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Review of vapour cloud explosion incidents
Major incidents worldwide have involved large vapour cloud explosions, including the Buncefield explosion in 2005. It is important to learn from historical incidents to understand the risk profile of installations. Following the Buncefield explosion, a large body of published research has improved scientific understanding of the release event, the flammable cloud formation and the explosion. This report describes work done by HSE with US safety regulators to consolidate previous research and to incorporate recently published analysis into a single, systematic review of historical incidents. Important...
Spontaneous ignition of gas turbine lubricants at temperatures below their standard auto-ignition temperatures
In order to determine how process conditions can influence minimum auto-ignition temperatures in gas turbine enclosures, and other industrial installations, a novel type of calorimeter has been developed at HSE's Buxton research laboratory. This instrument, a Spontaneous Combustion Calorimeter (SCC), has been used to investigate the ignition properties of pure substances, such as n-heptane and compare the results with minimum ignition temperatures determined using standard methods. This was followed by a more detailed investigation of the ignition of gas-turbine lubricants. Source: http://www...
Risk assessment for VCE scenario in an aerosol warehouse
In 2006, Dr Graham Atkinson of HSL was asked by HSE to review the risks from fires in large aerosol stores (Atkinson, 2007). Atkinson reviewed incident statistics and reports and concluded that the greatest risk to people from such fires was from explosions, not from the fire itself. He postulated a vapour cloud explosion (VCE) mechanism, whereby a fire of material elsewhere in the warehouse from the aerosols could give rise to a hot air layer close to the ceiling. Aerosols stored close to the ceiling could then fail and release their flammable contents, but not be immediately ignited by the fire...
Plastic containers for flammable liquids/hazardous areas
This report contains an assessment of the electrostatic risks associated with a selection of commonly available plastic containers ranging in size from 50 ml bottles to 1000 l Intermediate Bulk Containers, and manufactured from a variety of materials. Source :
Comparing subsurface migration of LPG with natural gas
A programme of experiments assessed differences in behaviour between leaks of natural gas and Liquefied Petroleum Gas (LPG) from buried pipes, to inform opinion on whether an existing (Advantica) model of the risks from buried natural gas pipework could be useful in assessing the risks associated with buried metallic LPG pipes. Source:
Base de données CarAtex
L'évaluation du risque d'inflammabilité et d'explosivité liée aux produits ou aux process est un élément essentiel dans la démarche de maîtrise globale des risques. Pour effectuer celle-ci, les industriels ont besoin de connaître les caractéristiques physico-chimiques permettant d'évaluer l'inflammabilité et l'explosivité des produits qu'ils utilisent, transforment, stockent, etc... CarAtex (caractéristiques ATEX) donne des informations sur l'inflammabilité et l'explosivité...

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