Melting of a phase change material in concentric horizontal annuli of arbitrary cross-section

被引：75

作者：

Khillarkar, DB ^{[1
]}

Gong, ZX ^{[1
]}

Mujumdar, AS ^{[1
]}

机构：

[1] McGill Univ, Dept Chem Engn, Thermal Sci Grp, Montreal, PQ H3A 2B2, Canada

来源：

APPLIED THERMAL ENGINEERING | 2000年 / 20卷 / 10期

基金：

加拿大自然科学与工程研究理事会;

关键词：

free convection-dominated melting; heat flux distribution; streamlines; isotherms;

D O I：

10.1016/S1359-4311(99)00058-7

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Results are presented of a finite element computational study of the free convection-dominated melting of a pure phase change material contained in concentric horizontal annuli of the following configurations: (a) square external tube with a. circular tube inside - annulus type A and (b) circular external tube with a square tube inside - annulus type B. Effects of the Rayleigh number as well as heating of the inside, outside or both walls at a temperature above the melting point of the material were studied. Flow and temperature patterns within the melt, local heat flux distributions at the heating surface and the cumulative energy charged as a function of time are presented and discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：893 / 912

页数：20

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