Abo Bibliothek: Guest

ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

CORRECTING FOR THE VARIABILITY OF THE HEAT TRANSFER COEFFICIENT IN EXTENDED SURFACE ANALYSIS

Get access (open in a dialog) DOI: 10.1615/IHTC7.2180
pages 239-243

Abstrakt

The heat transfer coefficient along the faces of extended surface is usually treated as constant in evaluating the heat exchanger performance measures, although there are numerical methods to accommodate variation and analytic results are known in special cases. This paper develops a perturbational approach to account for the variability. It also addresses the question as to the appropriate kind of average value to be used in practice, when employing a formalism premised on the assumption that the heat transfer coefficient is constant. unknown in practice.