@inproceedings{379921806c2c4ffa9e76dd6077657d2c,
title = "Supermarket refrigeration system charge reduction using cascade systems",
abstract = "Multiplex direct expansion (DX) refrigeration systems using hydrofluorocarbon (HFC) refrigerants, commonly employed in supermarkets, have a significant direct impact on the environment due to high refrigerant charge and the high Global Warming Potential (GWP) of the refrigerant. Thus, cascade systems and secondary loop systems using carbon dioxide (CO2) are becoming popular alternatives to the multiplex DX system due to their reduced refrigeration charge and the lower GWP of the refrigerant. In this paper, a comparative study of the CO2 cascade systems along with the baseline R404A multiplex DX system is performed. Also, a Life Cycle Climate Performance (LCCP) comparison of these systems in various cities in China is performed. In this study, it was found that by switching from a R404A multiplex DX system to a combined secondary loop/cascade system, the refrigerant charge can be reduced by 40% with a small decrease in system performance (up to 2%), resulting in an overall decrease in lifetime greenhouse gas emissions.",
keywords = "Carbon dioxide, Cascade system, Global warming potential, R-404A, Refrigeration, Supermarket, Thermodynamics",
author = "V. Sharma and B. Fricke and P. Bansal",
year = "2014",
language = "English",
series = "11th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerants and Environmental Protection, GL 2014",
publisher = "International Institute of Refrigeration",
pages = "956--962",
editor = "Wangyang Hu and Guojun Zhao",
booktitle = "11th IIR Gustav Lorentzen Conference on Natural Refrigerants",
note = "11th IIR Gustav Lorentzen Conference on Natural Refrigerants, GL 2014 ; Conference date: 31-08-2014 Through 02-09-2014",
}
