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Comparison of results from large-scale and small-scale tunnel experiments.
- Source :
-
Fire Safety Journal . Jan2018, Vol. 95, p135-144. 10p. - Publication Year :
- 2018
-
Abstract
- A series of 1:20 small-scale tunnel experiments have been carried out as a scaled down representation of a previously undertaken large-scale heavy goods vehicle (HGV) cargo load tunnel fire experiment. The small-scale tunnel has dimensions of 0.365 m (W) × 0.260 m (H) × 11.9 m (L) and a maximum forced ventilation velocity of 0.68 m/s is adopted corresponding to the velocity of 3 m/s used at large-scale. A gas burner and cribs constructed of medium density fireboard (MDF) have been used as the fuel sources with temperatures, heat release rate (HRR) and velocity data recorded in the small-scale tunnel experiments. A scaled down HRR curve derived from the large-scale experiment was reproduced by the gas burner. Temperatures in the small-scale gas burner experiment can effectively represent those at large-scale during the fire growth and decay stages although measurements at the fully developed stage are lower than the results from the large-scale tunnel experiment. In the small-scale tunnel experiments using the cribs time delays are applied to correct the recorded data in order to obtain the instantaneous HRR. Temperature profile comparisons between the small-scale crib and large-scale HGV cargo load experiments are not applicable since the HRR curves from the crib experiments only approximately reproduce the large-scale HRR profile. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03797112
- Volume :
- 95
- Database :
- Academic Search Index
- Journal :
- Fire Safety Journal
- Publication Type :
- Academic Journal
- Accession number :
- 127671871
- Full Text :
- https://doi.org/10.1016/j.firesaf.2017.10.009