Abstract
In this paper we present a computational fluid dynamics
model for predicting the heat release rates of liquid
pool fires. The model makes use of the one-dimensional
heat transfer solver to provide the liquid surface
boundary condition for the gas phase solver. The in-depth
radiation transport is solved by a one-dimensional
radiation transport model together with effective
absorption coefficients determined from experimental
data. The model accounts for the convective heat transfer
in the liquid phase by modifying the thermal
conductivity. The model is implemented as a boundary
condition in the fire dynamics simulator (FDS). The model
is validated by comparing experimental and predicted
evaporation rates for water and a range of hydrocarbon
fuels. The sensitivity of the results to the modelling
assumptions and model input parameters is studied. The
in-depth heat transfer appears to have a significant
effect on the fire dynamics, except for the peak burning
rates, which depend most importantly on the gas phase
combustion.
Original language | English |
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Pages (from-to) | 95-109 |
Journal | Fire Safety Journal |
Volume | 80 |
DOIs | |
Publication status | Published - 2016 |
MoE publication type | A1 Journal article-refereed |
Keywords
- burning rate
- heat release rate
- pool fire
- fuel absorption
- thermal radiation