function(s):
0 Operate OTEC System
2 Generate Power
23 Evaporate Working Fluid
WARM OCEAN WATER
Description:
Warm Water Output
Joined To Logical Interface:
Warm Water Output
Performs Function(s):
0 Operate OTEC System
2 Generate Power
23 Evaporate Working Fluid
WARM OCEAN SURFACE WATER
Description:
Warm surface water input
Joined To Logical Interface:
Surface water input
Performs Function(s):
0 Operate OTEC System
2 Generate Power
23 Evaporate Working Fluid
— 10 —
Saturday, November 21, 2009
4 Interfaces
Part I - Derived Functional Interfaces
Table 1 1 Central Computer External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System
 Water
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
— 11 —
Saturday, November 21, 2009
4 Interfaces
Table 1 1 Central Computer External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
1 Control OTEC System
 System Controls
2 Generate Power2 Cold Water
Pipe
2 Generate Power3 Condenser
2 Generate Power4 Evaporator
2 Generate Power5 Fluid Pump
2 Generate Power6 Generator
2 Generate Power7 Hot Water
Pipe
2 Generate Power8 Turbine
2 Generate Power9 Water Pump
2 Generate PowerCOOL OCEAN
WATER
2 Generate PowerDEEP COLD
OCEAN WATER
2 Generate PowerWARM
OCEAN WATER
2 Generate PowerWARM
OCEAN SURFACE WATER
21 Pump Working Fluids5 Fluid
Pump
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
3 Monitor Health
 Data
2 Generate Power7 Hot Water
Pipe
2 Generate Power2 Cold Water
Pipe
2 Generate Power3 Condenser
2 Generate Power4 Evaporator
2 Generate Power5 Fluid Pump
2 Generate Power6 Generator
2 Generate Power8 Turbine
2 Generate Power9 Water Pump
2 Generate PowerCOOL OCEAN
WATER
2 Generate PowerDEEP COLD
— 12 —
Saturday, November 21, 2009
4 Interfaces
Table 1 1 Central Computer External I/O
Function
Interface Item
Interfacing Entity
OCEAN WATER
2 Generate PowerWARM
OCEAN WATER
2 Generate PowerWARM
OCEAN SURFACE WATER
13 Control System
 System Controls
2 Generate Power2 Cold Water
Pipe
2 Generate Power3 Condenser
2 Generate Power4 Evaporator
2 Generate Power5 Fluid Pump
2 Generate Power6 Generator
2 Generate Power7 Hot Water
Pipe
2 Generate Power8 Turbine
2 Generate Power9 Water Pump
2 Generate PowerCOOL OCEAN
WATER
2 Generate PowerDEEP COLD
OCEAN WATER
2 Generate PowerWARM
OCEAN WATER
2 Generate PowerWARM
OCEAN SURFACE WATER
21 Pump Working Fluids5 Fluid
Pump
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
14 Stop OTEC System
 System Controls
2 Generate Power2 Cold Water
Pipe
2 Generate Power3 Condenser
2 Generate Power4 Evaporator
2 Generate Power5 Fluid Pump
2 Generate Power6 Generator
2 Generate Power7 Hot Water
Pipe
2 Generate Power8 Turbine
2 Generate Power9 Water Pump
2 Generate PowerCOOL OCEAN
WATER
2 Generate PowerDEEP COLD
OCEAN WATER
— 13 —
Saturday, November 21, 2009
4 Interfaces
Table 1 1 Central Computer External I/O
Function
Interface Item
Interfacing Entity
2 Generate PowerWARM
OCEAN WATER
2 Generate PowerWARM
OCEAN SURFACE WATER
21 Pump Working Fluids5 Fluid
Pump
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
Table 2 2 Cold Water Pipe External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System
 Water
0 Operate OTEC System1
Central Computer
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System1
Central Computer
0 Operate OTEC System3
Condenser
— 14 —
Saturday, November 21, 2009
4 Interfaces
Table 2 2 Cold Water Pipe External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
22 Pump Water
 Cold Water
26 Condense Working Fluid3
Condenser
22 Pump Water
 Hot Water
23 Evaporate Working Fluid4
Evaporator
23 Evaporate Working
FluidCOOL OCEAN WATER
23 Evaporate Working
FluidDEEP COLD OCEAN
WATER
23 Evaporate Working
FluidWARM OCEAN WATER
23 Evaporate Working
FluidWARM OCEAN SURFACE
WATER
22 Pump Water
 Pump Power
36 Monitor Pump Power9.1
Pump Power Sensor
22 Pump Water
 Net Power
25 Spin Generator6 Generator
22 Pump Water
 System Controls
1 Control OTEC System1 Central
Computer
— 15 —
Saturday, November 21, 2009
4 Interfaces
Table 2 2 Cold Water Pipe External I/O
Function
Interface Item
Interfacing Entity
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
Table 3 3 Condenser External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System
 Water
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
— 16 —
Saturday, November 21, 2009
4 Interfaces
Table 3 3 Condenser External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
26 Condense Working Fluid
 Liquid Ammonia
21 Pump Working Fluids5 Fluid
Pump
23 Evaporate Working Fluid4
Evaporator
23 Evaporate Working
FluidCOOL OCEAN WATER
23 Evaporate Working
FluidDEEP COLD OCEAN
WATER
23 Evaporate Working
FluidWARM OCEAN WATER
23 Evaporate Working
FluidWARM OCEAN SURFACE
WATER
26 Condense Working Fluid
 Temperature
33 Monitor Condenser
Temperature3.1 ThermostatC
34 Monitor Evaporator
Temperature4.1 ThermostatE
26 Condense Working Fluid
 Ammonia Steam
24 Drive Turbine8 Turbine
26 Condense Working Fluid
 Cold Water
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
— 17 —
Saturday, November 21, 2009
4 Interfaces
Table 4 3.1 ThermostatC External I/O
Function
Interface Item
33 Monitor Condenser Temperature  Temperature
Interfacing Entity
26 Condense Working Fluid3
Condenser
23 Evaporate Working Fluid4
Evaporator
23 Evaporate Working
FluidCOOL OCEAN WATER
23 Evaporate Working
FluidDEEP COLD OCEAN
WATER
23 Evaporate Working
FluidWARM OCEAN WATER
23 Evaporate Working
FluidWARM OCEAN SURFACE
WATER
Table 5 4 Evaporator External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System
 Water
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System7 Hot
Water Pipe
— 18 —
Saturday, November 21, 2009
4 Interfaces
Table 5 4 Evaporator External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
23 Evaporate Working Fluid
 Fluid Pressure
35 Monitor Fluid Pressure5.1
Pressure Sensor
23 Evaporate Working Fluid
 Steam Ammonia
24 Drive Turbine8 Turbine
23 Evaporate Working Fluid
 Temperature
33 Monitor Condenser
Temperature3.1 ThermostatC
34 Monitor Evaporator
Temperature4.1 ThermostatE
23 Evaporate Working Fluid
 Hot Water
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
23 Evaporate Working Fluid
 Liquid Ammonia
26 Condense Working Fluid3
Condenser
— 19 —
Saturday, November 21, 2009
4 Interfaces
Table 6 4.1 ThermostatE External I/O
Function
Interface Item
34 Monitor Evaporator Temperature  Temperature
Interfacing Entity
26 Condense Working Fluid3
Condenser
23 Evaporate Working Fluid4
Evaporator
23 Evaporate Working
FluidCOOL OCEAN WATER
23 Evaporate Working
