Publication de 8 numéros par an
ISSN Imprimer: 1065-5131
ISSN En ligne: 1563-5074
Indexed in
EFFECT OF MELT CONVECTION ON THE OPTIMUM THERMAL DESIGN OF HEAT SINKS WITH PHASE CHANGE MATERIAL
RÉSUMÉ
In this paper, the role of melt convection on the performance of heat sinks with phase change material (PCM) is investigated numerically. The heat sink consists of aluminum plate fins embedded in PCM, and is subjected to heat flux supplied from the bottom. A single-domain enthalpy−based CFD model is developed, which is capable of simulating the phase change process and the associated melt convection. The CFD model is coupled with a genetic algorithm for carrying out the optimization. Two cases are considered, namely, one without melt convection (i.e., conduction heat transfer analysis), and the other with convection. It is found that the geometrical optimizations of heat sinks are different for the two cases, indicating the importance of melt convection in the design of heat sinks with PCMs. In the case of conduction analysis, the optimum width of half fin (i.e., sum of half pitch and half fin thickness) is a constant, which is in good agreement with results reported in the literature. On the other hand, if melt convection is considered, the optimum half fin width depends on the effective thermal diffusivity due to conduction and convection. With melt convection, the optimized design results in a significant improvement of operational time.
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Lu Jiang, Fan Li-wu, Zeng Yi, Xiao Yu-qi, Xu Xu, Yu Zi-tao, Effect of the inclination angle on the transient performance of a phase change material-based heat sink under pulsed heat loads, Journal of Zhejiang University SCIENCE A, 15, 10, 2014. Crossref
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Kalbasi Rasool, Salimpour Mohammad Reza, Constructal design of horizontal fins to improve the performance of phase change material rectangular enclosures, Applied Thermal Engineering, 91, 2015. Crossref
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Salimpour Mohammad Reza, Kalbasi Rasool, Lorenzini Giulio, Constructal multi-scale structure of PCM-based heat sinks, Continuum Mechanics and Thermodynamics, 29, 2, 2017. Crossref
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Hasan Tonny Tabassum Mainul, Begum Latifa, Thermal Energy Storage Through Melting of a Commercial Phase Change Material in an Annulus with Radially Divergent Longitudinal Fins, International Journal of Thermofluid Science and Technology, 7, 1, 2020. Crossref
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Taghilou Mohammad, Khavasi Ehsan, Thermal behavior of a PCM filled heat sink: The contrast between ambient heat convection and heat thermal storage, Applied Thermal Engineering, 174, 2020. Crossref
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Gohil Karan N., Deckard Michael, Shamberger Patrick J., Jain Neera, A Reduced-order Model for Analyzing Heat Transfer in a Thermal Energy Storage Module, 2020 19th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2020. Crossref
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Shanks Michael, Shoalmire Charles M., Deckard Michael, Gohil Karan N., Lewis Henry, Lin Darin, Shamberger Patrick J., Jain Neera, Design of spatial variability in thermal energy storage modules for enhanced power density, Applied Energy, 314, 2022. Crossref
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Wang You , Zhu Ziliang , Ke Hanbing , Lin Mei, Wang Qiuwang, Wu Yining, STUDY OF ICE SPIKE FORMATION MECHANISM IN THE WATER-BASED PHASE CHANGE ENERGY STORAGE , Journal of Enhanced Heat Transfer, 30, 1, 2023. Crossref