Service Water PumpSizing Calculation for Service Water Pumps.A.
Calculation of Service Water Requirements :Sl. No.Description of
the ConsumersWater Requirement (US GPM)OperationPressure Drop in
the cooler (psi)Design Pressure of the Coolers (psig)Remark1CT # 20
Evaporative Coolers36ContinuousRef. Water Balance Diagram2CT # 41
Evaporative Coolers36ContinuousRef. Water Balance Diagram3CT # 42
Evaporative Coolers36ContinuousRef. Water Balance Diagram4HRSG # 41
Blowdown Tank4ContinuousRef. Water Balance Diagram5HRSG # 42
Blowdown Tank4ContinuousRef. Water Balance Diagram6Cooling Tower
Emergency Make-up374During EmergencyRef. Water Balance
Diagram7Service Water Fill to CW & ACW piping.0Before Starting
of the plant.Not considered, since the requirement is for filling
up the CW & ACW piping before starting of the Power Plant and
during this time there is no requirement of service water in the
plant..8Service Water for HP Atmospheric Drain Tank5During Starting
of the plant.9Hose Station 60IntermittentConsidering 3/4" hose ,
Terminal Pressure 100 psig and two (2) hoses will be operated at a
time.10Total555
B. Calculation of Service water requirement for condensing steam
during start-up in the HP Atmospheric Drain Tank for HP Steam.
1. Calculation of total HP & Seal Steam Pipe Weight
Sl. No. DescriptionPipe Size (NB, inch)Pipe thicness, SchTotal
length of Pipe, (ft)Pipe unit weight, lb/ftTotal weight of pipe ,
lbOD of pipe , inchCross-sectional Area of the Pipe, ft2Remarks1HP
Steam pipe8XS81.8343.393550.758.6250.41Ref: ISO - HP Steam2HP Steam
pipe4XS1.5014.9822.474.50.11Ref: ISO - HP Steam3HP Steam
pipe6XS80.4228.572297.506.6250.24Ref: ISO - HP Steam4HP Steam
pipe4XS2.5014.9837.454.50.11Ref: ISO - HP Steam5HP Steam
pipe21601.087.468.082.3750.03Ref: ISO - HP Steam6HP Steam
pipe6XS176.6728.575047.376.6250.24Ref: ISO - HP Steam7HP Steam
pipe4XS3.5814.9853.684.50.11Ref: ISO - HP Steam8HP Steam
pipe21601.087.468.082.3750.03Ref: ISO - HP Steam9Total
weight11025.391.2810Considering 30% margin, Total weight14333.0030%
margin is considered to take care of fittings and Seal Steam Piping
for which the Layout/ISO is not available2. Calculation of amount
of condensate formed during pipe warm-upSl. No.Total Weight of the
pipe, Wp (lb)Specific heat of piping material, s (Btu/lb 0 F)HP
Steam Pressure during warm-up, P (psig)HP Steam Pressure during
warm-up, P (psia)Saturation temperature of Steam, t (0 F)Enthalpy
of vaporisation of steam, hfg (Btu/lb)Ambient winter average dry
bulb temperature , ta (0 F)Warm-up time, N (min)Total condensate
during warm-up, C ,lb/hr =(60* Wp)*(t)*s/(hfg *N)Enthalpy of
vaporization of steam at 210 psig saturation pressure, hfg210
(Btu/lb)Enthalpy of vaporization of steam at 840 psig saturation
pressure, hfg840
(Btu/lb)Remarks114333.000.144480.422495.12466756.172945.001590.38833.7254678.6156Ref.
HRSG Start-up Curve, Steam Table. Warm-up time is assumed since the
decision is that no Start-up curve for Steam Turbine from Siemens
will be requested. 3. Calculation of radiation loss condensate
loadSl.no.Total Length of the Pipe, L (ft)External Area of the
pipe, A (ft2)Heat loss through pipe insulation , H (Btu/sq.ft.hr. 0
F)Enthalpy of vaporisation of steam, hfg (Btu/lb)Temperature
difference , t ( 0 F)The radiation loss condensate load, Cr ,
lb/hr= (L)*(A)* (t)*(H)/hw Consider 30% margin the radiation loss
condensate load (lb/hr)Total Condesate produce during warming -up
operation by convection and radiation, W ,lb/hr =
C+0.5Cr181.830.410.286756.17437.005.487921.500.110.286756.17437.000.0274380.420.240.286756.17437.003.181842.500.110.286756.17437.000.045651.080.030.286756.17437.000.00556176.670.240.286756.17437.006.990173.580.110.286756.17437.000.065481.080.030.286756.17437.000.00559Total15.8120.551600.6510Consider1601.004.
Calculation of the mass of the codensate while entering into the
Atmospheric HP Drain TankSl. NoTotal amount of condensate flash in
the Tank, lb/hr X= [W*(hf-hf1)]/(hg-hf1)Total Condensate Flow in
the Atmospheric HP Flash Tank, W (lb/hr)Saturation Temperasture of
condensate , 0 FEnthalpy of Satuation liquid, hf (Btu/lb)Pressure
inside the Atmospheric HP Flash Tank, psiaEnthalpy of steam at
Saturation Pressure 14 psia, hg(Btu/lb)Enthalpy of condensate at
Saturation Pressure 14 psia,
hf1(Btu/lb)1445.871601.00466448.3714.001149.567177.71
5. Calculation of Service water requirement for cooling HP drain
during star-up in the Atmosphric Drain TankSl No.Condensate flow,W
( lb/hr)Condensate Enthalpy, hc (Btu/lb)Service water temperature ,
ts (0 F)Service Water Enthalpy, hs(Btu/lb)Mixing Water Temerature ,
tm (0F)Mixing Water Enthalpy, hm(Btu/lb)Service Water Flow Ws
(lb/hr) = [W*(hc-hm)]/(hm-hs)Service water density, ds(lb/ft3)
Service Water Flow Ws (ft3/hr)Service Water Flow Ws
(gpm)Remarks11155.13177.7160.0028.0596140.00107.94981008.6862.3716.172.022Consider
25% margin2.52Margin is considered because service water shall also
be injected in the inlet manifold before the condensate enters into
the tank3Let us consider56. Selection of Service Water Pump's
ParametersSl. No.DescriptionUnitData1Total Service Water
requirement for complete PlantUS GPM5552Considering 10% margin to
take of wear & tear as per DBRUS GPM610.53Consider 2X50% Pumps,
the capacity of each pump.US GPM3054Selected capacity of each
PumpUS GPM3007. Calculation of Frictional Head (OLD)
SL. No.DescriptionPipe Size (NB, Inch)Pipe OD (inch)Pipe
Thickness (inch)Pipe ID (inch)Pipe Legth (ft)Friction Factor for
Pipe, fTPipe Line, "K"Gate Valve, K = 8*fTNRV, K=100fTGlobe Valve,
K=340fT900 Bend, K= 30fT450 Bends, K= 16fTTee , Line, K=20fTTee ,
Branch , K=60fTReducerExpanderK for Exit LossTotal "K"Flow,
USGPMFlow, ft3/secVelocity of flow, v (ft/sec)Head loss through the
piping and fittings, hf ,ft =[Kt *
v2/(2*g)]Nos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.K =d1/d2Nos.K
=d1/d21Main Service Water
Header66.6250.286.065500.000.01514.83910.1211.5005.120.4500.2420.300.910.8820.66401.6030.664018.84274.50.6123.052.722Main
Service Water
Header44.50.2374.026650.000.01732.93600.13601.7005.7860.5100.27230.3401.0201.3500.61302.7380.613037.023330.7428.3940.483Branch2.52.8750.2032.4695.000.0180.4370.000.14401.8006.1200.5400.28810.3011.0811.3500.61302.7380.61303.17360.0802.410.294Individual
pipe connected to evaporative
cooler11.3150.1790.9575.000.0231.4420.000.18402.3007.8200.6900.28800.3601.38111.5260.388031.8310.388113.97180.0408.0313.985Total57.47
Calculation of head loss through 6" pipe from TP to Service
Water Tank
SL.DescriptionUnitDataRemarks1Total length of pipeft15002Margin
considered for equivalent length of fitting%203Total length of pipe
considering 20% marginft18004Total flowgpm6005Head
lossft/100ft2.33Total Head Loss through piping and fitting
considering 20% marginft50.328Terminal Point Elevationft5909Plant
Elevation at Service water Tankft5936Difference in
Elevationft27Service Water Tank inlet nozzle height from ground
ft25AssumedTotal Static head from TP to Service water inlet nozzle
ft52Total head loss for friction and static heightft102.328Sp.