FluidDEEP COLD OCEAN
WATER
23 Evaporate Working
FluidWARM OCEAN WATER
23 Evaporate Working
FluidWARM OCEAN SURFACE
WATER
Table 7 5 Fluid Pump External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System
 Water
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System7 Hot
Water Pipe
— 20 —
Saturday, November 21, 2009
4 Interfaces
Table 7 5 Fluid Pump External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System6
Generator
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
21 Pump Working Fluids
 Fluid Pressure
35 Monitor Fluid Pressure5.1
Pressure Sensor
21 Pump Working Fluids
 Pump Power
36 Monitor Pump Power9.1
Pump Power Sensor
21 Pump Working Fluids
 Liquid Ammonia
26 Condense Working Fluid3
Condenser
21 Pump Working Fluids
 Net Power
25 Spin Generator6 Generator
21 Pump Working Fluids
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
— 21 —
Saturday, November 21, 2009
4 Interfaces
Table 8 5.1 Pressure Sensor External I/O
Function
35 Monitor Fluid Pressure
Interface Item
 Fluid Pressure
Interfacing Entity
23 Evaporate Working
FluidWARM OCEAN SURFACE
WATER
21 Pump Working Fluids5 Fluid
Pump
23 Evaporate Working Fluid4
Evaporator
23 Evaporate Working
FluidCOOL OCEAN WATER
23 Evaporate Working
FluidDEEP COLD OCEAN
WATER
23 Evaporate Working
FluidWARM OCEAN WATER
Table 9 6 Generator External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System
 Water
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System7 Hot
Water Pipe
— 22 —
Saturday, November 21, 2009
4 Interfaces
Table 9 6 Generator External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
25 Spin Generator
 Net Power
21 Pump Working Fluids5 Fluid
Pump
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
25 Spin Generator
 Output Power
32 Monitor Generator Power6.1
Power Sensor
25 Spin Generator
 Mechanical Energy
24 Drive Turbine8 Turbine
— 23 —
Saturday, November 21, 2009
4 Interfaces
Table 10 6.1 Power Sensor External I/O
Function
32 Monitor Generator Power
Interface Item
 Output Power
Interfacing Entity
25 Spin Generator6 Generator
Table 11 7 Hot Water Pipe External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System
 Water
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System6
Generator
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
— 24 —
Saturday, November 21, 2009
4 Interfaces
Table 11 7 Hot Water Pipe External I/O
Function
Interface Item
Interfacing Entity
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
22 Pump Water
 Cold Water
26 Condense Working Fluid3
Condenser
22 Pump Water
 Hot Water
23 Evaporate Working Fluid4
Evaporator
23 Evaporate Working
FluidCOOL OCEAN WATER
23 Evaporate Working
FluidDEEP COLD OCEAN
WATER
23 Evaporate Working
FluidWARM OCEAN WATER
23 Evaporate Working
FluidWARM OCEAN SURFACE
WATER
22 Pump Water
 Pump Power
36 Monitor Pump Power9.1
Pump Power Sensor
22 Pump Water
 Net Power
25 Spin Generator6 Generator
22 Pump Water
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
— 25 —
Saturday, November 21, 2009
4 Interfaces
Table 12 8 Turbine External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System
 Water
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System6
Generator
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
— 26 —
Saturday, November 21, 2009
4 Interfaces
Table 12 8 Turbine External I/O
Function
Interface Item
Interfacing Entity
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
24 Drive Turbine
 Ammonia Steam
26 Condense Working Fluid3
Condenser
24 Drive Turbine
 Mechanical Energy
25 Spin Generator6 Generator
24 Drive Turbine
 Speed
31 Monitor Turbine Speed8.1
Tachometer
24 Drive Turbine
 Steam Ammonia
23 Evaporate Working Fluid4
Evaporator
23 Evaporate Working
FluidCOOL OCEAN WATER
23 Evaporate Working
FluidDEEP COLD OCEAN
WATER
23 Evaporate Working
FluidWARM OCEAN WATER
23 Evaporate Working
FluidWARM OCEAN SURFACE
WATER
Table 13 8.1 Tachometer External I/O
Function
31 Monitor Turbine Speed
Interface Item
 Speed
Interfacing Entity
24 Drive Turbine8 Turbine
Table 14 9 Water Pump External I/O
Function
0 Operate OTEC System
Interface Item
 Water
Interfacing Entity
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
— 27 —
Saturday, November 21, 2009
4 Interfaces
Table 14 9 Water Pump External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System6
Generator
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
— 28 —
Saturday, November 21, 2009
4 Interfaces
Table 14 9 Water Pump External I/O
Function
Interface Item
Interfacing Entity
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
22 Pump Water
 Cold Water
26 Condense Working Fluid3
Condenser
22 Pump Water
 Hot Water
23 Evaporate Working Fluid4
Evaporator
23 Evaporate Working
FluidCOOL OCEAN WATER
23 Evaporate Working
FluidDEEP COLD OCEAN
WATER
23 Evaporate Working
FluidWARM OCEAN WATER
23 Evaporate Working
FluidWARM OCEAN SURFACE
WATER
22 Pump Water
 Pump Power
36 Monitor Pump Power9.1
Pump Power Sensor
22 Pump Water
 Net Power
25 Spin Generator6 Generator
22 Pump Water
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
Table 15 9.1 Pump Power Sensor External I/O
Function
36 Monitor Pump Power
Interface Item
 Pump Power
Interfacing Entity
21 Pump Working Fluids5 Fluid
Pump
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
Table 16 COOL OCEAN WATER External I/O
Function
0 Operate OTEC System
Interface Item
 Water
Interfacing Entity
0 Operate OTEC System1
— 29 —
Saturday, November 21, 2009
4 Interfaces
Table 16 COOL OCEAN WATER External I/O
Function
Interface Item
Interfacing Entity
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System6
Generator
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
— 30 —
Saturday, November 21, 2009
4 Interfaces
Table 16 COOL OCEAN WATER External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
23 Evaporate Working Fluid
 Fluid Pressure
35 Monitor Fluid Pressure5.1
Pressure Sensor
23 Evaporate Working Fluid
 Steam Ammonia
24 Drive Turbine8 Turbine
23 Evaporate Working Fluid
 Temperature
33 Monitor Condenser
Temperature3.1 ThermostatC
34 Monitor Evaporator
Temperature4.1 ThermostatE
23 Evaporate Working Fluid
 Hot Water
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
23 Evaporate Working Fluid
 Liquid Ammonia
26 Condense Working Fluid3
Condenser
Table 17 DEEP COLD OCEAN WATER External I/O
Function
0 Operate OTEC System
Interface Item
 Water
Interfacing Entity
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
— 31 —
Saturday, November 21, 2009
4 Interfaces
