- Author
- Takeda, H. | Nakaya, I. | Akita, K.
- Title
- Experimental Study of Small Enclosure Fire With Liquid Fuel.
- Coporate
- Tokyo Univ.
- Journal
- Bulletin of Japanese Association of Fire Science and Engineering, Vol. 28, No. 2, 19-24, 1978
- Report
- CIB W14/79/29 (J),
- Keywords
- small scale fire tests
- Abstract
- For making clear the effects of ventilation opening and fuel surface on fires in enclosure, small scale model fires were studied experimentally by using methanol as a fuel. The behavior of fire was observed in detail, and the burning rate of liquid fuel and the temperature in enclosure were measured. According to these results, the behavior of model fires changes gradually from a quasi-steady burning, at which flame attaches to the opening edge, to a stable fully developed fire with the increase of opening area of the enclosure. an oscillatory burning also appears at a transient region. The average temperature in enclosure increases with the ventilation parameter A times the square root of H in similar to that of the burning rate of fuel, while the temperature decreases with the surface areas of fuel tray. In the present study, these experimental results were summarized by the use of a dimensionless ventilation parameter which was defined as a ratio of the rate of air entrainment through the opening to the maximum burning rate of fuel. Using this dimensionless parameter, both burning rate and average temperature do not depend favorably on the surface areas of the fuel tray and the size of enclosure, and so the ventilation controlled regime in enclosure fires can be determined definitely. (Abstract in English)