5. Components of ignition probability
5.1 Presence and efficiency
In simplified terms, for each ignition source, the probability of ignition depends on two components:
the probability that the source is present at the same time as the flammable cloud; this parameter is often referred to in the literature as the "presence factor";
the probability that the source will be of sufficient energy to ignite the cloud over a given time interval; this parameter is often referred to in the literature as the "strength factor".
By way of example, if we consider a low-energy torch whose utilization rate is 20% (i.e. the torch operates 20% of the time), and if we assume that for such a source the probability of the...
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Components of ignition probability
Some data bank values
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