Table 17 DEEP COLD OCEAN WATER External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System6
Generator
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
23 Evaporate Working Fluid
 Fluid Pressure
35 Monitor Fluid Pressure5.1
Pressure Sensor
23 Evaporate Working Fluid
 Steam Ammonia
24 Drive Turbine8 Turbine
23 Evaporate Working Fluid
 Temperature
33 Monitor Condenser
Temperature3.1 ThermostatC
— 32 —
Saturday, November 21, 2009
4 Interfaces
Table 17 DEEP COLD OCEAN WATER External I/O
Function
Interface Item
Interfacing Entity
34 Monitor Evaporator
Temperature4.1 ThermostatE
23 Evaporate Working Fluid
 Hot Water
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
23 Evaporate Working Fluid
 Liquid Ammonia
26 Condense Working Fluid3
Condenser
Table 18 WARM OCEAN WATER External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System
 Water
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
0 Operate OTEC System
 Water
0 Operate OTEC System6
Generator
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
— 33 —
Saturday, November 21, 2009
4 Interfaces
Table 18 WARM OCEAN WATER External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN SURFACE WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
23 Evaporate Working Fluid
 Fluid Pressure
35 Monitor Fluid Pressure5.1
Pressure Sensor
23 Evaporate Working Fluid
 Steam Ammonia
24 Drive Turbine8 Turbine
23 Evaporate Working Fluid
 Temperature
33 Monitor Condenser
Temperature3.1 ThermostatC
34 Monitor Evaporator
Temperature4.1 ThermostatE
23 Evaporate Working Fluid
 Hot Water
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
23 Evaporate Working Fluid
 Liquid Ammonia
26 Condense Working Fluid3
Condenser
Table 19 WARM OCEAN SURFACE WATER External I/O
Function
0 Operate OTEC System
Interface Item
 Water
Interfacing Entity
0 Operate OTEC System1
Central Computer
— 34 —
Saturday, November 21, 2009
4 Interfaces
Table 19 WARM OCEAN SURFACE WATER External I/O
Function
Interface Item
Interfacing Entity
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System6
Generator
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
OCEAN WATER
0 Operate OTEC System
 Water
0 Operate OTEC System6
Generator
0 Operate OTEC System1
Central Computer
0 Operate OTEC System2 Cold
Water Pipe
0 Operate OTEC System3
Condenser
0 Operate OTEC System4
Evaporator
0 Operate OTEC System5 Fluid
Pump
0 Operate OTEC System7 Hot
Water Pipe
0 Operate OTEC System8
Turbine
0 Operate OTEC System9 Water
Pump
0 Operate OTEC SystemCOOL
OCEAN WATER
0 Operate OTEC SystemDEEP
COLD OCEAN WATER
0 Operate OTEC SystemWARM
— 35 —
Saturday, November 21, 2009
4 Interfaces
Table 19 WARM OCEAN SURFACE WATER External I/O
Function
Interface Item
Interfacing Entity
OCEAN WATER
2 Generate Power
 Data
3 Monitor Health1 Central
Computer
2 Generate Power
 System Controls
1 Control OTEC System1 Central
Computer
13 Control System1 Central
Computer
14 Stop OTEC System1 Central
Computer
23 Evaporate Working Fluid
 Fluid Pressure
35 Monitor Fluid Pressure5.1
Pressure Sensor
23 Evaporate Working Fluid
 Steam Ammonia
24 Drive Turbine8 Turbine
23 Evaporate Working Fluid
 Temperature
33 Monitor Condenser
Temperature3.1 ThermostatC
34 Monitor Evaporator
Temperature4.1 ThermostatE
23 Evaporate Working Fluid
 Hot Water
22 Pump Water2 Cold Water
Pipe
22 Pump Water7 Hot Water Pipe
22 Pump Water9 Water Pump
23 Evaporate Working Fluid
 Liquid Ammonia
26 Condense Working Fluid3
Condenser
Part II - Interfaces
Cold Water input
Connecting Systems/Components:
2 Cold Water Pipe
0 OTEC System
DEEP COLD OCEAN WATER
Cool Water output
Connecting Systems/Components:
3 Condenser
0 OTEC System
COOL OCEAN WATER
Surface water input
Connecting Systems/Components:
7 Hot Water Pipe
— 36 —
Saturday, November 21, 2009
4 Interfaces
0 OTEC System
WARM OCEAN SURFACE WATER
Warm Water Output
Connecting Systems/Components:
4 Evaporator
0 OTEC System
WARM OCEAN WATER
Part III - Links
Part IV - Exchange Characteristics
— 37 —
Saturday, November 21, 2009
5 Functional Model
Part I - Functional List
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
11 Start OTEC System
12 Run OTEC CPU
13 Control System
14 Stop OTEC System
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Part II - Behavioral Model
0 Operate OTEC System
Description:
Top Level fuction or view of the OTEC System
Performed By:
1 Central Computer
2 Cold Water Pipe
3 Condenser
4 Evaporator
5 Fluid Pump
6 Generator
7 Hot Water Pipe
8 Turbine
9 Water Pump
COOL OCEAN WATER
DEEP COLD OCEAN WATER
WARM OCEAN WATER
WARM OCEAN SURFACE WATER
Based On:
— 38 —
Saturday, November 21, 2009
5 Functional Model
C.1 Electricity Cost
C.2 Time to Market
C.3 Renewable
C.4 Adaptable
C.5 Scalable
C.6 Environment
C.7 Energy Capacity
C.8 Availability
C.9 Efficiency
C.10 Lifetime
C.11 Job Creation
C.12 O&M Costs
C.13 Capital Cost
F.1 OTEC Process
F.2 Working Fluid
F.3 Power
F.4 Transmission Voltage
F.5 Power Factor
F.6 Distribution Voltage
F.7 Frequency
F.8 Generator Connection
F.9 Distribution regulations
F.10 Distribution Cable
F.11 Transmission Protection
F.12 Distance from shore
N.1 Command
N.2 Communication
N.3 Monitoring and Control
N.4 System Lifetime
N.5 System Availability
N.6 Survivability
N.7 Construction
N.8 Maintenance of Subsystems
N.9 MTTR
N.10 Sea Safety
N.11 Environmental Safety
Q.1 Modularity
Q.2 Component Lifetime
Q.3 Quality Efficiency
Q.4 Commercial Components
Q.5 Recycled Power
Q.6 Supportability
Q.7 Human Factors
Q.8 Redundancies
Q.9 Power Cable
Q.10 Used Water
— 39 —
Saturday, November 21, 2009
5 Functional Model
Table 20 0 Operate OTEC System Interfacing Items
Interfacing Item
Authorization
Source / Destination
Triggers:
0 Operate OTEC System
1 Control OTEC System
11 Start OTEC System
14 Stop OTEC System
Performance Rules
Triggers:
0 Operate OTEC System
1 Control OTEC System
12 Run OTEC CPU
Power
Output From:
0 Operate OTEC System
2 Generate Power
25 Spin Generator
Regulations
Triggers:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Startup Power
Input To:
0 Operate OTEC System
2 Generate Power
— 40 —
Saturday, November 21, 2009
5 Functional Model
Table 20 0 Operate OTEC System Interfacing Items
Interfacing Item
Source / Destination
21 Pump Working Fluids
Status
Output From:
0 Operate OTEC System
3 Monitor Health
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Water
Input To:
0 Operate OTEC System
Output From:
0 Operate OTEC System
Performanc
e Rules
Startup
Standards
Power
Regulations
Update
Authorizatio
Deep Cold
n Water
Hot
Surface ...