Gravity of waterlbm/ft362.341Total Pressure losspsig44Terminal
Point Pressurepsig85 -125Residual Pressurepsig76Pressure available
at Service Water Tank inlet32So the pipe size 6" is
acceptableStatic height at potable water TPft27Total head loss at
potable water TP due to friction and static heightft77Pressure loss
at Potable Water TPpsig33Pressure available at Potable Water
TPpsig43
8. Calculation of Pump Head
Sl. NoDescriptionUnitDataRemarks1Frictional head through piping
and fitting ft of water column57.47Ref cal2Considering 20% margin
ft of water column68.962Static Headft of water
column7.5Assumed.3TDH of the pumpft of water column76.464Selected
Pump TDHft of water column809. Selection of Service Water PumpsSL
No.DescriptionData1Nos. of Pumps2X50%2Capactity of each Pump, US
GPM3003TDH of the Pump8010.0 Selection of the KW rating of the
Service Water Pump MotorSl. NoDescriptionUnitData1Pump CapacityUS
GPM3002Pump Headft of WC803Sp.gravity of water14Efficiency of
pump%755Motor efficiency%906Pump BHPHP8.677Considering 15% margin,
Pump shaft input powerHP9.979Selected Pump input powerHP10.08Motor
input powerHP11.19Selected Motor input PowerHP15Flow through
pipeRecommended VelocityCalculated Pipe ID, ftCalculated Pipe ID,
inchSelected PipeOD, inchSelected Pipe Thicness, inchSelected Pipe
ID, inchActual Velocity, ft/secWhether Actual Velocity
"acceptable"Selected Pipe Size , NB, inch & Pipe
ScheduleRemarksSL No. DescriptionUSGPMft3/secm/secft/sec1Service
Water Tank Filling
Line600.0001.3372.5008.2020.4565.4666.6250.286.0656.663Acceptable6inch,
Sch : Std2Individual Header to Pump
Suction300.0000.6681.8005.9060.3804.5556.6250.286.0653.332Acceptable6inch,
Sch : Std3Individual Header to Pump
Discharge3000.6683.009.8430.2943.5294.50.2374.0267.561Acceptable4inch,
Sch : Std4Common discharge
header6001.3373.009.8430.4164.9906.6250.286.0656.663Acceptable6inch,
Sch : Std5Header for HP Atmospheric Head Tank and service water
hose650.1453.009.8430.1371.6422.3750.2181.9397.062Acceptable2inch,
Sch : 806HP Head
Tank50.0113.009.8430.0380.4561.3150.1790.9572.230Acceptable1inch,
Sch : 807Common Header for combined Cycle , Simple Cycle Plant and
Cooling Tower Plant
Area6001.3373.009.8430.4164.9906.6250.286.0656.663Acceptable6inch,
Sch : Std8Header to Cooling Tower
Area4841.0783.009.8430.3734.4826.6250.286.0655.375Acceptable6inch,
Sch : Std9Cooling Tower Emergency
Make-up3740.8333.009.8430.3283.9404.50.2374.0269.426Acceptable4inch,
Sch : Std10Header to Simple and Combined Cycle
Plant193.60.4313.009.8430.2362.8353.50.2163.0688.402Acceptable2.5
inch, Sch : Std11Combined Cycle Plant #
411100.2453.009.8430.1782.1372.8750.2032.4697.371Acceptable3inch,
Sch : Std12Service Water to Blow down Tank #
4140.0093.009.8430.0340.4071.90.2001.5000.726Acceptable1.5 inch,
Sch : 8013Header for Evaporative Cooler for Module B of unit #
41180.0403.009.8430.0720.8641.3150.1790.9578.029Acceptable1.0 inch,
Sch : 8014Header for Combined Cycle Plant # 42 & Simple Cycle
Plant #
20149.60.3333.009.8430.2082.4923.5000.223.0686.492Acceptable3inch,
Sch : Std15Blow down header from Simple
Cycle110.0251.003.2810.101.1702.3750.2181.9391.195Acceptable2 inch,
Sch : 8016Blow down header from Simple Cycle # 20 and combined
Cycle # 41220.0491.003.2810.141.6552.3750.2181.9392.390Acceptable2
inch, Sch : 8013Blow down header from Simple Cycle # 20 and
combined Cycle # 41 &
42330.0741.003.2810.172.0273.5000.2163.0681.432Acceptable3inch, Sch
: 4014Recirculation
line1840.4103.009.8430.232.7633.5000.2163.0687.985Acceptable3inch,
Sch : 4015Outlet of HP Atmospheric Drain
Tank8.050.0181.003.2810.081.0012.8750.2032.4690.539Acceptable2.5
inch, Sch : 40
7. Calculation of Frictional Head (Revised Design Condition)
SL. No.DescriptionPipe Size (NB, Inch)Pipe OD (inch)Pipe
Thickness (inch)Pipe ID (inch)Pipe Legth (ft)Friction Factor for
Pipe, fTPipe Line, "K"Gate Valve, K = 8*fTNRV, K=100fTGlobe Valve,
K=340fTButterfly Valve, K= 45 fT900 Bend, K= 30fT450 Bends, K=
16fTTee , Line, K=20fTTee , Branch , K=60fTReducerExpanderK for
flow elementK for Exit LossTotal "K"Flow, USGPMFlow,
ft3/secVelocity of flow, v (ft/sec)Head loss through the piping and
fittings, hf ,ft =[Kt *
v2/(2*g)]Nos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.K =d1/d2Nos.K
=d1/d21Individual Pump Discharge
Pump44.50.2374.02620.000.0171.01300.13611.7005.7810.76520.5100.27210.34001.0200.8820.66411.6030.6640.00006.443000.6687.565.722Common
Service Water Discharge
Header66.6250.286.065370.000.01510.98100.1201.5005.100.67510.4500.2410.30000.9026.3100.320076.7670.32031.217042.956001.3376.6629.613Header
in STG
Building22.3750.2181.93980.000.0199.4070.000.15201.9006.4600.85500.5700.30410.38001.1413.9030.494076.7670.3200.000013.69650.1457.0610.604Individual
pipe connected to HP Atmospheric Drain
Tank11.3150.1790.95715.000.0234.3260.000.18402.3007.8201.03540.6900.36800.46001.3803.9030.49409.5940.4940.00007.0950.0112.230.555Common
Header for combined Cycle , Simple Cycle Plant and Cooling Tower
Plant
Area66.6250.286.065150.000.0154.4520.000.1201.5005.100.67540.4500.2410.3000.900.8820.66401.6030.6640.00006.556001.3376.664.526Common
Header for CT
make-up66.6250.286.065530.000.01515.7300.000.1201.5005.100.67520.4500.2410.3000.910.8820.66401.6030.6640.000020.41411.40.9174.576.617Header
to CT
make-up44.50.2374.02680.000.0174.0540.000.13601.7005.7810.76540.5100.27210.3401.0200.3810.76200.5190.76231.21706.43411.40.91710.3710.748Common
Header for combined Cycle & Simple Cycle Plant
Area33.50.2163.068100.000.0187.0400.000.14401.8006.1200.8120.5400.28810.3601.0813.4790.50608.4140.5060.00009.63188.60.4208.1910.029Header
for Combined Cycle Plant
#4133.50.2163.068260.000.01818.3050.000.14401.8006.1200.8140.5400.28800.3611.0811.1520.63200.5190.7620.000022.04105.60.2354.587.1910Header
to Evaporative Cooler #
4122.3750.2181.93910.000.0191.1760.000.15201.9006.4600.85540.5700.30400.3811.1413.9030.49409.5940.4940.00005.0939.60.0884.301.4611Header
to Evaporative Cooler B #
4111.3150.1790.95710.000.0232.8841.000.18402.3017.8201.03540.6900.36800.4611.3803.9030.49409.5940.4940.000116.0319.80.0448.8319.4112Header
for CTG # 42 &
2033.50.2163.068100.000.0187.0400.000.14401.8006.1200.8120.5400.28810.3601.0801.1520.63202.2490.6320.00008.481490.3326.475.5113Header
for CTG #
2033.50.2163.068520.000.01836.6100.000.14401.8006.1200.8140.5400.28800.3611.0811.1520.63202.2490.6320.000040.34105.60.2354.5813.1614Header
for CTG #
2022.3750.2181.93910.000.0191.1760.000.15201.9006.4600.85540.5700.30400.3811.1413.9030.49409.5940.4940.00005.0939.60.0884.301.4615Header
