2000 年 65 巻 534 号 p. 17-23
This paper describes the relationship between the exergy balance of human body and the associated thermal sensation. The purpose of investigating such balance is to understand exergetic behaviors of human body in relation to the exergy-entropy process of HVAC-systems with various passive means, in which he or she has thermal sensation such as cold or hot. We found that the "warm" exergy and "wet" exergy produced within the human body under cool environment are larger than those under warm environment. As, the environmental condition turns out to be colder, the thermal exergy produced by the metabolism and its consumption rate within the human body become larger. This increase is due to shivering of the human body. The exergy consumption rate under the condition that one feels hot is a little larger than that under the neutral condition. This is considered due to sweating. "Wet" exergy contained by sweat is consumed in the course of evaporation from the skin surface to the environment so that he or she can dispose effectively of the entropy generated due to exergy consumption within the human body.