EcoBreeze™ IEC
Modular Indirect Evaporative Cooling Solution
APC by Schneider Electric – Ken Baer – 07/27/2010
Outline
● Drivers for Economizers
● ASHRAE 90.1 / TC 9.9
● Availability of Power
● Custom Systems
● EcoBreeze IEC
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Overview and Key Features
SKUs and Dimensions
Components
Electrical Information
How it works
• Inside the Data Center
• Outside the Data Center
• Module Function
● Performance
● Competitor Comparison
● Power Usage
APC by Schneider Electric – Ken Baer – 07/27/2010
Drivers for Economizers
ASHRAE 90.1
● ASHRAE 90.1 standards
are always evolving as
technology advances
● ASHRAE TC9.9 revisions
expanded the envelope for
recommended operating
conditions in the data
center
● This widened envelope
allows for more efficiency
and energy savings
through more hours of
economization
2004 Limits
Temp Range: 68-77°F
Humidity Range: 40-55%
APC by Schneider Electric – Ken Baer – 07/27/2010
2008 Limits
Temp Range: 64.4-80.6°F
Humidity Range: (DP 42°F) –
(60% RH & DP 59°F)
Economizer Requirements
None > 19kW >40kW APC by Schneider Electric – Ken Baer – 07/27/2010
1a, 1b, 2a, 3a, 4a
3b, 3c, 4b, 4c, 5b, 5c, 6b
2b, 5a, 6a, 7, 8
APC by Schneider Electric – Ken Baer – 07/27/2010
Drivers for Economizers
Energy Costs and Constraints
● Data centers are constantly
expanding which requires more
energy
● Local energy companies place
heavy restrictions on gaining
more power from the grid
● There is a need to reduce
cooling power consumption to
allow room for value-added IT
equipment
APC by Schneider Electric – Ken Baer – 07/27/2010
Drivers for Economizers
Custom Economizer Systems
Complex System
● Complex infrastructure
requires special controls,
installation, and maintenance
● Multiple vendors involved
● These systems have a higher
chance of failure and
emergency maintenance
EcoBreeze
APC by Schneider Electric – Ken Baer – 07/27/2010
Features and Benefits
●Two forms of Economization
● Air-to-Air Heat Exchange
● Indirect Evaporative Cooling
● Proportional DX refrigeration
circuit
●Variable Speed Compressor
● Electronically Commutated Fans
● Zero White Space Solution
● Modular Design for “Pay as you
Grow” Philosophy
●Chemical-Free Water Treatment
● 50kW Sensible Cooling Per
Module (No Dehumid/Humid)
● IEC Heat Exchanger
● No mixing of IT air and outside air
APC by Schneider Electric – Ken Baer – 07/27/2010
EcoBreeze - SKUs
SKU
ACECFR40100
ACECFR40101
ACECFR40200
ACECFR40201
ACECFR20100
ACECFR20101
ACECFR20200
ACECFR201
ACEC100
ACEC101
ACEC200
ACEC201
ACECCP100
ACECRTN10
ACECDIS10
ACECSJ100
Description
40' ISO Frame 208-230/3/60
40' ISO Frame 400/3/50
40' ISO Frame 480/3/60
40' ISO Frame 600/3/60
20' ISO Frame 208-230/3/60
20' ISO Frame 400/3/50
20' ISO Frame 480/3/60
20' ISO Frame 6003/60
EcoBreeze Module 208-230/3/60
EcoBreeze Module 400/3/50
EcoBreeze Module 480/3/60
EcoBreeze Module 600/3/60
EcoBreeze control panel
20' system IT air return duct
40' system IT air return duct
EcoBreeze Screw-Jack Assembly
APC by Schneider Electric – Ken Baer – 07/27/2010
40’ Frame contains up to 8 modules
(400kW of cooling capacity)
20’ Frame contains up to 4 modules
(200kW of cooling capacity)
40’ Frame (4 sections each)
20’ Frame (2 sections each)
Module
Dimensions
9.5 ft
(2.9m)
40’ Frame
*Same dimensions as HC (1AAA)
ISO shipping container
3.3 ft
9.5 ft
