Performance of Small Commercial AC System with R-32 Applied for Educational Building in Tropical Country: A Thermodynamic Simulation

DOI

10.2991/978-94-6463-284-2_66How to use a DOI?

Keywords

Small Commercial AC System; R-32; Educational Building; Tropical Country; Thermodynamic Simulation

Abstract

A numerical evaluation on the performance of small commercial AC systems using R-32 as their refrigerant is presented. The evaluation is specifically applied for educational buildings in Bali Province, Indonesia. A digital model was developed. The model was established in Engineering Equation Solver (EES) program called U-CoolS V.1.12, which is a standalone computer program. The model has been validated using data specified by AC manufacturers and then it was used to perform digital evaluation of the AC system based on ambient temperature of the Bali Province, Indonesia. Effects of the condenser and evaporator temperatures on the compressor efficiency and AC system energy consumption were simulated. The results showed a strong effect of condenser and evaporator temperatures on the performance of the compressor and energy use of the AC system. The compressor power increases significantly for about 2.1%, system cooling capacity decreases by 1.8%, COP and EER decreases by 3.9% when the condenser temperature increases by 1 °C. While 1 °C increase of the evaporator temperature can increase power consumption of the compressor of 0.31%, improve the system cooling capacity by 4.4% as well as increase the system COP and EER of about 4.1%. The evaluation also showed that the performance of the split AC system was very good with COP range from 3.27 to 5.95. These finding implicate that R-32 has the potential to be a refrigerant for small commercial split-AC systems.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - I Nyoman Suamir
AU  - I Wayan Adi Subagia
AU  - I Dewa Made Susila
AU  - Ketut Bangse
AU  - Adi Winarta
PY  - 2023
DA  - 2023/11/09
TI  - Performance of Small Commercial AC System with R-32 Applied for Educational Building in Tropical Country: A Thermodynamic Simulation
BT  - Proceedings of the 4th Borobudur International Symposium on Science and Technology 2022 (BIS-STE 2022)
PB  - Atlantis Press
SP  - 604
EP  - 613
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-284-2_66
DO  - 10.2991/978-94-6463-284-2_66
ID  - Suamir2023
ER  -