DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Song Kyu | ko |
dc.contributor.author | Chang, Soon-Heung | ko |
dc.date.accessioned | 2013-03-08T08:04:36Z | - |
dc.date.available | 2013-03-08T08:04:36Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2008-06 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.51, no.11-12, pp.3153 - 3163 | - |
dc.identifier.issn | 0017-9310 | - |
dc.identifier.uri | http://hdl.handle.net/10203/92549 | - |
dc.description.abstract | A study of post-dryout heat transfer was performed with a directed heated smooth tube and rifled tubes using vertical R-134a up-flow to investigate the heat transfer characteristics in the post-dryout region. Three types of rifled tube having different rib height and width were used to examine the effects of rib geometry and compare with the smooth tube, using a mass flux of 70-800 kg/m(2) s and a pressure of 13-24 bar (corresponding to an approximate water pressure of 80-140 bar). Wall temperature distribution in all tubes was strongly dependent oil pressure and mass flux. Wall temperatures of the rifled tubes in the post-dryout region were much lower than for the smooth tube at same conditions. This was attributed to swirl flow caused by the rib. Thus, the thermal non-equilibrium, which is usually present in the post-dryout region, was lowered. The empirical correlation of heat transfer in the smooth tube of the post-dryout region was obtained. The heat transfer correlation for rifled tubes was also obtained as a function of rib height and width with the modification of the smooth tube correlation. (c) 2007 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | INTERNALLY RIBBED TUBE | - |
dc.subject | BOILING HEAT-TRANSFER | - |
dc.subject | PREDICTION METHODS | - |
dc.subject | ROD BUNDLE | - |
dc.subject | SWIRL FLOW | - |
dc.subject | NONEQUILIBRIUM | - |
dc.subject | CHF | - |
dc.subject | REGIME | - |
dc.subject | MODEL | - |
dc.subject | DROP | - |
dc.title | Experimental study of post-dryout with R-134a upward flow in smooth tube and rifled tubes | - |
dc.type | Article | - |
dc.identifier.wosid | 000256128800047 | - |
dc.identifier.scopusid | 2-s2.0-41949093533 | - |
dc.type.rims | ART | - |
dc.citation.volume | 51 | - |
dc.citation.issue | 11-12 | - |
dc.citation.beginningpage | 3153 | - |
dc.citation.endingpage | 3163 | - |
dc.citation.publicationname | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | - |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2007.08.026 | - |
dc.contributor.localauthor | Chang, Soon-Heung | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | R-134a | - |
dc.subject.keywordAuthor | post-dryout heat transfer | - |
dc.subject.keywordAuthor | empirical correlation | - |
dc.subject.keywordAuthor | critical quality | - |
dc.subject.keywordAuthor | rifled tube | - |
dc.subject.keywordPlus | INTERNALLY RIBBED TUBE | - |
dc.subject.keywordPlus | BOILING HEAT-TRANSFER | - |
dc.subject.keywordPlus | PREDICTION METHODS | - |
dc.subject.keywordPlus | ROD BUNDLE | - |
dc.subject.keywordPlus | SWIRL FLOW | - |
dc.subject.keywordPlus | NONEQUILIBRIUM | - |
dc.subject.keywordPlus | CHF | - |
dc.subject.keywordPlus | REGIME | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | DROP | - |
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