Question

What is the thermal efficiency of a gas power cycle using thermal energy reservoirs at 627°C and 60°C? The thermal efficiency is______ %

Answer 1

Answer

63 %

Explanation:

It is given that the reservoirs is at the temperature of 627°C and 27°C

So lower temperature that is$T_L$  = 60°C=273+60=333 K

And the higher temperature that is $T_H$  = 627°C =273+627=900 K

We know that the thermal efficiency of thermal reservoir = 1-$\frac{T_L}{T_H}$  = $1-\frac{333}{900}$ = 0.63 =63 %

So the efficiency of the reservoir is 63%