(2.9m)
40 ft
(12.2m)
8 ft
(2.4m)
APC by Schneider Electric – Ken Baer – 07/27/2010
(1.1m)
8.6 ft
(2.6m)
IT Air Intake Isolation Dampers
Central Water Trough
Electrical Box / Frame Controller
Redundant Pump/Pulse power
water treatment Access
Redundant Water Inlets
Weight (40’ frame): 8,000 lb (3,628 kg)
Max Weight (40’ frame, 8 modules, ducting, misc.): 33,500 lb (15,195 kg)
APC by Schneider Electric – Ken Baer – 07/27/2010
Central Water Trough
Redundant Water
Inlets
APC by Schneider Electric – Ken Baer – 07/27/2010
Chemical-Free Pulse power
Water Treatment System
Water Sump Tank
Redundant Water
Pumps
Intake Fans
Water Spray Nozzles / Drifdec
Condenser
IEC / Heat
Exchanger
Compressor
Outside Air Fan
Weight: 2,650 lb (1202 kg)
50 kW Cooling Capacity
APC by Schneider Electric – Ken Baer – 07/27/2010
Water Collector
Evaporator Coil / Filters
Outside Air Fan
(Scavenger Fan)
7,000 CFM per Module
5,000 CFM = 8495 m3/h
IT Air Intake Fans
5,000 CFM per Module
(40,000 CFM Fully Populated Frame)
APC by Schneider Electric – Ken Baer – 07/27/2010
7,000 CFM = 11893 m3/h
40,000 CFM = 67960 m3/h
EcoBreeze IEC
Electrical Information
● Variety of Voltages
● 208-230/3/60
● 460-480/3/60
● 575-600/3/60
● 400/3/50
●
●
●
●
●
Amp Draw less than 25A (per module based on 460V)
Schneider Electric Controller
Redundant Frame Electronics: RIM & MIM
ModBUS RTU Interface
Single Point Power Connection
APC by Schneider Electric – Ken Baer – 07/27/2010
How it works
High Level Application
● Mandatory Clearance:
● 4ft on ends of the frame
● 8ft between systems
APC by Schneider Electric – Ken Baer – 07/27/2010
1. Hot air from the servers is controlled through Hot Aisle Containment (HACS)
2. The hot air is then rises to the ceiling plenum and fed into the return ducting
of the EcoBreeze
3. The IT air is then cooled and supplied back to the data center through a
raised floor plenum or cold aisle diffusers
4. The cool air is forced through the perforated tiles in front of the server racks
and used to keep the servers at a safe operating temperature
APC by Schneider Electric – Ken Baer – 07/27/2010
1. Hot air from the servers is controlled through ducting connected to the racks
(VED)
2. The hot air is then rises to the ceiling plenum and fed into the return ducting
of the EcoBreeze
3. The IT air is then cooled and supplied back to the data center through cold
aisle diffusers. The diffusers have a bowling alley type discharge that sends
the air down the cold aisle
APC by Schneider Electric – Ken Baer – 07/27/2010
Hot ambient air is expelled
through the condenser to
the atmosphere
Hot Air is returned from
the Data Center 98°F102°F (37°C-39°C)
Cool Ambient Air is
brought in by the
Scavenger Fan
APC by Schneider Electric – Ken Baer – 07/27/2010
Cool IT Air is
Supplied
through the
evaporator coil
and back to
the Data
Center 77°F
(25°C)
Indirect Heat exchange
between the IT and ambient
airstreams (Evaporative or
Air-to-Air)
How it works
Cooling Module – Air to Air Heat Exchange
● When ambient air drops below
45°F (setpoint adjustable)
● System water is dumped to
prevent freezing and/or dumped
after 24 hours (user adjustable) of
spray free operation
● Only requires power of fans to
move the air (If DX assist is not needed)
● Cool air passes over the outside
of the heat exchanger channels,
cooling the hot IT air flowing
inside.