1
Ref.
2
Control OTEC
System
3
Generate Power
System
Data
Controls
Cool Water
Warm
Water
Ref.
Monitor Health
Status
Power
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Operate OTEC Sys tem
0
University User
Figure 3 Operate OTEC System Enhanced FFBD
— 41 —
Saturday, November 21, 2009
5 Functional Model
1
Ref.
2
Control OTEC
System
3
Generate Power
Ref.
Monitor Health
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Operate OTEC System
0
University User
Figure 4 Operate OTEC System FFBD
Authorization
Performanc...
Standards
Update
Deep Cold ...
Hot Surfac...
Regulations
Standards
Standards
1
System
Controls
Control OTEC
System
2
Cool Water
Power
Warm Water
Data
Generate Power
3
Monitor Health
Status
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Operate OTEC System
0
University User
Figure 5 Operate OTEC System N2 Diagram
— 42 —
Saturday, November 21, 2009
5 Functional Model
Authorization
Performance Rules
Regulations
Standards
1
Update
Control OTEC
System
System Controls
2
Startup Power
Hot Surface Water
Deep Cold Water
Generate Power
Warm Water
Cool Water
Power
Data
3
Status
Monitor Health
Cold Water Pipe
Central
Condenser
Computer
COOL OCEAN WATER
DEEP COLD OCEAN WATER
Evaporator
Fluid Pump
Generator
Hot Water Pipe
Turbine
WARM OCEAN WATER
WARM OCEAN SURFACE WATER
Water Pump
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Operate OTEC Sys tem
— 43 —
0
University User
Saturday, November 21, 2009
5 Functional Model
Figure 6 Operate OTEC System IDEF0 Diagram
1 Control OTEC System
Performed By:
1 Central Computer
Based On:
N.1 Command
N.2 Communication
N.3 Monitoring and Control
N.11 Environmental Safety
Q.7 Human Factors
Q.8 Redundancies
S.11 Emergency Shutoff
S.13 Computer
S.14 Processing
S.15 Error Monitoring
S.16 Health Monitoring
S.17 Corrective Action
Table 21 1 Control OTEC System Interfacing Items
Interfacing Item
Authorization
Source / Destination
Triggers:
0 Operate OTEC System
1 Control OTEC System
11 Start OTEC System
14 Stop OTEC System
Performance Rules
Triggers:
0 Operate OTEC System
1 Control OTEC System
12 Run OTEC CPU
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
— 44 —
Saturday, November 21, 2009
5 Functional Model
Table 21 1 Control OTEC System Interfacing Items
Interfacing Item
Source / Destination
36 Monitor Pump Power
System Controls
Input To:
2 Generate Power
21 Pump Working Fluids
22 Pump Water
Output From:
1 Control OTEC System
13 Control System
14 Stop OTEC System
Update
Input To:
1 Control OTEC System
12 Run OTEC CPU
Authorizatio
n
Update
11
Ref.
Performanc
Standards
e Rules
12
Start OTEC
System
13
Run OTEC CPU
Start
14
2
Stop OTEC
System
Control System
Generate Power
System
Controls
Controls
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Control OTEC System
1
University User
Figure 7 Control OTEC System Enhanced FFBD
11
Ref.
12
Start OTEC
System
Run OTEC CPU
13
14
2
Stop OTEC
System
Control System
Generate Power
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Control OTEC System
1
Figure 8 Control OTEC System FFBD
— 45 —
University User
Saturday, November 21, 2009
5 Functional Model
Performance
Rules
Update
Authorization
Standards
Authorization
11
Start OTEC
System
Start
12
Controls
Run OTEC CPU
Controls
13
System
Controls
Control System
14
Stop OTEC
System
System
Controls
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Control OTEC System
1
University User
Figure 9 Control OTEC System N2 Diagram
— 46 —
Saturday, November 21, 2009
5 Functional Model
Performance Rules
Standards
Authorization
11
Start OTEC
System
Start
12
Update
Run OTEC CPU
Controls
13
System Controls
Control System
14
Stop OTEC
System
Central Computer
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Control OTEC System
1
Figure 10 Control OTEC System IDEF0 Diagram
2 Generate Power
Performed By:
2 Cold Water Pipe
3 Condenser
4 Evaporator
5 Fluid Pump
6 Generator
7 Hot Water Pipe
8 Turbine
9 Water Pump
COOL OCEAN WATER
DEEP COLD OCEAN WATER
— 47 —
University User
Saturday, November 21, 2009
5 Functional Model
WARM OCEAN WATER
WARM OCEAN SURFACE WATER
Based On:
F.1 OTEC Process
F.2 Working Fluid
F.3 Power
F.4 Transmission Voltage
F.5 Power Factor
F.6 Distribution Voltage
F.7 Frequency
F.8 Generator Connection
F.9 Distribution regulations
F.10 Distribution Cable
F.11 Transmission Protection
F.12 Distance from shore
N.4 System Lifetime
N.6 Survivability
N.7 Construction
Q.2 Component Lifetime
Q.3 Quality Efficiency
Q.4 Commercial Components
Q.5 Recycled Power
Q.6 Supportability
Q.9 Power Cable
Q.10 Used Water
S.1 Pumps
S.2 Heat Exchangers
S.3 Turbine
S.4 Generator
S.5 Component Selection
S.6 Voltage Regulators
Table 22 2 Generate Power Interfacing Items
Interfacing Item
Cool Water
Source / Destination
Output From:
2 Generate Power
26 Condense Working Fluid
Data
Input To:
3 Monitor Health
Output From:
2 Generate Power
Deep Cold Water
Input To:
2 Generate Power
22 Pump Water
Hot Surface Water
Input To:
— 48 —
Saturday, November 21, 2009
5 Functional Model
Table 22 2 Generate Power Interfacing Items
Interfacing Item
Source / Destination
2 Generate Power
22 Pump Water
Power
Output From:
0 Operate OTEC System
2 Generate Power
25 Spin Generator
Regulations
Triggers:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Startup Power
Input To:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
System Controls
Input To:
2 Generate Power
21 Pump Working Fluids
22 Pump Water
Output From:
1 Control OTEC System
— 49 —
Saturday, November 21, 2009
5 Functional Model
Table 22 2 Generate Power Interfacing Items
Interfacing Item
Source / Destination
13 Control System
14 Stop OTEC System
Warm Water
Output From:
2 Generate Power
23 Evaporate Working Fluid
Regulations
Startup
Power
Liquid
Ammonia
1
System
Controls
Deep Cold
Net Power
Water
21
Control OTEC
System
22
Pump Working
Fluids
Pump
Power
Hot
Surface ...
