Improvement of thermal comfort by cooling clothing in warm climate

Tomonori Sakoi, Arsen Krikor Melikov, Sona Kolencíková, Naoto Tominaga

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We developed cooling clothing that utilizes water evaporation and can adjust the cooling intensity according to the user’s preference. The continuous cooling effect is supported by a small supply of clean water, and wet discomfort is prevented by using a textile with waterrepellent silicon coating on the inner surface. We conducted experiments with human subjects in climate chambers maintained at 30 °C and RH 50% to compare the effectiveness of the cooling clothing with that of other convective cooling devices. The use of cooling clothing with a convective cooling device improved the subjects’ thermal comfort compared to convective cooling alone. The supply of a small amount of water allowed the cooling clothing to provide a continuous cooling effect, whereas the effect of convective cooling alone decreased as sweat dried. However, the controllability of the cooling clothing needs to be improved.
Original languageEnglish
Title of host publicationProceedings of Indoor Air 2014
Number of pages8
PublisherInternational Society of Indoor Air Quality and Climate
Publication date2014
Article numberHP0471
Publication statusPublished - 2014
Event13th International Conference on Indoor Air Quality and Climate - University of Hong Kong, Hong Kong, Hong Kong
Duration: 7 Jul 201412 Jul 2014
Conference number: 13


Conference13th International Conference on Indoor Air Quality and Climate
LocationUniversity of Hong Kong
Country/TerritoryHong Kong
CityHong Kong
Internet address


  • Thermal comfort
  • Personal cooling system
  • Clothing
  • Evaporation


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