to Evaporative Cooler B #
2011.3150.1790.95710.000.0232.8841.000.18402.3017.8201.03540.6900.36800.4611.3803.9030.49409.5940.4940.000116.0319.80.0448.8319.4116Pump
Minimum flow recircualtion
line33.50.2163.068158.000.01811.1241.000.14401.8006.1200.8160.5400.28810.3611.0813.4790.50608.4140.5060.000117.951840.4107.9917.7717Common
header for recirculation
line66.6250.286.065100.000.0152.9680.000.1201.5005.100.67540.4500.2410.3000.900.0001.00000.8023.1280.00005.076001.3376.663.4918Pipe
Line from City Water TP to Service Water Tank
inlet66.6250.286.0651500.000.01544.5182.000.1221.5005.110.675160.4540.2420.3010.910.8820.66400.9466.33831.217158.426001.3376.6640.27
Calculation of "K" factor for OrificeSl.No.Ratio of Orifice
Diameter to Pipe Diameter "" Flow Coefficient "C"Orifice "K" =
(1-^2)/(C^2*^4)Remarks10.50.6231.22 is assumed as 0.5 and flow is
turbulent
Calculation of Pressure drop through 1 inch 100 mesh Y
Strainer
Sl. No.Description Unit DataRemarks1Pressure droppsi1.56From
Manufacturer's Catalog2Density of Waterlbm/ft362.0585From Steam
Table at 95 0 F3Pressure dropft of WC3.62
Calculation of Pump TDH at Design Condition
Sl. NoDescriptionUnitData1Friction Loss from Pump Discharge upto
Evaporative Cooler Module RH # 20ft of WC89.402Considering 20%
margin, Friction lossft of WC96.553Static Headft of WC7.504TDH ft
of WC104.055TDH (Selected)ft of WC110.00
Calculation of Control Valve Parameters
A. Control Valve : TCV-43150-01 : Service Water Supply Line to
HP Atmospheric Drain Tank
Sl. NoDescriptionUnitData 5 gpmMinimum Flow 0 gpmMaximum Flow 10
gpm1Friction Loss from Pump Discharge upto Upstream of Control
valve of HP Atmospheric Drain Tankft of
WC46.4845.9348.122Considering 20% margin, Friction lossft of
WC55.7755.1157.743Static Head Consideredft of WC7.507.507.504Total
Head loss at upstream control valveft of WC63.2762.6165.245Pressure
Head Available at upstream of control Valveft of
WC46.7347.3944.766Density of Water at 950
Flbm/ft362.058562.058562.05857Pressure available at upstream of
control Valvepsig20.1420.4219.298Consider velocity through the
sparger pipeft/sec50.0050.0050.009Velocity headft of
WC38.8238.8238.8210Pressure required at downstream of Control
Valvepsig16.7316.7316.73
Selection of Control Valve : TCV-43150-01 : Service Water Supply
Line to HP Atmospheric Drain Tank
Sl.NoDescriptionUnitDataFlow 0 gpmFlow 10 gpm1Flow
rategpm5.000.00102Inlet Pressurepsig20.1420.4219.293Oulet
Pressurepsig16.7316.7316.73
B. Control Valve LCV 43601-01 at Tank Outlet
1Total condensate flow into the tanklb/hr1155.132Temperature of
condensate and water mixture0F140.003Density of Water at 140 0F
lbm/ft361.37574Volume flow rate of condensateft3/hr18.825Volume
flow rate of condensategpm2.356Taking 30% margin Volume flow rate
of condensategpm3.057Total flow of water and condensategpm8.05
Calculation of Velocity through the out let pipe of HP
Atmospheric Drain Tank
SL.No.% of Pipe filled with waterValue of factor
"n"Cross-sectional area of Pipe, A (ft2)Perimeter of Pipe, P (ft)
considering half filled of waterHydraulic Radius, R (ft) R for
circular pipe = (Cross-sectional Area/Wetted Perimeter) =A/P
=(ID/4)Slope, S (Dimension Less) 1:48Velocity of Flow (ft/Sec),
V=(1.0/n)*(R^(2/3)*(S^1/2)Velocity head, ft of WCStatic Height, ft
(assumed)Total head avaiable at upstream of valve, ft WCDensity of
Water at 140 0F, lbm/ft3Total head avaiable at upstream of valve,
psig1500.0150.0170.3230.0510.0211.3310.037.0007.0361.37573.00
Selection of Control Valve : LCV-43601-01 : Out let of HP
Atmospheric Drain Tank
Sl.NoDescriptionUnitDataminimum flow 0 gpmmaximum flow1Flow
rategpm8.050.00152Inlet Pressurepsig3.003.0033Oulet
Pressurepsig0.000.000
C. Control Valve LCV-00151-01 at Cooling Tower Emergency Make
up.
Sl. NoDescriptionUnitDataMinimum Flow 0 gpmMaximum Flow 569*1.1=
625.91Friction Loss from Pump Discharge upto Upstream of Control
valve of HP Cooling Tower Emergency Make-upft of
WC57.2039.8480.012Considering 20% margin, Friction lossft of
WC68.6447.8196.013Static Head Consideredft of WC7.507.507.504Total
Head loss at upstream control valveft of
WC76.1455.31103.515Pressure Head Available at upstream of control
Valveft of WC33.8654.696.496Density of Water at 950
Flbm/ft362.058562.058562.05857Pressure available at upstream of
control Valvepsig14.5923.572.79
Selection of Control Valve : LCV-0051-01 : At Cooling Tower
Emergency Make-up
Sl.NoDescriptionUnitDataMinimum Flow 0 gpmMaximum Flow
625.91Flow rategpm411.400.00625.92Inlet
Pressurepsig14.5923.572.793Oulet Pressurepsig0.000.000.00
Selection of Control Valve : FCV-001114-02 : At Service Water
Mininum Flow Recirculation Line
Sl. NoDescriptionUnitData, Flow , 184 gpm maxflow , minimum 0
gpmflow operating 54.9 gpm1Friction Loss from Pump Discharge upto
Upstream of Control valve of minimum flow recirculation lineft of
WC26.989.2110.792Considering 20% margin, Friction lossft of
WC32.3811.0512.953Static Head Consideredft of
WC20.0020.0020.004Total Head loss at upstream control valveft of
WC52.3831.0532.955Pressure Head Available at upstream of control
Valveft of WC57.6278.9577.056Density of Water at 950
Flbm/ft362.058562.058562.05857Pressure available at upstream of
control Valvepsig24.8334.0233.20
Selection of Control Valve : FCV-001114-02 : At Service Water
Mininum Flow Recirculation Line
Sl.NoDescriptionUnitData Max FlowMinimum FlowOperating Flow1Flow
rategpm184.000.0054.902Inlet Pressurepsig24.8334.0233.203Oulet
Pressurepsig0.000.000.00
Selection of Motor operated Valve : MOV-00103-0 : At Service
Water Tank inlet
Sl. NoDescriptionUnitData1Friction Loss from Pump Discharge upto
Upstream of Control valve of minimum flow recirculation lineft of
WC40.272Considering 20% margin, Friction lossft of WC48.333Terminal
Point Elevationft59094Plant Elevation at Service water
Tankft59365Difference in Elevationft276Service Water Tank inlet
nozzle height from ground ft257Total Static head from TP to Service
water inlet nozzle ft52Total head loss for friction and static
heightft100.33Sp. Gravity of waterlbm/ft362.341Total Pressure
losspsig43Terminal Point Pressurepsig85 -125Residual
Pressurepsig76Pressure available at Service Water Tank inlet33So
the pipe size 6" is acceptableStatic height at potable water
TPft27Total head loss at potable water TP due to friction and
static heightft75Pressure loss at Potable Water TPpsig33Pressure
available at Potable Water TPpsig43
DM Water PumpSizing Calculation for DM Water Transfer PumpsA.
