A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Brandgasintraengning Genom Taksprickor I Skyddsrum (Leakage of Fire Gases into Basement Shelters through Ceiling Cracks)
The investigation was performed in a series of experiments: with a basement shelter, a fire room above and a concrete slab between the rooms. The ceiling cracks were simulated by rows of holes in the ceiling slab. In the series the fire and the number of open and fuel covered holes were varied. Two pairs of experiments were performed at various wind conditions outside the fire room opening. At the experiments were measured i.a. carbon monoxide (CO), the optical density of smoke (OD) and the temperature in the shelter. In most experiments the difference of gas pressure between the upper and lower side of a ceiling hole was measured. In five of the twelve experiments a harmful level of CO (max 570 ppm) was measured in the middle of the shelter. The effect of the wind pressure at the fire room opening was found to be important.
Brandgasintraengning Genom Taksprickor I Skyddsrum (Leakage of Fire Gases into Basement Shelters through Ceiling Cracks)
The investigation was performed in a series of experiments: with a basement shelter, a fire room above and a concrete slab between the rooms. The ceiling cracks were simulated by rows of holes in the ceiling slab. In the series the fire and the number of open and fuel covered holes were varied. Two pairs of experiments were performed at various wind conditions outside the fire room opening. At the experiments were measured i.a. carbon monoxide (CO), the optical density of smoke (OD) and the temperature in the shelter. In most experiments the difference of gas pressure between the upper and lower side of a ceiling hole was measured. In five of the twelve experiments a harmful level of CO (max 570 ppm) was measured in the middle of the shelter. The effect of the wind pressure at the fire room opening was found to be important.
Brandgasintraengning Genom Taksprickor I Skyddsrum (Leakage of Fire Gases into Basement Shelters through Ceiling Cracks)
R. Jansson (author) / B. Onnermark (author) / L. E. Altvall (author)
1990
31 pages
Report
No indication
English