Effect of Polyethylene Glycol and Activated Carbon Macroparticles on Thermal Conductivity of Paraffin Wax for Thermal Storage Applications

Lwin Phone Myat; Muhammad Shakeel Ahmad; Indra Neel Pulidindi; Hamed Algarni; Laveet Kumar; Abul Kalam; S. Wageh; Adarsh Kumar Pandey; Altaf Akbar; Jeyraj Selvaraj

doi:10.3390/polym14194181

Effect of Polyethylene Glycol and Activated Carbon Macroparticles on Thermal Conductivity of Paraffin Wax for Thermal Storage Applications

Lwin Phone Myat, Muhammad Shakeel Ahmad, Indra Neel Pulidindi, Hamed Algarni, Laveet Kumar, Abul Kalam, S. Wageh, Adarsh Kumar Pandey, Altaf Akbar, Jeyraj Selvaraj

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5 Scopus citations

Abstract

Low thermal conductivity is the major obstacle for the wide range utilization of phase change materials (PCMs), especially organic PCMs, for most practical applications in thermal engineering. This study investigates the potential of enhancing the charging and discharging rates of organic PCM (RT44HC) by introducing polyethylene glycol (PEG) and activated carbon macroparticles (ACMPs). Different concentrations of PEG and ACMPs ranging from 0.3 wt% to 2 wt% were tested separately. The optimized concentrations found were used as dual reinforcements to attain the highest possible thermal conductivity. The specimens were tested for a complete charging–discharging cycle using an improvised thermal apparatus. Use of ACMP alone resulted in a minimal reduction in complete charging–discharging time due to the settlement of ACMPs at the bottom after 2–3 heating–cooling cycles. However, the addition of PEG with ACMPs exhibited a reduction in charging–discharging time due to the formation of a stable dispersion. PEG served as a stabilizing agent for ACMPs. The lowest charging–discharging time of 180 min was exhibited by specimens containing 1 wt% PEG and 0.5 wt% ACMPs which is 25% lower compared to bare PCM.

Original language	English
Article number	4181
Journal	Polymers
Volume	14
Issue number	19
DOIs	https://doi.org/10.3390/polym14194181
State	Published - 5 Oct 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022 by the authors.

Funding

This research was funded by King Khalid University through Research Center for Advanced Materials Science (RCAMS) and Japan International Cooperation Agency for AUN/SEED-Net on Collaboration Education Program UM CEP 1901, Japan ASEAN Collaborative Education Program (JACEP) under grant no: RCAMS/KKU/0010/21 and UM CEP 1901. And The APC was funded by King Khalid University and Jesus’s Scientific Consultancy of Industrial and Academic Research. The authors acknowledge support and funding of King Khalid University through Research Center for Advanced Materials Science (RCAMS) under grant no: RCAMS/KKU/0010/21 and Japan International Cooperation Agency for AUN/SEED-Net on Collaboration Education Program UM CEP 1901, Japan ASEAN Collaborative Education Program (JACEP). The authors would also like to thank the technical and financial assistance of Higher Institution Centre of Excellence (HICoE) Program Research Grant, UMPEDAC—2020 (MOHE HICOE—UMPEDAC), Ministry of Education Malaysia, TOP100 UMPEDAC, RU003-2020, University of Malaya.

Funders	Funder number
Japan International Cooperation Agency for AUN/SEED-Net on Collaboration Education Program UM	CEP 1901
Jesus’s Scientific Consultancy of Industrial and Academic Research
MOHE HICOE
Research Center for Advanced Materials Science	RCAMS/KKU/0010/21
Ministry of Higher Education, Malaysia	RU003-2020, TOP100
Universiti Malaya
King Khalid University
UM Power Energy Dedicated Advanced Centre

Keywords

activated carbon macroparticles (ACMPs)
organic PCM (RT44HC)
phase hange materials (PCM)
polyethylene glycol (PEG)

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10.3390/polym14194181

Cite this

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abstract = "Low thermal conductivity is the major obstacle for the wide range utilization of phase change materials (PCMs), especially organic PCMs, for most practical applications in thermal engineering. This study investigates the potential of enhancing the charging and discharging rates of organic PCM (RT44HC) by introducing polyethylene glycol (PEG) and activated carbon macroparticles (ACMPs). Different concentrations of PEG and ACMPs ranging from 0.3 wt% to 2 wt% were tested separately. The optimized concentrations found were used as dual reinforcements to attain the highest possible thermal conductivity. The specimens were tested for a complete charging–discharging cycle using an improvised thermal apparatus. Use of ACMP alone resulted in a minimal reduction in complete charging–discharging time due to the settlement of ACMPs at the bottom after 2–3 heating–cooling cycles. However, the addition of PEG with ACMPs exhibited a reduction in charging–discharging time due to the formation of a stable dispersion. PEG served as a stabilizing agent for ACMPs. The lowest charging–discharging time of 180 min was exhibited by specimens containing 1 wt% PEG and 0.5 wt% ACMPs which is 25% lower compared to bare PCM.",

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AU - Pulidindi, Indra Neel

AU - Algarni, Hamed

AU - Kumar, Laveet

AU - Kalam, Abul

AU - Wageh, S.

AU - Pandey, Adarsh Kumar

AU - Akbar, Altaf

AU - Selvaraj, Jeyraj

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Effect of Polyethylene Glycol and Activated Carbon Macroparticles on Thermal Conductivity of Paraffin Wax for Thermal Storage Applications

Abstract

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Keywords

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