Experimental study of the fluctuations of gas medium parameters as early signs of fire

System Analysis of Prevention of Man-Made Emergency Situations in Consequence of Fire in the Premises of the Object

“…However, it does not contain data on the structure of the interaction of hazardous parameters of the state of the gaseous medium during ignition of materials in the premises. The work [26] is devoted to the study of increments of certain hazardous parameters of the state of the gaseous medium for the detection of early fires in rooms. However, the results in it are limited to the analysis of traditional statistical indicators for increments of the state parameters of the gaseous medium.…”

“…Moreover, the study of the structural features of the dynamics of the state parameters of the gaseous medium in a multidimensional phase space is not considered. In [21][22][23][24][25][26], it is noted that fires are not only a source of fire hazard, but also a source of violation of the parameters of the initial equilibrium state of the gaseous medium in the premises of the facility. In the general case, the state of the gaseous medium during fires in rooms is characterized by a more complex nonlinear dynamics of the main parameters.…”

Development of the method for rapid detection of hazardous atmospheric pollution of cities with the help of recurrence measures

“…The processes of non-stationary pollution of gas medium, taking into consideration noises are discussed in paper [8]. Experimental studies were performed for the local ecosystem in the form of gas medium in non-pressurized premises, in which ignition of combustible material was performed.…”

Analysis of detection of ecological hazard based on computing the measures of current recurrence of ecosystem states

“…In this case, early detection of hazardous states is usually accompanied by non-stationary monitoring intervals. Paper [24] focuses on the exploration of increments of states as the signs of early detection of hazardous states in local ecosystems. However, the cited results are limited to analysis of the statistics of increments of basic states of gas medium in an ecosystem at ignition.…”

“…The features of the structure of dynamics of increments of states in multi-dimensional phase space are not considered. Following [20][21][22][23][24], the studies of hazardous states in local ecosystems at model ignitions prove that an early ignition is a source of violation of the original equilibrium state of gas medium that in the general case has a rather complicated non-linear character.…”