Calculation of DM Water Requirements :
Sl. No.Description of the ConsumersWater Requirement (US
GPM)OperationPressure Drop in the cooler (psi)Design Pressure of
the Coolers (psig)Remark1Make-up to condenser vacuum
pumps10Intermittent (During initial startRef. Unique System Vendor
drawing no. 10-1095-PFDS and the requirement of Seal Water is 18
GPM per Pump. However , as advised by SD& BKM dated 03.11.13
the requirement is revised as 10 GPM for two (2) Pumps.2Power Cycle
Normal Make-up (Condenser Normal Make-up)10ContinuousRef. Water
Balance Diagram3Power Cycle Emergency Make-up (Condenser Emergency
Make-up)260IntermittentRef. Mom. January 23,20134Water Supply to
Auxilaiary Skid for CTG Wash Water System0Intermittent 65Ref : GE
drawing no. 7246329-571262. The wash water requirement is 4-5 GPM
for On-line & 5-8 GPM for Off-line Wash. However , However , as
advised by SD& BKM dated 03.11.13 the requirement is revised as
0 GPM.5Water Supply to Sprint for CTG # 4141Continuous6Water Supply
to Sprint for CTG # 4241Continuous7Water Supply to Sprint for CTG #
2041Continuous8Total Continuos requirement1339Total Intermittent
requirement270
8Total403(1) Calculation of Pump Capacity Sl
No.DescriptionUnitData1Total Service Water requirementUS
GPM4032Cconsidering 10% marginUS GPM443.33Consider 3X50% Pumps, the
capacity of each PumpUS GPM221.654Let us selected the capacity of
each pumpUS GPM2207. Calculation of Frictional Head considering
emergency make -up (Alternative -1)
SL. No.DescriptionPipe Size (NB, Inch)Pipe OD (inch)Pipe
Thickness (inch)Pipe ID (inch)Pipe Legth (ft)Friction Factor for
Pipe, fTPipe Line, "K"Butterfly Valve, K = 45*fTNRV, K=100fTGlobe
Valve, K=340fT900 Bend, K= 30fT450 Bends, K= 16fTTee , Line,
K=20fTTee , Branch , K=60fTReducerExpanderK for Exit LossFlow
Meter,KTotal "K"Flow, USGPMFlow, ft3/secVelocity of flow, v
(ft/sec)Head loss through the piping and fittings, hf ,ft =[Kt *
v2/(2*g)]Nos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.K =d1/d2Nos.K
=d1/d21Individual
header44.50.2374.02610.000.0170.50710.76511.7005.7820.5100.27200.3401.0200.8820.66411.6030.664005.601980.4414.992.162Main
Header66.6250.286.065550.000.01516.32320.1201.5005.140.4500.2420.310.910.8820.66401.6030.66403050.753960.8824.4015.243Header
to STG
building44.50.2374.02675.000.0173.8002.000.76501.7005.7820.5100.27210.3401.0200.8820.66401.6030.664006.692800.6247.065.174Header
to codenser emergency make
up44.50.2374.02620.000.0171.0133.000.13601.7005.7820.5100.27220.3401.0200.8820.66401.6030.664104.122600.5796.552.755Total
Head loss25.328. Calculation of Frictional Head considering sprint
for unit #20 (Alternative -2)
SL. No.DescriptionPipe Size (NB, Inch)Pipe OD (inch)Pipe
Thickness (inch)Pipe ID (inch)Pipe Legth (ft)Friction Factor for
Pipe, fTPipe Line, "K"Butterfly Valve, K = 45*fTNRV, K=100fTGlobe
Valve, K=340fT900 Bend, K= 30fT450 Bends, K= 16fTTee , Line,
K=20fTTee , Branch , K=60fTReducerExpanderK for Exit LossFlow
Meter,KTotal "K"Flow, USGPMFlow, ft3/secVelocity of flow, v
(ft/sec)Head loss through the piping and fittings, hf ,ft =[Kt *
v2/(2*g)]Nos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.K =d1/d2Nos.K
=d1/d21Individual
header44.50.2374.02610.000.0170.50710.76511.7005.7820.5100.27200.3401.0200.8820.66411.6030.664005.601980.4414.992.162Main
Header66.6250.286.065550.000.01516.32320.1201.5005.140.4500.2420.310.910.8820.66401.6030.66403050.753960.8824.4015.243Header
to Sprint for Unit # 41,42 &
2033.50.2163.068200.000.01814.08100.14401.8006.1220.5400.28810.3601.0813.4790.50608.4140.5060019.001230.2745.348.415Header
to Sprint for Unit # ,42 &
2033.50.2163.0681000.0187.04000.14401.8006.1200.5400.28810.3601.0811.1520.63202.2490.632008.55820.1833.561.686Header
to Sprint for Unit # ,
2022.3750.2181.939350.000.01941.15520.15201.9016.4640.5700.30400.3801.1401.1520.63202.2490.63203080.20410.0914.4524.717Total52.209.
Selection of Pump HeadSl. NoDescription Unit Data1Frictional head
(Alternative - 2)ft of W.C.52.202Considering 20 % margin , the
frictional headft of W.C.62.643Terminal Pressure at
Sprintpsig54Density of water at 600 Flbm/ft362.37075Terminal
Pressure at Sprintft of W.C.11.546Static Head (considered)ft of
W.C.7.57Total Headft of W.C.81.698Let us consider TDH ft of
W.C.909Density of water at 800 Flbm/ft362.22039Let us consider TDH
psig38.89Let us consider TDH psig4010 Selection of DM Water
PumpsSl. NoDescriptionData1No. of Pumps3X50%2Capacity of each Pump,
US GPM2203TDH of the Pump, ft of W.C.9010.0 Selection of the KW
rating of the Pump Motor
Sl. NoDescriptionUnitData1Pump CapacityUS GPM2202Pump Headft of
WC903Sp.gravity of water14Efficiency of pump%755Motor
efficiency%906Pump BHPHP7.158Considering 15% margin, Pump shaft
input powerHP8.29Selected Pump input powerHP9.010Motor input
powerHP10.011Selected Motor input PowerHP10Flow through
pipeRecommended VelocityCalculated Pipe ID, ftCalculated Pipe ID,
inchSelected PipeOD, inchSelected Pipe Thicness, inchSelected Pipe
ID, inchActual Velocity, ft/secWhether Actual Velocity
"acceptable"Selected Pipe Size , NB, inch & Pipe
ScheduleRemarksSL No. DescriptionUSGPMft3/secm/secft/sec1Pump
Suction Common
Header440.0000.9801.8005.9060.4605.5176.6250.286.0654.886Acceptable6inch,
Sch : Std2Individual Header to Pump
Suction220.0000.4901.8005.9060.3253.9014.50.2374.0265.545Acceptable4
inch, Sch : Std3Individual Header to Pump
Discharge220.0000.4903.0009.8430.2523.0224.5000.2374.0265.545Acceptable4
inch, Sch : Std4Pump Discharge Common
Header440.0000.9803.0009.8430.3564.2736.6250.286.0654.886Acceptable6inch,
Sch : Std5Pump Recirculation
Header87.000.1943.0009.8430.1581.9002.8750.2032.4695.830Acceptable2.5
inch, Sch : 40It is assumed that worst case is one pump operaties
with continuous demand.6Header to STG Buiding for condenser
normal/emergency make-up, ccw head tank make-up, condenser vacuum
pump make-up & initial sealing of
CEP2900.6463.009.8430.2893.4694.50.2374.0267.309Acceptable4 inch,
Sch : Std10.0 USGPM is considered for CCW Head Tank Make-up and
initial sealing of CEP.7Condenser emergency make-up header
2600.5793.009.8430.2743.2854.50.2374.0266.553Acceptable4nch, Sch :
Std8Condenser normal
make-up100.0223.009.8430.0540.6442.3750.2181.9391.087Acceptable2nch,
Sch : 809Make-up to condenser vacuum
pump360.0803.009.8430.1021.2222.3750.2181.9393.911Acceptable2nch,
Sch : 8010Header for Combined cycle Plants # 41, 42 and Simple
Cycle
Plant1230.2743.009.8430.1882.2593.50.2163.0685.338Acceptable3nch,
Sch : 4011Individual header to combined cycle
plant410.0913.009.8430.1091.3042.3750.2181.9394.455Acceptable2nch,
Sch : 8012Header for combined cycle unit # 42 & Simple Cycle
Plant820.1833.009.8430.1541.8452.8750.2032.4695.495Acceptable2.5
inch, Sch : 4013DM water return Header for unit # 41, 42 &
20330.0743.009.8430.0981.1702.3750.2181.9393.585Acceptable2nch, Sch
: 8011. Calculation of Frictional Head (Revised Design
Condition)
SL. No.DescriptionPipe Size (NB, Inch)Pipe OD (inch)Pipe
Thickness (inch)Pipe ID (inch)Pipe Legth (ft)Friction Factor for
Pipe, fTPipe Line, "K"Gate Valve, K = 8*fTNRV, K=100fTGlobe Valve,
K=340fTButterfly Valve, K= 45 fT900 Bend, K= 30fT450 Bends, K=
16fTTee , Line, K=20fTTee , Branch , K=60fTReducerExpanderK for
flow elementK for Exit LossTotal "K"Flow, USGPMFlow,
ft3/secVelocity of flow, v (ft/sec)Head loss through the piping and
fittings, hf ,ft =[Kt *
v2/(2*g)]Nos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.K =d1/d2Nos.K
=d1/d21Individual Pump Discharge
Pump44.50.2374.02610.000.0170.50700.13611.7005.7810.76520.5100.27210.34001.0200.8820.66411.6030.6640.00005.942200.4905.542.832Common
Discharge
Header66.6250.286.065160.000.0154.74900.1201.5005.110.67540.4500.2420.30010.900.0001.00000.0001.00031.217039.944400.9804.8914.813Header
to STG
Building66.6250.286.065360.000.01510.68400.1201.5005.100.67540.4500.2410.30000.910.8820.66401.6030.6640.000013.672800.6243.112.053Header
in STG
Building44.50.2374.02620.000.0171.0130.000.13601.7005.7800.76540.5100.27250.34001.0214.3700.482010.9090.4820.00009.122800.6247.067.054Condenser
normal make-up
header22.3750.2181.93910.000.0191.1761.000.15201.9006.4600.85540.5700.30410.38001.1404.3700.482010.9090.4820.00003.99100.0221.090.075Condenser
emergency make-up
