Consider an ideal gas-turbine cycle with two stages of compression and two stages of expansion. The pressure ratio across each stage of the compressor and turbine is 3. The air enters each stage of the compressor at 300 K and each stage of the turbine at 1200 K. Use variable specific heats. Determine the back work ratio and the thermal efficiency of the cycle, assuming a regenerator with 80 percent effectiveness is used.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Consider an ideal gas-turbine cycle with two stages of compression and two stages of expansion. The pressure
ratio across each stage of the compressor and turbine is 3. The air enters each stage of the compressor at 300 K and
each stage of the turbine at 12o0 K. Use variable specific heats.
Determine the back work ratio and the thermal efficiency of the cycle, assuming a regenerator with 80 percent effectiveness is used.
The back work ratio is
%.
The thermal efficiency is
%.
Transcribed Image Text:Required information Consider an ideal gas-turbine cycle with two stages of compression and two stages of expansion. The pressure ratio across each stage of the compressor and turbine is 3. The air enters each stage of the compressor at 300 K and each stage of the turbine at 12o0 K. Use variable specific heats. Determine the back work ratio and the thermal efficiency of the cycle, assuming a regenerator with 80 percent effectiveness is used. The back work ratio is %. The thermal efficiency is %.
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