An experimental study of a phase change storage system

This paper describes the heat transfer process and the movement of the solid-liquid interface when the energy is added to a PCM, paraffin wax, through a vertical wall heated under conditions of uniform heat flux and constant temperature. Experiments indicate that the initial mode of heat transfer...

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Main Authors:	Hawlader, Mohammad Nurul Alam, Smita, Panga
Format:	Book Chapter
Language:	English
Published:	IIUM Press 2011
Subjects:	TH Building construction
Online Access:	http://irep.iium.edu.my/20049/ http://irep.iium.edu.my/20049/ http://irep.iium.edu.my/20049/1/an_experimental_study_of_a_phase_-_C4.pdf

id	iium-20049
recordtype	eprints
spelling	iium-200492012-05-31T02:34:49Z http://irep.iium.edu.my/20049/ An experimental study of a phase change storage system Hawlader, Mohammad Nurul Alam Smita, Panga TH Building construction This paper describes the heat transfer process and the movement of the solid-liquid interface when the energy is added to a PCM, paraffin wax, through a vertical wall heated under conditions of uniform heat flux and constant temperature. Experiments indicate that the initial mode of heat transfer in the melting process was purely conduction controlled, and early convection due to volumetric expansion of the liquid PCM was followed by the solely buoyancy driven natural convection within the liquid. At this stage, the superheating of the liquid led to a combined convection and conduction mode of heat transfer until eventually conduction became the dominant mode of heat transfer. Superheating and subcooling of the PCM reduce the rate of propagation of the solid-liquid interface. Numerical simulation, based on the enthalpy formulation, indicated the presence of convection in the fluid region of the PCM, which is confirmed by the results from the experiments. IIUM Press 2011 Book Chapter PeerReviewed application/pdf en http://irep.iium.edu.my/20049/1/an_experimental_study_of_a_phase_-_C4.pdf Hawlader, Mohammad Nurul Alam and Smita, Panga (2011) An experimental study of a phase change storage system. In: Alternative energy. IIUM Press, Kuala Lumpur, pp. 23-29. ISBN 9789674181581 http://rms.research.iium.edu.my/bookstore/Default.aspx
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TH Building construction
spellingShingle	TH Building construction Hawlader, Mohammad Nurul Alam Smita, Panga An experimental study of a phase change storage system
description	This paper describes the heat transfer process and the movement of the solid-liquid interface when the energy is added to a PCM, paraffin wax, through a vertical wall heated under conditions of uniform heat flux and constant temperature. Experiments indicate that the initial mode of heat transfer in the melting process was purely conduction controlled, and early convection due to volumetric expansion of the liquid PCM was followed by the solely buoyancy driven natural convection within the liquid. At this stage, the superheating of the liquid led to a combined convection and conduction mode of heat transfer until eventually conduction became the dominant mode of heat transfer. Superheating and subcooling of the PCM reduce the rate of propagation of the solid-liquid interface. Numerical simulation, based on the enthalpy formulation, indicated the presence of convection in the fluid region of the PCM, which is confirmed by the results from the experiments.
format	Book Chapter
author	Hawlader, Mohammad Nurul Alam Smita, Panga
author_facet	Hawlader, Mohammad Nurul Alam Smita, Panga
author_sort	Hawlader, Mohammad Nurul Alam
title	An experimental study of a phase change storage system
title_short	An experimental study of a phase change storage system
title_full	An experimental study of a phase change storage system
title_fullStr	An experimental study of a phase change storage system
title_full_unstemmed	An experimental study of a phase change storage system
title_sort	experimental study of a phase change storage system
publisher	IIUM Press
publishDate	2011
url	http://irep.iium.edu.my/20049/ http://irep.iium.edu.my/20049/ http://irep.iium.edu.my/20049/1/an_experimental_study_of_a_phase_-_C4.pdf
first_indexed	2023-09-18T20:30:02Z
last_indexed	2023-09-18T20:30:02Z
_version_	1777408674870853632

An experimental study of a phase change storage system

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