header44.50.2374.02610.000.0170.5070.000.13601.7015.7800.76540.5100.27210.34011.0204.3700.48200.4820.00009.692600.5796.556.465Common
Header for combined Cycle , Simple Cycle Plant
33.50.2163.068200.000.01814.0810.000.14401.8006.1200.8160.5420.28810.3611.0813.4790.506010.9090.4820.000019.341390.3106.0310.936Common
Header for Combined Cycle Plants # 41 &
4233.50.2163.06870.000.0184.9280.000.14401.8006.1200.8120.5400.28810.3611.0800.3810.76200.4820.00007.45980.2184.252.097Common
Header for Sprint and Water Wash System #
4122.3750.2181.939270.000.01931.7481.000.15201.9006.4600.85540.5700.30410.3811.1411.1520.63202.2490.6320.000035.70410.0914.4511.008Header
for Sprint and Water Wash System #
4222.3750.2181.939180.000.01921.1661.000.15201.9006.4600.85540.5700.30410.3801.1411.1520.63202.2490.6320.000023.98410.0914.457.399Header
for Sprint and Water Wash System #
2022.3750.2181.939460.000.01954.0901.000.15201.9006.4600.85560.5700.30410.3801.1411.1520.63202.2490.63231.217058.04410.0914.4517.8910Minimum
Flow recirculation
line2.52.8750.2032.46990.000.0187.8741.000.14401.8006.1200.8120.5420.28800.3611.0819.3000.407025.2160.4070.000010.7587.000.1945.835.6811Return
sprint header #
2011.3150.1790.95710.000.0232.8840.000.18402.3007.8201.03520.6900.36810.4601.3803.9030.49419.5940.4940.000014.32110.0254.915.3512Return
sprint header to Storage Tank from unit #
2022.3750.2181.939460.000.01954.0900.000.15201.9006.4600.85560.5700.30410.3801.1400.3080.78500.3840.7850.000057.89110.0251.201.2813Return
sprint header to Storage Tank from unit # 20, 41 &
4222.3750.2181.939280.000.01932.9241.000.15201.9006.4600.85540.5710.30410.3801.1400.49409.5940.4940.000137.04330.0743.597.39
Determination of Pump HeadSl. NoDescription Unit Data1Frictional
head ft of W.C.46.452Considering 20 % margin , the frictional
headft of W.C.55.743Terminal Pressure at Sprintpsig54Density of
water at 800 Flbm/ft362.235Terminal Pressure at Sprintft of
W.C.11.576Static Head (considered)ft of W.C.7.57Total Headft of
W.C.74.818Let us consider TDH ft of W.C.909Let us consider TDH
psig38.8910Let us consider TDH psig40
(A) Selection of Minimum Flow Recirculation Valve
FCV-00109-01
Sl. NoDescriptionUnitDataMinimum Flow 53.4Maximum Flow. 100
=1.2*871Friction Loss from Pump Discharge upto Upstream of Control
valve of minimum flow recirculation lineft of
WC23.3219.7825.13939365962Considering 20% margin, Friction lossft
of WC27.9823.7430.173Static Head Consideredft of WC7.507.57.54Total
Head loss at upstream control valveft of WC35.4831.2437.675Pressure
Head Available at upstream of control Valveft of
WC54.5258.7652.336Density of Water at 800
Flbm/ft362.220362.220362.22037Pressure available at upstream of
control Valvepsig23.5625.3922.61
Selection of Control Valve : FCV-00109-01 : Minimum Flow
Recirculation
Sl.NoDescriptionUnitData1Flow rategpm87.0053.401002Inlet
Pressurepsig23.5625.3922.613Oulet Pressurepsig0.000.000
(B) Selection of Control Valve LCV-43004-01 : Condenser Normal
Make-up Control Valve
Selection of Condenser Normal Make-up Control ValveValve :
LCV-43004-01
Sl. NoDescriptionUnitDataAt 0 flowat 13 GPM Flow (1.30% of
operating flow1Friction Loss from Pump Discharge upto Upstream of
Control valve of Condenser Normal Make-up Lineft of
WC26.8226.747589411126.87112981772Considering 20% margin, Friction
lossft of WC32.1832.1032.253Static Head Consideredft of
WC7.507.507.504Total Head loss at upstream control valveft of
WC39.6839.6039.755Pressure Head Available at upstream of control
Valveft of WC50.3250.4050.256Density of Water at 800
Flbm/ft362.220362.220362.22037Pressure available at upstream of
control Valvepsig21.7421.7821.71
Selection of Condenser Normal Make-up Control ValveValve :
LCV-43004-01
Sl.NoDescriptionUnitData1Flow rategpm10.000.00132Inlet
Pressurepsig21.7421.7821.713Oulet Pressurepsig0.000.000
(C) Selection Pressure Reducing Valve PRV-41004-01
Sl. NoDescriptionUnitDataFlow 11gpmFlow 49 gpm1Friction Loss
from Pump Discharge upto Upstream of PRV of Sprint # 41ft of
WC41.6631.45165086846.37234413932Considering 20% margin, Friction
lossft of WC49.9937.7455.653Static Head Consideredft of
WC7.507.507.504Total Head loss at upstream control valveft of
WC57.4945.2463.155Pressure Head Available at upstream of control
Valveft of WC32.5144.7626.856Density of Water at 800
Flbm/ft362.220362.220362.22037Pressure available at upstream of
control Valvepsig14.0519.3411.60
Selection Pressure Reducing Valve PRV-41004-01
Sl.NoDescriptionUnitData1Flow rategpm41.0011.00492Inlet
Pressurepsig14.0519.3411.603Oulet Pressurepsig2 to 52 to 52 to
5
(D) Selection Pressure Reducing Valve PRV-42004-01
Sl. NoDescriptionUnitData11 gpm49 gpm1Friction Loss from Pump
Discharge upto Upstream of PRV of Sprint # 42ft of
WC38.0531.191636237641.21288027472Considering 20% margin, Friction
lossft of WC45.6637.4349.463Static Head Consideredft of
WC7.507.504Total Head loss at upstream control valveft of
WC53.1644.9349.465Pressure Head Available at upstream of control
Valveft of WC36.8445.0740.546Density of Water at 800
Flbm/ft362.220362.220362.22037Pressure available at upstream of
control Valvepsig15.9219.4717.52
Selection Pressure Reducing Valve PRV-42004-01
Sl.NoDescriptionUnitData1Flow rategpm41.0011.00492Inlet
Pressurepsig15.9219.4717.523Oulet Pressurepsig2 to 52 to 52 to
5
(E) Selection Pressure Reducing Valve PRV-20004-01
Sl. NoDescriptionUnitData11 gpm49 gpm1Friction Loss from Pump
Discharge upto Upstream of PRV of Sprint # 20ft of
WC46.4529.85509861854.1132246042Considering 20% margin, Friction
lossft of WC55.7435.8364.943Static Head Consideredft of
WC7.507.507.504Total Head loss at upstream control valveft of
WC63.2443.3372.445Pressure Head Available at upstream of control
Valveft of WC26.7646.6717.566Density of Water at 800
Flbm/ft362.220362.220362.22037Pressure available at upstream of
control Valvepsig11.5620.177.59
Selection Pressure Reducing Valve PRV-20004-01
Sl.NoDescriptionUnitData1Flow rategpm41.0011.00492Inlet
Pressurepsig11.5620.177.593Oulet Pressurepsig2 to 52 to 52 to 5
Calculation of "K" factor for OrificeSl.No.Ratio of Orifice
Diameter to Pipe Diameter "" Flow Coefficient "C"Orifice "K" =
(1-^2)/(C^2*^4)Remarks10.50.6231.22 is assumed as 0.5 and flow is
turbulent
Calculation of Pressure drop through 1 inch 100 mesh Y
Strainer
Sl. No.Description Unit DataRemarks1Pressure droppsi1.56From
Manufacturer's Catalog2Density of Waterlbm/ft362.0585From Steam
Table at 95 0 F3Pressure dropft of WC3.62
Sewer Lifting Pump.Calculation of Sewer Pump Sizing :
A. Selection of Pump Capacity
SL. No.DescriptionUnitDataReference1As per Water Balance Diagram
, the total sewer water during peak summer operationUSGPM50Drawing
No. SRW-M-00-1003, Rev. B : Water Balance Diagram2Minimum Sewer
Pump discharge pipe size , NBinch4Wygen 2, Unit 43Flow through 4
inch steel pipe with head loss 0.179 ft per 100 ftUS GPM50Refer
Cameron Hydraulic Data.4No. of water cosumption points in the plant
in respect of Showers, WC, Urinal,LAV and SinkNos.145Maximum water
consumption per man per dayUS Gallon2506Considering all the toilets
are used simultaneously , the total water discharged from all the
consumption pointsUS GPM2.437 Capacity of PumpUS GPM508Taking 10%
margin, the capacity of the pumpUS GPM559Selected Capacity of the
PumpUS GPM6010Velocity of flow through pipeft/sec1.512. Calculation
of Frictional Head considering sprint for unit #20 (Alternative
-2)
SL. No.DescriptionPipe Size (NB, Inch)Pipe OD (inch)Pipe
Thickness (inch)Pipe ID (inch)Pipe Legth (ft)Friction Factor for
Pipe, fTPipe Line, "K"Butterfly Valve, K = 45*fTNRV, K=100fTGlobe
Valve, K=340fT900 Bend, K= 30fT450 Bends, K= 16fTTee , Line,
K=20fTTee , Branch , K=60fTReducerExpanderK for Exit LossFlow
Meter,KTotal "K"Flow, USGPMFlow, ft3/secVelocity of flow, v
(ft/sec)Head loss through the piping and fittings, hf ,ft =[Kt *
v2/(2*g)]RemarksNos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.K
=d1/d2Nos.K =d1/d21Individual
header44.50.2374.02610.000.0170.50710.76511.7005.7820.5100.27210.3401.0200.0001.00000.0001.000004.33540.1201.360.12It
is assumed that the Sewer Lift Pump will discharge in to WWC Mixing
Pit.2Main
Header44.50.2374.026550.000.01727.86900.13601.7005.7840.5100.27200.3401.0200.0001.00000.0001.0001030.91540.1201.360.893Total1.013.
