A water turbine is one of the most important parts to generate electricity in hydroelectric power plants. The generation of hydroelectric power is relatively cheaper than the power generated by other sources. There are various types of turbines such
working sheet of Steam turbine efficiency calculationDeskripsi lengkap
THIS SPREAD SHEET CAN BE USE TO CALCULATE THE HEAT LOAD IN BTU FOR SPECIFIC ROOMFull description
This presentation from B&W states about the heat rate improvement opportunities in the existing fleet.Full description
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The primary objective of this report is to provide a convenient, consistent and accurate method of calculating heating and cooling loads and to enable the designer to select systems that meet the requirement for efficient utilization and are also res
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the heat calculationDescripción completa
technical directive of power plant
Ecuaciones para el cálculo de caída de presión a través de placas de orificio
LOAD 160 MW Time 17.15 Hrs Calculation of Heat Rate by Enthalpy method The following readings are to be taken keeping load constant. Description TAG No.at site Value Main steam flow to turbine ¾ BFQ0001 541 T/HR .TG158 of DCS Mega watt Generated ¾ BW0003 160 MW .TG158 of DCS Main St Steam fl flow (L (L+R) N. A.(Same as as MS MST) Main St Steam Pr Pr. At At tu turbine M.S.and HRH Pr. 109 Kgf/cm² inlet Trend page 2 of WSPOSE 106.8 bar Main St Steam te temp.at tu t urbine M.S.and HRH Temp. 534.85 oc inlet Trend page 301 of WSPOSE Feed wa water pr pressure at at ¾ FP 1013 123.3Kgf/cm² economizer inlet 120.5 bar Feed wa water te temp.at ¾ FT 0001 230.0 oc economizer inlet. HRH.PR M.S.and HRH Pr. 29.31 Kgf/cm² Trend page 2 of WSPOSE 28.7 bar HRH TEMP M.S.and HRH Temp 526 oc Trend page 3 of WSPOSE CRH.PR M.S.and HRH Pr. 30.85 Kgf/cm² Trend page 2 of WSPOSE 30.2 bar CRH TEMP ¾ RT1001 & ¾ BT1007 360 oc Graphics of page 51 of DCS Reheater sp spray fl flow (L (L+R) ¾ BF BF1001 & ¾ BF BF1002 26 tons/Hr. Graphics of page 100 of DCS Feed fl flow at at ec economizer in inlet ¾ FF FFQ 00 001 530 tons/hr Graphics of page 47 of DCS Extraction PH PH QT QT HP HPH6 in inlet ¾ XP XP 10 1009 30.85 Kgf/cm² Graphics of page 42 of DCS 30.2 bar Extraction Te Temp QT QT HP HPH6 ¾ XT 1003 365 oc inlet Graphics of page 42 of DCS Drain Temp at HPH6 ¾ DT 1001 196.0 oc Graphics of page 44 of DCS Feed Feed wat water er tem temp p at HPH HPH6 6 ¾ FT 1003 230.0 oc outlet Graphics of page 44 of DCS Feed eed wa water ter tem temp p at at HP HPH6 ¾ FT 1204 190.0 oc inlet Graphics of page 44 of DCS BFP HDR PR. ¾ FP 1010 139 Kgf/cm²
