Influence of internal operating parameters on exergy characteristics of ammoniac refrigerating units with different functions

The results of the exergy analysis of three industrial refrigerating units with different functions are shown in the paper. The analysis is based on a complex program of heat ad exergy calculation, designed o the base of modeling. Boiling temperature and the condition of heat-exchange surface of devices are considered as basic internal defining operating parameters for all units. And relative exergy refrigeration capacity or exergy efficiency factor is considered as the basic characteristic. The analysis of the received dependences has shown that even insignificant deviations in sizes of regime parameters considerably influence the operation efficiency of refrigerating units and their elements.