A gas-turbine engine operates with 2-stage compression and 2-stage expansion. It receives incoming nir at 100 kPa and 25°C before the air passes through a regeneration, reheating and intercooling processes. Across each compressor, the pressure ratio is 3,8, with 300 kJkg of heat are received by the air at cach combustion chamber. The generator is operating perfectly and increases the cold air temperature by 22°C. Assaming iseniropie operations during compression and expansion stages, with constant speuific heats at room temperature, evaluate the system's thermal efficiency.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A gas-turbine engine operates with 2-stage compression and 2-stage expansion. It receives incoming nir at 100 kPa and 25°C before the air passes through a regeneration, reheating and intercooling processes. Across each compressor, the pressure ratio is 3,8, with 300 kJkg of heat are received by the air at cach combustion chamber. The generator is operating perfectly and increases the cold air temperature by 22°C. Assaming iseniropie operations during compression and expansion stages, with constant speuific heats at room temperature, evaluate the system's thermal efficiency.

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