Conjugate conduction-natural convection heat transfer in a hollow building block

被引：69

作者：

Antar, Mohamed A. ^{[1
]}

Baig, Hasan ^{[1
]}

机构：

[1] KFUPM, Dept Mech Engn, Dhahran, Saudi Arabia

来源：

APPLIED THERMAL ENGINEERING | 2009年 / 29卷 / 17-18期

关键词：

Conjugate heat transfer; Numerical; Heat leak; R-value; MULTIPLE VERTICAL PARTITIONS; NUMERICAL-SIMULATION; ENCLOSURES; CAVITY; WALLS;

D O I：

10.1016/j.applthermaleng.2009.04.033

中图分类号：

O414.1 [热力学];

学科分类号：

070201 [理论物理];

摘要：

Conjugate heat transfer across a hollow block is investigated numerically. Conduction heat transfer in the block material and natural convection in the cavity are considered. Results show that increasing the number of cavities while keeping the block width constant decreases the heat loss (increases the R-value) significantly. A maximum number of six cavities can fit the building block without compromising the strength. With this number of cavities, no insulation would be needed to fill the cavities as a result of the reduced effect of natural convection. This study may provide guidelines for engineers toward better design and selection of building materials for higher thermal resistance. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：3716 / 3720

页数：5

共 16 条

[1]

Analysis of coupled natural convection-conduction effects on the heat transport through hollow building blocks [J].