CALCULATION OF ENTHALPY HMST = Enthalpy of Main Steam to turbine , Pr. and Temp needed are:Pr.. to turbine inlet (PMST)= 106.8 bar o Temp. to turbine inlet (TMST) = 534.85 c The enthalpy read in Mollier chart=3450 KJ/Kg =3450 X 1 KCL/Kg 4.18 HMST = 821. 1 KCL/Kg HFW = Enthalpy of feed water of economizer inlet, PR and Temp needed are:Feed water PR. To Economizer inlet (PFW)= 120.5 bar o Feed water PR. To Economizer inlet (TFW)= 230.0 c o o The enthalpy read in Steam table corresponding to temp.= 230.0 c c =1492 KJ/Kg =1492 X 1 KCL/Kg 4.18 HFW=235.62 KCL/Kg HHRH = Enthalpy of HRH steam , PR and Temp. needed are:HRH steam PR. (PHRH) =28.7 bar HRH steam Temp. (THRH) =526 o c The enthalpy read in molier chart =3510 KJ/Kg =3510 X 1 KCL/Kg 4.18 HHRH=835.38 KCL/Kg HCRH = Enthalpy of CRH steam , PR and Temp needed are:CRH steam PR. (PCRH) =30.2 bar CRH steam Temp. (TCRH) =360 oc The enthalpy read in molier chart =3100 KJ/Kg =3100 X 1 KCL/Kg 4.1868 HCRH=737.8 KCL/Kg HEH6 = Enthalpy of extraction steam to HPH6, PR and Temp needed are:Extraction steam Pr. To HPH6(PEH6) =34.69 bar o Extraction steam Temp To HPH6(TEH6) =350.4 c The enthalpy read in molier chart =3100 KJ/Kg =3100 X 1 KCL/Kg 4.1868 HCRH=737.8 KCL/Kg HDH6 = Enthalpy of extraction steam to HPH6 , PR and Temp needed are:Extraction steam Temp To HPH6(PEH6) =30.2 bar o Drain steam Temp To HPH6(TDH6) =196 c o The enthalpy read in steam table corresponding to temp =196 c =1008.4 KJ/Kg =1008.4 X 1 KCL/Kg 4.1868 Search HDH6=239.99 KCL/Kg Search History: = Enthalpy of steam feed water to HPH6 outlet, PR and Temp needed are:HFWHO6 Searching... BFP discharge header PR (PBFD) =136 bar o Temp.of feed00 water of HPH6 outlet(TFW HO6) =230 c Result 00 of o The enthalpy read in steam table corresponding to temp =230 c =990 KJ/Kg 00 results for result for = 990 X 1 KCL/Kg 4.18 p. HFW HO6=235.62 KCL/Kg
HFWHI 6 = Enthalpy of steam feed water to HPH6 outlet PR and Temp needed are:BFP discharge header PR (PBFD) =136 bar o Temp.of feed water of HPH6 inlet(TFW HI6) =190 c o The enthalpy read in steam table corresponding to temp =190 c =807 KJ/Kg =807 X 1 KCL/Kg 4.18 HFW HI6=192.06 KCL/Kg
CALCULATION OF HEAT RATE FEH6 = Flow of Extraction steam to HPH6 FFW X (HFW HO6 – HFW HI6) FEH6 = (HE H6 – HDH6) =Feed flow to economizer inlet X (Enthalpy of feed water of HPH6 outlet – Enthalpy of feed water of HPH6 inlet) (Enthalpy of Extraction Steam of HPH6 – Enthalpy of Drain water of HPH6 ) = 530 X ( 235.62 – 192.06) 737.8 – 239.99 = 530 X 43.56 497.81 FEH6 = 46.37 tons / hrs . FHRH = HRH Flow =FHRH=FMS - FEH6 + FRHS = Total main steam flow - flow of extraction steam to HPH6 + Total Reheater spray flow = 541 – 46.37 + 26 FHRH =520.63 tons / hrs . QT= heat input to turbine cycle = FMST(HMST-HFW) X 1000 + FHRH ( HHRH – HCRH) X 1000 =+ Hot Reheat flow X (Enthalpy of HRH steam - Enthalpy of HCRH steam)X1000 = 541(821.1-235.62)X1000+520.63 (835.38-737.8)X1000 =541 X (585.48) X 1000 +520.63 (97.58) X 1000 =316744.68 X 1000 + 50803X 10000 =367547.68 X 1000 KCL /HR Turbine Heat Rate = ( QT) 1000 X MWG (Where MWG=MW generated) = 367547.68 X 1000 1000 X 160 =2297 KCL / KWH
Hence, Turbine Heat Rate =2303.8 KCL / KWH
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