Thermal analysis of a constructal T-shaped porous fin with simultaneous heat and mass transfer

被引：0

作者：

Saheera Azmi Hazarika ^{[1
]}

Tuhin Deshamukhya ^{[1
]}

Dipankar Bhanja ^{[1
]}

Sujit Nath ^{[1
]}

机构：

[1] Department of Mechanical Engineering, National Institute of Technology

来源：

Chinese Journal of Chemical Engineering | 2017年 / 25卷 / 09期

关键词：

Constructal; Porous; Mass transfer; Analytical; Optimization; Differential Transform Method;

D O I：

暂无

中图分类号：

TQ021 [基础理论];

学科分类号：

081701 ; 081704 ;

摘要：

The present work establishes an analytical model for computing the temperature distribution, fin efficiency and optimum design parameters of a constructal T-shaped porous fin operating in fully wet condition. For more practical results, this study considers a cubic polynomial relationship between the humidity ratio of saturated air and the corresponding fin surface temperature. The temperature distribution has been determined by solving the highly non-linear governing equations using a semi-analytical transformation technique called Differential Transform Method. A comparison of the results with that of a numerical model shows that this transformation method is a very efficient and convenient tool for solution of non-linear problems. The effects of various geometric, thermo-physical and psychometric parameters on the temperature distribution, fin efficiency and optimum design condition have been investigated. Also, a comparison has been presented between solid and porous fins and the results point out that by selecting an appropriate value of porosity, the heat transfer rate can be increased than the corresponding solid fin.

引用

页码：1121 / 1136

页数：16

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