Bihoherentity of the dynamics of dangerous parameters of the gas environment during ignition of materials

Abstract

Listen

Translate article

The object of the study is the bicoherence of the dynamics of dangerous parameters of the gas environment during the ignition of materials in the premises. Part of the problem that was solved consists in identifying the features of the bicoherence of the dynamics of dangerous parameters of the gas environment in the absence and occurrence of fires in the premises. The results of the research indicate that the nature of the dynamics of the studied hazardous parameters of the gas environment in the absence and presence of material ignition is significantly different from the Gaussian distribution. It was found that bicoherence, in contrast to the traditional spectrum of the dynamics of dangerous parameters of the gas environment, has significantly greater informational features and can be used for early detection of fires. It was established that the information features of the bicoherence dynamics of the main hazardous parameters of the gas environment are the configuration, number and position of limited areas corresponding to full coherence or full opposite coherence, as well as the type of frequency triplets that are characteristic of such limited areas. In addition, a feature of the bicoherence of the dynamics of hazardous parameters of the gas environment is also the presence of large areas with characteristics close to the zero level of the proposed measure of bicoherence. The presence of such regions in the bicoherence diagrams indicates the loss of coherence for the corresponding set of triplets. According to the results of the experiment, it was established that this feature of bicoherence is characteristic for the dynamics of carbon monoxide during the ignition of alcohol and wood, as well as for the dynamics of temperature during the ignition of alcohol, paper, and textiles. In practice, the novelty and originality of the obtained research results is related to the possibility of using the bicoherence of the dynamics of dangerous gas environment parameters to detect fires in order to prevent fires in premises.