Refrigerant progression - an investigation into eco-sustainability with evolution and viability of fourth generation refrigerants

Global warming is one of the most pressing issues world facing today. The refrigeration sector, major contributors to global warming, needs follow a methodological approach address this issue. This paper evaluates overall impact along with thermodynamic performance different generations refrigerants in cascade system. main aim comparative study present comprehensive outlook on environmental refrigerants. A perspective refrigerant selection reduce also discussed. R600a, R290, R12, R22, R134a, R152a, R245fa, R1234yf, and R1234ze are used high-temperature circuit, while R32 low-temperature circuit. Exergy energy analyses done for performance, total equivalent (TEWI) assessment carried out show produced. While couple R152a/R32 shows best maximum COP, minimum exergy destruction, second law efficiency, R1234yf/R32 displays worst performance. R12/R32 TEWI R290/R32 TEWI. first-generation found be environmentally friendly followed by third fourth. Fourth-generation have highest indirect emissions, which make their comparable R134a. It concluded that plays significant role reducing as emissions account part TEWI, therefore, potential cannot only basis selection. suggests R152a can better alternatives.