Thermal conductivity measurement of a PCM based storage system containing carbon fibers

被引：201

作者：

Frusteri, F ^{[1
]}

Leonardi, V ^{[1
]}

Vasta, S ^{[1
]}

Restuccia, G ^{[1
]}

机构：

[1] Inst CNR ITAE, I-98126 Messina, Italy

来源：

APPLIED THERMAL ENGINEERING | 2005年 / 25卷 / 11-12期

基金：

日本科学技术振兴机构;

关键词：

thermal storage; phase change material; thermal conductivity; carbon fiber;

D O I：

10.1016/j.applthermaleng.2004.10.007

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The influence of carbon fibers on thermal conductivity enhancement of an inorganic PCM44 has been evaluated. Fibers of different length were randomly distributed and thermal conductivity measurements of the obtained composite were carried out by hot-wire method. It has been seen that the homogeneity grade of the composite (PCM + fiber) plays a fundamental role in the enhancement of heat diffusion. A linear relationship between carbon fiber loading and thermal conductivity increasing was found in a wide range of carbon loading (up to 10 wt%). The best results were obtained using micro-fibers (l = 0.2 mm): thermal conductivity quadruplicate at a fiber loading of about 7 wt%. Furthermore, the experimental results have been fitted by a literature heat transfer model. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1623 / 1633

页数：11

共 18 条

[1] LOW-TEMPERATURE LATENT-HEAT THERMAL-ENERGY STORAGE - HEAT-STORAGE MATERIALS [J].