Simplified function of indoor gas explosion in residential buildings

Publication date: January 2017
Source:Fire Safety Journal, Volume 87
Author(s): T. Chyży, M. Mackiewicz
An original function describing the occurrence of indoor gas explosion in residential buildings has been presented in the paper. The function has been developed in order to simplify the description of explosion occurrence with its principal parameters, pressure and dynamics, being retained. It is a self-adaptative function, which means that its time function depends on the condition of construction elements, mainly decompressing areas called vents. The function consists of two parts. One is the phase of explosion pressure increase and the second is the decompression phase described by the fvent. modifier. The multiplication of the explosion pressure increase function and the fvent. modifier provides a final description of a pressure function for a vented explosion. The proposed function dependence enables an efficient dynamic analysis of three-dimensional models of building structures by means of the FEM.



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