Effects of Humidity on Thermal Comfort in Office Space : Part 1-Sucjective Thermal Sensation at the Different Combinations of Air Temperature and Humidity

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  • オフィス空間における湿度が熱的快適性に与える影響に関する研究 : 第1報-空気温度・相対湿度の組合せによる温冷感の違い
  • オフィス クウカン ニ オケル シツド ガ ネツテキ カイテキセイ ニ アタエル エイキョウ ニ カンスル ケンキュウ ダイ1ポウ クウキ オンド ソウタイ シツド ノ クミアワセ ニ ヨル オンレイカン ノ チガイ

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Abstract

Subjective experiments were conducted in order to evaluate the effects of air temperature and humidity on subjective thermal comfort. Three levels of air temperature, 25℃, 28℃, 30℃ were set. Three humidity conditions, 30%RH, 50%RH, 70%RH were examined for each air temperature. The effects of air humidity were great at high air temperature or high humidity, although those were found to be moderate under the thermally neutral conditions. Subjective humidity sensation were not affected by the air temperature at 30%RH and 50%RH. No differences were obtained among conditions in odour intensity, acceptability of odour, and BUT. The results gotten in these experiments were conpaired with the data obtained in the subjective experiments carried out at Waseda University by Tanabe and Kimura and the subjective experiments at KSU by Rohles et al. The higher correlations between SET* and subjective thermal sensation vote and between SET^* and comfort sensation vote were found than between PMV and thermal sensation and between PMV and comfort sensation vote. It is concluded that the effects of humidity on thermal comfort can be estimated by using SET^*.

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