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Journal of Enhanced Heat Transfer
Facteur d'impact: 0.562 Facteur d'impact sur 5 ans: 0.605 SJR: 0.211 SNIP: 0.361 CiteScore™: 0.33

ISSN Imprimer: 1065-5131
ISSN En ligne: 1026-5511

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v24.i1-6.120
pages 173-182

HEAT TRANSFER ENHANCEMENT IN LATENT HEAT THERMAL ENERGY STORAGE SYSTEM

Yuwen Zhang
University of Missouri, Columbia, MO 65201, USA
Amir Faghri
College of Engineering, Department of Mechanical Engineering, University of Connecticut, 191 Auditorium Rd., Unit 3139, Storrs CT 06269-3139, USA

RÉSUMÉ

The heat transfer enhancement in the latent heat thermal energy storage system by using an externally finned tube is presented in this paper. The melting in the phase change materials and heat conduction in the tube wall and fins are described by a temperature transforming model coupled to the heat transfer from transfer fluid. The forced convection inside the tube was solved by an analytical method. The results show that the local Nusselt number inside the tube cannot be simply given by the Graetz solution. The effects of the tube wall and initial subcooling on the heat transfer performance are also studied.


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