Using CFD Modeling to Predict & Eliminate Pressure Piling Hazards | The Powder Show 2020

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Using CFD Modeling to Predict & Eliminate Pressure Piling Hazards

Damilare Ogungbemide  (Project Consultant, Jensen Hughes)

Location: Booth 3441

Date: Tuesday, October 6

Time: 3:00pm - 3:45pm

Track: Center Stage

Vault Recording: TBD

Pressure piling presents a major explosion hazard in interconnected process vessels. As an explosion in the primary vessel propagates to the secondary vessel through the connecting pipe, the acceleration of the flame through the pipe causes pre-compression of the gas/air in the pipe and the secondary vessel. If there is an ignitable concentration of powder inside the secondary vessel or along the connecting pipe, the flame can ignite the powder. Due to the pre-compression, the explosion in the secondary vessel will be disproportionately more violent than expected, based on the concentration of powder in the vessel. Pressure piling is a complex phenomenon that is difficult to investigate through experimentation. Advanced computational fluid dynamics (CFD) modeling is a promising route to accurately account for all the complexities associated with pressure piling to meet safety and standards requirement. We will discuss and demonstrate the use of CFD as a promising tool for modeling pressure piling in interconnected process vessels handling combustible powders.