Selection of Pump HeadSl. NoDescription Unit Data1Frictional head
ft of W.C.1.012Considering 20 % margin , the frictional headft of
W.C.1.223Static Head (considered)ft of W.C.104Total Headft of
W.C.11.225Let us consider TDH ft of W.C.20.00 Sewer Sump &
Pumps in Sewer Lift StationSL .NoDescriptionUnitData1Total nos of
Sewer PumpNo.2X100%2Capacity of each pumpUS GPM603Total Discharge
Headft of W.C.204TypeVertical SubmersibleCalculation of Minimum
Sump volume (Sewer Lift)
Sl. NoDescription Unit DataRemarks1Pumping Rate, QpUS
GPM60Calculated2Inflow Rate, QfUS GPM50.00Calculated3Volume , V =
(T*Qf)*(Qp-Qf)/QpUS gallon83.33The Hydraulic Design of Pump Sump
and Intakes : By M.J. Prosser4Time between the startNos/hour65Net
flow when not pumping, , QfUS GPM50.006Net flow when pumping, ,
(Qp-Qf)US GPM10.007Time taken to fill , t1 = V/QfMin1.678Time taken
to empty, t2 =V/(Qp-Qf)Min8.339Time for complete cycle , T =(t1+t2)
=(V*Qp)/[Qf*(Qp-Qf)]Mins1010Sump Volume considered, VUS
gallon8511Sump Volume considered, Vft311.3612Sump Volume selected,
Vft312Selection of Sump SizeSl. NoDescription Unit
DataRemark1Required Volume of the sumpft312Calculated2Sump Length
offeredinch36.625Flow Serve Offer3Sump Length consideredinch663Sump
Length consideredft5.50Flow Serve Offer4Sump Width
offeredinch65.375Flow Serve Offer for two pumpsSump Width
consideredinch785Sump Width consideredft6.506Sump depthft0.347Sump
depth required to accommodate the vertical pump onlyft1.76Flow
Serve Offer8Sump depth Required ft2.67Selected Sump SizeSl.
NoDescription Unit DataRemark1Lengthinch66As discussed with Mr.
Bijan , Mr. Arman & Banida on 05.21.20132Widthinch783Depth
(from bottom of Drain pipe)inch324Grade Elevationft-inch99.33As
confired by Mr. Armen. 99'-4"5C.L. Elevation of the Sewage
Pipeft92As confired by Mr. Armen6Pipe ODinch87Depth (From
Grade)inch122Calculation of Water Levels in the Sump
Sl. NoDescription Unit DataRemark1Pump capacityUSGPM602Low Level
Height from the bottom of the sumpinch7.75Flow Serve
Offer3Considering operation of pump between Mid Level and high
levelMins5Operation time is selected based on the advise of Banida
on 05/21/20134Height of the Mid level from low levelft1.125Height
of the Mid level from low level consideredinch136Height of High
Level from Mid Levelinch5.00Operation time is selected based on the
advise of Banida on 05/21/20137Height of High Level from drain pipe
BOP inch6.00Operation time is selected based on the advise of
Banida on 05/21/20139Total height of the sumpinch32.2110Total
height of the sump consideredinch32Total height of the sump
consideredft2.6711Volume between mid level and low
levelft340.1112Volume between mid level and low levelUS GPM300.02So
the sump sizing is O.K
Selection of Sump
Sl. NoDescription Unit DataRemark1Grade Elevationft99.672C.L.
Elevation of the Sewage Pipeft923Sump Depth from bottom of drain
pipeft2.67
Sump Pump HRSG Blowdown Sump Calculation of Permanently
Installed Blodown Pump Sizing :
A. Selection of Pump CapacitySL.
No.DescriptionUnitDataReference1As per Water Balance Diagram , the
total HRSG CBD/IBD blowdown during peak summer operationUS
GPM9Drawing No. SRW-M-00-1003, Rev. B : Water Balance
Diagram2Considering that the blowdown sump will have storage
minutes30As recommended by Mr. B.K.M3The storage capacity of
blowdown sumpUS Gallon2704Interval of blowdown sump pump
operationminutes15As recommended by Mr. B.K.M5Capacity of Blowdown
Sump PumpUS GPM186Taking 10% margin, the capacity of the pumpUS
GPM19.89Selected Capacity of the PumpUS GPM2510Actual operation of
pump to evacute the sumpminutes10.8Selection is o.k.
B. Selection of Pipe SizeSL.
No.DescriptionUnitDataReference1Total water flowUS GPM252Consider
minimum pipe size as inch23Velocity of flow ft/sec2.83Ref:
Camereron Hydraulic Data
2. Calculation of Frictional Head
SL. No.DescriptionPipe Size (NB, Inch)Pipe OD (inch)Pipe
Thickness (inch)Pipe ID (inch)Pipe Legth (ft)Friction Factor for
Pipe, fTPipe Line, "K"Butterfly Valve, K = 45*fTNRV, K=100fTGlobe
Valve, K=340fT900 Bend, K= 30fT450 Bends, K= 16fTTee , Line,
K=20fTTee , Branch , K=60fTReducerExpanderK for Exit LossFlow
Meter,KTotal "K"Flow, USGPMFlow, ft3/secVelocity of flow, v
(ft/sec)Head loss through the piping and fittings, hf ,ft =[Kt *
v2/(2*g)]RemarksNos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.K
=d1/d2Nos.K =d1/d21Individual
header22.3750.2181.93910.000.0191.17610.85511.9006.4620.5700.30410.3801.1400.0001.00000.0001.000005.45250.0562.720.62It
is assumed that the Blow down Pump will discharge into cooling
tower basin2Main
Header22.3750.2181.939900.000.01794.68800.13601.7005.7840.5100.27200.3401.0200.0001.00000.0001.0001097.73250.0562.7211.203Total11.823.
