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Topic: BLEVE

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Liquified petroleum gas

	BLEVE
		The time between initiation of flame contact and a BLEVE varies because it depends upon such widely varying factors as the size and nature of the fire as well as the container itself and any damage dome to the tank.
		In the case of the Albert City incident, the BLEVE occurred approximately 18 minutes from the time the fire department was notified, and within eight minutes of the time the apparatus had arrived.
		The potential for a BLEVE should be considered any time there is direct flame impingement on a LP-Gas vessel at the vapor space of the vessel, when venting through relief valves is not adequate to relieve the pressure build-up.
	ncsp.tamu.edu /reports/NFPA/vapor_explosion.htm (2845 words)

	BLEVE - Wikipedia, the free encyclopedia
		BLEVE, pronounced blevy, is an acronym for "boiling liquid expanding vapour explosion".
		A BLEVE can occur in a vessel that stores a substance that is usually a gas at atmospheric pressure but is a liquid when pressurized (for example, liquefied petroleum gas).
		A BLEVE does not require a flammable substance to occur, and therefore is not usually considered a type of chemical explosion.
	en.wikipedia.org /wiki/BLEVE (399 words)

	Bleve effect (Site not responding. Last check: 2007-10-18)
		The BLEVE, or boiling liquid expanding vapor explosion, is the worst possible outcome when a tank holding a pressure liquefied gas, such as propane or LPG, fails due to fire contact or impact.
		The term BLEVE first appeared as flammable BLEVE.— It was described in reports that followed a propane incident on a railcar in Kingman, Arizona (1973), in which 13 firemen died and hundreds of spectators who were standing more than 1,000 feet away suffered serious radiation burns.
		A BLEVE is a type of pressure-release explosion that occurs when liquefied gases, which are stored in containers at temperatures above their boiling points, are exposed to the atmosphere, causing rapid vaporization.
	www.specgasreport.com /archive/bleve501.htm (1531 words)

	Safety Index - NFPA BLEVE ALERT BULLETIN (Site not responding. Last check: 2007-10-18)
		The time between initiation of flame contact and a BLEVE varies because it depends upon such widely varying factors as the size and nature of the fire as well as the container itself and any damage dome to the tank.
		In the case of the Albert City incident, the BLEVE occurred approximately 18 minutes from the time the fire department was notified, and within eight minutes of the time the apparatus had arrived.
		The potential for a BLEVE should be considered any time there is direct flame impingement on a LP-Gas vessel at the vapor space of the vessel, when venting through relief valves is not adequate to relieve the pressure build-up.
	www.saftek.com /worksafe/bleve.html (2875 words)

	NTP 293: Explosiones BLEVE (I): evaluación de la radiación térmica
		Una BLEVE es un tipo de explosión mecánica cuyo nombre procede de sus iniciales en inglés Boiling Liquid Expanding Vapor Explosion cuya traducción sería "Expansión explosiva del vapor de un líquido en ebullición".
		La BLEVE es un caso especial de estallido catastrófico de un recipiente a presión en el que ocurre un escape súbito a la atmósfera de una gran masa de líquido o gas licuado a presión sobrecalentados.
		Tal descenso de presión puede ser debido a causas tales como: desprendimiento del disco de ruptura, pérdida de resistencia del recipiente en un incendio con la consiguiente rotura del mismo, perforación del recipiente por impacto, rotura por sobrellenado e incluso disparo de válvulas de seguridad mal diseñadas.
	www.mtas.es /Insht/ntp/ntp_293.htm (2692 words)

	Bleve kills two NFPA Journal - Find Articles
		The three fatal BLEVEs on farms over the past five years point to the need, once again, to train firefighters in the safe handling of LP-Gas fires and to enforce NFPA code requirements addressing the safe storage and handling of LP-Gas that have proven effective over the past two decades.
		The heat from the fire causes the metal to weaken and fail as the internal pressure increases, and liquid-to-vapor expansion provides the energy that creates cracks in the container, causing the container to fail, and propels pieces of the container outward.
		When the tank BLEVEd, the sound of it woke people county-wide, and the force of it threw a deputy sheriff standing 200 feet (61 meters) away 15 or 20 feet (5 to 6 meters).
	www.findarticles.com /p/articles/mi_qa3737/is_199811/ai_n8818000 (904 words)