Standards
23
Pump Water
Fluid
Hot Water
Pressure
24
Evaporate
Working Fluid
Temperatur
Cold Water
e
25
Drive Turbine
Steam
Mechanical
Ammonia
Energy
Warm
Water
26
Spin Generator
Ammonia
Power
Steam
3
Condense
Working Fluid
Output
Power
Monitor Health
Cool Water
Speed
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Generate Power
2
University User
Figure 11 Generate Power Enhanced FFBD
1
21
Control OTEC
System
Pump Working
Fluids
22
23
Pump Water
24
Evaporate
Working Fluid
25
Drive Turbine
26
Condense
Working Fluid
Spin Generator
Monitor Health
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Generate Power
Figure 12 Generate Power FFBD
— 50 —
3
2
University User
Saturday, November 21, 2009
5 Functional Model
Regulations
Startup
Power
System Con...
Deep Cold ...
Hot Surfac...
Regulations
System Con...
Regulations
Regulations
Standards
Regulations
Regulations
Standards
21
Fluid Pressure
Pump Power
Pump Working
Fluids
22
Hot Water
Pump Water
Cold Water
Pump Power
23
Fluid Pressure
Temperature
Warm Water
Steam
Ammonia
Evaporate
Working Fluid
24
Mechanical
Energy
Drive Turbine
Ammonia
Steam
Speed
25
Net Power
Net Power
Output Power
Power
Spin Generator
26
Liquid
Ammonia
Liquid
Ammonia
Condense
Working Fluid
Cool Water
Temperature
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Generate Power
2
Figure 13 Generate Power N2 Diagram
— 51 —
University User
Saturday, November 21, 2009
5 Functional Model
Standards
Regulations
Startup Power
System Controls
21
Fluid Pressure
Pump Working
Fluids
Data
Pump Power
22
Deep Cold Water
Hot Surface Water
Pump Power
Pump Water
Cold Water
Hot Water
23
Evaporate
Working Fluid
Temperature
Fluid Pressure
Warm Water
Steam Ammonia
24
Speed
Drive Turbine
Ammonia Steam
Mechanical Energy
25
Spin Generator
Power
Output Power
Net Power
26
Temperature
Condense
Working Fluid
Fluid Pump
Cold Water Pipe
Hot Water Pipe
Water Pump
COOL OCE...
DEEP COLD OCE...
Evaporator
WARM OCE...
WARM OCEAN SURFA...
Turbine
Generator
Performed By:
1 Central Computer
Based On:
N.3 Monitoring and Control
— 52 —
Condenser
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
(University) Generate Power
Figure 14 Generate Power IDEF0 Diagram
3 Monitor Health
Cool Water
Liquid Ammonia
2
University User
Saturday, November 21, 2009
5 Functional Model
N.8 Maintenance of Subsystems
N.9 MTTR
N.11 Environmental Safety
Q.3 Quality Efficiency
Q.4 Commercial Components
Q.6 Supportability
S.7 Tachometer rating
S.8 Tachometer status
S.9 Thermocouple rating
S.10 Voltage Meters
S.11 Emergency Shutoff
S.12 Contol subsystem
Table 23 3 Monitor Health Interfacing Items
Interfacing Item
Data
Source / Destination
Input To:
3 Monitor Health
Output From:
2 Generate Power
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Status
Output From:
0 Operate OTEC System
3 Monitor Health
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
— 53 —
Saturday, November 21, 2009
5 Functional Model
Output
Power
2
Generate Power
Fluid
Standards
Pressure
32
Temperatur
e
35
Monitor
Generator Power
34
Monitor
Evaporator
Temperature
Monitor Fluid
Pressure
Pump
Power
Speed
36
31
Monitor Pump
Power
33
Monitor
Condenser
Temperature
Monitor Turbine
Speed
Ref.
Status
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
3
University User
(University) Monitor Health
Figure 15 Monitor Health Enhanced FFBD
2
Generate Power
32
Monitor
Generator Power
35
34
Monitor Fluid
Pressure
36
Monitor
Evaporator
Temperature
Monitor Pump
Power
31
33
Ref.
