A survey of the thermal environment and comfort evaluation of workers inside offices during periods of requested power saving

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  • 節電要請期のオフィス内温熱環境と勤務者の快適性評価に関する調査
  • セツデン ヨウセイキ ノ オフィス ナイ オンネツ カンキョウ ト キンムシャ ノ カイテキセイ ヒョウカ ニ カンスル チョウサ

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Abstract

<p>To investigate the relationship between thermal environment and sensation, onsite measurements and questionnaire surveys were conducted in nine office floors in Tokyo and Gifu during the summer, autumn, and winter of 2013. A total of 650 office workers responded to questionnaires on thermal sensation. The main findings are as follows: (1) the environment in most floors were within the criterion of the Law for Maintenance of Sanitary Environment in Buildings for Japan, and most average Predicted Mean Vote (PMV) values were within the comfort range specified in ISO7730; (2) The approximate clo (clothing insulation) values of workers are 0.5 clo in summer, 0.6 in autumn, and 0.8 in winter. Throughout all the seasons, male clo values are significantly higher than those of females; (3) For realizing a more thermally comfortable office environment, it is necessary to consider measures for male who feel “hot” in summer, and female who feel “dryness” in winter.</p>

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