Thermodynamic Performance Analysis of Cascade Refrigeration System - A Review

Cascade refrigeration system is the solution of one of the stable refrigeration systems operating at very low temperatures. It employs multiple refrigerants and so that a suitable pair of refrigerants can be chosen for a given application so that better system performance can be achieved. In the applications of liquefaction of petroleum vapours, liquefaction of industrial gases, manufacturing of dry ice, deep-freezing, etc. cascade refrigeration system is very useful. The performance evaluation of cascade refrigeration system enhances to understand the thermal behaviour of the system and so that modifications can be done to improve the COP of the system. Such evaluation can be helpful in optimization of various components in the cascade refrigeration system and so proper refrigerant pairs can be selected for suitable applications.