운전조건 변화에 따른 이산화탄소 열펌프의 냉난방 성능특성 비교
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김용찬 | - |
dc.contributor.author | 조홍현 | - |
dc.contributor.author | 백창현 | - |
dc.contributor.author | 이응찬 | - |
dc.contributor.author | 강훈 | - |
dc.date.accessioned | 2021-09-09T13:37:41Z | - |
dc.date.available | 2021-09-09T13:37:41Z | - |
dc.date.created | 2021-06-17 | - |
dc.date.issued | 2008 | - |
dc.identifier.issn | 1226-4881 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/124662 | - |
dc.description.abstract | Since operating conditions are significantly different for heating and cooling mode operations in a CO₂ heat pump system, it is difficult to optimize the performance of the CO₂ cycle. In addition, the performance of a CO₂ heat pump is very sensitive to outdoor temperature and gascooler pressure. In this study, the cooling and heating performances of a variable speed CO₂ heat pump with a twin-rotary compressor were measured and analyzed with the variations of EEV opening and compressor frequency. As a result, the cooling and heating COPs were 2.3 and 3.0, respectively, when the EEV opening was 22%. When the optimal EEV openings for heating and cooling were 28% and 16%, the cooling and heating COPs increased by 3.3% and 3.9%, respectively, over the COPs at the EEV opening of 22%. Beside, the heating performance was more sensitive to EEV opening than the cooling performance. As the compressor speed decreased by 5 Hz, the cooling COP increased by 2%, while the heating COP decreased by 8%. | - |
dc.language | Korean | - |
dc.language.iso | ko | - |
dc.publisher | 대한기계학회 | - |
dc.title | 운전조건 변화에 따른 이산화탄소 열펌프의 냉난방 성능특성 비교 | - |
dc.title.alternative | Cooling and Heating Performances of a CO₂ Heat Pump with the Variations of Operating Conditions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | 김용찬 | - |
dc.identifier.bibliographicCitation | 대한기계학회논문집 B, v.32, no.6, pp.454 - 462 | - |
dc.relation.isPartOf | 대한기계학회논문집 B | - |
dc.citation.title | 대한기계학회논문집 B | - |
dc.citation.volume | 32 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 454 | - |
dc.citation.endPage | 462 | - |
dc.type.rims | ART | - |
dc.identifier.kciid | ART001254001 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | Carbon Dioxide(이산화탄소) | - |
dc.subject.keywordAuthor | Transcritical Cycle(초월임계 사이클) | - |
dc.subject.keywordAuthor | Coefficient of Performance(COP | - |
dc.subject.keywordAuthor | 성능계수) | - |
dc.subject.keywordAuthor | Electronic Expansion Valve(EEV | - |
dc.subject.keywordAuthor | 전자팽창밸브) | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.