Regenerative cycle thermal efficiency_______________?
Correct answer: A. is always greater than simple Rankine thermal efficiency
- A. is always greater than simple Rankine thermal efficiency
- B. is greater than simple Rankine cycle thermal efficiency only when steam is bled at particular pressure
- C. is same as simple Rankine cycle thermal efficiency
- D. is always less than simple Rankine cycle thermal efficiency
Explanation
Regeneration increases the mean temperature of heat addition and therefore raises thermal efficiency compared with the corresponding simple Rankine cycle. The main penalty is reduced turbine work because some steam is extracted before reaching the exhaust.
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