Fin Efficiency of an Annular Fin Composed of a Substrate Metallic Fin and a Coating Layer-Reference-Cited by-同舟云学术

Fin Efficiency of an Annular Fin Composed of a Substrate Metallic Fin and a Coating Layer

Published:2006-02-21 Issue:8 Volume:128 Page:851-854
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Tu Ping¹,Inaba Hideo¹,Horibe Akihiko¹,Li Zhongmin¹,Haruki Naoto¹

Affiliation:

1. Department of Mechanical Engineering, Faculty of Engineering, Okayama University, Tsushimanaka 3-1-1, Okayama 700-8530, Japan

Abstract

An analytical solution to a composite annular fin made of a substrate metallic fin and a coating layer has been carried out. Useful expressions for calculating temperature distribution and fin efficiency have been derived. Comparing the analytical results to those of numerical calculation, the premise for the expressions is also explored. Theoretical analyzing results show that fin efficiency of a coated fin decreases with an increase of the coating layer thickness if the thermal conductivity of coating layer is much less than that of the substrate metallic fin. Whereas, the reverse influence of the coating layer thickness on the fin efficiency appears if the thermal conductivity of the coating layer is beyond the above range.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/128/8/851/5666081/851_1.pdf

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