Numerical modeling of inward and outward melting of high temperature PCM in a vertical cylinder
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Date
2016
Authors
Riahi, S.
Saman, W.Y.
Bruno, F.
Tay, N.H.S.
Editors
Rajpaul, V.
Richter, C.
Richter, C.
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Conference paper
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AIP Conference Proceedings, 2016 / Rajpaul, V., Richter, C. (ed./s), vol.1734, iss.050039, pp.1-9
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21st International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2015 (13 Oct 2016 - 16 Oct 2016 : South Africa)
Abstract
Numerical study of inward and outward melting of a high temperature PCM in cylindrical enclosures were performed, using FLUENT 15. For validation purposes, numerical modeling of inward melting of a low temperature PCM was initially conducted and the predicted results were compared with the experimental data from the literature. The validated model for the low temperature PCM was used for two high temperature cases; inward melting of a high temperature PCM in a cylindrical enclosure and outward melting in a cylindrical case with higher aspect ratio. The results of this study show that the numerical model developed is capable of capturing the details of melting process with buoyancy driven convection for Ra<10(8), i.e. laminar flow, for a high temperature PCM and can be used for the design and optimization of a latent heat thermal storage unit.
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Copyright 2016 The Author(s)