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
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.
