水まわり空間を中心とした省エネルギー性と快適性に関する研究 浴槽入浴による熱移動に関する被験者実験とシミュレーション

芹川 真緒; 前 真之; 赤嶺 嘉彦; 佐藤 誠; 岩本 靜男; 倉渕 隆

doi:10.3130/aije.77.143

STUDY ON THE ENERGY PERFORMANCE AND COMFORT IN THE DOMESTIC SANITARY SPACE

Experiment and simulation of heat transfer caused by bathing

Mao SERIKAWA, Masayuki MAE, Yoshihiko AKAMINE, Makoto SATOH, Shizuo IWAMOTO, Takashi KURABUCHI

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Keywords: Bathing, Hot water supply demand, Thermal storage of human body, Thermoregulation-Model, Convective heat transfer of Water

JOURNAL FREE ACCESS

2012 Volume 77 Issue 673 Pages 143-151

DOI https://doi.org/10.3130/aije.77.143

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Abstract

In this research, we investigated the quantitative effect of bathing on the heat loss of hot water in the bathtub and thermal storage of the human body through experiment and simulation using 65-Node thermoregulation-Model applied to bathing. In the experiment, three subjects took a bath four times, with temperature of their tympanic membrane and hot water measured. It turned out that about 700-1200kJ of heat is lost from hot water in the bathtub and about 400-650kJ of heat is charged in human body by twenty minutes bathing.

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