Selection of Pump HeadSl. NoDescription Unit DataRemarks1Frictional
head ft of W.C.11.822Considering 20 % margin , the frictional
headft of W.C.14.193Static Head (considered)ft of W.C.10REF.SPX
Clarfication. The head required at riser isolation valve end is
22.3 ft. However, the discharge of the pump shall be terminated to
cooling tower basin7Total Headft of W.C.24.198Let us consider TDH
ft of W.C.30.00
HRSG Blowdown Sump & Sump Pumps per unitSL
.NoDescriptionUnitData1Total nos of Blowdown sump pump per
unitNo.2X100%2Capacity of each pumpUS GPM253Total Discharge Headft
of W.C.30.004TypeVertical wet pit typeCalculation of Minimum Sump
volume (HRSG Blow down Area)
Sl. NoDescription Unit Data1Pumping Rate, QpUS GPM252Inflow
Rate, QfUS GPM9.003Volume , V = (T*Qf)*(Qp-Qf)/QpUS
gallon57.604Time between the startNos/hour65Net flow when not
pumping, , QfUS GPM9.006Net flow when pumping, , (Qp-Qf)US
GPM16.007Time taken to fill , t1 = V/QfMin6.408Time taken to empty,
t2 =V/(Qp-Qf)Min3.609Time for complete cycle , T =(t1+t2)
=(V*Qp)/[Qf*(Qp-Qf)]Mins1010Sump Volume considered, VUS
gallon6011Sump Volume considered, Vft38.0212Sump Volume selected,
Vft310Selection of Sump SizeSl. NoDescription Unit
DataRemark1Required Volume of the sumpft310Calculated2Sump Length
offeredinch62Flow Serve Offer3Sump Length consideredinch724Sump
Length consideredft6.005Sump Width offeredinch42Flow Serve
Offer6Sump Width consideredinch487Sump Width consideredft48Sump
depthft0.429Sump depth required to accommodate the vertical pump
onlyft1.33Flow Serve Offer10Sump depth consideredft3.5Selected Sump
SizeSl. NoDescription Unit DataRemark1Lengthinch72As discussed with
Mr. Bijan , Mr. Arman & Banida on
05.21.20132Widthinch483Depthinch36Calculation of Water Levels in
the SumpSl. NoDescription Unit DataRemark1Pump capacityUSGPM252Low
Level Height from the bottom of the sumpinch16Flow Serve
Offer3Considering operation of pump between Mid Level and high
levelMins5Operation time is discussed with Banida4Height of the Mid
level from low levelft0.705Height of the Mid level from low level
consideredinch8.366Height of High Level from Mid
Levelinch4.187Height of High Level from Grade Levelinch6.009Total
height of the sumpinch3510Total height of the sump
consideredinch3610Volume between low level and mid
levelft316.7111Volume between low level and mid levelUS
Gallon125.01Sump Size is O.K
Turbine Area Sump PumpCalculation of Permanently Installed Sump
Pump Sizing for Turbine Area Sump.:
Assumption :1. The lekage water from Condensate discharge piping
& CW supply and return piping shall be collected in the sump
near Turbine area.2. For calculation of sump pump sizing continuous
leakage from Condensate Pump discharge is assumed as a worst
senario because of higher pressure compare to that of Circulating
Water Pumps.
A. Selection of Pump CapacitySL.
No.DescriptionUnitDataReferenceRemarks1Condensate Pump discharge
headft of W.C.610Refer Condensate Pump Specification2Velocity of
flow , v = (2*g*H)^0.5ft/sec198.20As recommended by Mr. B.K.M3Hole
size inch0.4Assumed4Total flow through the hole, Qft3/sec0.17As
recommended by Mr. B.K.M5Total flow through the hole, QUS
GPM77.636Taking 10% margin, the capacity of the pumpUS
GPM85.397Selected Capacity of the PumpUS GPM100
B. Selection of Pipe SizeSL.
No.DescriptionUnitDataReference1Total water flowUS GPM1002Consider
minimum pipe size as inch33Velocity of flow ft/sec4.34Ref:
Camereron Hydraulic Data
2. Calculation of Frictional Head
SL. No.DescriptionPipe Size (NB, Inch)Pipe OD (inch)Pipe
Thickness (inch)Pipe ID (inch)Pipe Legth (ft)Friction Factor for
Pipe, fTPipe Line, "K"Butterfly Valve, K = 45*fTNRV, K=100fTGlobe
Valve, K=340fT900 Bend, K= 30fT450 Bends, K= 16fTTee , Line,
K=20fTTee , Branch , K=60fTReducerExpanderK for Exit LossFlow
Meter,KTotal "K"Flow, USGPMFlow, ft3/secVelocity of flow, v
(ft/sec)Head loss through the piping and fittings, hf ,ft =[Kt *
v2/(2*g)]RemarksNos.KNos.KNos.KNos.KNos.KNos.KNos.KNos.K
=d1/d2Nos.K =d1/d21Individual
header33.50.2163.06810.000.0190.74310.85511.9006.4620.5700.30410.3801.1400.0001.00000.0001.000005.02900.2013.911.19It
is assumed that the Blow down Pump will discharge into cooling
tower basin2Main
Header33.50.2163.068450.000.01729.92200.13601.7005.7840.5100.27200.3401.0200.0001.00000.0001.0001032.96900.2013.917.813Total9.003.
Selection of Pump HeadSl. NoDescription Unit Data1Frictional head
ft of W.C.9.002Considering 20 % margin , the frictional headft of
W.C.10.803Static Head (considered)ft of W.C.127Total Headft of
W.C.22.808Let us consider TDH ft of W.C.30.00
Sump & Sump Pump at Turbine Area.SL
.NoDescriptionUnitData1Total nos of Turbine Area sump pump
No.2X100%2Capacity of each pumpUS GPM1003Total Discharge Headft of
W.C.30.004TypeVertical wet pit typeNote : The depth of sump is
considered as 10 ft based on the advice of Mr. S. Dutta
.Calculation of Minimum Sump volume (Turbine Area)
Sl. NoDescription Unit Data1Pumping Rate, QpUS GPM1002Inflow
Rate, QfUS GPM77.633Volume , V = (T*Qf)*(Qp-Qf)/QpUS
gallon173.654Time between the startNos/hour65Net flow when not
pumping, , QfUS GPM77.636Net flow when pumping, , (Qp-Qf)US
GPM22.377Time taken to fill , t1 = V/QfMin2.248Time taken to empty,
t2 =V/(Qp-Qf)Min7.769Time for complete cycle , T =(t1+t2)
=(V*Qp)/[Qf*(Qp-Qf)]Mins1010Sump Volume considered, VUS
gallon17411Sump Volume considered, Vft323.2612Sump Volume selected,
Vft330Selection of Sump SizeSl. NoDescription Unit
DataRemark1Required Volume of the sumpft330Calculated2Sump Length
offeredinch62Flow Serve Offer3Sump Length consideredinch624Sump
Length consideredft5.175Sump Width offeredinch42Flow Serve
Offer6Sump Width consideredinch485Sump Width consideredft4Flow
Serve Offer6Sump depthft1.457Sump depth required to accommodate the
vertical pump onlyft1.30Flow Serve Offer8Sump depth
consideredft3.5Selected Sump SizeSl. NoDescription Unit
DataRemark1Lengthinch62Asdiscussed with Mr. Bijan , Mr. Arman &
Banida on 05.21.20132Widthinch483Depthinch72Calculation of Water
Levels in the SumpSl. NoDescription Unit DataRemark1Pump
capacityUSGPM1002Low Level Height from the bottom of the
sumpinch16Flow Serve Offer3Considering operation of pump between
Mid Level and high levelMins5Operation time is selected based on
the advise of Banida on 05/21/20134Height of the Mid level from low
levelft3.235Height of the Mid level from low level
consideredinch396Height of High Level from Mid Levelinch12As
advised by Banida on 05/21/20137Height of High Level from Grade
Levelinch6As advised by Banida on 05/21/20138Total height of the
sumpinch739Total height of the sump consideredinch72As advised by
Banida on 05/21/201310Total Height of the sumpft611Total volume
between low level and mid levelft366.8412Total volume between low
level and mid levelUS Gallon500So the size of the sump is O.K
CT Aux. Building Sump PumpCalculation of Cooling Tower Aux.
Building Permanently Installed Sump Pump Sizing :
Assumption :1. The pump capacity is based on the total water
requirement for the operation of the safety shower .
A. Selection of Pump CapacitySL.
No.DescriptionUnitDataReference1Water discharge from the operation
of one safety showerUS GPM20Drawing No. SRW-M-00-1003, Rev. B :
Water Balance Diagram2The duration of operation of safety
showerminutes15As recommended by Mr. B.K.M3Total water discharge
from the operation of one safety shower for 15 minutesUS
Gallon300As recommended by Mr. B.K.M4Interval of blowdown sump pump
operationminutes10As recommended by Mr. B.K.M5Assuming that the
total water will be pumped out by Pump within 10 minutes, the
capacity of the pumpUS GPM30As recommended by Mr. B.K.M9Selected
Capacity of the PumpUS GPM30
B. Selection of Pipe SizeSL.
No.DescriptionUnitDataReference1Total water flowUS GPM302Consider
minimum pipe size as inch23Velocity of flow ft/sec3.26Ref:
Camereron Hydraulic Data
C Selection of Pump HeadThe pump will discharge into the cooling
tower basin which is about 100 ft from the Cooling Tower Aux.
Building Sump and the discharge pressure of the pump is considered
as 20 ft.
