Comparative Experimental Study of Low GWP Alternative for R134a in a Walk-in Cold Room. | ||||
| MEJ- Mansoura Engineering Journal | ||||
| Article 7, Volume 41, Issue 1, March 2016, Page 31-40 PDF (951.53 K) | ||||
| Document Type: Research Studies | ||||
| DOI: 10.21608/bfemu.2020.99362 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Al-saeed Khalil* ; A. E. Kabeel; M. M. Bassuoni; M. S. Raslan | ||||
| Tanta University, Faculty of Engineering, Mechanical Power Dept., Egypt. | ||||
| Abstract | ||||
| The environmental problems induced by the ongoing increase in the global worming potential (GWP) pose a significant interest among researchers. It was found that, the currently used refrigerants are with high GWP [1], so that it becomes necessary to search for alternatives to these refrigerants that can properly operate on the same systems but with low GWP. Therefore a walk-in cold room working with vapor compression cycle is constructed to compare the performance of the high GWP refrigerant R134a to low GWP refrigerant R1234ze in a trail to provide a solution to the problem of high GWP of refrigerants currently used in cold rooms. The results obtained in this study have shown that, the cooling capacity of R1234ze was lower than that of R134a by 2% to 13%. The lowest evaporating temperature that could be reached for R1234ze is -13 oC while the lowest temperature of R134a is – 30 oC. Regarding the power consumption, R1234ze has lower power consumption than R134a by about 9% to 15% therefore it can be concluded that R 1234ze can be recommended to be used at high and medium evaporating temperature after carrying out the modification on the refrigeration cycle | ||||
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