A Carnot Heat Engine is to be used to represent the complex

A Carnot Heat Engine is to be used to represent the complex Rankine ReheatRegenerative Cycle given in example 10-6 on page 575 in your text, where the maximum temperature is 600oC and the condenser pressure is 10kPa. What is TL? What is the Carnot efficiency? How does this compare to the values discussed on page 577?

Solution

(a) T_L    = saturation temperature at 10 kPa   = 45.8 C   (from steam tables for water)

T_h     = 600 C

(b) carnot efficiency = 1 - T_l / T_h

                         = 1 - (273.15 + 45.8) / (600 +273.15)     = 63.4713 %

(c) Values discussed on page 577 are not provided in the question.