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All Journal JTRM (Jurnal Teknologi dan Rekayasa Manufaktur)
Ramadhan, Fitto
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Kaji Eksperimental Retrofit R-134a Menjadi R-600a Terhadap Kinerja Sistem Cold Handling Unit Utari, Listya; Ramadhan, Fitto; Falahuddin, Muhamad Anda; Pramudantoro, Triaji Pangripto
JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) Vol 8 No 1 (2026): Volume: 8 | Nomor: 1 | April 2026
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48182/jtrm.v8i1.267

Abstract

The refrigeration industry continues to grow amid global challenges related to the environmental impact of refrigerant use. One of the commonly used refrigerants today is R-134a, but this refrigerant has a global warming potential (GWP) of 1430. As an alternative, R-600a is considered because it has a very low GWP of only 3, and has good compatibility with R-134a-based systems. This study aims to analyze the performance of the refrigeration system after retrofitting from R-134a to R-600a. Tests were conducted at two condensing temperature variations: 33.29°C and 35.29°C. The results show that at 33.29°C, COP increased by 30%, efficiency increased by 12%, and electricity consumption decreased by 32%. At 35.29°C, COP increased by 22%, efficiency by 6%, and electricity consumption decreased by 30%. In addition, R-600a requires only 50% of the refrigerant mass compared to R-134a. A temperature of 33.29°C was considered the optimal condition with the best performance and faster cooling time. These results support the potential of R-600a as an environmentally friendly alternative refrigerant.
Co-Authors Listya Utari, Listya Muhamad Anda Falahuddin Pramudantoro, Triaji Pangripto