Application of Exergy Analysis for the Ammonia Vapor Compression Refrigeration Systems in Cold Store

A exergy analysis of an ammonia vapour compression refrigeration cycle in a cold store was presented under a constant state temperaturet,he physical properties of ammonia was simulated using linear method of fitting both under constant and change condensing temperature.Exergy destruction of the various components of the refrigeration system,exergetic efficiency and coefficient of the system were analysed and calculated.The results indicated that the exergy destruction in the evaporator is highestf,ollowed by the compressor and condenser.To improve the performance of the ammonia vapor compression system in the cold storer,aising the exergetic efficiency of its evaporator,compressor and condenser must be first considered.It suggested that reducing condensing temperature is a good measure to improve the exergetic efficiency of the system on constant state temperature.