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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

NUMERICAL MODELING AND EXPERIMENTAL VALIDATION OF A PCM (PHASE CHANGE MATERIAL)-BASED CASCADE COOLING SYSTEM FOR ENHANCED THERMAL MANAGEMENT

Get access (open in a dialog) DOI: 10.1615/IHTC16.ctm.024051
pages 4065-4070

Résumé

This paper considers the thermal enhancement of a PCM-based cascade cooling system using experimental measurements and numerical validation. Two kinds of paraffin with different melting temperatures were used for the PCM-based cascade cooling system. The conceptual design and numerical prediction enabled assessment of the feasibility of the idea proposed in this study. In numerical simulations, the heat loss of a cartridge heater was considered to improve the accuracy of the numerical model. As a result, the difference of heat loss between simulations and experiments was approximately 5.0 % on average in the case of natural convection in air around the fin array of a heat sink. The cooling efficiency was also enhanced by approximately 27.3 % by the multi-layer type PCM-based cascade cooling system. It is expected that the PCM-based heat sink enables both instantaneous absorption of short-term spikes in the energy output from the heat sources and enhanced cooling efficiency by energy cascading among layers of PCMs.