Evaluation of Split-Wall Air Conditioning Performance Using Eco-Friendly Refrigerant and a Custom-Built Data Logger

DOI

10.2991/978-94-6463-878-3_18How to use a DOI?

Keywords

Custom-Built Data Logger; Evaluation and Performance; Split-Wall Air Conditioning

Abstract

The purpose of this research is to evaluate the performance of a split-wall air conditioning unit utilizing a custom-built data logger. An R290, 2.5 kW split-wall air conditioning unit was installed for this investigation. A custom-built data logger was employed to measure all the evaluation parameters. This data logger was built with an ATmega 2560 microcontroller and integrated with several sensors compacted into one device. The experimental results demonstrate that the Mean Absolute Error (MAE) values for temperature measurement calibrations were 0.45℃ for sensor X1 and 0.325℃ for sensor X2, respectively. Both sensors exhibited exceptional accuracy and reliability, with their calibration errors falling well within the acceptable tolerance limits established by industry standards. The superior performance of sensor X2, with a lower MAE value, indicates enhanced precision in temperature measurement applications, while sensor X1 also maintained satisfactory accuracy levels for the intended experimental requirements. Regarding system performance, the Coefficient of Performance (COP) analysis revealed that the air conditioning unit achieved a COP value of 3.56. The measured COP of 3.56 indicates that the system generates approximately 3.56 units of cooling output for each unit of electrical energy input, demonstrating remarkable energy efficiency and thermodynamic optimization.

Copyright

© 2025 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  - Daud Simon Anakottapary
AU  - I Gede Artha Negara
AU  - I Nyoman Gede Baliarta
AU  - Ketut Bangse
AU  - I Wayan Sutina
PY  - 2025
DA  - 2025/10/31
TI  - Evaluation of Split-Wall Air Conditioning Performance Using Eco-Friendly Refrigerant and a Custom-Built Data Logger
BT  - Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)
PB  - Atlantis Press
SP  - 151
EP  - 159
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-878-3_18
DO  - 10.2991/978-94-6463-878-3_18
ID  - Anakottapary2025
ER  -