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# Turbine cycle heat rate calculation

FORMULA FOR STEAM TURBINE CYCLE HEAT RATE CALCULATION

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### Turbine cycle heat rate calculation

1. 1. TURBINE CYCLE HEATRATE CALCULATIONSHIVAJI CHOUDHURY
2. 2. TURBINE CYCLEPERFORMANCE CALCULATION 1.Turbine cycle heat rate calculation.(210 MW –KWU Turbine) 2.HP turbine (HP cylinder ) efficiencycalculation .(210 MW –KWU Turbine)
3. 3. WHAT IS HEAT RATE OF TURBINECYCLE Heat rate is the heat input requiredper unit of power generated , forspecific fuel being fired and specificsite conditions.
4. 4. 1.1.TURBINE CYCLEHEAT RATE CALCULATION Heat rate calculation by enthalpymethod. For 210 MW KWU turbine. #ST: From steam table.
5. 5. 1.2.TURBINE CYCLE HEAT RATECALCULATION(ENTHALPY METHOD) Heat rate calculation by enthalpy method. For 210 MW KWU turbine. CALCULATION IS DONE IN FOUR PARTS MEASUREMENT. ENTHALPY CALCULATION . CALCULATION FOR HOT REHEAT FLOW. TURBINE CYCLE HEAT RATE CALCULATION.
6. 6. 1.3.MEASUREMENT(TURBINE CYCLE HEAT RATE CALCULATION)SN TAG NO DESCRIPTION MEASUREDVALUEUNIT1.1 FMST M S FLOW TOTURBINE 692 T/HR1.2 MWG MEGA WATTGENERATED206 MW1.3 PMST PRESS AT MSTURBINE INLET 132.2 KG/CM21.4 TMST TEMP AT MSTURBINE INTET 528 DEG C1.5 PFW PRESS FW ATECO IN 154 KG/CM21.6 TFW TEMP FW ATECO IN 238.5 DEG C1.7 PHRH PRESS HRH33.7KG/CM21.8 THRH TEMP HRH360 DEG C1.9 PCRH PRESS CRH37.07 KG/CM2
7. 7. 1.4.MEASUREMENT(TURBINE CYCLE HEAT RATE CALCULATION)S.N TAG NO DESCRIPTION MEARUREDVALUEUNIT1.10 TCRH TEMP CRH STM360DEG C1.11 FRHS FLO RH SPRAY(R+H) 8.0T/HR1.12 FFW FLO FW ECO IN625T/HR1.13 PEH6 PR EXT STM TOHPH6 37.07KG/CM21.14 TEH6 TEMP EXT STM TOHPH6 360DEG C1.15 TDH6 TEMP DRN HPH6206.5DEG C1.16 TFWHO6 TEMP FW HPH6OUT 239.2DEG C1.17 TFWHI6 TEMP FW HPH6 IN196.2DEG C1.18 PBFD PR BFP DIS HDR171.0KG/CM2
8. 8. 1.5.ENTHALPY CALCULATION(TURBINE CYCLE HEAT RATE CALCULATION)(FROM STEAM TABLE); UNIT-KCAL/KGS.N TAG NO DESCRIPTION EQUATION RESULTS2.1 HMST ENTH MS TO TURB F(PMST,TMST) #ST816.852.2 HFW ENTH FW TO ECON INLET F(PFW,TFW) # ST246.132.3 HHRH ENTH HRH STM F(PHRH,THRH)#ST840.702.4 HCRH ENTH CRH STM F(PCRH,TCRH) #ST752.362.5 HEH6 ENTH EXT STM TO HPH6 F(PEH6,TEH6) #ST752.362.6 HDH6 ENTH HPH6 DRN F(PEH6,TDH6)#ST210.632.7 HFWHO6 ENTH FW HPH6 OUT F(PBFD,TFWHO6)#ST247.122.8 HFWHI6 ENTH FW HPH6 IN F(TPBD,TFWHI6)#ST199.52
