Abstract
The purposes of this study are; 1) To develop the measuring method of ventilation-routes and their quantities of ventilation in multi-space building using tracer-gas of CO_2. 2) To know the actual conditions of ventilation between the various spaces in the house. 3) To find the problems and their solutions for retrofittings of a Japanese traditional wooden house. In this paper, the measuring method and reliabilities of the results are described. The summary of this study is as follows : 1) Supplying the tracer-gas on the pulsive generation in one of multi-spaces, the responce of concentration appears in the other room with timelag. 2) Integrated value of this responce of concentration is proportionate to the regular concentration with regular supplying of the tracer-gas. 3) The auther defines the Sogo-shin-nyu-ritsu (total infiltration coefficient) U_<ak>=C_k/C_a, the integrated value of concentrational responce ratio of the room-A, where the tracer-gas is pulsively generated (C_a), to the other room-K (C_k). 4) The Sogo-shin-nyu-ritsu U_<ak> shows the ratio of the total quantity of ventilation at the room-K to infiltration quantity from the room-A. 5) By changing the generating room of the tracer-gas, the matrix of Sogo-shin-nyu-ritsu can be obtained. 6) By solving this matrix of Sogo-shin-nyu-ritsu, the Chokusetsu-shin-nyu-ritsu, ventilation-routes and their quantities will be obtained.