	THE RISK OF TRANSPORTATION OF DANGEROUS GOODS: BLEVE IN A TUNNEL (Site not responding. Last check: 2007-10-18)
		This paper presents the case history of a BLEVE of a tank truck transporting LPG that occurred in a highway tunnel near Palermo (Italy).
		As a consequence of the tank failure, the tank is flattened to the ground, giving rise to a strong blast wave, a destructive fire-ball, and in some cases the formation of numerous fragments that can be propelled significant distances.
		Several examples of BLEVEs are reported in the literature but they always refer to open environment scenarios, while descriptions of accidents occurring in congested areas are unavailable.
	www.medbc.com /annals/review/vol_10/num_4/text/vol10n4p241.htm (2263 words)

	BLEVE
		(Boiling Liquid Expanding Vapor Explosion) - a BLEVE occurs when a vessel containing liquid under pressure, such as a liquid propane tank, is subjected to a temperature above the liquid's boiling point.
		If not, the BLEVE will still occur, but the vapors will not ignite (a steam boiler is a common example of this).
		BLEVEs can also be caused by mechanical damage or overfilling.
	www.interfire.org /termoftheweek.asp?term=1072 (125 words)

	The BLEVE Effect.
		This is what happens in a BLEVE of a high pressure vessel filled with water -- such a BLEVE is just a very fast episode of the process described in the above paragraph.
		This rapid expansion is the explosion referred to in ``BLEVE'' and it represents a violent conversion of internal energy into kinetic energy.
		A video of several BLEVE tests conducted by NASA is available that readily shows the violence of such an event.
	runt.ocean.washington.edu /swift/PTV-manual/node9.html (452 words)

	BLEVE Incident Simulator (BIS), BLEVE Incident Modelling for Hazard Analysis, Response Planning and Training (Site not responding. Last check: 2007-10-18)
		BLEVE -- boiling liquid expanding vapour explosion -- a BLEVE is the explosive release of expanding vapour and boiling liquid following the catastrophic failure of a pressure vessel holding a pressure liquefied gas such as propane or LPG.
		A BLEVE is the worst possible outcome when a propane or LPG tank is exposed to fire.
		The BLEVE or boiling liquid expanding vapor explosion, is the worst possible outcome when a tank holding a pressure liquefied gas, such as propane or LPG, fails due to fire contact or impact.
	business.inkingston.com /thermdyne (369 words)

	[No title]
		The purpose of the modeling was to estimate the offsite consequences of releases of flammable materials from units that are proposed for installation or modification as the result of the CARB Phase 3 - MTBE Phase Out Project.
		The incremental risk was compared with a zero baseline since butane is not a liquid at ambient temperatures.5BLEVEPentane and ButaneA fire in the vicinity of a new spheroid pentane tank causes the tank to fail catastrophically, resulting in 10% percent of the contents exploding as a vapor cloud.
		Flow is assumed to occur for 2 minutes at 1,680 gpm and 10% of the released mass is assumed to be consumed in the BLEVE.
	www.aqmd.gov /CEQA/documents/2001/nonaqmd/mobil/final/appC.doc (1570 words)

	BLEVE A.M.Birk PhD. P.Eng. BLEVE Research - Mechanical Engineering at Queen's University
		Some tests were specifically designed to study the boiling liquid expanding vapour explosion or BLEVE as it is commonly known.
		In all cases the tanks and surroundings were heavily instrumented to measure tank and lading temperature distributions, tank internal pressure, high speed transient presssures during failure, and far field thermal radiation and blast overpressure.
		This work was funded as a result of a propane tank BLEVE that claimed the lives of some firefighters in Quebec.
	me.queensu.ca /people/birk/research/thermalHazards/bleve (876 words)

	SafetyXChange - Forum - BLEVE
		We are going back about thirty or 40 (or 50 yuck) years for the original BLEVE but I'm cetain that they can help you out with...
		I am a firefighter instructor and am familier with the video you are seeking.
		I have heard about the BLEVE but I need some detail information regarding the phenomenon...Please send...
	www.safetyxchange.org /forum/view_post.php?pos_id=1020 (220 words)

	BLEVE (George Herbert) (Site not responding. Last check: 2007-10-18)
		>[...] I thought BLEVE was Burning Liquid Expanding Vapor Explosion, not Boiling.
		I don't regularly read the firefighter magazines, but I recall seeing some discussion of it in the late 80s early 90s timeframe after a few incidents.
		Superheated water isn't technically a BLEVE, it's just superheated liquid flash vaporizing, which is unpleasant but not nearly as bad as say, superheated propane flash vaporizing while burning and resulting in a near-instantaneous combustion of the whole load.
	yarchive.net /explosives/bleve.html (225 words)

