Study on the Heat Conduction of Phase-Change Material Microcapsules

被引：9

作者：

Zhao, Gangtao ^{[1
]}

Xu, Xiaohui

Qiu, Lin ^{[2
]}

Zheng, Xinghua ^{[2
]}

Tang, Dawei ^{[2
]}

机构：

[1] Chinese Peoples Liberat Army, Beijing Mil Command, Gen Hosp, Dept Pharmacol, Beijing, Peoples R China

[2] Chinese Acad Sci, Inst Engn Thermophys, Beijing 100864, Peoples R China

来源：

JOURNAL OF THERMAL SCIENCE | 2013年 / 22卷 / 03期

基金：

中国国家自然科学基金;

关键词：

3; omega-method; Effective thermal conductivity; Phase-change material microcapsules; THERMAL-PROPERTIES;

D O I：

10.1007/s11630-013-0621-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The 3 omega approach was used to measure the effective thermal conductivity of phase-change material microcapsules (PCMMs) based on urea formaldehyde and sliced paraffin. The effective thermal conductivities of PCMMs with different densities were measured within the phase-change temperature range. The relationships between effective thermal conductivity, density and temperature were analysed. The effective thermal conductivity reached peak values within the phase-change temperature range and the temperature peak value was consistent with the peak value of the phase-change temperature. The effective thermal conductivity increased with increasing density due to the decreased porosity of samples and their increased solid-phase conduction.

引用

页码：257 / 260

页数：4

共 15 条

[1] Preparation, thermal properties and thermal reliability of microencapsulated n-eicosane as novel phase change material for thermal energy storage [J].