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Experimental study on condensation heat transfer enhancement and pressure drop penalty factors in four microfin tubes

Abstract

Heat transfer and pressure drop characteristics of four microfin tubes were experimentally investigated for condensation of refrigerants R134a, R22, and R410A in four different test sections. The microfin tubes examined during this study consisted of 8.92, 6.46, 5.1, and 4 mm maximum inside diameter. The effect of mass flux, vapor quality, and refrigerants on condensation was investigated in terms of the heat transfer enhancement factor and the pressure drop penalty factor. The pressure drop penalty factor and the heat transfer enhancement factor showed a similar tendency for each tube at given vapor quality and mass flux. Based on the experimental data and the heat-momentum analogy, correlations for the condensation heat transfer coefficients in an annular flow regime and the frictional pressure drops are proposed. (author)
Authors:
Han, D; [1]  Lee, Kyu-Jung [2] 
  1. Korea University, Seoul (Korea). Institute of Advanced Machinery Design
  2. Korea University, Seoul (Korea). Dept. of Mechanical Engineering
Publication Date:
Aug 01, 2005
Product Type:
Journal Article
Resource Relation:
Journal Name: International Journal of Heat and Mass Transfer; Journal Volume: 48; Journal Issue: 18
Subject:
42 ENGINEERING; HEAT TRANSFER; PRESSURE DROP; TUBES; FINS; VAPOR CONDENSATION; REFRIGERANTS
OSTI ID:
20647282
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0017-9310; IJHMAK; TRN: GB0550571
Submitting Site:
GB
Size:
page(s) 3804-3816
Announcement Date:
Nov 23, 2005

Citation Formats

Han, D, and Lee, Kyu-Jung. Experimental study on condensation heat transfer enhancement and pressure drop penalty factors in four microfin tubes. United Kingdom: N. p., 2005. Web. doi:10.1016/j.ijheatmasstransfer.2005.02.041.
Han, D, & Lee, Kyu-Jung. Experimental study on condensation heat transfer enhancement and pressure drop penalty factors in four microfin tubes. United Kingdom. doi:10.1016/j.ijheatmasstransfer.2005.02.041.
Han, D, and Lee, Kyu-Jung. 2005. "Experimental study on condensation heat transfer enhancement and pressure drop penalty factors in four microfin tubes." United Kingdom. doi:10.1016/j.ijheatmasstransfer.2005.02.041. https://www.osti.gov/servlets/purl/10.1016/j.ijheatmasstransfer.2005.02.041.
@misc{etde_20647282,
title = {Experimental study on condensation heat transfer enhancement and pressure drop penalty factors in four microfin tubes}
author = {Han, D, and Lee, Kyu-Jung}
abstractNote = {Heat transfer and pressure drop characteristics of four microfin tubes were experimentally investigated for condensation of refrigerants R134a, R22, and R410A in four different test sections. The microfin tubes examined during this study consisted of 8.92, 6.46, 5.1, and 4 mm maximum inside diameter. The effect of mass flux, vapor quality, and refrigerants on condensation was investigated in terms of the heat transfer enhancement factor and the pressure drop penalty factor. The pressure drop penalty factor and the heat transfer enhancement factor showed a similar tendency for each tube at given vapor quality and mass flux. Based on the experimental data and the heat-momentum analogy, correlations for the condensation heat transfer coefficients in an annular flow regime and the frictional pressure drops are proposed. (author)}
doi = {10.1016/j.ijheatmasstransfer.2005.02.041}
journal = {International Journal of Heat and Mass Transfer}
issue = {18}
volume = {48}
place = {United Kingdom}
year = {2005}
month = {Aug}
}