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

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DOI Prefix: 10.47001/IRJIET

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

Rizka UlumMechanical Engineering, Diponegoro University, Semarang, IndonesiaBerkah FajarMechanical Engineering, Diponegoro University, Semarang, IndonesiaTony Suryo UtomoMechanical Engineering, Diponegoro University, Semarang, Indonesia

Vol 6 No 7 (2022): Volume 6, Issue 7, July 2022 | Pages: 8-11

International Research Journal of Innovations in Engineering and Technology

OPEN ACCESS | Research Article | Published Date: 04-07-2022

doi Logo doi.org/10.47001/IRJIET/2022.607002

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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.

Keywords

Energy Conversion, Air Conditioning, R32, R290


Citation of this Article

Rizka Ulum, Berkah Fajar, Tony Suryo Utomo, “Experimental Study of Performance AC Split R32 Retrofitted with R290 at 50% Mass” Published in International Research Journal of Innovations in Engineering and Technology - IRJIET, Volume 6, Issue 7, pp 8-11, July 2022. Article DOI https://doi.org/10.47001/IRJIET/2022.607002

Licence Copyright (c) 2026 International Research Journal of Innovations in Engineering and Technology creative common licence This work is licensed under Creative common Attribution Non Commercial 4.0 Internation Licence
References
  1. Althouse AD. Modern Refrigeration and Air Conditioning. 2004.
  2. Stoecker WF, Jones JW. Refrigeration and Air Conditioning. McGraw-Hill, inc. 1982.
  3. Powell RL. CFC phase-out: Have we met the challenge? J Fluor Chem. 2002;114(2):237–50.
  4. Choudhari CS. Performance Investigation of Natural Refrigerant R290 as a Substitute to R22 in Refrigeration Systems. Energy Procedia. 2017;109(November 2019):346–52.
  5. ECOFRIG. Safe Conversion and Servicing Practices for Refrigeration Appliances using Hydrocarbon Refrigerants. 1999.
  6. Calm JM, Domanski PA. R-22 replacement status. ASHRAE J. 2004;46(8):29–39.
  7. Corberán JM. Review of standards for the use of hydrocarbon refrigerants in A/C, heat pump and refrigeration equipment. Int J Refrig. 2008;31(4):748–56.
  8. Berkah Fajar TK, Restu Bagas P, Ukhi S, Alhamid MI, Lubis A. Energy and exergy analysis of an R410A small vapor compression system retrofitted with R290. Case Stud Therm Eng. 2020;21:100671.
  9. Wu JH. Experimental performance study of a small wall room air conditioner retrofitted with R290 and R1270. 2012.
  10. Zhou G, Zhang Y. Performance of a split-type air conditioner matched with coiled adiabatic capillary tubes using HCFC22 and HC290. Appl Energy. 2010;87(5):1522–8.
  11. Temaja IW. KAJIAN EKSPERIMENTAL CAMPURAN R-32 / R-290 PENGGANTI REFRIGERAN R-32 PADA AC SPLIT DOMESTIK. 2018.

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