- Author
-
Hagglund, B.
|
Nireus, K.
|
Werling, P.
- Title
- Effects of Inlets on Natural Fire Vents: An Experimental Study.
- Coporate
- National Defence Research Establishment, Stockholm, Sweden
- Report
-
FOA-R-96-00246-2.4-SE,
May 1996,
100 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
vents
|
fire protection
|
ventilation
|
smoke filling
|
methanol
|
fire gases
|
instruments
|
smoke
|
smoke layers
|
temperature rise
|
ceiling vents
- Abstract
- The influence of inlet openings on natural fire vents was studied. Experimental smoke-filling tests were carried out in a single-storey building. Trays of methanol were burnt. The fire gases were made visible by the use of artificial smoke added to the fire plume. The experimental study mainly concerned the effects on vents by varying the position and distribution of the inlet openings near the floor. In particular the effects of dividing the building into two reservoirs by a smoke curtain were considered where the inflow of air into the fire reservoir was provided by the ceiling vents of the adjacent reservoir. The tendencies of the effects of inlets on fire vents traced from the experimental work are described in the report. The tendencies should be compared with the results of CFD calculations.