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 Retrofit AC Inverter Performance Based on R32 and R410a to R1270

Hendar WirawanMaster of Energy, Graduate School, Diponegoro University, Semarang, IndonesiaBerkah Fajar TKProfessor, Department of Mechanical Engineering, Diponegoro University, Semarang, IndonesiaMSK Tony Suryo UtomoDepartment of Mechanical Engineering, Diponegoro University, Semarang, Indonesia

Vol 7 No 4 (2023): Volume 7, Issue 4, April 2023 | Pages: 86-98

International Research Journal of Innovations in Engineering and Technology

OPEN ACCESS | Research Article | Published Date: 26-04-2023

doi Logo doi.org/10.47001/IRJIET/2023.704014

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Abstract

In this study, an overview of energy performance was obtained from the comparison of refrigerants (R32 to R1270 and R410a to R1270) in split inverter AC equipment. R32 testing was carried out with temperature settings of 16oC and 27oC while R410a was carried out with temperature settings of 18oC and 27oC. At each temperature setting, the cooling load is carried out under conditions using a heater and without loading. In this analysis, a comparison of energy performance and energy efficiency is carried out using the VDMA 24247-2 standard. The results of this study showed that the refrigeration effect value of R1270 was greater than R32 and R410a in all conditions. For compressor work, R1270 has a lower value than R32 and R410a because the value of ∆P (P2-P1) on R1270 is smaller so that the compressor work in the compression process is lower. In terms of system, the efficiency for R1270 in various conditions for replacing R32 is almost the same while for R1270 for replacing R410a, the highest efficiency is at a temperature setting of 16oC, namely at 100% mass condition. Based on the VDMA 24247-2 standard, the highest total energy efficiency value in R32 is 17.17% while in R1270 with a mass of 90%, 100% and 110% is 18.15%, 21.09% and 21.86%. The highest total energy efficiency value in R410a is 5.44% while in R1270 with a mass of 90%, 100% and 110% is 6.25%, 6.22%, 7.42%.

Keywords

R32, R410a, R1270, AC inverter, efficiency, VDMA 24247-2 standard, subcooling, superheat


Citation of this Article:

Hendar Wirawan, Berkah Fajar TK, MSK Tony Suryo Utomo, “Experimental Study of Retrofit AC Inverter Performance Based on R32 and R410a to R1270” Published in International Research Journal of Innovations in Engineering and Technology - IRJIET, Volume 7, Issue 4, pp 86-98, April 2023. Article DOI https://doi.org/10.47001/IRJIET/2023.704014
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
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