Chemfire : a zone model for predicting chemical effects of pool fire in a single forced ventilation enclosure

Sylvain Brohez (1) , Christian Delvosalle (1) , Guy Marlair (2)

1 Department of Chemical Engineering
2 INERIS - Institut National de l'Environnement Industriel et des Risques

Zone models have been developed since the early 60s for the prediction of fire parameters such as smoke temperature, smoke filling and movement in multi-compartment buildings. Unfortunately, one major difficulty in current zone models is that heat and chemical species release rates in relation with a given fire source term are usually to be provided as input data. A new zone model for prediction of thermal and chemical effects of pool fire in a forced ventilated enclosure has been developed. The novelty of the approach relies in particular on the provision of three sub-models that are used for reducing the number of input data needed for a given simulation. The burning rate history of liquid pool fire is calculated from a vaporisation sub-model. A solid flame sub-model is used for predicting radiative properties of flame. Yields of chemical species are estimated from a dedicated sub-model of combustion. This zone model has received some validation for use in forced ventilated enclosures only. Promising results have been obtained.

Domains: Engineering Sciences [physics]

Sylvain Brohez, Christian Delvosalle, Guy Marlair. Chemfire : a zone model for predicting chemical effects of pool fire in a single forced ventilation enclosure. 4. Mediterranean combustion Symposium, Oct 2005, Lisbonne, Portugal. pp.NC. ⟨ineris-00972509⟩