APC by Schneider Electric – Ken Baer – 07/27/2010
How it works
Cooling Module – Evaporative Cooling
● Heat is removed from the IT
air by evaporating water on the
outside of the heat exchanger
channels
● Water is supplied evenly over
the heat exchanger channels
via spray nozzles
● Maintains the adjustable IT
supply air set point
APC by Schneider Electric – Ken Baer – 07/27/2010
How it works
Cooling Module – Proportional DX Circuit
● Variable speed compressor
allows for optimal efficiency of
DX cooling
● Supplements evaporative
cooling to maintain the supply
air set point
● Designed for 60% of full load
● 410a Refrigerant
APC by Schneider Electric – Ken Baer – 07/27/2010
Competitive Analysis
1MW Design Data Center @ 60% Load
System Architecture
EcoBreeze
Air Econ w/ Heat Wheel
Water Cooled Chiller w/ Econ
Air Cooled Chiller w/ Econ
Fresh Air Econ
DX Fluid Cooled CRAC w/ Econ
Partial PUE kW-Hr/Yr
1.09
1.10
1.14
1.16
1.14
1.20
466,518
503,999
728,195
846,039
718,159
1,044,073
Relative
Power
45%
48%
70%
81%
69%
100%
1) Hot Aisle Containment 101.5°F Return to A/C
2) Supply Air / Cold Aisle 77°F
3) Bin Weather Data Saint Louis, MO
4) Does not reflect humidification losses
5) All system have fan control proportional to IT load % of design
55% more efficient than a perimeter CRAC w/ Economizer solution!
APC by Schneider Electric – Ken Baer – 07/27/2010
Performance Indirect Evaporative
Cooling Economizer
EcoBreeze ™IECs (Seattle, WA) 1,2,3,4,5
● Seattle, Washington
● Full economizer 8,550
hours per year
● Partial performance from
econ balance of year
● Worse case DX percentage
of IT load 10.4%
● Annualized COP ≈ 22
● Water use 47% of Year
Power Consuming
Component
Pump [kW-Hr/Yr]
IT Fan [kW-Hr/Yr]
Comp [kW-Hr/Yr]
OA Fan [kW-Hr/Yr]
Total [kW-Hr/Yr]
COP
1) 102°F return air temperature to cooling system from IT load
2) 75°F supply air temperature back to data center
3) Actual EcoBreeze IECs airflow is proportional to load factor
4) Data is analytical and presently not validated by imperical test
5) Data is subject to revision without notice
60% Load Factor, 75°F Supply Set-point, 102°F Return
APC by Schneider Electric – Ken Baer – 07/27/2010
IT Actual Load (10MW Design)
100%
80%
60%
40%
78,604
61,017
38,307
7,989
7,237,350
3,874,642 1,731,423
556,349
232,816
65,527
13,138
1,058
1,974,809
1,236,388 616,827
217,026
9,523,579
5,237,574 2,399,694
782,422
9
13
22
45
2,399,694 (kW hr) x
.08 ($/kW) =
~$191,975/year
mechanical operating
costs for 30 systems
Comparison Indirect Evaporative Economizer
to Chilled Water Plant with Economizer
Bin Weather Data - Seattle, WA
10000
Air to Air
CW Plant
5000
0
Full Econ
100%
Air to Air
CW Plant
50%
0%
Return Air
102.3°F
(38.8°C)
Supply Air
75°F (23.8°C)
Design Capacity
10 MW
Actual Load
6 MW (60%)
Max DX
CW Plant Tower: 10°F Range, 7°F Approach (95°F DB / 78°F WB). Chiller COP of 8
≈3°F Approach Econ Plate Frame Heat Exchanger
APC by Schneider Electric – Ken Baer – 07/27/2010
EcoBreeze Tools being developed
•Design Standards (Based on existing MW designs replacing the
cooling architecture with EcoBreeze). Partnering with a consulting
engineering firm to develop this standard.
•Performance tool that allows the customer to load their conditions
based on location. Out puts performance and operating costs for
power and water. Provides COP and partial PUE performance based
on load conditions.
•Submittal Drawing package showing Electro/Mechanical, Piping,
One-Line, Cad Blocks, Site Preparation Dwgs.
•EcoBreeze Video showing need for product based on changes to IT
environments which allow cooling through economization. Shows
application and airflow movement through the system.
•White paper being developed by Victor Alvelar
•Physical Models being created to show the application of the
EcoBreeze.
•Micro site that provides link to collateral generate for EcoBreeze
APC by Schneider Electric – Ken Baer – 07/27/2010
Questions??
APC by Schneider Electric – Ken Baer – 07/27/2010