Condensate Retention Effects on the Air-Side Heat Transfer Performance of Plain and Wavy-Louvered Heat Exchangers

Yin, J.; Jacobi, A.M.

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https://hdl.handle.net/2142/11906 Copy

Description

Title

Condensate Retention Effects on the Air-Side Heat Transfer Performance of Plain and Wavy-Louvered Heat Exchangers

Author(s)

• Yin, J.
• Jacobi, A.M.

Issue Date

2000-01

Keyword(s)

air-side heat transfer

Abstract

The effect of condensation on air-side heat transfer performance has been studied for plain-fin-and-tube and wavy-louvered heat exchangers with fin spacings of 2.12, 1.57, and 1.27 mm. Wet and dry heat exchanger experiments have been conducted to obtain sensible heat transfer, pressure drop, and condensate retention data to help understand the effects of retained condensate on heat exchanger performance. Condensate retention behavior was characterized by measurements of the real-time and steady-state mass of retained condensate. Sensible j and friction factor correlations have been developed using dimensional analysis and the experimental data for the heat exchangers under wet and dry conditions. A condensate retention model has been developed to help predict the quantity of retained condensate on plain-fin-and-tube heat exchangers based on geometry, contact angles, and orientation.

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-158

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/11906

Sponsor(s)/Grant Number(s)

Air Conditioning and Refrigeration Project 91

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