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An experimental study of heat transfer enhancement with a pulsating flow

✍ Scribed by Zheng Jun; Zeng Danling; Wang Ping; Gao Hong

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 415 KB
Volume: 33
Category: Article
ISSN: 1099-2871
DOI: 10.1002/htj.20020

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✦ Synopsis

Abstract

A pulsating flow in a pipe was experimentally investigated to determine the effect of pulsation on the rate of heat transfer. The influence of hydrodynamic parameters and characteristics of the pulsation on heat transfer was carefully studied. In order to adjust the pulsating parameters, a self‐oscillator was designed so the length of the resonator and the length of the outlet nozzle could be adjusted. The results show that the heat transfer rate is strongly affected by both the hydrodynamic parameters and the configuration of the resonator. With the increase of the flow rate of the liquid and the length of the chamber, heat transfer is enhanced. There is an optimal length at which the heat transfer enhancement attends to the best. © 2004 Wiley Periodicals, Inc. Heat Trans Asian Res, 33(5): 279–286, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20020

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