熱伝導を考慮した床暖房の快適性評価に関する研究

概要

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The purpose of this paper is to clarify the effect of air temperature and floor temperature on the occupants1 comfort sensation in the hot water floor heating system. This paper also considers the contact areas between floor and human body to quantitatively determine the heat conduction between the floor and the subjects. The present study deals with the effect of heat conduction with regard to modified mean skin temperature. The subjects (7 female college students) were exposed to the following conditions : combinations of air temperatures (18℃,23℃) and water temperatures (25℃,30℃,35℃,40℃,45℃) in still air and RH 40% . The subjects were exposed to these conditions while sitting on the floor, sitting on a chair and lying on the floor. The following results were obtained: The skin temperature of the body parts in contact with the floor was affected by the floor temperature. The thermal sensation vote was neutral at a mean skin temperature of 33℃. Levels of thermal comfort and acceptability of the floor temperature was rated as 'satisfactory' at globe temperatures above 20℃. The permissable comfort level of the floor temperature was found to be approximately 25℃ at globe temperature 20℃. New weighting coefficients to calculate mean skin temperature are derived on the basis of Hardy & DuBois formula.
社団法人日本建築学会の論文
2000-10-30