Critical Issues in Short-cut Modelling of Massive Carbon Dioxide Releases
Palazzi, Emilio
Currò, Fabio
Vairo, Tomaso
Fabiano, Bruno

How to Cite

Palazzi E., Currò F., Vairo T., Fabiano B., 2022, Critical Issues in Short-cut Modelling of Massive Carbon Dioxide Releases, Chemical Engineering Transactions, 90, 457-462.


In case of accidental gaseous releases, the detailed analysis of rather complicated situations (partial confinement, irregular shapes, unsteady-state) usually requires the use of sophisticated integral models and/or CFD calculations, but when conservative results are enough, especially in preliminary hazard assessment, analytical models can be conveniently applied. This paper presents a very simple analytical model accounting also for wind effect on accidental release evolution, suitable to be adopted as short-cut evaluation tool in case of accidental carbon dioxide semi-continuous release at high speed (jet), and nearly instantaneous releases from high-pressure systems. It may allow a preliminary evaluation of emergency actions, in case of a massive and deadly release of carbon dioxide from a storage site, or due to natural event, once properly defined the source term and refined for possible thermal effects.