Experimental Study of Hydrofluoroolifines as a Drop in Replacement for R134a in Vapour Compression Refrigeration System

  • Sandip P. Chavhan, Narendra S.Poonawala, Jagannath S.Gawande

Abstract

HFC134a is a greenhouse gas that is thousands of times more powerful than CO2. HFC 134a poses an
increasing threat to climate change as its volume in the atmosphere increases by 10-15% per year If no
measures are taken, HFC will share 9 to 19 percent of total CO2 emissions by 2050. In developing
countries like India HFC 134a share bout 50% of their emissions due to refrigeration and 30% due to
heating, ventilation, air conditioning compared to develop countries. Due to global warming from the
south to the northern pole, the average temperature is increased by 10C. HFC 134a has 1410 times as
much energy (GWP) as carbon dioxide that promotes the replacement of HFC134a. HFC 134a has a
median life of 14 years. HFO has 4 times as much energy (GWP) as carbon dioxide and characteristics
similar to HFC 134a. HFO has only 11 atmospheric atmospheres. HFO-1234ze and HFO-1234yf show
promising alternatives to HFC 134a. This paper provides an analysis of the performance of the HFO-
1234ze and HFO1234yf refrigerants instead of HFC 134a in the VCR system for many operating
conditions. In this work the performance of HFC 134a as baseline is compared by measuring
refrigeration effect, compressor work, coefficient of performance, pressure ratio mass flow rate, power
per ton of refrigeration, volumetric refrigeration capacity. The experimental result showed that cooling
capacity of HFO 1234yf has good thermal performance The test result showed that the cooling capacity
of HFO 1234yf has good thermal performance (viz. pressure ration, discharge temperature, specific
volume etc.) instead of HFC 134a. The efficiency of HFO- 1234 is up 8% higher than HFC 134a.

Published
2020-05-20
How to Cite
Sandip P. Chavhan, Narendra S.Poonawala, Jagannath S.Gawande. (2020). Experimental Study of Hydrofluoroolifines as a Drop in Replacement for R134a in Vapour Compression Refrigeration System. International Journal of Advanced Science and Technology, 29(7), 2749-2762. Retrieved from http://sersc.org/journals/index.php/IJAST/article/view/18148
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Articles