Proceedings of the International Conference on Applied Science and Technology on Engineering Science 2025 (iCAST-ES 2025)

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Experimental Study on Energy-Efficient Cooler Box Using Virgin Coconut Oil as a Bio-PCM for Thermal Storage

Authors
I Wayan Adi Subagia1, *, Made Ery Arsana1, Luh Putu Ike Midiani1, I Made Rasta1
1Mechanical Engineering Department, Politeknik Negeri Bali, Kuta Selatan, Badung, Bali, 80364, Indonesia
*Corresponding author. Email: adisubagia@pnb.ac.id
Corresponding Author
I Wayan Adi Subagia
Available Online 31 December 2025.
DOI
10.2991/978-94-6463-926-1_84How to use a DOI?
Keywords
Energy Efficiency; Environmentally Friendly Cooler Box; Thermal Energy Storage; Thermoelectric Cooling System; VCO-based Bio-PCM
Abstract

This study presents the design and construction of a portable cooler box prototype based on green technology, utilizing Bio-PCM from Virgin Coconut Oil (VCO) as a thermal energy storage system. A thermoelectric cooling system is used to achieve high energy efficiency without conventional refrigerants that negatively impact the environment. Experimental testing was conducted to determine the thermal behavior of VCO during cooling and heating processes. The analysis results show that VCO has a phase change temperature range of 17.9–18.1 ℃ with significant latent heat release and absorption capacity. The prototype exhibits good temperature stability and is able to maintain low temperatures for longer. By integrating the thermoelectric system and VCO as Bio-PCM, the prototype can extend the cooling duration by up to 30% compared to conventional methods. This innovation has great potential for application in food, beverage, and vaccine storage systems, especially in tropical regions. The use of natural materials and refrigerant-free technology is a concrete step towards environmentally friendly and sustainable cooling solutions.

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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Volume Title
Proceedings of the International Conference on Applied Science and Technology on Engineering Science 2025 (iCAST-ES 2025)
Series
Advances in Engineering Research
Publication Date
31 December 2025
ISBN
978-94-6463-926-1
ISSN
2352-5401
DOI
10.2991/978-94-6463-926-1_84How to use a DOI?
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.

Cite this article

risenwbib
TY  - CONF
AU  - I Wayan Adi Subagia
AU  - Made Ery Arsana
AU  - Luh Putu Ike Midiani
AU  - I Made Rasta
PY  - 2025
DA  - 2025/12/31
TI  - Experimental Study on Energy-Efficient Cooler Box Using Virgin Coconut Oil as a Bio-PCM for Thermal Storage
BT  - Proceedings of the International Conference on Applied Science and Technology on Engineering Science 2025 (iCAST-ES 2025)
PB  - Atlantis Press
SP  - 752
EP  - 758
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-926-1_84
DO  - 10.2991/978-94-6463-926-1_84
ID  - Subagia2025
ER  -