Evaluation of cooling effects: outdoor water mist fan

Autor: Craig Farnham, Kazuo Emura, Takeo Mizuno
Rok vydání: 2015
Předmět:
Zdroj: Building Research & Information. 43:334-345
ISSN: 1466-4321
0961-3218
DOI: 10.1080/09613218.2015.1004844
Popis: Evaporative spray cooling systems can be used to provide thermal relief on hot days, even in a subtropical climate such as in Japan. An experiment combining a water mist spray with a fan was conducted to cool an outdoor space and ascertain the comfort of 141 participants on hot summer days. Each participant was surveyed for ‘thermal sensation', ‘general comfort' and ‘feeling of wettedness' and skin temperature was measured before and after entering a mist. To characterize more directly the cooling effect of this particular mist system, a dry silicone rubber skin analogue including embedded heat flux sensors was heated to near-body temperature to measure the near-surface heat flux due to natural convection, forced convection by the fan alone, and the fan and mist together. It was found that the cooling effect of the mist and fan combination is highly efficient and easily exceeds the thermal load of pedestrians, yielding nearly instant decreases in skin temperature. Such outdoor technology has potential to ...
Databáze: OpenAIRE
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