Eur. Phys. J. AP
Volume 9, Number 3, March 2000
|Page(s)||215 - 225|
|Published online||15 March 2000|
The kerosene explosibility: modelling and application to safety systems
LEES, Université d'Orléans, 63 avenue de Lattre de Tassigny, 18020 Bourges Cedex, France
2 DGA/CEG, 46500 Gramat, France
Revised: 21 January 2000
Accepted: 31 January 2000
Published online: 15 March 2000
The aim of this work is to study the kerosene explosibility in closed or vented vessels and to develop an application to safety systems. The basic characteristics of the model have been developed for the ignition and the combustion of propulsive powders and adapted to liquid fuels with appropriate parameters linked to simplified kinetics. A simple representation of the combustion phenomena based on energy transfers and the action of specific molecular species is presented. The pressure venting, due to the vent breaking is calculated taking into account the mass rate of discharge of the different products in the assumption of the standard orifice equations. The model allows the study of various parameters such as the nature of the kerosene, the fuel ratio of the mixture, the ignition energy, the thermal exchanges and the influence of the pressure venting or the vent area. The theoretical results have been compared with data obtained in the course of experiments performed in small vessel volumes (V0 = 13 and 33 l) and indicate correct preliminary tendencies.
PACS: 05.70.-a – Thermodynamics / 47.27.-i – Turbulent flows, convection, and heat transfer
© EDP Sciences, 2000
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