Exergy and Energy Analysis of Low GWP Refrigerants for Ultra-Low Temperature Applications: Recent Advances and Challenges

EasyChair Preprint 15201

Abstract

The quest for environmentally benign refrigerants has intensified due to the detrimental effects of conventional high global warming potential (GWP) fluids on climate change. This study provides recent advances in exergy and energy analysis of several low GWP refrigerants such as R-41, R-1132a, R-1234yf, R-170, and R-1150 in comparison to traditional high GWP refrigerants (R-508A/B and R-23) for ultralow-temperature applications because exergy and energy analysis is crucial in evaluating the efficiency and sustainability of refrigeration systems. The analysis employs thermodynamic principles to evaluate these refrigerants' efficiency and environmental impact under varying operating conditions. Key parameters such as exergy destruction, energy consumption, and coefficient of performance (COP) are assessed for these alternative refrigerants' feasibility, effectiveness, overall performance, and sustainability. This study explores the trade-offs between energy efficiency and environmental impact, aiming to provide insights into optimal refrigerant selection for different low-temperature cooling requirements. Through comprehensive exergy and energy analyses, this research contributes to understanding how low GWP refrigerants can mitigate environmental concerns while maintaining or improving system efficiency for ultralow-temperature refrigeration applications.

Keyphrases: Auto-cascade refrigeration system, Energy, Exergy, Low GWP refrigerant, Ultra-low temperature, coefficient of performance

@booklet{EasyChair:15201,
  author    = {Abhishek Kumar and Shou-Yin Yang},
  title     = {Exergy and Energy Analysis of Low GWP Refrigerants for Ultra-Low Temperature Applications: Recent Advances and Challenges},
  howpublished = {EasyChair Preprint 15201},
  year      = {EasyChair, 2024}}