Power Plant Raw Water Pipe Line Pressure Analysis
Objective: Study and define the water pipeline route for the construction of the Power Plant based on the balance of head loss. It is assumed that the pressure at the Booster Pump Station is 18 Bar.
From Booster pumpstation to Tapping point 02 (500NB Pipe)
Entry Imput Data
Darcy Weisbach
Name
Units
Flow
Gravity
Viscosity
Pipe Length
Density
m3/hr
m/s2
m/s2
m
kg/m3
Friction Pressure Loss
Water Speed
m/s
K/D
Reynold Number
Friction Coef.
https://www.advdelphisys.com/m
ichael_maley/moody_chart/
m
Friction Pressure Loss
Bar
Total Pressure Loss
Data
l/s
1259
9,81
0,000001
2600
995,6
349,72
Name
Units
Nominal diameter
mm
500
Pipe Internal Diameter
Globe Valves
90º Bends
roughness
mm
un
un
mm
498,4
1
6
0,2
Local Pressure Loss
K coef. Globe Valve
K coef. Bens
1,79
0,00040128
893872,42
Data
10
0,75
10
4,5
1,64
0,74
9
6
3,70
2,47
9
6
1,17
0,78
10
6
1,31
0,78
9
6
0,63
0,42
0,01656248
14,17
1,38
Local Pressure Loss
Bar
m
Bar
2,38
0,23
Units
mm
mm
un
un
mm
Data
400
396
1
8
0,2
1,62
From Tapping point 02 to 01 (400NB Pipe)
Entry Imput Data
Name
Flow
Gravity
Viscosity
Pipe Length
Density
Units
m3/hr
m/s2
m/s2
m
kg/m3
Friction Pressure Loss
Water Speed
m/s
K/D
Reynold Number
Friction Coef.
https://www.advdelphisys.com/m
m
Friction Pressure Loss
Bar
Total Pressure Loss
Data
l/s
349,72
1259
9,81
0,000001
2000
995,6
Name
Nominal diameter
Pipe Internal Diameter
Globe Valves
90º Bends
roughness
Local Pressure Loss
K coef. Globe Valve
K coef. Bens
2,84
0,00050505
1125015,19
9
0,75
0,01718759
35,71
3,49
m
Bar
4,09
Sum (bar)
Local Pressure Loss
Bar
6,17
0,60
5,71
OPTION 01 From tapping point to power plant (315NB)
Entry Imput Data
Name
Flow
Gravity
Viscosity
Pipe Length
Density
Units
m3/hr
m/s2
m/s2
m
kg/m3
Friction Pressure Loss
Water Speed
m/s
K/D
Reynold Number
Friction Coef.
https://www.advdelphisys.com/m
m
Friction Pressure Loss
Bar
Total Pressure Loss
Data
l/s
88,89
320
9,81
0,000001
5000
995,6
Name
Nominal diameter
Pipe Internal Diameter
Globe Valves
90º Bends
roughness
Units
mm
mm
un
un
mm
Local Pressure Loss
K coef. Globe Valve
K coef. Bens
1,60
0,00002632
425692,68
Data
315
266
1
8
0,007
9
0,75
0,01388660
34,07
3,33
Local Pressure Loss
Bar
m
Bar
1,96
0,19
3,52
OPTION 02 From tapping point to power plant (315NB)
Entry Imput Data
Name
Flow
Gravity
Viscosity
Pipe Length
Density
Units
m3/hr
m/s2
m/s2
m
kg/m3
Friction Pressure Loss
Water Speed
m/s
K/D
Reynold Number
Friction Coef.
https://www.advdelphisys.com/m
m
Friction Pressure Loss
Bar
Total Pressure Loss
Data
l/s
88,89
320
9,81
0,000001
5700
995,6
Name
Nominal diameter
Pipe Internal Diameter
Globe Valves
90º Bends
roughness
Units
mm
mm
un
un
mm
Local Pressure Loss
K coef. Globe Valve
K coef. Bens
1,60
0,00002632
425692,68
Data
315
266
1
8
0,007
10
0,75
0,01388660
38,84
3,79
Local Pressure Loss
Bar
m
Bar
2,09
0,20
4,00
OPTION 01 From tapping point to power plant (355NB)
Entry Imput Data
Name
Flow
Gravity
Viscosity
Pipe Length
Density
Units
m3/hr
m/s2
m/s2
m
kg/m3
Friction Pressure Loss
Water Speed
m/s
K/D
Reynold Number
Friction Coef.
https://www.advdelphisys.com/m
m
Friction Pressure Loss
Bar
Total Pressure Loss
Data
l/s
88,89
320
9,81
0,000001
5000
995,6
Name
Nominal diameter
Pipe Internal Diameter
Globe Valves
90º Bends
roughness
Units
mm
mm
un
un
mm
Local Pressure Loss
K coef. Globe Valve
K coef. Bens
1,17
0,00002251
364097,28
Data
355
311
1
8
0,007
9
0,75
0,01421019
15,96
1,56
Local Pressure Loss
Bar
1,66
m
Bar
1,05
0,10
Option
OPTION 1
OPTION 2
OPTION 1
Pipe Lenght (m)
5000
5700
5000
Pressure At booster
(bar)
18
Water Flow
(m3/hr)
Elevation
(m)
320
Most
Elevation at
Tapping
unfavorable
Booster Pumps
point Elev.
(m)
266
241
192
238
202
266
241
Friction + Local Loss
(Bar)
From Booster
pumpstation to Tapping
point
5,71
1,62
5,71
Elevation losses (Bar)
From tapping point to
power plant
from Booster pump to
tapping point)
3,52
4,00
1,66
4,79
0,98
4,79
from tapping
point to power
plant)
2,45
3,52
2,45
Available pressure at
Power Plant( Bar)
1,54
7,89
3,40
Pipe (HDPE)
315NB (ID 266 mm SDR13.6, PE80, PN10)
315NB (ID 266 mm SDR13.6, PE80, PN10)
355NB (ID 311 mm SDR17, PE100, PN10)