Effects of Variation in Root Temperature on Heat Lost from a Thermally Non-Symmetric Fin

Author

Dwight C. Look, Missouri University of Science and TechnologyFollow
Hyung Suk Kang

Abstract

A discussion of the variation of the heat lost from a fin is presented the root temperature of which is T = Tw + a cosm (?y'/21), 0 ? m ? 5, and surface convection coefficients of which are constant but unequal. The range of parameters are 0 ? B2 ? b1 ? l, B1 = 0.01, 0.1, 1.0 where B1 and B2 are the Biot numbers of the top and bottom surfaces, respectively. A fin justification criterion (fin heat loss greater than or equal to three times the no-fin heat loss) is used to discuss fin effectiveness. The results are (1) the heat lost from the fin decreases as m increases, a > 0; (2) tip Biot number is not an important factor in heat lost for large B1 and B2 and (3) as a increases (m constant) the heat lost increases almost linearly.

Recommended Citation

D. C. Look and H. S. Kang, "Effects of Variation in Root Temperature on Heat Lost from a Thermally Non-Symmetric Fin," International Journal of Heat and Mass Transfer, Elsevier, Jan 1991.

The definitive version is available at https://doi.org/10.1016/0017-9310(91)90016-8

Department(s)

Mechanical and Aerospace Engineering

International Standard Serial Number (ISSN)

0017-9310

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1991 Elsevier, All rights reserved.

Publication Date

01 Jan 1991