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TURBINE CYCLE HEAT
RATE CALCULATION
SHIVAJI CHOUDHURY
TURBINE CYCLE
PERFORMANCE CALCULATION
 1.Turbine cycle heat rate calculation.
(210 MW –KWU Turbine)
 2.HP turbine (HP cylinder ) efficiency
calculation .(210 MW –KWU Turbine)
WHAT IS HEAT RATE OF TURBINE
CYCLE
 Heat rate is the heat input required
per unit of power generated , for
specific fuel being fired and specific
site conditions.
1.1.TURBINE CYCLE
HEAT RATE CALCULATION
 Heat rate calculation by enthalpy
method.
 For 210 MW KWU turbine.
 #ST: From steam table.
1.2.TURBINE CYCLE HEAT RATE
CALCULATION(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.
1.3.MEASUREMENT
(TURBINE CYCLE HEAT RATE CALCULATION)
SN TAG NO DESCRIPTION MEASURED
VALUE
UNIT
1.1 FMST M S FLOW TO
TURBINE 692 T/HR
1.2 MWG MEGA WATT
GENERATED
206 MW
1.3 PMST PRESS AT MS
TURBINE INLET 132.2 KG/CM2
1.4 TMST TEMP AT MS
TURBINE INTET 528 DEG C
1.5 PFW PRESS FW AT
ECO IN 154 KG/CM2
1.6 TFW TEMP FW AT
ECO IN 238.5 DEG C
1.7 PHRH PRESS HRH
33.7
KG/CM2
1.8 THRH TEMP HRH
360 DEG C
1.9 PCRH PRESS CRH
37.07 KG/CM2
1.4.MEASUREMENT
(TURBINE CYCLE HEAT RATE CALCULATION)
S.N TAG NO DESCRIPTION MEARURED
VALUE
UNIT
1.10 TCRH TEMP CRH STM
360
DEG C
1.11 FRHS FLO RH SPRAY
(R+H) 8.0
T/HR
1.12 FFW FLO FW ECO IN
625
T/HR
1.13 PEH6 PR EXT STM TO
HPH6 37.07
KG/CM2
1.14 TEH6 TEMP EXT STM TO
HPH6 360
DEG C
1.15 TDH6 TEMP DRN HPH6
206.5
DEG C
1.16 TFWHO6 TEMP FW HPH6
OUT 239.2
DEG C
1.17 TFWHI6 TEMP FW HPH6 IN
196.2
DEG C
1.18 PBFD PR BFP DIS HDR
171.0
KG/CM2
1.5.ENTHALPY CALCULATION
(TURBINE CYCLE HEAT RATE CALCULATION)
(FROM STEAM TABLE); UNIT-KCAL/KG
S.N TAG NO DESCRIPTION EQUATION RESULTS
2.1 HMST ENTH MS TO TURB F(PMST,TMST) #ST
816.85
2.2 HFW ENTH FW TO ECON INLET F(PFW,TFW) # ST
246.13
2.3 HHRH ENTH HRH STM F(PHRH,THRH)#ST
840.70
2.4 HCRH ENTH CRH STM F(PCRH,TCRH) #ST
752.36
2.5 HEH6 ENTH EXT STM TO HPH6 F(PEH6,TEH6) #ST
752.36
2.6 HDH6 ENTH HPH6 DRN F(PEH6,TDH6)#ST
210.63
2.7 HFWHO6 ENTH FW HPH6 OUT F(PBFD,TFWHO6)#ST
247.12
2.8 HFWHI6 ENTH FW HPH6 IN F(TPBD,TFWHI6)#ST
199.52
1.6.CALCULATION FOR HOT REHEAT FLOW
(TURBINE CYCLE HEAT RATE CALCULATION)
S.N TAG NO DESCRIPTION EQUATION RESULT UNIT
3.1 FEH6 FLOW EXT STM TO HPH6 FFW(HFWHO6-HFWHI6)
_________________
HEH6-HDH6
54.91
T/HR
3.2 FHRH HRH FLOW FHRH=FMST-FEH6+FRHS
645.09 T/HR
1.7.TURBINE CYCLE HEAT RATE
CALCULATION
(TURBINE CYCLE HEAT RATE CALCULATION)
S
.NO
TAG
NO
DESCRIPTION EQUATION RESULTS UNIT
4.1 QT HEAT INPUT
TO TURBINE
CYCLE
= FMST(HMST-HFW)X1000
+FHRH(HHRH-CRH)X1000
451925.49X1000 KCAL/HR
4.2 THR TURBINE
HEAT RATE
QT
___________
MWGX1000
2193.81 KCAL/KWH
HEAT RATE OF TURBINE CYCLE
UNIT-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
2.HP TURBINE (HP CYLINDER)EFFICIENCY
(ENTHALY DROP METHOD)CALCULATION
 HP turbine (HP cylinder) Efficiency
calculation is done in three parts
 1.Measurement
 2.Enthalpy calculation
