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Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling

In the present study, the natural convection flow of water with Nano-encapsulated phase change material (NPCM) was simulated inside an insulated chamber, which a pair of pipes were considered as a heater and cooler sources with the boundary condition of uniform temperature. The NPCM's core was...

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Main Authors: Cao, Yan, Farouk, Naeim, Ayed, Hamdi, Aly, Ayman A., Jarad, Fahd, Dahari, Mahidzal, Wae-hayee, Makatar, Saleh, B.
Format: Article
Published: Elsevier 2022
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.um.edu.my/43071/
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spelling my.um.eprints.430712023-09-06T01:29:40Z http://eprints.um.edu.my/43071/ Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling Cao, Yan Farouk, Naeim Ayed, Hamdi Aly, Ayman A. Jarad, Fahd Dahari, Mahidzal Wae-hayee, Makatar Saleh, B. TK Electrical engineering. Electronics Nuclear engineering In the present study, the natural convection flow of water with Nano-encapsulated phase change material (NPCM) was simulated inside an insulated chamber, which a pair of pipes were considered as a heater and cooler sources with the boundary condition of uniform temperature. The NPCM's core was made of n-nonadecane with melting temperature of 30.44 degrees C. This core has ability to change the liquid-solid phase to transfer heat between the heater and the cooler sources. Current simulation was steady state and was solved by SIMPLE algorithm based on FVM to investigate the effects of Rayleigh number, volume fraction and location of phase change zone on the convective heat transfer coefficient. Observations showed that, phase change of NPCM occurs at low Rayleigh numbers but had no effect on the convective heat transfer coefficient, but it was directly related to the thermal conductivity of mixture. Moreover, adding volume fraction of NPCM 0.02 into water increased the convective heat transfer coefficient by 10.43%, 19.1% and 18.3% compared to pure water for Rayleigh numbers 10(2), 10(4), and 10(6), respectively. Elsevier 2022-02 Article PeerReviewed Cao, Yan and Farouk, Naeim and Ayed, Hamdi and Aly, Ayman A. and Jarad, Fahd and Dahari, Mahidzal and Wae-hayee, Makatar and Saleh, B. (2022) Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling. Case Studies in Thermal Engineering, 30. ISSN 2214-157X, DOI https://doi.org/10.1016/j.csite.2022.101770 <https://doi.org/10.1016/j.csite.2022.101770>. 10.1016/j.csite.2022.101770
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Cao, Yan
Farouk, Naeim
Ayed, Hamdi
Aly, Ayman A.
Jarad, Fahd
Dahari, Mahidzal
Wae-hayee, Makatar
Saleh, B.
Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling
description In the present study, the natural convection flow of water with Nano-encapsulated phase change material (NPCM) was simulated inside an insulated chamber, which a pair of pipes were considered as a heater and cooler sources with the boundary condition of uniform temperature. The NPCM's core was made of n-nonadecane with melting temperature of 30.44 degrees C. This core has ability to change the liquid-solid phase to transfer heat between the heater and the cooler sources. Current simulation was steady state and was solved by SIMPLE algorithm based on FVM to investigate the effects of Rayleigh number, volume fraction and location of phase change zone on the convective heat transfer coefficient. Observations showed that, phase change of NPCM occurs at low Rayleigh numbers but had no effect on the convective heat transfer coefficient, but it was directly related to the thermal conductivity of mixture. Moreover, adding volume fraction of NPCM 0.02 into water increased the convective heat transfer coefficient by 10.43%, 19.1% and 18.3% compared to pure water for Rayleigh numbers 10(2), 10(4), and 10(6), respectively.
format Article
author Cao, Yan
Farouk, Naeim
Ayed, Hamdi
Aly, Ayman A.
Jarad, Fahd
Dahari, Mahidzal
Wae-hayee, Makatar
Saleh, B.
author_facet Cao, Yan
Farouk, Naeim
Ayed, Hamdi
Aly, Ayman A.
Jarad, Fahd
Dahari, Mahidzal
Wae-hayee, Makatar
Saleh, B.
author_sort Cao, Yan
title Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling
title_short Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling
title_full Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling
title_fullStr Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling
title_full_unstemmed Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling
title_sort heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: a numerical modeling
publisher Elsevier
publishDate 2022
url http://eprints.um.edu.my/43071/
_version_ 1778161692561113088
score 13.211869

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