An Experimental Evaluation of the Thermal-Hydraulic Impact of Delta-Wing Vortex Generators in Plain-fin-and-Tube Heat Exchangers

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Title:	An Experimental Evaluation of the Thermal-Hydraulic Impact of Delta-Wing Vortex Generators in Plain-fin-and-Tube Heat Exchangers
Author(s):	El Sherbini, A.I.; Jacobi, A.M.
Subject(s):	condensate retention air-side heat transfer
Abstract:	Longitudinal vortex generation is a technique for enhancing heat transfer. Recent studies have tried to simulate the conditions for vortex generators in heat exchangers. In this work, the effectiveness of delta-wing vortex generators for fin-and-tube heat exchangers is experimentally evaluated in full-scale testing. The heat transfer and pressure drop performance of a heat exchanger are tested before and after adding a single row of vortex generators. A heat transfer enhancement of 31 % was achieved, with a pressure drop penalty smaller than 10%. The results demonstrate the high potential for this method of heat transfer augmentation in plain-fin-and-tube heat exchanger applications.
Issue Date:	2000-07
Publisher:	Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report:	Air Conditioning and Refrigeration Center TR-172
Genre:	Technical Report
Type:	Text
Language:	English
URI:	http://hdl.handle.net/2142/11953
Sponsor:	Air Conditioning and Refrigeration Project 110
Date Available in IDEALS:	2009-05-29