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Abstract: The explosion ability of wood dust was characterized by a 20 L explosion sphere (Kühner). The overpressure inside the sphere is recorded during the explosion. The results show that the violence of the explosion is all the more important that the particle size is low. A model based on balances on chemical reaction, kinetics and thermodynamics leads to the representation of the pressure change during the explosion. There is a good agreement between the calculations and the experiments. [Copyright &y& Elsevier]

The aim of this article is to contribute to the qualitative description of the phenomena occurring during the clogging of fibre filters by submicron liquid particles. The changes in the pressure drop and efficiency of the filtration media in relation to the generated aerosol mass per unit area were monitored simultaneously. The different experimental approaches described converge on the same description of filter clogging, the scenario being broken down into four steps. A study of the influence of the operating conditions was carried out which highlighted the significant roles of filtration velocity, the nature of the filter, and the physico-chemical characteristics of the aerosol. [Copyright &y& Elsevier]