In this study, a cascade refrigeration system comprising gas and vapor compression cycles operating at ultra-low temperature was designed. the thermodynamic analyses, R744, R404A, R410A refrigerants in high cycle (HTC), R1150, R170, R23 low (LTC) were used. Thermodynamic analyses carried out using Engineering Equation Solver package program. Outputs considered were: performance(COP), ratio, mas...

Direct discharge of waste heat from internal combustion engines (ICEs) is unfavorable for the efficient and clean fuel utilization. Here, a novel combined absorption-compression cascade refrigeration cycle proposed to efficiently capture low-grade supply cooling capacity food freezing in vessels or refrigerated trucks. The intention this work lies in: i) Comprehensively evaluating performances ...

The Cold chain/Refrigeration plays an important role for preserving vaccines as per the vaccine storage and guidelines prescribed by World Health Organizations it is better than most of other preservation methods. primary goal adopting phase change material to increase performance, cooling duration, capacity storage, sustain steady effect a longer length time during power outages. In experiment...