A power cycle operate between hot and cold reservoirs at 600k and 300k, receptively. At steady state the cycle develops a power output of .45MW while receiving energy by heat transfer from the hot reservoir at the rate of 1MW.
(a) Determine the thermal efficiency and the rate at which energy is rejected by heat transfer to the cold reservoir, in MW.
(b) Compare the results of part (a) with those of a reversible power cycle operating between these reservoirs and receiving the same rate of heat transfer from the hot reservoir.