Air-side heat transfer and pressure drop characteristics of flat-type, U-and V-shaped microchannel condensers for refrigerator applications
DC Field | Value | Language |
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dc.contributor.author | Oh, Sung Hyuk | - |
dc.contributor.author | Lee, Sang Hun | - |
dc.contributor.author | Lee, DongChan | - |
dc.contributor.author | Moon, Sung Hyun | - |
dc.contributor.author | Kim, Yongchan | - |
dc.date.accessioned | 2022-02-24T23:40:25Z | - |
dc.date.available | 2022-02-24T23:40:25Z | - |
dc.date.created | 2021-12-03 | - |
dc.date.issued | 2021-09 | - |
dc.identifier.issn | 0017-9310 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/136794 | - |
dc.description.abstract | In this study, the air-side heat transfer characteristics of microchannel heat exchangers (MCHXs), with enhanced shapes as condensers in refrigerators, are investigated. The heat transfer performances of flat-type, U- and V-shaped MCHXs, and conventional spiral fin-tube heat exchangers were measured and compared at various air flow rates and inlet temperatures. Furthermore, the Colburn j-factor and friction factor of the MCHXs were analyzed as a function of the Reynolds number. The second-type volume and area goodness factors were also analyzed to compare the heat transfer performances of the MCHXs considering various design parameters. Additionally, the empirical correlations of the Colburn j-factor and friction factor for U- and V-shaped MCHXs were developed using dimensionless parameters that reflect geometric and operating conditions. Hence, a U-shaped MCHX with a longer tube length was recommended to obtain a high absolute heat transfer rate, while a flat-type MCHX was recommended to realize high compactness and heat transfer efficiency. (C) 2021 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | THERMAL-HYDRAULIC PERFORMANCE | - |
dc.subject | EXCHANGERS | - |
dc.subject | TUBE | - |
dc.title | Air-side heat transfer and pressure drop characteristics of flat-type, U-and V-shaped microchannel condensers for refrigerator applications | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Yongchan | - |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2021.121460 | - |
dc.identifier.scopusid | 2-s2.0-85106366772 | - |
dc.identifier.wosid | 000663349800061 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.176 | - |
dc.relation.isPartOf | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | - |
dc.citation.volume | 176 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Thermodynamics | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Mechanics | - |
dc.relation.journalWebOfScienceCategory | Thermodynamics | - |
dc.relation.journalWebOfScienceCategory | Engineering, Mechanical | - |
dc.relation.journalWebOfScienceCategory | Mechanics | - |
dc.subject.keywordPlus | EXCHANGERS | - |
dc.subject.keywordPlus | THERMAL-HYDRAULIC PERFORMANCE | - |
dc.subject.keywordPlus | TUBE | - |
dc.subject.keywordAuthor | Colburn j-factor | - |
dc.subject.keywordAuthor | Condenser | - |
dc.subject.keywordAuthor | Friction factor | - |
dc.subject.keywordAuthor | Microchannel | - |
dc.subject.keywordAuthor | Refrigerator | - |
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