Unconfined Vapor Cloud Explosions UVCE

Frank T. Bodurtha/ Sc D / E. I. du Pont de Nemours and Co., Inc., (retired) Consultant, Frank T. Bodui tha, Inc. (Gas Explosions Unconfined Vapor Cloud Explosions [UVCE.s] and Boiling Liquid Expanding Vapor Explosions [BLEVE.s])... [Pg.2263]

Unconfined Vapor Cloud Explosions (UVCEs) and Boiling Liquid Evaporating Vapor Explosions (BLEXT s)... [Pg.2266]

UNCONFINED VAPOR CLOUD EXPLOSIONS (UVCEs) AND BOILING LIQUID EXPANDING VAPOR EXPLOSIONS (BLEVEs)... [Pg.2319]

Davenport has listed more tlian 60 major leaks of flammable materials, most, of which resulted in serious fires or unconfined vapor cloud explosions (UVCEs)." Table 16.3.1 classifies tlie leaks by point of origin and shows that if transport containers are excluded, pipe failures accounted for more than lialf tlie accidents. The biggest cause of tliese failures lias been shown to be poor construction due to use of wrong specifications or failure to follow specifications established. [Pg.469]

Especially, for gaseous mixtures exploding in the open the term unconfined vapor cloud explosion (UVCE) is used, whereas when it explodes in confined spaces the term confined vapor cloud explosion (CVCE) is used. In a very poor or very rich fuel mixture, but still within flammability limits, the flame front travels in the cloud at low velocity and insignificant pressure increase—a phenomenon known as flash fire. [Pg.546]

Fire is more likely tlian an explosion where tliere is a loss of contaimneiit of a flammable material from a railroad car, barge, ship lank, or from a pipeline. However, both unconfined vapor cloud explosions (UVCES) and boiling liquid-expanding vapor e.xplosions (BEEVES) can occur as a result of transport accidents, (sec Section 7.5)... [Pg.185]

On June 1, 1974, a fire and massive explosion occurred at the Nypro (UK) Ltd. works near Flixborough, North Lincolnshire (Fig. 42.1). An accidental release of cyclohexane at 0.96 MPa and between 150 to 155°C resulted in an unconfined vapor cloud explosion (UVCE) that caused 28 fatalities, the destruction of the plant, severe injury to inhabitants, and sig-... [Pg.910]

Flash and evaporadon Dispersion Neutral or posidvely buoyant gas Dense gas Fires Pool fires Jet fires BLEVES Flash fires Explosions Confined eiqilosions Unconfined vapor cloud explosions (UVCE) Physical explosions (PV) Dust explosions Deionadons Condensed phase detonadons Missiles Consequences Effect analysis Toxic effects Thermal effects Overpressure effects Damage assessments Community Workforce Environment Company assets... [Pg.10]

Unconfined Vapor Cloud Explosion (UVCE) A term often found in the literature referring to a vapor cloud explosion. It is now generally accepted that some degree of confinement is necessary for a vapor cloud explosion. [Pg.316]

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