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

El Sherbini, A.I.; Jacobi, A.M.

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https://hdl.handle.net/2142/11953 Copy

Description

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.

Issue Date

2000-07

Keyword(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.

Publisher

Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.

Series/Report Name or Number

Air Conditioning and Refrigeration Center TR-172

Type of Resource

text

Language

en

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http://hdl.handle.net/2142/11953

Sponsor(s)/Grant Number(s)

Air Conditioning and Refrigeration Project 110

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