 3.HP cylinder efficiency calculation
 4.Note
2.1.MEASUREMENT (HP cylinder efficiency)
S.NO TAG NO DESCRITION MEASUREMENT UNIT
1.1 TMST TEMP MS TURBINE IN
528
DEG C
1.2 PMST PRESS MS TURBINE IN
132.2
KG/CM2
1.3 TCRH TEMP CRH
360
DEG C
1.4 PCRH PRESS CRH
37.07
KG/CM2
2.2.ENTHALPY CALCULATION
(HP cylinder efficiency),
FROM STEAM TABLE , UNIT-KCAL/KG
S.NO TAG NO DESCRIPTION EQUATION RESULT
2.1 HMST ENTHALPY OF
MS TURBINE IN
F(TMST,PMST)
#ST 816.85
2.2 HCRHA ENTHALPY OF
CRH STEAM
(ACTUAL)
F(TCRH,PCRH)#ST
752.36
2.3 HCRHT ENTHTHALPY
OF CRH STM
(THEORITICAL)
F(PMST,TMST,
PCRH)#ST
730.86
2.3.CALCULATION
(HP TURBINE EFFICIENCY)
S.NO TAG NO DESCRIPTION EQUATION RESULT UNIT
1 EHPT ENTH DROP EFFICIENCY
HPT
HMST-HCRHA
__________
HMST-HCRHT
X100
74.9 %
2.4.NOTE
(HP TURBINE EFFICIENCY)
 EHPT- this is the ratio of ACTUAL CHANGE in
enthalpy across the HP TURBINE to theoretical
change (at constant entropy) expressed as a
percentage
TURBINE CYCLE - 500 MW
Turbine cycle
Heat hate
TURBINE 500 MW
Turbine Cylinder
efficiency
HEAT RATE OF TURBINE CYCLE
UNIT-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
Turbine cycle heat rate
STANDARDS
 ASME PTC 6-Steam turbine
performance test code.
 DIN 1943 –Thermal acceptance tests
for steam turbine.
 BS EN 60953-Rules for steam turbine
thermal acceptance test.
 IEC 953 –Rules for steam turbine’s
thermal acceptance test.
THANKING YOU

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Turbine cycle heat rate calculation

  • 1. TURBINE CYCLE HEAT RATE CALCULATION SHIVAJI CHOUDHURY
  • 2. TURBINE CYCLE PERFORMANCE CALCULATION  1.Turbine cycle heat rate calculation. (210 MW –KWU Turbine)  2.HP turbine (HP cylinder ) efficiency calculation .(210 MW –KWU Turbine)
  • 3. WHAT IS HEAT RATE OF TURBINE CYCLE  Heat rate is the heat input required per unit of power generated , for specific fuel being fired and specific site conditions.
  • 4. 1.1.TURBINE CYCLE HEAT RATE CALCULATION  Heat rate calculation by enthalpy method.  For 210 MW KWU turbine.  #ST: From steam table.
  • 5. 1.2.TURBINE CYCLE HEAT RATE CALCULATION(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. 1.3.MEASUREMENT (TURBINE CYCLE HEAT RATE CALCULATION) SN TAG NO DESCRIPTION MEASURED VALUE UNIT 1.1 FMST M S FLOW TO TURBINE 692 T/HR 1.2 MWG MEGA WATT GENERATED 206 MW 1.3 PMST PRESS AT MS TURBINE INLET 132.2 KG/CM2 1.4 TMST TEMP AT MS TURBINE INTET 528 DEG C 1.5 PFW PRESS FW AT ECO IN 154 KG/CM2 1.6 TFW TEMP FW AT ECO IN 238.5 DEG C 1.7 PHRH PRESS HRH 33.7 KG/CM2 1.8 THRH TEMP HRH 360 DEG C 1.9 PCRH PRESS CRH 37.07 KG/CM2
  • 7. 1.4.MEASUREMENT (TURBINE CYCLE HEAT RATE CALCULATION) S.N TAG NO DESCRIPTION MEARURED VALUE UNIT 1.10 TCRH TEMP CRH STM 360 DEG C 1.11 FRHS FLO RH SPRAY (R+H) 8.0 T/HR 1.12 FFW FLO FW ECO IN 625 T/HR 1.13 PEH6 PR EXT STM TO HPH6 37.07 KG/CM2 1.14 TEH6 TEMP EXT STM TO HPH6 360 DEG C 1.15 TDH6 TEMP DRN HPH6 206.5 DEG C 1.16 TFWHO6 TEMP FW HPH6 OUT 239.2 DEG C 1.17 TFWHI6 TEMP FW HPH6 IN 196.2 DEG C 1.18 PBFD PR BFP DIS HDR 171.0 KG/CM2
