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
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Online Access:http://irep.iium.edu.my/20049/1/an_experimental_study_of_a_phase_-_C4.pdf
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spelling my.iium.irep.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 REM 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
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
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/20049/1/an_experimental_study_of_a_phase_-_C4.pdf
http://irep.iium.edu.my/20049/
http://rms.research.iium.edu.my/bookstore/Default.aspx
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score 13.214268