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Buildings 2015, 5(3), 1037-1054; doi:10.3390/buildings5031037

Adaptive Thermal Comfort in Japanese Houses during the Summer Season: Behavioral Adaptation and the Effect of Humidity

1
Department of Restoration Ecology and Built Environment, Faculty of Environmental Studies, Tokyo City University, 3-3-1 Ushikubo-nishi, Tsuzuki-ku, Yokohama 224-8551, Japan
2
School of Architecture, Faculty of Technology, Design and Environment, Oxford Brookes University, Headington Campus, Gipsy Lane, Oxford OX3 0BP, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Tri Harso Karyono
Received: 3 August 2015 / Revised: 29 August 2015 / Accepted: 29 August 2015 / Published: 11 September 2015
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Abstract

In order to clarify effect of humidity on the room temperatures reported to be comfortable, an occupant thermal comfort and behavior survey was conducted for five summers in the living rooms and bedrooms of residences in the Kanto region of Japan. We have collected 13,525 thermal comfort votes from over 239 residents of 120 homes, together with corresponding measurements of room temperature and humidity of the air. The residents were generally well-satisfied with the thermal environment of their houses, with or without the use of air-conditioning, and thus were well-adapted to their thermal conditions. The humidity was found to have very little direct effect on the comfort temperature. However, the comfort temperature was strongly related to the reported skin moisture. Behavioral adaptation such as window opening and fan use increase air movement and improve thermal comfort. View Full-Text
Keywords: dwellings; summertime; humidity; skin moisture; comfort temperature; occupant behavior dwellings; summertime; humidity; skin moisture; comfort temperature; occupant behavior
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Rijal, H.B.; Humphreys, M.; Nicol, F. Adaptive Thermal Comfort in Japanese Houses during the Summer Season: Behavioral Adaptation and the Effect of Humidity. Buildings 2015, 5, 1037-1054.

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