PPE ME 321 Cycles.pdf power plant engineering cycles overview

power plant engineering cycles overview

1. “Vapour Power Cycles”
AdeelAhmed Khan, Assistant
Professor (MED)
POWER PLANT ENGINEERING
(ME-321)
`

2. Power Plant Engineering ME-3212
VapourPowerCycle:Apowercycleinwhichtheworkingfluidisalternatively
vaporizedandcondensed
CarnotCycle:

3. A Simple Vapor Power Plant
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4. Rankine Cycle:
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5. Rankine Cycle:
5
Turbine
Condenser
Pump
Boiler5 6 w
Q
1=h
1-h
4
W
T=h
1-h
2
Q
2=h
2-h
3
W
P =
Power Plant Engineering ME-321

6. Performance Parameters
6
Thermal Efficiency
Work Ratio
Steam Rate or Specific Steam Consumption
Heat Rate
Power Plant Engineering ME-321

7. Effect of operating conditions on Rankine cycle efficiency:
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Superheating the steam at Constant Pressure: Increasing boiler pressure:
Reducing Condenser Pressure:
Power Plant Engineering ME-321

8. Reheat Cycle:
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9. Reversible Process:
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10. Irreversibility’s:
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11. Internal Irreversible Rankine Cycle:
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Isentropic efficiency of turbine:
Isentropic efficiency of pumps:
Power Plant Engineering ME-321

12. Heat Exchanger:
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13. Heat Exchanger:
Power Plant Engineering ME-31213

14. Heat Exchanger:
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Variation of fluid temperatures in a heat exchanger when one
of the fluids condenses or boils.
Power Plant Engineering ME-321

15. External Irreversible Rankine Cycle :
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16. External Irreversible Rankine Cycle :
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