Influence of hot smoke layer on ignition of discrete objects in indoor fires
Abstract：When indoor fire happened,it is often occurred that a local fire first appears in a place,then the combustibles spaced certain distance with the occurred fire will be ignited and begin to burn.As an example,the smoke temperature was measured when the wood keeping a certain distance away from the ignition source caught fire in different environments,and the influence of the hot smoke layer on the discrete objects ignition was studied through small scale fire experiments.The results show that the smoke temperature reaching the self-ignition point of the discrete objects is a qua non of their ignition,and the hot smoke layer plays an important role as an ignition source when the discrete objects catch fire.So,the measures such as stopping the smoke layer temperature reaching the self-ignition point of the discrete objects or avoiding the combustible volatiles of the discrete objects contacting with the hot smoke layer can be adopted to prevent the discrete objects ignition in enclosure fires,and therefore to prevent the spreads of the fires.
Keywords：indoor fireshot smoke layerdiscrete objects
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 396-400 )