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
Figure 16 Monitor Health FFBD
— 54 —
Monitor
Condenser
Temperature
Monitor Turbine
Speed
3
University User
(University) Monitor Health
Saturday, November 21, 2009
5 Functional Model
Output Power
Standards
Fluid Pressure
Standards
Standards
Temperature
Pump Power
Standards
Speed
Standards
Standards
Temperature
32
Monitor
Generator Power
Status
35
Monitor Fluid
Pressure
Status
34
Monitor
Evaporator
Temperature
Status
36
Monitor Pump
Power
Status
31
Monitor Turbine
Speed
Status
33
Monitor
Condenser
Temperature
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
3
Figure 17 Monitor Health N2 Diagram
— 55 —
Status
University User
(University) Monitor Health
Saturday, November 21, 2009
5 Functional Model
Standards
32
Output Power
Data
Monitor
Generator Power
Status
35
Fluid Pressure
Monitor Fluid
Pressure
34
Temperature
Monitor
Evaporator
Temperature
36
Pump Power
Monitor Pump
Power
31
Speed
Monitor Turbine
Speed
33
Temperature
Power Sensor
Pressure Sensor
ThermostatE
Pump Power Sensor
Monitor
Condenser
Temperature
ThermostatC
Tachometer
Central Computer
Date:
Saturday, November 21, 2009
Author:
Number:
Name:
3
Figure 18 Monitor Health IDEF0 Diagram
11 Start OTEC System
Performed By:
1 Central Computer
Table 24 11 Start OTEC System Interfacing Items
Interfacing Item
Authorization
Source / Destination
Triggers:
0 Operate OTEC System
1 Control OTEC System
11 Start OTEC System
14 Stop OTEC System
— 56 —
University User
(University) Monitor Health
Saturday, November 21, 2009
5 Functional Model
Table 24 11 Start OTEC System Interfacing Items
Interfacing Item
Start
Source / Destination
Input To:
13 Control System
Output From:
11 Start OTEC System
12 Run OTEC CPU
Performed By:
1 Central Computer
Table 25 12 Run OTEC CPU Interfacing Items
Interfacing Item
Controls
Source / Destination
Input To:
13 Control System
14 Stop OTEC System
Output From:
12 Run OTEC CPU
Performance Rules
Triggers:
0 Operate OTEC System
1 Control OTEC System
12 Run OTEC CPU
Update
Input To:
1 Control OTEC System
12 Run OTEC CPU
13 Control System
Performed By:
1 Central Computer
Table 26 13 Control System Interfacing Items
Interfacing Item
Controls
Source / Destination
Input To:
13 Control System
14 Stop OTEC System
Output From:
12 Run OTEC CPU
Standards
Triggers:
0 Operate OTEC System
— 57 —
Saturday, November 21, 2009
5 Functional Model
Table 26 13 Control System Interfacing Items
Interfacing Item
Source / Destination
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Start
Input To:
13 Control System
Output From:
11 Start OTEC System
System Controls
Input To:
2 Generate Power
21 Pump Working Fluids
22 Pump Water
Output From:
1 Control OTEC System
13 Control System
14 Stop OTEC System
14 Stop OTEC System
Performed By:
1 Central Computer
Table 27 14 Stop OTEC System Interfacing Items
Interfacing Item
Authorization
Source / Destination
Triggers:
0 Operate OTEC System
1 Control OTEC System
11 Start OTEC System
14 Stop OTEC System
Controls
Input To:
13 Control System
— 58 —
Saturday, November 21, 2009
5 Functional Model
Table 27 14 Stop OTEC System Interfacing Items
Interfacing Item
Source / Destination
14 Stop OTEC System
Output From:
12 Run OTEC CPU
System Controls
Input To:
2 Generate Power
21 Pump Working Fluids
22 Pump Water
Output From:
1 Control OTEC System
13 Control System
14 Stop OTEC System
21 Pump Working Fluids
Performed By:
5 Fluid Pump
Table 28 21 Pump Working Fluids Interfacing Items
Interfacing Item
Fluid Pressure
Source / Destination
Input To:
35 Monitor Fluid Pressure
Output From:
21 Pump Working Fluids
23 Evaporate Working Fluid
Liquid Ammonia
Input To:
21 Pump Working Fluids
23 Evaporate Working Fluid
Output From:
26 Condense Working Fluid
Net Power
Input To:
21 Pump Working Fluids
22 Pump Water
Output From:
25 Spin Generator
Pump Power
Input To:
36 Monitor Pump Power
Output From:
21 Pump Working Fluids
— 59 —
Saturday, November 21, 2009
5 Functional Model
Table 28 21 Pump Working Fluids Interfacing Items
Interfacing Item
Source / Destination
22 Pump Water
Regulations
Triggers:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
Startup Power
Input To:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
System Controls
Input To:
2 Generate Power
21 Pump Working Fluids
22 Pump Water
Output From:
1 Control OTEC System
13 Control System
14 Stop OTEC System
22 Pump Water
Performed By:
2 Cold Water Pipe
7 Hot Water Pipe
9 Water Pump
Table 29 22 Pump Water Interfacing Items
Interfacing Item
Cold Water
Source / Destination
Input To:
26 Condense Working Fluid
Output From:
22 Pump Water
Deep Cold Water
Input To:
2 Generate Power
22 Pump Water
— 60 —
Saturday, November 21, 2009
5 Functional Model
Table 29 22 Pump Water Interfacing Items
Interfacing Item
Hot Surface Water
Source / Destination
Input To:
2 Generate Power
22 Pump Water
Hot Water
Input To:
23 Evaporate Working Fluid
Output From:
22 Pump Water
Net Power
Input To:
21 Pump Working Fluids
22 Pump Water
Output From:
25 Spin Generator
Pump Power
Input To:
36 Monitor Pump Power
Output From:
21 Pump Working Fluids
22 Pump Water
Regulations
Triggers:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
System Controls
Input To:
2 Generate Power
21 Pump Working Fluids
22 Pump Water
Output From:
1 Control OTEC System
13 Control System
14 Stop OTEC System
23 Evaporate Working Fluid
Performed By:
4 Evaporator
— 61 —
Saturday, November 21, 2009
5 Functional Model
COOL OCEAN WATER
DEEP COLD OCEAN WATER
WARM OCEAN WATER
WARM OCEAN SURFACE WATER
Table 30 23 Evaporate Working Fluid Interfacing Items
Interfacing Item
Fluid Pressure
Source / Destination
Input To:
35 Monitor Fluid Pressure
Output From:
21 Pump Working Fluids
23 Evaporate Working Fluid
Hot Water
Input To:
23 Evaporate Working Fluid
Output From:
22 Pump Water
Liquid Ammonia
Input To:
21 Pump Working Fluids
23 Evaporate Working Fluid
Output From:
26 Condense Working Fluid
Regulations
Triggers:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
Steam Ammonia
Input To:
24 Drive Turbine
Output From:
23 Evaporate Working Fluid
Temperature
Input To:
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
Output From:
23 Evaporate Working Fluid
26 Condense Working Fluid
Warm Water
Output From:
— 62 —
Saturday, November 21, 2009
5 Functional Model
Table 30 23 Evaporate Working Fluid Interfacing Items
Interfacing Item
Source / Destination
2 Generate Power
23 Evaporate Working Fluid
24 Drive Turbine
Performed By:
8 Turbine
Table 31 24 Drive Turbine Interfacing Items
Interfacing Item
Ammonia Steam
Source / Destination
Input To:
26 Condense Working Fluid
Output From:
24 Drive Turbine
Mechanical Energy
Input To:
25 Spin Generator
Output From:
24 Drive Turbine
Regulations
Triggers:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
Speed
Input To:
31 Monitor Turbine Speed
Output From:
24 Drive Turbine
Steam Ammonia
Input To:
24 Drive Turbine
Output From:
23 Evaporate Working Fluid
25 Spin Generator
Performed By:
— 63 —
Saturday, November 21, 2009
5 Functional Model
6 Generator
Table 32 25 Spin Generator Interfacing Items
Interfacing Item
