The temperatures of the three heat reservoirs representing the heat source, the refrigerated space, and the heat sink of an ideal threeheat-reservoir absorption cycle are 90°C, 6°C and 30°C...

The temperatures of the three heat reservoirs representing the heat source, the refrigerated space, and the heat sink of an ideal threeheat-reservoir absorption cycle are 90°C, 6°C and 30°C respectively. The rate of heat absorption from the cold reservoir is 8 kW. (a) Calculate the COP of the cycle, and the heat rejection rate to the heat sink. (b) If the heat interaction between each reservoir and the working fluid of the internally reversible cycle requires a temperature difference of 5°C, calculate the COP of the cycle, and the rate of heat supply from the heat source.