Evaporation heat transfer and pressure drop characteristics of R1234ze(E)/R32 as a function of composition ratio in a brazed plate heat exchanger
DC Field | Value | Language |
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dc.contributor.author | Lee, DongChan | - |
dc.contributor.author | Kim, Dongwoo | - |
dc.contributor.author | Cho, Wonhee | - |
dc.contributor.author | Kim, Yongchan | - |
dc.date.accessioned | 2021-09-01T07:21:18Z | - |
dc.date.available | 2021-09-01T07:21:18Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-09 | - |
dc.identifier.issn | 0017-9310 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/62992 | - |
dc.description.abstract | This study investigates the evaporation heat transfer coefficient and two-phase frictional pressure drop of refrigerant mixture R1234ze(E)/R32 at various R1234ze(E) composition ratios in a brazed plate heat exchanger. The heat transfer coefficient of R1234ze(E)/R32 shows a concave curve as a function of composition ratio owing to the temperature glide of the mixture, whereas the two-phase frictional pressure drop increases exponentially with respect to the composition ratio. In addition, the averaged evaporation heat transfer characteristics of R32, R1234ze(E)/R32 (85%/15%), and R1234ze(E) are compared by considering the European Union (EU) regulations for global warming potential (GWP). For regulation phase A (GWP > 750), R32 exhibits the best heat transfer performance, whereas for regulation phase B (GWP > 150), R1234ze(E) shows a favorable averaged heat transfer coefficient compared to R410A and R134a. Finally, based on the measured data, correlations for the Nusselt number and two-phase friction factor for R1234ze(E)/R32 are derived as a function of composition ratio using a nonlinear interpolation method with the pre-developed correlations for pure R1234ze(E) and R32. (C) 2019 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | LOW GWP REFRIGERANT | - |
dc.subject | PERFORMANCE-TEST | - |
dc.subject | ALTERNATIVES | - |
dc.subject | CONDENSATION | - |
dc.subject | MIXTURES | - |
dc.subject | R134A | - |
dc.subject | LIQUID | - |
dc.subject | R404A | - |
dc.subject | R410A | - |
dc.subject | PUMP | - |
dc.title | Evaporation heat transfer and pressure drop characteristics of R1234ze(E)/R32 as a function of composition ratio in a brazed plate heat exchanger | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Yongchan | - |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2019.06.004 | - |
dc.identifier.scopusid | 2-s2.0-85066927825 | - |
dc.identifier.wosid | 000479021600018 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.140, pp.216 - 226 | - |
dc.relation.isPartOf | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | - |
dc.citation.volume | 140 | - |
dc.citation.startPage | 216 | - |
dc.citation.endPage | 226 | - |
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 | LOW GWP REFRIGERANT | - |
dc.subject.keywordPlus | PERFORMANCE-TEST | - |
dc.subject.keywordPlus | ALTERNATIVES | - |
dc.subject.keywordPlus | CONDENSATION | - |
dc.subject.keywordPlus | MIXTURES | - |
dc.subject.keywordPlus | R134A | - |
dc.subject.keywordPlus | LIQUID | - |
dc.subject.keywordPlus | R404A | - |
dc.subject.keywordPlus | R410A | - |
dc.subject.keywordPlus | PUMP | - |
dc.subject.keywordAuthor | Refrigerant mixture | - |
dc.subject.keywordAuthor | R32 | - |
dc.subject.keywordAuthor | R1234ze(E) | - |
dc.subject.keywordAuthor | Heat transfer | - |
dc.subject.keywordAuthor | Pressure drop | - |
dc.subject.keywordAuthor | Plate heat exchanger | - |
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