Mechanical Energy
Source / Destination
Input To:
25 Spin Generator
Output From:
24 Drive Turbine
Net Power
Input To:
21 Pump Working Fluids
22 Pump Water
Output From:
25 Spin Generator
Output Power
Input To:
32 Monitor Generator Power
Output From:
25 Spin Generator
Power
Output From:
0 Operate OTEC System
2 Generate Power
25 Spin Generator
Regulations
Triggers:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
— 64 —
Saturday, November 21, 2009
5 Functional Model
Table 32 25 Spin Generator Interfacing Items
Interfacing Item
Source / Destination
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
26 Condense Working Fluid
Performed By:
3 Condenser
Table 33 26 Condense Working Fluid Interfacing Items
Interfacing Item
Ammonia Steam
Source / Destination
Input To:
26 Condense Working Fluid
Output From:
24 Drive Turbine
Cold Water
Input To:
26 Condense Working Fluid
Output From:
22 Pump Water
Cool Water
Output From:
2 Generate Power
26 Condense Working Fluid
Liquid Ammonia
Input To:
21 Pump Working Fluids
23 Evaporate Working Fluid
Output From:
26 Condense Working Fluid
Regulations
Triggers:
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
— 65 —
Saturday, November 21, 2009
5 Functional Model
Table 33 26 Condense Working Fluid Interfacing Items
Interfacing Item
Source / Destination
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Temperature
Input To:
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
Output From:
23 Evaporate Working Fluid
26 Condense Working Fluid
31 Monitor Turbine Speed
Performed By:
8.1 Tachometer
Table 34 31 Monitor Turbine Speed Interfacing Items
Interfacing Item
Speed
Source / Destination
Input To:
31 Monitor Turbine Speed
Output From:
24 Drive Turbine
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
— 66 —
Saturday, November 21, 2009
5 Functional Model
Table 34 31 Monitor Turbine Speed Interfacing Items
Interfacing Item
Source / Destination
33
34
35
36
Status
Monitor Condenser Temperature
Monitor Evaporator Temperature
Monitor Fluid Pressure
Monitor Pump Power
Output From:
0 Operate OTEC System
3 Monitor Health
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
32 Monitor Generator Power
Performed By:
6.1 Power Sensor
Table 35 32 Monitor Generator Power Interfacing Items
Interfacing Item
Output Power
Source / Destination
Input To:
32 Monitor Generator Power
Output From:
25 Spin Generator
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
— 67 —
Saturday, November 21, 2009
5 Functional Model
Table 35 32 Monitor Generator Power Interfacing Items
Interfacing Item
Status
Source / Destination
Output From:
0 Operate OTEC System
3 Monitor Health
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
33 Monitor Condenser Temperature
Performed By:
3.1 ThermostatC
Table 36 33 Monitor Condenser Temperature Interfacing Items
Interfacing Item
Standards
Source / Destination
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Status
Output From:
0 Operate OTEC System
3 Monitor Health
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
— 68 —
Saturday, November 21, 2009
5 Functional Model
Table 36 33 Monitor Condenser Temperature Interfacing Items
Interfacing Item
Temperature
Source / Destination
Input To:
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
Output From:
23 Evaporate Working Fluid
26 Condense Working Fluid
34 Monitor Evaporator Temperature
Performed By:
4.1 ThermostatE
Table 37 34 Monitor Evaporator Temperature Interfacing Items
Interfacing Item
Standards
Source / Destination
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Status
Output From:
0 Operate OTEC System
3 Monitor Health
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Temperature
Input To:
33 Monitor Condenser Temperature
— 69 —
Saturday, November 21, 2009
5 Functional Model
Table 37 34 Monitor Evaporator Temperature Interfacing Items
Interfacing Item
Source / Destination
34 Monitor Evaporator Temperature
Output From:
23 Evaporate Working Fluid
26 Condense Working Fluid
35 Monitor Fluid Pressure
Performed By:
5.1 Pressure Sensor
Table 38 35 Monitor Fluid Pressure Interfacing Items
Interfacing Item
Fluid Pressure
Source / Destination
Input To:
35 Monitor Fluid Pressure
Output From:
21 Pump Working Fluids
23 Evaporate Working Fluid
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Status
Output From:
0 Operate OTEC System
3 Monitor Health
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
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Saturday, November 21, 2009
5 Functional Model
Table 38 35 Monitor Fluid Pressure Interfacing Items
Interfacing Item
Source / Destination
36 Monitor Pump Power
36 Monitor Pump Power
Performed By:
9.1 Pump Power Sensor
Table 39 36 Monitor Pump Power Interfacing Items
Interfacing Item
Pump Power
Source / Destination
Input To:
36 Monitor Pump Power
Output From:
21 Pump Working Fluids
22 Pump Water
Standards
Triggers:
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Status
Output From:
0 Operate OTEC System
3 Monitor Health
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Part III - Item Dictionary
— 71 —
Saturday, November 21, 2009
5 Functional Model
Ammonia Steam
Input To:
26 Condense Working Fluid
Output From:
24 Drive Turbine
Authorization
Triggers Function(s):
0 Operate OTEC System
1 Control OTEC System
11 Start OTEC System
14 Stop OTEC System
Cold Water
Decomposes:
Water
Input To:
26 Condense Working Fluid
Output From:
22 Pump Water
Controls
Input To:
13 Control System
14 Stop OTEC System
Output From:
12 Run OTEC CPU
Cool Water
Decomposes:
Water
Output From:
2 Generate Power
26 Condense Working Fluid
Data
Decomposed into Lower-Level Item(s):
Fluid Pressure
Output Power
Pump Power
Speed
Temperature
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Saturday, November 21, 2009
5 Functional Model
Input To:
3 Monitor Health
Output From:
2 Generate Power
Deep Cold Water
Decomposes:
Water
Input To:
2 Generate Power
22 Pump Water
Fluid Pressure
Decomposes:
Data
Input To:
35 Monitor Fluid Pressure
Output From:
21 Pump Working Fluids
23 Evaporate Working Fluid
Hot Surface Water
Decomposes:
Water
Input To:
2 Generate Power
22 Pump Water
Hot Water
Decomposes:
Water
Input To:
23 Evaporate Working Fluid
Output From:
22 Pump Water
Liquid Ammonia
Input To:
21 Pump Working Fluids
23 Evaporate Working Fluid
Output From:
26 Condense Working Fluid
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Saturday, November 21, 2009
5 Functional Model
Mechanical Energy
Input To:
25 Spin Generator
Output From:
24 Drive Turbine
Net Power
Input To:
21 Pump Working Fluids
22 Pump Water
Output From:
25 Spin Generator
Output Power
Decomposes:
Data
Input To:
32 Monitor Generator Power
Output From:
25 Spin Generator
Performance Rules
Triggers Function(s):
0 Operate OTEC System
1 Control OTEC System
12 Run OTEC CPU
Power
Output From:
0 Operate OTEC System
2 Generate Power
25 Spin Generator
Pump Power
Decomposes:
Data
Input To:
36 Monitor Pump Power
Output From:
21 Pump Working Fluids
22 Pump Water
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Saturday, November 21, 2009
5 Functional Model
Regulations
