气候变化领域集成服务门户(CCPortal): Membrane-assisted radiant cooling for expanding thermal comfort zones globally without air conditioning

CCPortal

DOI	10.1073/pnas.2001678117
	Membrane-assisted radiant cooling for expanding thermal comfort zones globally without air conditioning
	Teitelbaum E.; Chen K.W.; Aviv D.; Bradford K.; Ruefenacht L.; Sheppard D.; Teitelbaum M.; Meggers F.; Pantelic J.; Rysanek A.
发表日期	2020
ISSN	0027-8424
起始页码	21162
结束页码	21169
卷号	117 期号:35
英文摘要	We present results of a radiant cooling system that made the hot and humid tropical climate of Singapore feel cool and comfortable. Thermal radiation exchange between occupants and surfaces in the built environment can augment thermal comfort. The lack of widespread commercial adoption of radiant-cooling technologies is due to two widely held views: 1) The low temperature required for radiant cooling in humid environments will form condensation; and 2) cold surfaces will still cool adjacent air via convection, limiting overall radiant-cooling effectiveness. This work directly challenges these views and provides proof-of-concept solutions examined for a transient thermal-comfort scenario. We constructed a demonstrative outdoor radiant-cooling pavilion in Singapore that used an infrared-transparent, low-density polyethylene membrane to provide radiant cooling at temperatures below the dew point. Test subjects who experienced the pavilion (n = 37) reported a “satisfactory” thermal sensation 79% of the time, despite experiencing 29.6 ± 0.9 ◦C air at 66.5 ± 5% relative humidity and with low air movement of 0.26 ± 0.18 m·s−1. Comfort was achieved with a coincident mean radiant temperature of 23.9 ± 0.8 ◦C, requiring a chilled water-supply temperature of 17.0 ± 1.8 ◦C. The pavilion operated successfully without any observed condensation on exposed surfaces, despite an observed dew-point temperature of 23.7 ± 0.7 ◦C. The coldest conditions observed without condensation used a chilled water-supply temperature 12.7 ◦C below the dew point, which resulted in a mean radiant temperature 3.6 ◦C below the dew point. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Energy efficiency; Photonics; Radiant cooling; Thermal comfort
语种	英语
scopus关键词	air conditioning; ambient air; Article; cooling; environmental management; environmental temperature; evaporation; Fourier transform infrared spectroscopy; humidity; membrane assisted radiant cooling; polymerization; priority journal; water supply; water temperature
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160827
作者单位	Teitelbaum, E., Singapore-ETH Centre, ETH Zurich, Singapore, 318602, Singapore, School of Architecture, Princeton University, Princeton, NJ 08544, United States, Andlinger Center for Energy and the Environment, Princeton University, Princeton, NJ 08544, United States; Chen, K.W., Andlinger Center for Energy and the Environment, Princeton University, Princeton, NJ 08544, United States; Aviv, D., School of Architecture, Princeton University, Princeton, NJ 08544, United States, Weitzman School of Design, University of Pennsylvania, Philadelphia, PA 19104, United States, eSchool of Architecture and Landscape Architecture, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; Bradford, K., School of Architecture, Princeton University, Princeton, NJ 08544, United States; Ruefenacht, L., Singapore-ETH Centre, ETH Zurich, Singapore, 318602, Singapore; Sheppard, D.; Teitelbaum, M., Berkeley Education Alliance for Research in Singapore138602, Singapore, gCenter for the Built Environment, University ...
推荐引用方式 GB/T 7714	Teitelbaum E.,Chen K.W.,Aviv D.,et al. Membrane-assisted radiant cooling for expanding thermal comfort zones globally without air conditioning[J],2020,117(35).
APA	Teitelbaum E..,Chen K.W..,Aviv D..,Bradford K..,Ruefenacht L..,...&Rysanek A..(2020).Membrane-assisted radiant cooling for expanding thermal comfort zones globally without air conditioning.Proceedings of the National Academy of Sciences of the United States of America,117(35).
MLA	Teitelbaum E.,et al."Membrane-assisted radiant cooling for expanding thermal comfort zones globally without air conditioning".Proceedings of the National Academy of Sciences of the United States of America 117.35(2020).