Eco-Friendly Refrigerants as Substitutes for HFC134a - a Review

International Journal of Mechanical Engineering

© 2017 by SSRG - IJME Journal

Volume 4 Issue 2

Year of Publication : 2017

Authors : Deepak Paliwal

10.14445/23488360/IJME-V4I2P103

How to Cite?

Deepak Paliwal, "Eco-Friendly Refrigerants as Substitutes for HFC134a - a Review," SSRG International Journal of Mechanical Engineering, vol. 4,  no. 2, pp. 12-22, 2017. Crossref, https://doi.org/10.14445/23488360/IJME-V4I2P103

Abstract:

In developing country like India, most of the VCR systems based on halogenated refrigerant are used due to its excellent properties. How-ever, the halogenated refrigerants having adverse environmental impacts such as ODP and GWP. Hence conversion of such systems to eco-friendly ones will be a major thrust area for refrigeration sector in the time to come. As and when an existing system of R134a has to be recharged it is suggested to retrofit the system with new/natural and alternative refrigerants to full fill the objectives of the Montreal and Kyoto protocols. Presently, hydrocarbon mixtures and pure hydrocarbons are available in market to replace R134a, but the optimum ratio and mass fraction to be used for better and safe performance of the system is given by only few researchers. This paper reviews the various theoretical and experimental studies carried out around the world with eco-friendly HC and HCM refrigerants, which are going to be the promising alternatives. The problems with HCM refrigerants when they use as a retrofitted are also analyzed.

Keywords:

Environment friendly Refrigerant, R134a, HCM.

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