Abstract
In two model rooms built of steel-plate, “sugi” sticks piled up in parallel crosses were ignited ;
i ) the temperature distributions in each part of the rooms were measured with the thermocouple ; ii ) the discharged flaming gas was taken in the opening, and analyzed with the “Roken” type gas analyzer to find O2 and CO2% basing on which the combustion severity was observed with reference to Diagram 2 ; iii ) and basing on which the rate of combustion was observed with the apparatus shown in Diagram 6.
Assuming that the fire temperature inside the rooms stand at 700°C, and that, where the rate of excess air is 1.0, perfect combustion takes place, and that the coefficient of effectiveness for discharging from jet is 0.7, the result of computation of the combustion rate according to the calculation conform the theory of the ventilation and the combustion is similar to the value obtained from the experiment in the model room.
