A Method of Optimal Design of Clothing Under Dynamic Thermal Environmental Changes for Providing Better Living Environments
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.38 Vol.38】
ABSTRACT
People now concerns about health effect of thermal environments. Clothing is considered as one of major influential factors on thermal environment around human, in this sense, it is important to understand the thermal effects of clothing for establishing better living environments. Considering dynamic thermal environmental changes in outdoor situations, a method for evaluating thermal states of wearers was examined. Since thermal properties have impact on wearers, firstly, thermal conductivity, heat transfer coefficient, and also radiative properties were measured. Then, experimental method for understanding the relations among environments, thermal properties of clothing, human physiology, and human perceptions was carefully considered and used for measurement. Human energy balance is in general a useful tool for expressing thermal states of human, and in this study a method for clothed human energy balance calculation which is applicable to various environments, clothing ensembles, and human physiological states, was newly developed. Under typical outdoor situations such as solar radiation and wind conditions, the clothed human energy balance was verified by comparing experimental results, and proved with satisfactory accuracy. Finally, we provide a suitable way to think about appropriate clothing for given situations, and at the same time the results of the study also provide a database for designing better living environments with clothing.
DESCENTE SPORTS SCIENCE Vol.38/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
People now concerns about health effect of thermal environments. Clothing is considered as one of major influential factors on thermal environment around human, in this sense, it is important to understand the thermal effects of clothing for establishing better living environments. Considering dynamic thermal environmental changes in outdoor situations, a method for evaluating thermal states of wearers was examined. Since thermal properties have impact on wearers, firstly, thermal conductivity, heat transfer coefficient, and also radiative properties were measured. Then, experimental method for understanding the relations among environments, thermal properties of clothing, human physiology, and human perceptions was carefully considered and used for measurement. Human energy balance is in general a useful tool for expressing thermal states of human, and in this study a method for clothed human energy balance calculation which is applicable to various environments, clothing ensembles, and human physiological states, was newly developed. Under typical outdoor situations such as solar radiation and wind conditions, the clothed human energy balance was verified by comparing experimental results, and proved with satisfactory accuracy. Finally, we provide a suitable way to think about appropriate clothing for given situations, and at the same time the results of the study also provide a database for designing better living environments with clothing.
DESCENTE SPORTS SCIENCE Vol.38/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Yasuhiro Shimazaki*1, Seiji Saito*1, Atsumasa Yoshida*2, Takanori Yamamoto*3 |
|---|---|
| University or institution | *1 Okayama Prefectural University, *2 Osaka Prefecture University, *3 Technology Research Institute of Osaka Prefecture |
Keywords
Thermal comfort, Thermal property, Radiant environment, Wind environment, Human activity