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Effect of pore structure on the thermal stability of shape-stabilized phase change materials.

To attain the increasing demand for energy in addition with an aim of resolving environmental concerns, a transition from traditional energy systems to renewable resources is crucial. However, renewable energy needs the proper mechanism of harvesting on availability and suitable storage capabilities...

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Main Authors: Mandal, Soumen, Ishak, Shafiq, Mohd. Ariffin, Mohd Azreen, Lee, Dong-Eun
Format: Article
Language:English
Published: Elsevier Editora Ltda 2023
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/106877/1/ShafiqIshak2023_EffectofPoreStructureontheThermalStabilityofShape.pdf
http://eprints.utm.my/106877/
http://dx.doi.org/10.1016/j.jmrt.2023.05.217
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spelling my.utm.1068772024-08-01T05:45:17Z http://eprints.utm.my/106877/ Effect of pore structure on the thermal stability of shape-stabilized phase change materials. Mandal, Soumen Ishak, Shafiq Mohd. Ariffin, Mohd Azreen Lee, Dong-Eun TA Engineering (General). Civil engineering (General) To attain the increasing demand for energy in addition with an aim of resolving environmental concerns, a transition from traditional energy systems to renewable resources is crucial. However, renewable energy needs the proper mechanism of harvesting on availability and suitable storage capabilities until it's utilizable necessity. Therefore, effective and consistent energy storage frameworks are crucial for the utilization of stowed renewable energy at a maximum capacity. Pondering that, this study has been focused on the utilization of biochars for efficacious thermal energy storage applications. The shape stabilization efficiency of commercial softwood biochar (EB) has been compared with synthesized bamboo biochar (BA). Both biochars have demonstrated porous and channel-like morphologies and the BET surface areas are measured to be 41.1676 and 9.7213 m2/g, respectively. Paraffin as a phase change material (PCM) is melted and permeated into the biochars to synthesize the biochar composite PCMs. Paraffin to biochar in a 3:1 ratio has been realized as the optimum for both composite PCMs. Maximum heat charging and discharging enthalpies are found to be 96.71 and 94.97 J/g for 1:3 EB-PCM as well as 77.78 and 75.06 J/g for 1:3 BA-PCM composites, respectively. The highest encapsulation ratios are calculated to be 53.49 and 43.02% for 1:3 EB-PCM and 1:3 BA-PCM composites, respectively. Although the enthalpies and encapsulation ratios are found higher in EB-PCM composites, BA-PCM composites have demonstrated superior thermal stability owing to the smaller pore sizes and that has resulted in higher surface tension, capillary action, and effective surface functionalities. Elsevier Editora Ltda 2023-07-01 Article PeerReviewed application/pdf en http://eprints.utm.my/106877/1/ShafiqIshak2023_EffectofPoreStructureontheThermalStabilityofShape.pdf Mandal, Soumen and Ishak, Shafiq and Mohd. Ariffin, Mohd Azreen and Lee, Dong-Eun (2023) Effect of pore structure on the thermal stability of shape-stabilized phase change materials. Journal of Materials Research and Technology, 25 (NA). pp. 465-479. ISSN 2238-7854 http://dx.doi.org/10.1016/j.jmrt.2023.05.217 DOI:10.1016/j.jmrt.2023.05.217
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Mandal, Soumen
Ishak, Shafiq
Mohd. Ariffin, Mohd Azreen
Lee, Dong-Eun
Effect of pore structure on the thermal stability of shape-stabilized phase change materials.
description To attain the increasing demand for energy in addition with an aim of resolving environmental concerns, a transition from traditional energy systems to renewable resources is crucial. However, renewable energy needs the proper mechanism of harvesting on availability and suitable storage capabilities until it's utilizable necessity. Therefore, effective and consistent energy storage frameworks are crucial for the utilization of stowed renewable energy at a maximum capacity. Pondering that, this study has been focused on the utilization of biochars for efficacious thermal energy storage applications. The shape stabilization efficiency of commercial softwood biochar (EB) has been compared with synthesized bamboo biochar (BA). Both biochars have demonstrated porous and channel-like morphologies and the BET surface areas are measured to be 41.1676 and 9.7213 m2/g, respectively. Paraffin as a phase change material (PCM) is melted and permeated into the biochars to synthesize the biochar composite PCMs. Paraffin to biochar in a 3:1 ratio has been realized as the optimum for both composite PCMs. Maximum heat charging and discharging enthalpies are found to be 96.71 and 94.97 J/g for 1:3 EB-PCM as well as 77.78 and 75.06 J/g for 1:3 BA-PCM composites, respectively. The highest encapsulation ratios are calculated to be 53.49 and 43.02% for 1:3 EB-PCM and 1:3 BA-PCM composites, respectively. Although the enthalpies and encapsulation ratios are found higher in EB-PCM composites, BA-PCM composites have demonstrated superior thermal stability owing to the smaller pore sizes and that has resulted in higher surface tension, capillary action, and effective surface functionalities.
format Article
author Mandal, Soumen
Ishak, Shafiq
Mohd. Ariffin, Mohd Azreen
Lee, Dong-Eun
author_facet Mandal, Soumen
Ishak, Shafiq
Mohd. Ariffin, Mohd Azreen
Lee, Dong-Eun
author_sort Mandal, Soumen
title Effect of pore structure on the thermal stability of shape-stabilized phase change materials.
title_short Effect of pore structure on the thermal stability of shape-stabilized phase change materials.
title_full Effect of pore structure on the thermal stability of shape-stabilized phase change materials.
title_fullStr Effect of pore structure on the thermal stability of shape-stabilized phase change materials.
title_full_unstemmed Effect of pore structure on the thermal stability of shape-stabilized phase change materials.
title_sort effect of pore structure on the thermal stability of shape-stabilized phase change materials.
publisher Elsevier Editora Ltda
publishDate 2023
url http://eprints.utm.my/106877/1/ShafiqIshak2023_EffectofPoreStructureontheThermalStabilityofShape.pdf
http://eprints.utm.my/106877/
http://dx.doi.org/10.1016/j.jmrt.2023.05.217
_version_ 1806442421927542784
score 13.211869

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