globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2001678117
论文题名:
Membrane-assisted radiant cooling for expanding thermal comfort zones globally without air conditioning
作者: Teitelbaum E.; Chen K.W.; Aviv D.; Bradford K.; Ruefenacht L.; Sheppard D.; Teitelbaum M.; Meggers F.; Pantelic J.; Rysanek A.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:35
起始页码: 21162
结束页码: 21169
语种: 英语
英文关键词: Energy efficiency ; Photonics ; Radiant cooling ; Thermal comfort
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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164066
Appears in Collections:气候变化与战略

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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 of California, Berkeley, CA 94720, United States; Meggers, F., School of Architecture, Princeton University, Princeton, NJ 08544, United States, Andlinger Center for Energy and the Environment, Princeton University, Princeton, NJ 08544, United States; Pantelic, J., Berkeley Education Alliance for Research in Singapore138602, Singapore, gCenter for the Built Environment, University of California, Berkeley, CA 94720, United States; Rysanek, A.

Recommended Citation:
Teitelbaum E.,Chen K.W.,Aviv D.,et al. Membrane-assisted radiant cooling for expanding thermal comfort zones globally without air conditioning[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(35)
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