- Author
-
Naruse, T.
|
Sugahara, S.
- Title
- Study on the Deterministic Properties of Fire Plumes.
- Coporate
- Tokyo Univ., Japan
- Journal
-
Bulletin of Japanese Association of Fire Science and Engineering,
Vol. 44,
No. 1/2,
25-37,
1996
- Keywords
-
fire plumes
|
turbulent flames
|
diffusion flames
|
flame height
|
experiments
|
equations
|
heat release rate
|
temperature
|
velocity
- Abstract
- [ABSTRACT IN ENGLISH] A lot of studies on fire plumes formed above fire sources have been carried out in the field of building fire analyses. There are two methods to define the boundaries of continuous, intermittent and plume regions of turbulent diffusion flames. One is to be decided from flame height. And the other is to be decided from the properties of fire plumes on the basis of the classical theory on the point-source plumes. The relationship between them had been ambiduous, and we proposed the following models of virtual source locations resulted from the pase experimental works. In order to ensure these models, several experiments were performed by using 0.14 m or 0.2 m square burner with LPG or LNG fuels. Flame heights were recorded by video tape recorder, and the centerline temperatures and velocities were recorded for 5 minutes at 5 seconds interval in a steady state.