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Combustion of inhomogeneous mixture in closed vessel and pressure build up

The pressure will build up if a fire occurs in a closed vessel. This is due to the fact that the hot gases expand and no venting can take place. The combustion will be incomplete, leading to an increased production of CO as the available oxygen is consume, until the oxygen has become depleted after which combustion will cease. Simple combustion models are not well equipped to deal with inhomo-geneous mixtures, while models utilising detailed or reduced chemical kinetics are more appropriate.

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Page last modified on December 10, 2008, at 03:18 PM