9. 9. 1.6.CALCULATION FOR HOT REHEAT FLOW(TURBINE CYCLE HEAT RATE CALCULATION)S.N TAG NO DESCRIPTION EQUATION RESULT UNIT3.1 FEH6 FLOW EXT STM TO HPH6 FFW(HFWHO6-HFWHI6)_________________HEH6-HDH654.91T/HR3.2 FHRH HRH FLOW FHRH=FMST-FEH6+FRHS645.09 T/HR
10. 10. 1.7.TURBINE CYCLE HEAT RATECALCULATION(TURBINE CYCLE HEAT RATE CALCULATION)S.NOTAGNODESCRIPTION EQUATION RESULTS UNIT4.1 QT HEAT INPUTTO TURBINECYCLE= FMST(HMST-HFW)X1000+FHRH(HHRH-CRH)X1000451925.49X1000 KCAL/HR4.2 THR TURBINEHEAT RATEQT___________MWGX10002193.81 KCAL/KWH
11. 11. HEAT RATE OF TURBINE CYCLEUNIT-Kcal/KWH 210 MW TURBINE(LMZ)- 2063 210 MW TURBINE (KWU)- 210 MW- 1952 168 MW - 2001 500 MW TURBINE (KWU)- 500 MW - 1945 400 MW- 1988 300 MW- 2063.2 250 MW - 2134.3
12. 12. 2.HP TURBINE (HP CYLINDER)EFFICIENCY(ENTHALY DROP METHOD)CALCULATION HP turbine (HP cylinder) Efficiencycalculation is done in three parts 1.Measurement 2.Enthalpy calculation 3.HP cylinder efficiency calculation 4.Note
13. 13. 2.1.MEASUREMENT (HP cylinder efficiency)S.NO TAG NO DESCRITION MEASUREMENT UNIT1.1 TMST TEMP MS TURBINE IN528DEG C1.2 PMST PRESS MS TURBINE IN132.2KG/CM21.3 TCRH TEMP CRH360DEG C1.4 PCRH PRESS CRH37.07KG/CM2
14. 14. 2.2.ENTHALPY CALCULATION(HP cylinder efficiency),FROM STEAM TABLE , UNIT-KCAL/KGS.NO TAG NO DESCRIPTION EQUATION RESULT2.1 HMST ENTHALPY OFMS TURBINE INF(TMST,PMST)#ST 816.852.2 HCRHA ENTHALPY OFCRH STEAM(ACTUAL)F(TCRH,PCRH)#ST752.362.3 HCRHT ENTHTHALPYOF CRH STM(THEORITICAL)F(PMST,TMST,PCRH)#ST730.86
15. 15. 2.3.CALCULATION(HP TURBINE EFFICIENCY)S.NO TAG NO DESCRIPTION EQUATION RESULT UNIT1 EHPT ENTH DROP EFFICIENCYHPTHMST-HCRHA__________HMST-HCRHTX10074.9 %
16. 16. 2.4.NOTE(HP TURBINE EFFICIENCY) EHPT- this is the ratio of ACTUAL CHANGE inenthalpy across the HP TURBINE to theoreticalchange (at constant entropy) expressed as apercentage
17. 17. TURBINE CYCLE - 500 MWTurbine cycleHeat hate
18. 18. TURBINE 500 MWTurbine Cylinderefficiency
19. 19. HEAT RATE OF TURBINE CYCLEUNIT-Kcal/KWH 210 MW TURBINE(LMZ)- 2063 210 MW TURBINE (KWU)- 210 MW- 1952 168 MW - 2001 500 MW TURBINE (KWU)- 500 MW - 1945 400 MW- 1988 300 MW- 2063.2 250 MW - 2134.3
20. 20. Turbine cycle heat rate
21. 21. STANDARDS ASME PTC 6-Steam turbineperformance test code. DIN 1943 –Thermal acceptance testsfor steam turbine. BS EN 60953-Rules for steam turbinethermal acceptance test. IEC 953 –Rules for steam turbine’sthermal acceptance test.
22. 22. THANKING YOU