Fin efficiency of annular fins made of two materials

被引：21

作者：

Lalot, S

Tournier, C

Jensen, M

机构：

[1] EIPC, METIER, F-62967 Longuenesse, France

[2] Univ Valenciennes & Hainaut Cambresis, LAMIH, F-59304 Valenciennes, France

[3] Rensselaer Polytech Inst, Dept Mech Engn Aeronaut Engn & Mech, Troy, NY 12180 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1999年 / 42卷 / 18期

关键词：

D O I：

10.1016/S0017-9310(99)00009-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The efficiency of two-material fins is presented. The analytical solution is compared to the expression obtained by Gardner for one-material fins. We conclude that Gardner's expression can be used for a two-material fin, by changing only the value of one parameter. The efficiency of a galvanized fin may be considerably increased by the coating. The ratio of the efficiency of the coated fun to the efficiency of the basic fin may increase by a factor of two for thin fins having a large fin tip radius to base radius ratio. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：3461 / 3467

页数：7