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Category > Engineering Posted 25 Apr 2017 My Price 5.00

Air enters the compressor of a gas turbine

6.147   Air enters the compressor of a gas turbine power plant operating at steady state at 290  K, 100 kPa  and  exits at 420 K, 330 kPa. Stray heat transfer and kinetic and potential energy effects are negligible. Using the ideal gas model for air, determine the isentropic compressor efficiency.

6.148   Air at 258C, 100 kPa enters a compressor operating at steady state and exits at 2608C, 650 kPa. Stray heat transfer and kinetic and potential energy effects are negligible. Modeling air as an ideal gas with 5 1.4, determine the isentropic compressor efficiency.

6.149   Air at 290 K, 100 kPa enters a compressor operating at steady state and is compressed adiabatically to an exit state of 420 K, 330 kPa. The air is modeled as an ideal gas, and kinetic and potential energy effects are negligible. For the compressor, (a) determine the rate of entropy production, in kJ/K per kg of air flowing, and (b) the isentropic compressor efficiency.

 

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Status NEW Posted 25 Apr 2017 06:04 PM My Price 5.00

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