Cooling Tower Aux. Building Sump & Sump Pumps
SL .NoDescriptionUnitData1Total nos of sump pumps at cooling
tower Aux. Building No.2X100%2Capacity of each pumpUS GPM303Total
Discharge Headft of W.C.20.004TypeVertical Wet pit type
.Calculation of Minimum Sump volume (Cooling Tower Aux. Building
Area)
Sl. NoDescription Unit Data1Pumping Rate, QpUS GPM302Inflow
Rate, QfUS GPM20.003Volume , V = (T*Qf)*(Qp-Qf)/QpUS
gallon66.674Time between the startNos/hour65Net flow when not
pumping, , QfUS GPM20.006Net flow when pumping, , (Qp-Qf)US
GPM10.007Time taken to fill , t1 = V/QfMin3.338Time taken to empty,
t2 =V/(Qp-Qf)Min6.679Time for complete cycle , T =(t1+t2)
=(V*Qp)/[Qf*(Qp-Qf)]Mins1010Sump Volume considered, VUS
gallon7011Sump Volume considered, Vft39.3612Sump Volume selected,
Vft310Selection of Sump SizeSl. NoDescription Unit
DataRemark1Required Volume of the sumpft310Calculated2Sump Length
offeredinch62Flow Serve OfferSump Length consideredinch723Sump
Length consideredft6.004Sump Width offeredinch42Flow Serve
OfferSump Width consideredinch425Sump Width consideredft3.5Flow
Serve Offer6Sump depthft0.487Sump depth required to accommodate the
vertical pump onlyft1.33Flow Serve Offer8Sump depth
consideredft3.5Selected Sump SizeSl. NoDescription Unit
DataRemark1Lengthinch72Asdiscussed with Mr. Bijan , Mr. Arman &
Banida on 05.21.20132Widthinch423Depthinch38Calculation of Water
Levels in the SumpSl. NoDescription Unit DataRemark1Pump
capacityUSGPM302Low Level Height from the bottom of the
sumpinch16Flow Serve Offer3Considering operation of pump between
Mid Level and high levelMins5Operation time is discussed with
Banida4Height of the Mid level from low levelft0.955Height of the
Mid level from low level consideredinch116Height of High Level from
Mid Levelinch57Height of High Level from Grade Levelinch68Total
height of the sumpinch389Total height of the sump
consideredinch3810Total volume between low level and mid
levelft320.0512Total volume between low level and mid levelUS
Gallon150So the size of the sump is O.K
NH3 Area Portable Sump PumpCalculation of Ammonia Storage Area
Portable Sump Pump Sizing :
Assumption :1. The pump capacity is based on the total water
requirement for the operation of the safety shower .
A. Selection of Pump CapacitySL.
No.DescriptionUnitDataReference1Water discharge from the operation
of one safety showerUS GPM20Drawing No. SRW-M-00-1003, Rev. B :
Water Balance Diagram2The duration of operation of safety
showerminutes15As recommended by Mr. B.K.M3Total water discharge
from the operation of one safety shower for 15 minutesUS
Gallon300As recommended by Mr. B.K.M4Interval of blowdown sump pump
operationminutes10As recommended by Mr. B.K.M5Assuming that the
total water will be pumped out by Portable Pump within 10 minutes,
the capacity of the pumpUS GPM30As recommended by Mr.
B.K.M9Selected Capacity of the PumpUS GPM30
B. Selection of Pipe SizeSL.
No.DescriptionUnitDataReference1Total water flowUS GPM302Consider
minimum pipe size as inch23Velocity of flow ft/sec3.26Ref:
Camereron Hydraulic Data
C Selection of Pump HeadAssuming that the pump will be
discharged into the road tanker/cooling tower basin, the discharge
pressure of the pump is considered as 30 ft.
Ammonia Storage Area Sump and Portable Sump Pump
SL .NoDescriptionUnitData1Total nos of Portable sump pump
No.3X100%2Capacity of each pumpUS GPM303Total Discharge Headft of
W.C.30.004TypeVertical SubmersibleCalculation of Minimum Sump
volume (Ammonia Storage Area)
Sl. NoDescription Unit DataRemarks1Pumping Rate, QpUS
GPM302Inflow Rate, QfUS GPM20.003Volume , V = (T*Qf)*(Qp-Qf)/QpUS
gallon66.674Time between the startNos/hour65Net flow when not
pumping, , QfUS GPM20.006Net flow when pumping, , (Qp-Qf)US
GPM10.007Time taken to fill , t1 = V/QfMin3.338Time taken to empty,
t2 =V/(Qp-Qf)Min6.679Time for complete cycle , T =(t1+t2)
=(V*Qp)/[Qf*(Qp-Qf)]Mins1010Sump Volume considered, VUS
gallon7011Sump Volume considered, Vft39.3612Sump Volume selected,
Vft310Selection of Sump SizeSl. NoDescription Unit
DataRemark1Required Volume of the sumpft310Calculated2Sump Length
offeredinch16.4Flow Serve OfferSump Length consideredinch363Sump
Length consideredft3.004Sump Width offeredinch11.1875Flow Serve
OfferSump Width consideredinch365Sump Width consideredft3Flow Serve
Offer6Sump depthft1.117Sump depth required to accommodate the
vertical pump onlyft0.53Flow Serve Offer8Sump depth
consideredftSelected Sump SizeSl. NoDescription Unit
DataRemark1Lengthinch36Asdiscussed with Mr. Bijan , Mr. Arman &
Banida on 05.21.20132Widthinch363Depthinch52Calculation of Water
Levels in the SumpSl. NoDescription Unit DataRemark1Pump
capacityUSGPM302Low Level Height from the bottom of the
sumpinch6.375Flow Serve Offer3Considering operation of pump between
Mid Level and high levelMins5Operation time is discussed with
Banida4Height of the Mid level from low levelft2.235Height of the
Mid level from low level consideredinch276Height of High Level from
Mid Levelinch137Height of High Level from Grade Levelinch68Total
height of the sumpinch529Total height of the sump
consideredinch5210Total volume between low level and mid
levelft320.0511Total volume between low level and mid levelUS
Gallon150So the size of the sump is O.K
Portable Sump Pump for TransforCalculation of sizing of Portable
Sump Pump for Trasformer Pit
A. Selection of capacity of the PumpSl No.
DescriptionUnitData.Remarks1Total capacity of transformer oil for
125 MVA Transformerliter31000Information received from Electrical
Department2Total capacity of transformer oil for 125 MVA
TransformerUS Gallon8189.33513Consider that the total oil will be
disposed off by portable sump pump Minutes904Capacity of the pumpUS
GPM90.995Considering 10 % margin, the capacity of the pumpUS
GPM1006Selected capacity of the pumpUS GPM100B. Selection of Pipe
SizeSL. No.DescriptionUnitDataReference1Total water flowUS
GPM1002Consider minimum pipe size as inch33Velocity of flow
ft/sec4.34Ref: Camereron Hydraulic DataC Selection of Pump
HeadAssuming that the pump will be discharged into the road tanker,
the discharge pressure of the pump is considered as 20 ft.
125 MVA Transformer Area Sump & Portable Sump Pump
SL .NoDescriptionUnitData1Total nos of Portable sump pump
No.1X100%2Capacity of each pumpUS GPM1003Total Discharge Headft of
W.C.20.004TypeVertical SubmersibleCalculation of Minimum Sump
volume (Transformer Pit for 125 MVA Transformer)
Sl. NoDescription Unit DataRemarks1Pumping Rate, QpUS
GPM1002Inflow Rate, QfUS GPM90.993Volume , V = (T*Qf)*(Qp-Qf)/QpUS
gallon81.964Time between the startNos/hour65Net flow when not
pumping, , QfUS GPM90.996Net flow when pumping, , (Qp-Qf)US
GPM9.017Time taken to fill , t1 = V/QfMin0.908Time taken to empty,
t2 =V/(Qp-Qf)Min9.109Time for complete cycle , T =(t1+t2)
=(V*Qp)/[Qf*(Qp-Qf)]Mins1010Sump Volume considered, VUS
gallon10011Sump Volume considered, Vft313.3712Sump Volume selected,
Vft315Selection of Sump SizeSl. NoDescription Unit
DataRemark1Required Volume of the sumpft315Calculated2Sump Length
offeredinch36.625Flow Serve OfferSump Length consideredinch603Sump
Length consideredft5.004Sump Width offeredinch32.69Flow Serve
OfferSump Width consideredinch605Sump Width consideredft5Flow Serve
Offer6Sump depthft0.607Sump depth required to accommodate the
vertical pump onlyft0.67Flow Serve Offer8Sump depth
consideredftSelected Sump SizeSl. NoDescription Unit
DataRemark1Lengthinch60Asdiscussed with Mr. Bijan , Mr. Arman &
Banida on 05.21.20132Widthinch603Depthinch56Calculation of Water
Levels in the SumpSl. NoDescription Unit DataRemark1Pump
capacityUSGPM1002Low Level Height from the bottom of the
sumpinch8.06Flow Serve Offer3Considering operation of pump between
Mid Level and high levelMins5Operation time is discussed with
Banida4Height of the Mid level from low levelft2.675Height of the
Mid level from low level consideredinch326Height of High Level from
Mid Levelinch107Height of High Level from Grade Levelinch68Total
height of the sumpinch569Total height of the sump
consideredinch5610Total volume between low level and mid
levelft366.8411Total volume between low level and mid levelUS
Gallon500So the size of the sump is O.K
Sheet1