University of Illinois Urbana-Champaign

A Study of the Application of Vortex Generators to Enhance the Air-Side Performance of Heat Exchangers

Bull, B.R.; Jacobi, A.M.

Content Files
TR214.pdf

Permalink

https://hdl.handle.net/2142/12168

Description

Title
A Study of the Application of Vortex Generators to Enhance the Air-Side Performance of Heat Exchangers
Author(s)
  • Bull, B.R.
  • Jacobi, A.M.
Issue Date
2003-05
Keyword(s)
  • vortex generators
  • air-side thermal performance
Date of Ingest
2009-06-12T18:39:02Z
Abstract
The effect of longitudinal vortex generation on heat transfer is evaluated for a full scale plain fin-and-tube compact heat exchanger operating in both dry and wet conditions. The heat exchanger tested is comparable to an evaporator in a residential air-conditioning system. For this study the baseline performance of the heat exchanger is determined then the heat exchanger is modified with the addition of 2100 delta-wing vortex generators. The performance is determined by a volume goodness factor for the dry operating conditions and the overall enthalpy transfer coefficient for wet operating conditions. A 10% improvement in the volume goodness factor was recorded for the dry tests and the wet tests showed an overall reduction in the overall enthalpy transfer coefficient. A comparison was then made using j and f correlations for other enhanced surfaces. From these tests the j/f value for the vortex generator enhanced surface is shown to be comparable to the other enhanced surfaces.
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-214
Type of Resource
text
Genre of Resource
Technical Report
Language
en
Permalink
http://hdl.handle.net/2142/12168
Sponsor(s)/Grant Number(s)
Air Conditioning and Refrigeration Project 121

Owning Collections

Technical Reports - Air Conditioning and Refrigeration Center PRIMARY