Regenerative cycle thermal efficiency is mcq

        

MCQ  

Regenerative cycle thermal efficiency is




Options 

A) Same as simple Rankine cycle efficiency 

B) always greater than simple Rankine cycle efficiency 

C) always smaller than simple Rankine cycle efficiency 

D) None of these 


Correct answer : option B ( solution discussed below)



Solution

In Regenerative cycle some heat is extracted from turbine and this heat is used for preheating the feed water. So feed water temperature is increased. 

Thats why boiler required less heat for conversion of feed water into steam, so efficiency of regenerative cycle is always greater than simple Rankine cycle thermal efficiency.


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