Affiliation:
1. Mechanical Engineering Department, Koneru Lakshmaiah Education Foundation, Green Fields, Vaddeswaram, Guntur, Andhra Pradesh 522502, India
Abstract
The third-generation refrigerants belonging to hydrofluorocarbons (HFCs) do not contribute to ozone depletion. However, HFCs are listed as greenhouse gases by Kyoto Protocol because of their relatively high global-warming potential (GWP). At present the research is now mainly focused on refrigerants with zero ozone depletion potential (ODP) and less GWP, which are termed as Fourth generation refrigerants. This paper analyzes the advancement in refrigerants, and presented the different options in choosing a refrigerant with respect to international agreements to curb the stratospheric ozone depletion and global warming. The hydrofluoroolefins (HFOs) i.e., fourth generation refrigerants are available in limited quantities and also their performance is not completely tested in different applications. Hence this paper aims at assessing the performance of fourth generation refrigerants in terms of their mass flow rate requirement and COP for a specified cooling load and compared with the existing third generation refrigerants in usage. It is found that fourth generation refrigerants COP is low and mass flow rate and power requirements are high. However, HFO1234ze(E) can replace R134a as its performance is almost similar to R134a with an added advantage of low GWP.
Publisher
Springer Science and Business Media LLC
Subject
Fluid Flow and Transfer Processes,Renewable Energy, Sustainability and the Environment,Control and Systems Engineering
Reference17 articles.
1. The next generation of refrigerants – Historical review, considerations, and outlook
2. Arora and R. Chandra , Mechanical Vapor Compression Refrigeration, Refrigeration and Air Conditioning (PHI Learning, New Delhi, India), p. 3.
3. From the Periodic Table to Production
Cited by
78 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献