CaCO3 micro particle-based radiative cooling device without metal reflector for entire day
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lim, Hangyu | - |
dc.contributor.author | Chae, Dongwoo | - |
dc.contributor.author | Son, Soomin | - |
dc.contributor.author | Ha, Jisung | - |
dc.contributor.author | Lee, Heon | - |
dc.date.accessioned | 2022-09-24T01:40:41Z | - |
dc.date.available | 2022-09-24T01:40:41Z | - |
dc.date.created | 2022-09-23 | - |
dc.date.issued | 2022-08 | - |
dc.identifier.issn | 2352-4928 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/143816 | - |
dc.description.abstract | Conventional cooling systems such as air conditioners should be replaced, because they consume a substantial amount of energy and cause environmental pollution. In this context, radiative cooling systems are emerging as an alternative, as they perform cooling without consuming energy or causing environmental pollution. However, most radiative coolers explored thus far include metals such as silver used as solar reflectors, thereby entailing problems in terms of practicality, mass production, cost, and light pollution. In this study, obtaining clue from seashells, we propose micro-particle-based radiative cooling based on calcium carbonate (CaCO3), i.e., the main component of seashells. This approach utilizes the high-energy band gap of CaCO3 for high-performance radi-ative cooling. As the cooler has only a single layer of a CaCO3 composite without any metal reflector, it is mass-producible, cheap, and does not cause light pollution. To demonstrate the cooling performance of the CaCO3-based radiative cooler, its optical properties and temperature changes are measured and compared with those of commercial white paint. As a result, it is demonstrated that the CaCO3-based radiative cooler has a cooling power of 93.1 W/m(2) and can lower the temperature by an average of 6.52 degrees C and 3.38 degrees C under ambient temperatures in daytime and nighttime, respectively. Therefore, it can be used as a radiative cooler throughout the day. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | CALCIUM-CARBONATE | - |
dc.subject | MECHANICAL-PROPERTIES | - |
dc.subject | VATERITE | - |
dc.title | CaCO3 micro particle-based radiative cooling device without metal reflector for entire day | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Heon | - |
dc.identifier.doi | 10.1016/j.mtcomm.2022.103990 | - |
dc.identifier.scopusid | 2-s2.0-85134655704 | - |
dc.identifier.wosid | 000836160200001 | - |
dc.identifier.bibliographicCitation | MATERIALS TODAY COMMUNICATIONS, v.32 | - |
dc.relation.isPartOf | MATERIALS TODAY COMMUNICATIONS | - |
dc.citation.title | MATERIALS TODAY COMMUNICATIONS | - |
dc.citation.volume | 32 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | CALCIUM-CARBONATE | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | VATERITE | - |
dc.subject.keywordAuthor | Radiative cooling | - |
dc.subject.keywordAuthor | Micro-particle | - |
dc.subject.keywordAuthor | Broadband mid-IR emitter | - |
dc.subject.keywordAuthor | Atmospheric transparency window | - |
dc.subject.keywordAuthor | Passive cooling | - |
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.