Study of direct contact melting with hydrocarbon mixtures as the PCM

被引：45

作者：

Kumano, H ^{[1
]}

Saito, A ^{[1
]}

Okawa, S ^{[1
]}

Takeda, K ^{[1
]}

Okuda, A ^{[1
]}

机构：

[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Engn Sci & Mech, Meguro Ku, Tokyo 1528552, Japan

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2005年 / 48卷 / 15期

关键词：

D O I：

10.1016/j.ijheatmasstransfer.2005.01.040

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

in this study, direct contact melting of hydrocarbon mixtures as phase change materials was investigated experimentally. Tetradecane and hexadecane binary mixtures, and pentadecane and octadecane binary mixtures were used as phase change materials, with various mixing ratios. It was found that the heat flux decreased significantly in the low surface temperature range. In addition, a rough and uneven melting surface was observed in the low surface temperature range. The convex portions at the melting surface were collected, and the ingredients of this region were measured by using differential scanning calorimetry (DSC). It was found that the DSC curve shifted to a higher temperature region, and the concentration of higher melting point material increased at the convex portions. Therefore, it seems that the melting point around the convex portions increased due to the higher concentration of higher melting point material, and this resulted in the decrease in the heat flux. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：3212 / 3220

页数：9

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