Investigation of chlorine-free HFC refrigerants which have both the advantages of HFCs and HCFCs. Thus the new study on the mixing of hydrofluorocarbons begins and new gases such as R507A and R417a are formed. All Blend blends are not the solution for replacing existing refrigerant as the GWP of the blended refrigerant should be lower than when using the refrigerant. Of the blended blends, R417a performed best and had the ability to replace current using R22 applications. R147a uses lower energy consumption than R22, where the experiment was carried out on the same appliance and under the same operating conditions. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay The refrigerant R417a includes R125, R134 and R600. Binit Kumar Jha conducted the theoretical study between the environmentally friendly refrigerant R600a and the widely used refrigerant R134a, and they observed that the discharge pressure of R600 is lower than that of R134a, and the refrigerating effect and coefficient of performance are relatively higher for R600a compared to R134a. Adil F. Momin and Manish H. Attal carried out experimental tests on the home refrigerator using phase change materials with R290/R600a blend as refrigerant, while the PCM used is ethylene glycol, coated on the back side of the evaporator. The addition of PCM improves heat transfer and increases evaporation temperatures. The thermal energy stored in the PCM is used during shutdown cycles, which helps in the continuous operation of the refrigeration. This leads to an increase in the coefficient of performance and a decrease in the refrigerant cycle time. Research to find a replacement refrigerant R134a has been conducted by several previous researchers. Prayudi and Roswati Nurhasanah also carried out a performance analysis of R600a and R134a refrigerants with the subcooling effect using liquid suction heat exchangers with cooling load. Cooling load changes are made by opening the valve in different positions. There is no impact on the compressor work due to the cooling load, and the compressor work increases with the subcooling effect. Please note: this is just an example. Get a custom paper from our expert writers now. Get Custom Essay The higher the subcooling temperature, the greater the temperature drop in the evaporator and R600a are giving better results than Prayudi Suparmin has done an experimental analysis on different refrigerants for different degrees of subcooling. He used the liquid suction heat exchanger for the different degree of subcooling and said that subcooling the refrigerant tends to prevent evaporation gases from forming on the throttle. From the experiment demonstrated by him, the effectiveness of LSHE increases with the increase of the degree of subcooling. It proved that the mixture of R290 and R600a in the ratio 50:50 in a refrigeration system has the highest effectiveness of LSHE compared to other refrigerants