Problem
1. Give an estimate for the overall COP of an ammonia absorption cycle used as a chiller to cool water to 5oC in a 25oC ambient when the small pump work is neglected. A heat source is available at 100oC. Also find the efficiency of the heat engine part and the COP of the refrigeration cycle part.
2. Consider a small ammonia absorption refrigeration cycle that is powered by solar energy and is to be used as an air conditioner. Saturated vapor ammonia leaves the generator at 50oC, and saturated vapor leaves the evaporator at 10oC. If 3000 kJ of heat is required in the generator (solar collector) per kilogram of ammonia vapor generated, determine the overall performance of this system.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.