Calculation of the dimensions and dynamics of the formation of local explosion-hazardous zones in propagation and combustion of hydrogen within a building
Tóm tắt
On the basis of numerical calculations by a three-dimensional mathematical model, the author revealed some special features of heat and mass transfer within a building in the inflow of hydrogen at the floor level and subsequent detonation combustion of a local hydrogen-air mixture upon its ignition on the ceiling surface. By generalizing calculation results, the author obtained formulas for determining the height of a local explosion-hazardous zone which is formed above the source of hydrogen inflow. It is shown that in detonation combustion, local explosion- and fire-hazardous zones near the source of ignition can be destroyed and shifted to the lower and upper parts of the building toward the wall which is opposite to the opening.
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