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The overall thermal efficiency of an ideal gas turbine plant is...

This question belongs to Mechanical Engineering Compressors, Gas Turbines And Jet Engines
Compressors, Gas Turbines and Jet Engines
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The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)

Answer & Solution
Correct Answer: Option C
The overall thermal efficiency of an ideal gas turbine plant is $$1 - {\left( {\frac{1}{{\text{r}}}} \right)^{\frac{{\gamma - 1}}{\gamma }}}$$
(Where r = Pressure ratio)
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