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Lecture 20 PES Su 2011 annotated

# Lecture 20 PES Su 2011 annotated - ME 200 Thermodynamics I...

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ME 200: Thermodynamics I Lecture 20: System Integration Prof. Sojka Summer 2011

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October 13 th , 2010 ME 200 2 In this Lecture … We will: Analyze integrated systems .
3 Example 1 A gas turbine operating at steady state with air as the working fluid is shown. Components include an air compressor mounted on the same shaft as the turbine, a high-pressure heat exchanger for heating air before it enters the turbine, and a low-pressure heat exchanger where air is cooled before returning to the compressor. Kinetic and potential energy effects are negligible. The compressor and turbine are adiabatic. Air is an ideal gas, find: power required for the compressor, in hp, power output of turbine, in hp, and thermal efficiency of the cycle. ME 200 Q out P 4 = P 1 T 4 = 980 ºR W net 2 3 1 Q in Heat exchanger Heat exchanger Compressor Turbine 4 P 3 = P 2 T 3 = 2000 ºR P 2 > P 1 T 2 = 650 ºR P 1 = 1 atm T 1 = 520 ºR (AV) 1 = 30,000 ft 3 /min 6 July 2011

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4 Example 1 Find W c = ? in hp W t = ? in hp η = ?
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Lecture 20 PES Su 2011 annotated - ME 200 Thermodynamics I...

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