Patent ID: 8407030
Filing Date: 2013-03-26
Classification: G08B

Abstract:
1. A method for determining with a computer a time course of an accident which occurs inside a risk-prone installation in which at least one process takes place, characterized in that it comprises: a step for determining a source term which identifies a source emitting a substance, the source term comprising a rate datum, at the source, of the substance emitted by the source, the source term being determined from process data representative of a process which take place in the installation, from geometrical data of the installation and from measurement data which identify a position of the source and a nature of the emitted substance, said step of determining being carried out by means of a determination module of said computer, a step for calculating, in real time, amounts of the substance present in the installation, from said rate and said geometrical data of the installation, said step for calculating being carried out by means of a calculation module of said computer, and a diagnostic step carried out by means of a diagnosis module of said computer, wherein: a) time course data of the delivered amounts of the substance are calculated at the end of the calculation step, the time course data comprising, a datum from an estimation of an integrated amount of the substance which takes into account an estimated travel time required by an operator for covering an intervention path, a time for performing an intervention and a return time, and b) the calculated time course date are compared with reference criteria for delivering a datum of feasibility or non-feasibility of intervention in the installation.