C'stec Corporation

Hiei Kensetsu Corporation

Ishibashi Kenchiku Jimusho Corporation

Kindai Setsubi Sekkei Jimusho Corporation

Tsukio Eto

Akira Ishibashi

Nobutoshi Noguchi

Junji Matsuda

A roomin a building has a living etc. spaceof volume V that is an enclosed space. Ventilation of an air flow F is performed from the outside to the living etc. space. Entering/exiting of air as an air current between the inside of the living etc. spaceand the outside is eliminated, and at least a part of the boundary between the living etc. spaceand the outside is configured from a gas exchange membranehaving a diffusion constant D, a thickness L, and an area A for gas molecules of interest. When air inside the living etc. spaceis sufficiently agitated and the concentration of gas molecules constituting the air is made spatially uniform, &#x3b7;(t) is controlled so as to vary according to B(m/s) is the gas consumption amount inside the living etc. space(t) is the gas concentration inside the living etc. spaceat time t, and &#x3b7;0 is the gas concentration of the outside.

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Saga, Japan

Tsukio Eto