	Stopping gas tanks exploding
		He plans a dramatic test of the device at the World land speed record attempt at Lake Gairdner in SA in March 2005.
		When LPG (liquefied petroleum gas, or propane) tanks are engulfed in a fire, they explode in a devastating manner, called a BLEVE - boiling liquid expanding vapour explosion.
		The explosion occurs because the top of the tank becomes very hot and weakened then the high pressue fuel inside causes the tank to rupture and explode.
	www.scienceinpublic.com /freshinnovators/2004/colinyoung/colinyoung.htm (798 words)

	BLEVE Incident Simulator for Windows 95 and Windows NT
		This software is intended as a BLEVE incident training tool, scenario analyzer and response planner.
		If you are lucky, you may never be called to a BLEVE incident.
		To get the most out of the BLEVE Incident Simulator it is recommended that personnel attend an introductory seminar on the use and interpretation of the simulator results.
	www.thermdyne.com /brochure.htm (823 words)

	Propane Tank Fire and Bobtail BLEVE Explosion Investigation, accident reconstruction
		During the course of the resulting fire a bobtail parked about 14 feet from the 18,000-gallon tank exploded (BLEVED).
		In the aerial photo above, the white 18,000 gallon tank is just northeast of center and the pizza parlor across the street is to the northeast of the tank.
		Fox is an explosion expert, fire expert, and chemical expert with extensive experience in OSHA, EPA and DOT chemical regulations and chemical safety.
	www.chemaxx.com /explosion18.htm (395 words)

	Boiling liquid expanding vapour explosion (BLEVE) study (Site not responding. Last check: 2007-10-18)
		This project was part of a long-term program designed to increase the knowledge of BLEVE phenomena and to carry out basic and applied research on the general BLEVE problem.
		Field tests of medium-scale propane tanks were carried out at the Defence Research Establishment Valcartier (DREV) in the summers of 1992, 1993, and 1994.
		Blast overpressures from BLEVEs are generally low and the hazards are small compared with those from the fireball and projectiles
	www.tc.gc.ca /tdc/projects/dgoods/c/8032.htm (327 words)

	BLEVE Incident Simulator for Windows (Site not responding. Last check: 2007-10-18)
		When you are at the site of a gas leak, or a potential LPG release you need to look around for places where gases can collect and be confined.
		In fact, the projectile hazard is the furthest reaching immediate hazard from a BLEVE.
		Now that you have seen the hazard summary -- now it is time to simulate the tank in a given fire situation.
	www.thermdyne.com /BISdemo.htm (1457 words)

	Calculating PSV for External Fire : BLEVE ? (Site not responding. Last check: 2007-10-18)
		I'm a student working for a gas storage plant, and one of the questions arising here is "the firefighting department advised that the PSV on the methanol vessel is too small against BLEVE".
		My first tought by myself was, that once you have a BLEVE on the methanol vessel, your PSV will not help anymore...
		What they probably mean is that the PSV should be calculated to protect the methanol vessel against overpressure by external fire, so that the vessel will not fail and result in a BLEVE ?
	www.cheresources.com Forums - !http: //www.cheresources.com/forums/forum5/messages/10172.shtml (170 words)

	Photos - Boiling Liquid Expanding Vapor Explosion (BLEVE), Emergency Response Program, US EPA
		Photos - Boiling Liquid Expanding Vapor Explosion (BLEVE)
		Transportation accidents involving hazardous substances may pose significant threats from explosions as well as contamination.
		Boiling liquid expanding vapor explosions (BLEVE), such as the one pictured here, are common to trains and other transporters of hazardous substances that incur a sudden impact or damage.
	www.epa.gov /superfund/programs/er/resource/d1_22.htm (95 words)

	iB::Topic::DEGUSTANDO A CASA BLEVE ROMA
		Topic: DEGUSTANDO A CASA BLEVE ROMA, incontri di degustazione maggio giugno06
		Ciao, oggi ho ricevuto la mail da parte di Casa Bleve a Roma dove vengono presentati i nuovi appuntamenti per maggio e giugno vi posto la mail.
		Casa Bleve ospita per una piacevole degustazione Vangelis Paraschos, viticoltore Friulano, con i suoi vini prodotti con metodo tradizionale e senza solforosa!
	www.gamberorosso.it /cgi-bin/ib3/ikonboard.cgi?s=f4f7fa61d2370c7bc59d16ffad852b91;act=NW;f=29;t=57370 (292 words)

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