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Analysis of Power Generation Cycles

Analysis of Power Generation Cycles. P M V Subbarao Professor Mechanical Engineering Department. Development of Techno-economically Feasible Thermodynamic Model. Schematic of Rankine & Brayton cycles. Global Accounting of Energy Interactions. First law for a cycle:.

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Analysis of Power Generation Cycles

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  1. Analysis of Power Generation Cycles P M V Subbarao Professor Mechanical Engineering Department Development of Techno-economically Feasible Thermodynamic Model

  2. Schematic of Rankine & Brayton cycles

  3. Global Accounting of Energy Interactions • First law for a cycle:

  4. Net Power output (Income) of A Cycle

  5. Basic Expenditure in A cycle

  6. First Law Analysis & Figure of Merit for the Cycle

  7. Ideal Rankine Cycle : P-h Diagram Tmax=5500C 3 3 2 2 1 1 4 4 pmax=17Mpa =42.05% pmax=5Mpa =37.8%

  8. Ideal Rankine Cycle : P-h Diagram Tmax=5500C Tmax=4500C Tmax=6000C 3 2 1 4

  9. Selection of Optimum Boiler Pressure Tmax = 450 oC h Pressure, MPa

  10. pmax=10MPa

  11. Parametric Study of Rankine Cycle 6500C 6000C 5000C D.S.S. 4000C h 3000C P max

  12. Parametric Study of Rankine Cycle 23.5MPa 22MPa 18MPa 10MPa 6MPa D.S.S. h 3MPa 1MPa Tmax

  13. Progress in Rankine Cycle

  14. Layout of A Modern Power Plant

  15. Brayton Cycle : Working with Single Phase –Substance Qin Qout Wout

  16. Brayton Cycle for Power Generation 1-2 Adiabatic compression (in a compressor) 2-3 Constant pressure heat addition 3-4 IAdiabaticexpansion (in a turbine) 4-1 Constant pressure heat rejection

  17. Thermodynamic Analysis of Adiabatic Compression For an infinitesimal compression:

  18. Adiabatic Process by an Ideal Gas For an infinitesimal compression of perfect gas:

  19. Model for infinitesimal Adiabatic Process by a perfect Gas

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