International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Experimental Study of Performance AC Split R32 Retrofitted with R290 at 50% Mass

Abstract

Split air conditioners are now widely used by the general public as air conditioners, but the refrigerants used, one of which is the refrigerant R32, are still not environmentally friendly. The AC machine used in this study uses R32 before replacing it with R290, which has a capacity of 1 PK and is installed in a duct. The purpose of this research is to evaluate the performance of the low-GWP refrigerant R290. The mass of R290 charged to the AC engine is 50%, and temperature variations resulted in a 40.24 percent reduction in power consumption from R290 to R32. R290 has a 34.33 percent lower cooling capacity than R32 due to the lower cooling capacity, which affects the compressor's lower power consumption. From R290 to R32, the COP decreased by 29.74%. Overall, the performance of replacing R32 refrigerant with R290 refrigerant has not been optimized.

Country : Indonesia

1 Rizka Ulum2 Berkah Fajar3 Tony Suryo Utomo

  1. Mechanical Engineering, Diponegoro University, Semarang, Indonesia
  2. Mechanical Engineering, Diponegoro University, Semarang, Indonesia
  3. Mechanical Engineering, Diponegoro University, Semarang, Indonesia

IRJIET, Volume 6, Issue 7, July 2022 pp. 8-11

doi.org/10.47001/IRJIET/2022.607002

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