  • 8. 1.5.ENTHALPY CALCULATION (TURBINE CYCLE HEAT RATE CALCULATION) (FROM STEAM TABLE); UNIT-KCAL/KG S.N TAG NO DESCRIPTION EQUATION RESULTS 2.1 HMST ENTH MS TO TURB F(PMST,TMST) #ST 816.85 2.2 HFW ENTH FW TO ECON INLET F(PFW,TFW) # ST 246.13 2.3 HHRH ENTH HRH STM F(PHRH,THRH)#ST 840.70 2.4 HCRH ENTH CRH STM F(PCRH,TCRH) #ST 752.36 2.5 HEH6 ENTH EXT STM TO HPH6 F(PEH6,TEH6) #ST 752.36 2.6 HDH6 ENTH HPH6 DRN F(PEH6,TDH6)#ST 210.63 2.7 HFWHO6 ENTH FW HPH6 OUT F(PBFD,TFWHO6)#ST 247.12 2.8 HFWHI6 ENTH FW HPH6 IN F(TPBD,TFWHI6)#ST 199.52
  • 9. 1.6.CALCULATION FOR HOT REHEAT FLOW (TURBINE CYCLE HEAT RATE CALCULATION) S.N TAG NO DESCRIPTION EQUATION RESULT UNIT 3.1 FEH6 FLOW EXT STM TO HPH6 FFW(HFWHO6-HFWHI6) _________________ HEH6-HDH6 54.91 T/HR 3.2 FHRH HRH FLOW FHRH=FMST-FEH6+FRHS 645.09 T/HR
  • 10. 1.7.TURBINE CYCLE HEAT RATE CALCULATION (TURBINE CYCLE HEAT RATE CALCULATION) S .NO TAG NO DESCRIPTION EQUATION RESULTS UNIT 4.1 QT HEAT INPUT TO TURBINE CYCLE = FMST(HMST-HFW)X1000 +FHRH(HHRH-CRH)X1000 451925.49X1000 KCAL/HR 4.2 THR TURBINE HEAT RATE QT ___________ MWGX1000 2193.81 KCAL/KWH
  • 11. HEAT RATE OF TURBINE CYCLE UNIT-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. 2.HP TURBINE (HP CYLINDER)EFFICIENCY (ENTHALY DROP METHOD)CALCULATION  HP turbine (HP cylinder) Efficiency calculation is done in three parts  1.Measurement  2.Enthalpy calculation  3.HP cylinder efficiency calculation  4.Note
  • 13. 2.1.MEASUREMENT (HP cylinder efficiency) S.NO TAG NO DESCRITION MEASUREMENT UNIT 1.1 TMST TEMP MS TURBINE IN 528 DEG C 1.2 PMST PRESS MS TURBINE IN 132.2 KG/CM2 1.3 TCRH TEMP CRH 360 DEG C 1.4 PCRH PRESS CRH 37.07 KG/CM2
  • 14. 2.2.ENTHALPY CALCULATION (HP cylinder efficiency), FROM STEAM TABLE , UNIT-KCAL/KG S.NO TAG NO DESCRIPTION EQUATION RESULT 2.1 HMST ENTHALPY OF MS TURBINE IN F(TMST,PMST) #ST 816.85 2.2 HCRHA ENTHALPY OF CRH STEAM (ACTUAL) F(TCRH,PCRH)#ST 752.36 2.3 HCRHT ENTHTHALPY OF CRH STM (THEORITICAL) F(PMST,TMST, PCRH)#ST 730.86
  • 15. 2.3.CALCULATION (HP TURBINE EFFICIENCY) S.NO TAG NO DESCRIPTION EQUATION RESULT UNIT 1 EHPT ENTH DROP EFFICIENCY HPT HMST-HCRHA __________ HMST-HCRHT X100 74.9 %
  • 16. 2.4.NOTE (HP TURBINE EFFICIENCY)  EHPT- this is the ratio of ACTUAL CHANGE in enthalpy across the HP TURBINE to theoretical change (at constant entropy) expressed as a percentage
  • 17. TURBINE CYCLE - 500 MW Turbine cycle Heat hate
  • 18. TURBINE 500 MW Turbine Cylinder efficiency
  • 19. HEAT RATE OF TURBINE CYCLE UNIT-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
  • 21. STANDARDS  ASME PTC 6-Steam turbine performance test code.  DIN 1943 –Thermal acceptance tests for steam turbine.  BS EN 60953-Rules for steam turbine thermal acceptance test.  IEC 953 –Rules for steam turbine’s thermal acceptance test.