Journal Press India^®

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This paper mainly deals with the utility of hydrocarbons , R404a and other ecofriendly refrigerants in the low temperature circuit for semen preservation. The energy-exergy analysis have been carried out to find out the feasibility of above ecofriendly refrigerants in the Four stage cascade refrigeration system using R1234ze in high temperature circuit and R134a in primary intermediate circuit and R410a in secondary intermediate circuit. It was observed that the use of hydrocarbon is feasible for improving thermal performance of the above system by considering safety measures. The best second law performance was observed using R600a and low performance was observed using ethylene in the low temperature evaporator circuit without safety measure the system using R404a in low temperature evaporator circuit gives better performance using ethylene in low temperature circuit.

Keywords

Four Stage Cascade Refrigeration Systeml Energy –Exergy Analysis; Low Temperature Cascade System; Irreversibility Prediction

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