# Chapter 10 - Chapter 10:Vapor and Combined Power Cycles...

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Chapter 10:Vapor and Combined Power Cycles Objective:Analyze various vapor cycles with reheat, cogeneration, and combined gas-vapor cycle

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Topics to be covered • Carnot Vapor Cycles • Rankine Cycle: • Reheat Rankine Cycle • Regenerative Rankine Cycle • Cogeneration • Combined Gas-Vapor Power Cycle
Challenges: 1) Low T H (<374 0 C for steam) 2) compressor and turbine to handle two-phase tluids. Challenges: 1) Isentropic compression to high pressure 2) Isothermal heat transfer at variable pressures Can the Carnot Cycle be used with steam? (T critical =374 o C (647.1 K), P critical = 22.06 Mpa)

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Rankine Cycle: the ideal cycle for vapor power cycles (internally reversible) • 1-2 isentropic compression (liquid) •2 Æ 3 constant pressure heat addition •3 Æ 4 isentropic turbine •4 Æ 1 constant pressure heat rejection 1820-1872
Rankine Cycle: the ideal cycle for vapor power cycles 1 2 3 4 Specific volume P 2 P 1 1-2 isentropic compression (liquid) •2 Æ 3 constant pressure heat addition •3 Æ 4 isentropic turbine •4 Æ 1 constant pressure heat rejection entropy temperature

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Rankine Cycle: the ideal cycle for vapor power cycles
Steam Turbine Power Plant

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Solar Vapor-Power Cycle Concentrated Solar Thermal Power uses mirrors to concentrate the sun's energy and convert it to electricity using a steam, or rankine cycle
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## This note was uploaded on 01/25/2010 for the course ME 55806 taught by Professor Chen during the Spring '10 term at University of California, Berkeley.

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Chapter 10 - Chapter 10:Vapor and Combined Power Cycles...

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