室内空気温・周壁平均温の組み合わせと人体エクセルギー消費の関係

概要

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This paper first describes a further development of exergy balance equation for human body to be able to make a calculation for cases that outdoor relative humidity to be regarded as reference for exergy calculation is different from indoor relative humidity. We made example calculations which articulate the relationship between exergy consumotion within the human body and indoor thermal environmental condition such as room air temperature, humidity and mean radiant temperature. From the exergetic view point, there is the optimal combination of room air temperature and mean radiant temperature, which gives thermally neutral condition, namely PMV^*=0, while, fom the conventional energetic viewpoint, there are many combinations of room air temperature and mean radiant temperature. The lowest exergy consumption rate for a human body with the metabolic rate at 1.0 met and the clothing of 0.9 clo emerges at the indoor environmental condition of room air temperature at 18℃ and mean radiant temperature at 25℃ for winter. This suggests that the use of radiant warm exergy is more effective than the use of convective warm exergy for a heating purpose to realize both thermal comfort and as low human-body exergy consumption rate as possible.
社団法人日本建築学会の論文
2003-08-30