Theoretical analysis of convective heat transfer enhancement of microencapsulated phase change material slurries

被引：9

作者：

Yinping Zhang

Xianxu Hu

Xin Wang

机构：

[1] Institute of Heating,

[2] Ventilating and Air-conditioning,undefined

[3] Tsinghua University,undefined

[4] Beijing 100084,undefined

[5] P. R. China,undefined

来源：

Heat and Mass Transfer | 2003年 / 40卷

关键词：

Phase change material slurries; Microcapsule; Heat transfer enhancement;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper analyzes the convective heat transfer enhancement mechanism of microencapsulated phase change material slurries based on the analogy between convective heat transfer and thermal conduction with thermal sources. The influence of each factor affecting the heat transfer enhancement for laminar flow in a circular tube with constant wall temperature is analyzed using an effective specific heat capacity model. The model is validated with results available in the literature. The analysis and the results clarify the heat transfer enhancement mechanism and the main factors influencing the heat transfer. In addition, the conventional Nusselt number definition of phase change slurries for internal flow is modified to describe the degree of heat transfer enhancement of microencapsulated phase change material slurries. The modification is also consistent evaluation of the convective heat transfer of internal and external flows.

引用

页码：59 / 66

页数：7

共 12 条

[1]

Charunyakorn JC(1991)Microencapsulated phase-change material suspensions for heat transfer in spacecraft thermal systems Int J Heat Mass Transfer 34 819-284

[2]

Colvin DP(1992)undefined SAE Trans 101 717-undefined

[3]

Choi YG(1992)undefined ASME HTD 220 45-undefined

[4]

Goel undefined(1994)undefined Int J Heat Mass Transfer 37 593-undefined

[5]

Choi undefined(1994)undefined Int J Heat Mass Transfer 37 207-undefined

[6]

Zhang undefined(1995)undefined J Thermophys Heat Transfer 9 727-undefined

[7]

Mulligan undefined(1996)undefined J Spacecraft Rockets 33 278-undefined

[8]

Colvin undefined(1999)undefined AICHE J 45 696-undefined

[9]

Bryant undefined(2000)undefined J Thermophys Heat Transfer 14 115-undefined

[10]

Yamagishi undefined(1998)undefined Int J Heat Mass Transfer 41 2221-undefined

← 1 2 →