Integration of Boiling Liquid Expanding Vapour Explosion (BLEVE) RiskModel with Process Simulator for Inherent Safety Design

The aim of this project is to develop an interface that able to integrate process
simulation (e.g. HYSYS) for estimating the risk owing to the phenomenon of
Boiling Liquid Expanding Vapour Explosion (BLEVE). The overall integration
network is divided into three stages - (1) HYSYS-ME Interface, (2) mathematical
calculation under ME platform and (3) VB-ME Interface. Within HYSYS-ME
interface, two models were programmed under steady state simulation. The first
model was a storage tank applied for a given problem (Roberts M. W., 2000), while
the second model correspond to case study onVessel V-2408 ofMalaysia LNG Dua
Sdn. Bhd. For the second stage, three measures ofthe BLEVE consequences - blast,
fireball and missile effect, have been considered. The blast effect is estimated based
on the established relationship between overpressure and effects, the fireball effect
estimated using the thermal intensity and the missile effect is estimated with respect
to the distance travel. For the last stage, VB-ME Interface was used to display the
BLEVE parameters and effects that were calculated in the previous stage. Overall,
this project can be used to evaluation the BLEVE effects on the chemical process
operation. Further improvements are necessary to commercialize and integrate this
project with other risk effects estimation.