Transcription of BRE FIRE CONFERENCE 2015
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BRE FIRE CONFERENCE 2015
Part of the BRE TrustBRE fire CONFERENCE 201511thJune 2015 Part of the BRE TrustWater mist systems as an alternative to sprinklersBRE fire CONFERENCE 201511thJune 2015Dr Louise JackmanSuppression Team, BRE Design, installation and maintenance fire performance verification Component extinguish a fire :fuel Remove heat Remove oxygen Remove fuel Inhibit flame chemistryWhy is water so efficient? water has one of the highest latent heat of vaporisation, 2256 kJ/kg and specific heat capacity, kJ/(kg K) Heat transfer for water to steam,1 litre of water 2600 kJ 1,600 x volume expansion liquid to steam 1,900 sprinkler drops (1mm), 1 litre of wateror 15 million watermistdroplets (50 m) 1mm drop( J heat absorbed per drop)50 m dropletsWhy is watermistso efficient?
Part of the BRE Trust Water mist systems as an alternative to sprinklers BRE Fire Conference 2015 11th June 2015 Dr Louise Jackman Suppression Team, BRE Global
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