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Theoretical study of evaporation heat transfer in horizontal microfin tubes: stratified flow model

Abstract

The stratified flow model of evaporation heat transfer in helically grooved, horizontal microfin tubes has been developed. The profile of stratified liquid was determined by a theoretical model previously developed for condensation in horizontal microfin tubes. For the region above the stratified liquid, the meniscus profile in the groove between adjacent fins was determined by a force balance between the gravity and surface tension forces. The thin film evaporation model was applied to predict heat transfer in the thin film region of the meniscus. Heat transfer through the stratified liquid was estimated by using an empirical correlation proposed by Mori et al. The theoretical predictions of the circumferential average heat transfer coefficient were compared with available experimental data for four tubes and three refrigerants. A good agreement was obtained for the region of Fr{sub 0}<2.5 as long as partial dry out of tube surface did not occur. (Author)
Authors:
Honda, H; Wang, Y S [1] 
  1. Kyushu Univ., Inst. for Materials Chemistry and Engineering, Kasuga, Fukuoka (Japan)
Publication Date:
Aug 01, 2004
Product Type:
Journal Article
Resource Relation:
Journal Name: International Journal of Heat and Mass Transfer; Journal Volume: 47; Journal Issue: 17-18; Other Information: PBD: Aug 2004
Subject:
42 ENGINEERING; TUBES; EVAPORATION; HEAT TRANSFER; STRATIFICATION; FLUID FLOW; REFRIGERANTS; MATHEMATICAL MODELS
OSTI ID:
20525482
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0017-9310; IJHMAK; TRN: GB0014997
Submitting Site:
GB
Size:
page(s) 3971-3983
Announcement Date:

Citation Formats

Honda, H, and Wang, Y S. Theoretical study of evaporation heat transfer in horizontal microfin tubes: stratified flow model. United Kingdom: N. p., 2004. Web. doi:10.1016/j.ijheatmasstransfer.2004.02.027.
Honda, H, & Wang, Y S. Theoretical study of evaporation heat transfer in horizontal microfin tubes: stratified flow model. United Kingdom. doi:10.1016/j.ijheatmasstransfer.2004.02.027.
Honda, H, and Wang, Y S. 2004. "Theoretical study of evaporation heat transfer in horizontal microfin tubes: stratified flow model." United Kingdom. doi:10.1016/j.ijheatmasstransfer.2004.02.027. https://www.osti.gov/servlets/purl/10.1016/j.ijheatmasstransfer.2004.02.027.
@misc{etde_20525482,
title = {Theoretical study of evaporation heat transfer in horizontal microfin tubes: stratified flow model}
author = {Honda, H, and Wang, Y S}
abstractNote = {The stratified flow model of evaporation heat transfer in helically grooved, horizontal microfin tubes has been developed. The profile of stratified liquid was determined by a theoretical model previously developed for condensation in horizontal microfin tubes. For the region above the stratified liquid, the meniscus profile in the groove between adjacent fins was determined by a force balance between the gravity and surface tension forces. The thin film evaporation model was applied to predict heat transfer in the thin film region of the meniscus. Heat transfer through the stratified liquid was estimated by using an empirical correlation proposed by Mori et al. The theoretical predictions of the circumferential average heat transfer coefficient were compared with available experimental data for four tubes and three refrigerants. A good agreement was obtained for the region of Fr{sub 0}<2.5 as long as partial dry out of tube surface did not occur. (Author)}
doi = {10.1016/j.ijheatmasstransfer.2004.02.027}
journal = {International Journal of Heat and Mass Transfer}
issue = {17-18}
volume = {47}
journal type = {AC}
place = {United Kingdom}
year = {2004}
month = {Aug}
}