Inactivation of airborne microbial contaminants by a heat-pump-driven liquid-desiccant air-conditioning system
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jae-Hee | - |
dc.contributor.author | Bang, Jong-Il | - |
dc.contributor.author | Sung, Minki | - |
dc.contributor.author | Jeong, Jae-Weon | - |
dc.date.accessioned | 2022-07-19T05:04:25Z | - |
dc.date.available | 2022-07-19T05:04:25Z | - |
dc.date.created | 2022-03-07 | - |
dc.date.issued | 2022-06 | - |
dc.identifier.issn | 2352-7102 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/170161 | - |
dc.description.abstract | The COVID-19 pandemic has led to increasing interest in controlling airborne virus transmission during the operation of air-conditioning systems. Therefore, beyond an examination of the ability of liquid-desiccant material itself to inactivate microbes, a heat-pump-driven liquid-desiccant air-conditioning system was proposed and constructed to experimentally investigate the effect of liquid-desiccant solution on the inactivation of airborne bacteria and fungi in various air-conditioning processes. The proposed system comprises a liquid-desiccant unit to dehumidify or humidify process air using a desiccant-solution and heat-pump unit to cool or heat it and accommodate solution thermal loads. The decrease in the concentration of airborne bacteria and fungi before and after passing through the system (i.e., inactivation efficiency) were compared for the base, summer, and winter operating modes. The results indicated that airborne fungi were less inactivated than bacteria because they possess more stress-resistant cellular structures that resist inactivation. During the air-conditioning processes in both the summer and winter operating modes, the bacterial and fungal inactivation efficiencies improved compared to the base mode owing to the contact with desiccant solution. The higher solution flow rate and solution temperature improved the bacterial inactivation efficiency by 27% for the winter compared to the summer mode. Conversely, because of possible growth of fungi in the heated and humidified supply air in the winter, the fungal inactivation efficiency improved by only 1.5% for the winter compared to the summer mode. In conclusion, the proposed system can contribute to control the airborne transmission of microbial contaminants while operating air-conditioning systems. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier Ltd | - |
dc.title | Inactivation of airborne microbial contaminants by a heat-pump-driven liquid-desiccant air-conditioning system | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jeong, Jae-Weon | - |
dc.identifier.doi | 10.1016/j.jobe.2022.104157 | - |
dc.identifier.scopusid | 2-s2.0-85124023912 | - |
dc.identifier.wosid | 000819832700005 | - |
dc.identifier.bibliographicCitation | Journal of Building Engineering, v.50, pp.1 - 14 | - |
dc.relation.isPartOf | Journal of Building Engineering | - |
dc.citation.title | Journal of Building Engineering | - |
dc.citation.volume | 50 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 14 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Construction & Building Technology | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Construction & Building Technology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Civil | - |
dc.subject.keywordPlus | Air conditioning | - |
dc.subject.keywordPlus | Bacteria | - |
dc.subject.keywordPlus | Driers (materials) | - |
dc.subject.keywordPlus | Efficiency | - |
dc.subject.keywordPlus | Heat pump systems | - |
dc.subject.keywordPlus | Humidity control | - |
dc.subject.keywordPlus | Liquids | - |
dc.subject.keywordPlus | Pumps | - |
dc.subject.keywordPlus | Transmissions | - |
dc.subject.keywordPlus | Viruses | - |
dc.subject.keywordPlus | Airborne bacteria | - |
dc.subject.keywordPlus | Airborne fungi | - |
dc.subject.keywordPlus | Desiccant air-conditioning systems | - |
dc.subject.keywordPlus | Heat pumps | - |
dc.subject.keywordPlus | Inactivation effect | - |
dc.subject.keywordPlus | Inactivation efficiency | - |
dc.subject.keywordPlus | Liquid desiccant | - |
dc.subject.keywordPlus | Liquid desiccant air-conditioning | - |
dc.subject.keywordPlus | Liquid-desiccant air-conditioning system | - |
dc.subject.keywordPlus | Microbial contaminant | - |
dc.subject.keywordPlus | Fungi | - |
dc.subject.keywordAuthor | Airborne bacteria | - |
dc.subject.keywordAuthor | Airborne fungi | - |
dc.subject.keywordAuthor | Inactivation effect | - |
dc.subject.keywordAuthor | Liquid-desiccant air-conditioning system | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S235271022200170X?via%3Dihub | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
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.