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ACRC Technical Report 172PDF


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
Sponsor:Air Conditioning and Refrigeration Project 110
Date Available in IDEALS:2009-05-29

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