fnctId=bbs,fnctNo=558
- 글번호
- 104989
- 작성일
- 2023.05.31
- 수정일
- 2023.05.31
- 작성자 김애란
- 조회수
- 418
[세미나] 전문가 초청 세미나 개최 안내 (2023.06.07(수) 오후5시)
인하대학교 일반대학원 스마트디지털엔지니어링 에는 아래와 같이 세미나를 개최하오니 많은 관심 부탁드립니다.
1. 연사: 중앙대학교 첨단소재공학과 유영재 교수
2. 제목: Passive Radiative Cooling using Polymer Structuring
3. 일시: 6월 7일 수요일 오후 5시 60주년 206호
4. 초록: While most selective emitter materials are inadequate or inappropriate for building
applications, here we present a techno-economically viable optical coating by
integrating glass bubbles within a polymer film. A controlled glass bubble volume
concentration from 0 to 70% leads to a selective solar reflectivity increase from 0.06
to 0.92 while the mid-infrared emissivity remains above 0.85. Outdoor measurements
show the polymer coating on a concrete surface can provide a temperature reduction
up to 25 °C during the day when conduction and convection are limited and a net
cooling power greater than 78 W/m2 at a cost less than $0.005/W. The impact of
polymer coating on common buildings is estimated as potential annual energy savings
of 2–12 MJ/m2 and CO2 emission savings of 0.3–1.5 kg/m2. More savings are
expected for higher surface-area-to-volume-ratio buildings, and the polymer coating is
also expected to resolve cooling issues for old buildings with no air conditioning
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