This paper presents four different approaches for determining the consequences of hybrid mixture explosions. Experimental work has been completed using a Siwek 20-L chamber for polyethylene alone, and for the ethylene/polyethylene, hexane/polyethylene, and propane/ polyethylene hybrid mixture systems. Empirical relationships for the hybrid mixtures were developed by modeling the explosion phenomena as being dependent on the burning velocity of the admixed gas. Fundamental thermo-kinetic modeling of the polyethylene and various hydrocarbon/polyethylene systems has resulted in excellent agreement with the experimental results in terms of the size-normalized maximum rate of pressure rise. CFD modeling of the mixtures investigated experimentally has been conducted with the GexCon code DESC (Dust Explosion Simulation Code); the preliminary results are promising in terms of consequence prediciton.
Determination of Hybrid Mixture Explosion Severity
RUSSO, Paola
2010-01-01
Abstract
This paper presents four different approaches for determining the consequences of hybrid mixture explosions. Experimental work has been completed using a Siwek 20-L chamber for polyethylene alone, and for the ethylene/polyethylene, hexane/polyethylene, and propane/ polyethylene hybrid mixture systems. Empirical relationships for the hybrid mixtures were developed by modeling the explosion phenomena as being dependent on the burning velocity of the admixed gas. Fundamental thermo-kinetic modeling of the polyethylene and various hydrocarbon/polyethylene systems has resulted in excellent agreement with the experimental results in terms of the size-normalized maximum rate of pressure rise. CFD modeling of the mixtures investigated experimentally has been conducted with the GexCon code DESC (Dust Explosion Simulation Code); the preliminary results are promising in terms of consequence prediciton.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
