Waste water at 95 celsius is used to generate power while th

Waste water at 95 celsius is used to generate power while the ambient temperature is 25 celsius. What is the maximum thermal efficiency?

Solution

Solution :

Maximum thermal efficiency is achieved in carnot cycle.

The efficiency of a carnot cycle is given by

Efficiency = 1-(T_c/T_h)

Here T_c= 25 C = 298 K

T_h = 95 C = 368 K

Hence

Efficiency = 1-( 298/368)

Efficiency= 19.0217 %