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A study on cognitive temperature scale with thermal discomfort of elementary students in summer in Sapporo and Kumamoto.

Number: 813

Author(s) : SAITO M., TSUJIHARA M., MACHIGUCHI T., et al.

Summary

An experimental study on cognitive temperature scale with thermal discomfort of elementary students in Sapporo and Kumamoto in Japan was made in hot and humid summer from 2009 to 2011. Students put a red colored sticker and they answered its associated cognitive temperature scale on their individual thermal diary before their lunch if they felt thermal discomfort; that means too hot not to be well for their morning class. On the other hand, they put a blue colored sticker if they could study well without thermal discomfort. Based upon the results, we first found that the classroom air temperatures when 30 % of students put the red in Sapporo versus Kumamoto were 25.2 degree-C versus 28.5 degree-C, respectively. Second, almost half of cognitive temperature scale for the students which felt thermal discomfort was slightly higher than those which they could study well. Finally, we made it clear by logistic regression analysis on the relationships among probability of appearance of thermal discomfort for the outdoor air temperature, the room air temperature, and their cognitive temperature scale. Due to the room air temperature and their cognitive temperature scale rise, the probability of appearance of their thermal discomfort also increased both in Kumamoto and Sapporo. Especially in Sapporo, when 80 % of probability of appearance of thermal discomfort was, the room air temperature and the cognitive temperature scale were approximately around 30 degree-C as well. On the other hand in Kumamoto, when 80 % of probability of appearance was, the outdoor air temperature was around 36 degree-C. This temperature difference will give better information for well thermal design and control of regional-indoor climate without air conditioners against hot and humid climate in summer.

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Pages: 10 p.

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Details

  • Original title: A study on cognitive temperature scale with thermal discomfort of elementary students in summer in Sapporo and Kumamoto.
  • Record ID : 30009948
  • Languages: English
  • Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
  • Publication date: 2013/06/16

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