Triggers Function(s):
0 Operate OTEC System
2 Generate Power
21 Pump Working Fluids
22 Pump Water
23 Evaporate Working Fluid
24 Drive Turbine
25 Spin Generator
26 Condense Working Fluid
Speed
Decomposes:
Data
Input To:
31 Monitor Turbine Speed
Output From:
24 Drive Turbine
Standards
Triggers Function(s):
0 Operate OTEC System
1 Control OTEC System
2 Generate Power
3 Monitor Health
13 Control System
25 Spin Generator
26 Condense Working Fluid
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Start
Input To:
13 Control System
Output From:
11 Start OTEC System
Startup Power
Input To:
0 Operate OTEC System
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Saturday, November 21, 2009
5 Functional Model
2 Generate Power
21 Pump Working Fluids
Status
Decomposed into Lower-Level Item(s):
Update
Output From:
0 Operate OTEC System
3 Monitor Health
31 Monitor Turbine Speed
32 Monitor Generator Power
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
35 Monitor Fluid Pressure
36 Monitor Pump Power
Steam Ammonia
Input To:
24 Drive Turbine
Output From:
23 Evaporate Working Fluid
System Controls
Input To:
2 Generate Power
21 Pump Working Fluids
22 Pump Water
Output From:
1 Control OTEC System
13 Control System
14 Stop OTEC System
Temperature
Decomposes:
Data
Input To:
33 Monitor Condenser Temperature
34 Monitor Evaporator Temperature
Output From:
23 Evaporate Working Fluid
26 Condense Working Fluid
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Saturday, November 21, 2009
5 Functional Model
Update
Decomposes:
Status
Input To:
1 Control OTEC System
12 Run OTEC CPU
Warm Water
Decomposes:
Water
Output From:
2 Generate Power
23 Evaporate Working Fluid
Water
Decomposed into Lower-Level Item(s):
Cold Water
Cool Water
Deep Cold Water
Hot Surface Water
Hot Water
Warm Water
Input To:
0 Operate OTEC System
Output From:
0 Operate OTEC System
— 77 —
Saturday, November 21, 2009
6 Risks
R.1 Aggressive Schedule
Risk Type: Schedule
Impact: Medium
Status: Active
Mitigation Plan:
Proactively track activities. Reconcile budgeted cost of work performed against actual cost of
work performed on weekly basis. Keep open communication with customer and partners to ensure
all parties are aware of any schedule changes or delays. Master Scheduling Planner to update and
publish overall schedule to the team to be posted on
R.2 Technology Incompatibilities
Risk Type: Technical
Impact: Medium
Status: Managing
Mitigation Plan:
Schedule monthly Interface IPT working group with partners and suppliers to understand
technology interfacing requirements and interface protocols. Ensure Interface Control
Documents(ICDs) are submitted, reviewed, and agreed upon prior to design finalization.
R.3 Requirements Creep
Risk Type: Technical
Impact: Low
Status: Managing
Mitigation Plan:
Work to develop firm and agreed upon stated and derived requirements with customer. Establish
Engineering Change review board and engineering change proposals as a vehicle for documenting
upscope activities. Monitor activities and only work to customer approved engineering changes.
R.4 Meeting Requirements and Expectations
Risk Type: Technical
Status: Active
Mitigation Plan:
— 78 —
Saturday, November 21, 2009
6 Risks
Create a Requirements Integrated Project Team (IPT) with customer. Participants to include
stakeholders including: partners, customer, and internal team. IPT will serve to discuss and
communicate all requirements changes with team. Project status will be communicated with all
parties so that all stakeholders will have an understanding of overall progress of the project.
R.5 Training of Personnel
Risk Type: Technical
Impact: Low
Status: Plan
Mitigation Plan:
Ensure that Training and Technology manuals are budgeted and reviewed againt logisitics team for
accurracy. Provide training material to the customer for final approval for comments prior to final
delivery.
R.6 Stability of Utility Provider
Risk Type: Cost
Status: Active
Mitigation Plan:
Work with Utility provider to ensure that proper infastructure is in place prior to Power Purchase
Contract is finalized and signed. Provide detailed requirements to local utillity provider early in
development phase such that proper eqiupment may be located or installed or ordered for interface
with OTEC system.
R.7 Environmental Impacts
Risk Type: Technical
Status: Active
Mitigation Plan:
Work with local environmental groups to understand concerns and particular ecosystems in area of
platform. Establish working dialog with community groups to understand issues and factor these
needs into development of the system.
R.8 Suitable location of platform (Best and worst case temperature differential,
distance from shore)
Risk Type: Technical
Impact: Low
Status: Active
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Saturday, November 21, 2009
6 Risks
Mitigation Plan:
Work with NOAA to fully understand the ocean bathometry and average monthly temperature at
depth. By understanding environmental factors, the most feasible location can be selected.
R.9 Selection of subcontractors
Risk Type: Technical
Status: Managing
Mitigation Plan:
Leverage subcontractor research performed by the Lockheed Martin customer and select
subcontractors with a history exemplary performance and ethics.
R.10 Selection of major components
Risk Type: Technical
Impact: Low
Status: Managing
Mitigation Plan:
Leverage expertise of partners and involve stakeholders
R.11 Suitable onshore manufacturing facility
Risk Type: Schedule
Status: Managing
Mitigation Plan:
Work with Nigerian Government to select an approprate fanufactoring facility. Work with
subcontracts team to identify commercially available ships, dry docks, tugs, and similar marine
construction crafts.
R.12 System security
Risk Type: Technical
Status: Active
Mitigation Plan:
Piracy has been an issue for some Oil Refineries in the Niger Delta. The OTEC system will best
practices to insure crew members are safe during their time on the platform.
R.13 Underwater marine cable
Risk Type: Technical
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Saturday, November 21, 2009
6 Risks
Status: Managing
Mitigation Plan:
Size marine cable to handle 15% higher voltage rating that the expected peak power distribution.
Work with local environmental groups to understand the particular environment where the cable is
to be placed to ensure minimal impact on the ecosystem.
R.14 Working Fluid Leaks
Risk Type: Technical
Status: Plan
Mitigation Plan:
Develop a strict maintenance schedule and procedure for the working fluid subsystem. Crew are to
follow the documented procedure and OSHA regulations to ensure ammonia spills are handled as
mandated in regulations.
R.15 OTEC Platform Costs
Risk Type: Cost
Impact: High
Status: Managing
Mitigation Plan:
Perform studies to determine the correct location for the OTEC platform, sizing of heat exchangers,
pumps, cold water pipe, and other major subsystem components
R.16 Unfamiliar Design Elements
Risk Type: Technical
Impact: Low
Status: Managing
Mitigation Plan:
Leverage expertise of partners and involve stakeholders
— 81 —