Abstract
This paper highlights major steps in the procedure for evaluating
the consequences of accidents involving dangerous substances, especially
during the storage, and loading/unloading activities. The procedure
relies on identifying accident scenarios that could be encountered
at particular plants, followed by a modelling of these scenarios
by means of available modelling systems. Finally, the resultant outcomes
are identified, together with their effects on both people and property.
The resources needed to perform this procedure are discussed, in
order to clarify the roles of plant operators, external experts and
other institutions when evaluating any accident consequences. Four
examples, all relevant in industrial practice, are given in order
to illustrate the procedure: the releasing of liquified petroleum
gas, flammable organic solvents, toxic chlorine, and oil fuels. The
results of these studies may be used for a quick order-of-magnitude
estimation of accidents consequences.
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