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Phase change materials-assisted heat flux reduction: experiment and numerical analysis

Akeiber, Hussein J. and Hosseini, Seyed Ehsan and Wahid, Mazlan A. and M. Hussen, Hasanen and Th. Mohammad, Abdulrahman (2016) Phase change materials-assisted heat flux reduction: experiment and numerical analysis. Energies, 9 (1). pp. 1-17. ISSN 1996-1073

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Official URL: http://dx.doi.org/10.3390/en9010030

Abstract

Phase change materials (PCM) in the construction industry became attractive because of several interesting attributes, such as thermo-physical parameters, open air atmospheric condition usage, cost and the duty structure requirement. Thermal performance optimization of PCMs in terms of proficient storage of a large amount of heat or cold in a finite volume remains a challenging task. Implementation of PCMs in buildings to achieve thermal comfort for a specific climatic condition in Iraq is our main focus. From this standpoint, the present paper reports the experimental and numerical results on the lowering of heat flux inside a residential building using PCM, which is composed of oil (40%) and wax (60%). This PCM (paraffin), being plentiful and cost-effective, is extracted locally from waste petroleum products in Iraq. Experiments are performed with two rooms of identical internal dimensions in the presence and absence of PCM. A two-dimensional numerical transient heat transfer model is developed and solved using the finite difference method. A relatively simple geometry is chosen to initially verify the numerical solution procedure by incorporating in the computer program two-dimensional elliptic flows. It is demonstrated that the heat flux inside the room containing PCM is remarkably lower than the one devoid of PCM

Item Type:Article
Uncontrolled Keywords:phase change material (PCM), wax, melting temperature, heat flux
Subjects:A General Works
ID Code:70213
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:12 Aug 2018 11:56
Last Modified:12 Aug 2018 11:56

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