An experimental and theoretical study of solidification in a free-convection flow inside a vertical annular enclosure

被引：20

作者：

Lipnicki, Z. ^{[2
]}

Weigand, B. ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Thermodynam Luft & Raumfahrt, D-70569 Stuttgart, Germany

[2] Univ Zielona Gora, Inst Environm Engn, PL-65516 Zielona Gora, Poland

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2012年 / 55卷 / 04期

关键词：

Solidification; PCM; Free convection; Vertical annular enclosure; Experiments; THERMAL CONTACT RESISTANCE; 1ST STAGES;

D O I：

10.1016/j.ijheatmasstransfer.2011.10.044

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The natural convection and solidification in an annular enclosure has been studied experimentally and theoretically. Here the inner cylinder of the annular enclosure was cooled below the solidification temperature of the water, while the outer cylinder was kept on a uniform temperature well above 0 degrees C. The problem of the unsteady growth of the ice-layer on the inner cold cylindrical surface is studied theoretically and an approximate solution has been obtained for the quasi-steady development of the ice-layer thickness. In addition, it has been found that the influence of the contact layer between the frozen layer and the cold surface is of significant importance for the solidification process. Results are presented and compared between the experimental and the analytical investigation. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：655 / 664

页数：10

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