Consequence Modeling of Dynamic Source Terms

While several dispersion modeling tools provide modeling tools for static situations, it is challenging to model conditions when there are several variables continually changing.  This paper discusses several modeling approaches to solve the source term of a release event, including:  modeling of vapor from an outdoor pit while simultaneously filling and draining; tracking the concentration of vapor inside of a structure; accounting for heat of solution of a leak of strong acid while deluge is applied; and modeling the output from a scrubber given a dynamic input stream.

Upon development of the source term, a method for applying the source term to common dispersion modeling packages is explained.