Determining the functioning efficiency of a fire safety subsystem when operating the hydrogen storage and supply system

Authors

DOI:

https://doi.org/10.15587/1729-4061.2024.300647

Keywords:

hydrogen systems, evaluation efficiency, fire safety, Kolmogorov equation, graph theory

Abstract

The object of research is the fire safety subsystem of hydrogen storage and supply systems. The subject of the study is the efficiency index of the fire safety subsystem of hydrogen storage and supply systems for different modes of its operation. As such an efficiency indicator, the conditional probability that the fire safety subsystem correctly recognizes the actual state of the hydrogen storage and supply system is used. The fire safety subsystem functions under the control mode and under the test mode. Mathematical models of the operation of the fire safety subsystem were built for such modes, based on the use of graph theory. The weight matrices of these graphs include the completeness of control or testing and the intensity of transition of the fire safety subsystem from one state to another. Determination of the effectiveness of such a subsystem – reliability of functioning – is carried out using Kolmogorov’s equations. It is shown that during the testing of hydrogen storage and supply system, the probability of its being in a fire-safe state has a maximum. It is shown that with values of completeness of control (testing) that do not differ from 1.0, the effectiveness of the functioning of the fire safety subsystem is invariant with respect to the mode of its functioning. With values of completeness of control (testing), which are significantly different from 1.0, the functioning of the fire safety subsystem under the testing mode is more effective.

The identified features of the functioning of the fire safety subsystem make it possible in practice to implement an optimal or adaptive algorithm for the functioning of such subsystems. For example, with the appropriate selection of testing parameters, the fire safety subsystem provides determination of the location of the hydrogen storage and supply system with maximum probability

Author Biographies

Yuriy Abramov, National University of Civil Defence of Ukraine

Doctor of Technical Sciences, Professor, Chief Researcher

Research Center

Oleksii Basmanov, National University of Civil Defence of Ukraine

Doctor of Technical Sciences, Professor, Chief Researcher

The Scientific Department on the Problems of Civil Defense, Technogenic And Ecological Safety of Research Center of National University

Valentina Krivtsova, National University of Civil Defence of Ukraine

Doctor of Technical Sciences, Professor

Department of Physical and Mathematical Sciences

Andriy Mikhayluk, National University of Civil Defence of Ukraine

PhD, Senior Researcher

Department of Doctoral Studies, Adjuncture

Yevhen Makarov, National University of Civil Defence of Ukraine

PhD, Senior Lecturer

Department of Pyrotechnic and Special Training

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Determining the functioning efficiency of a fire safety subsystem when operating the hydrogen storage and supply system

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Published

2024-04-30

How to Cite

Abramov, Y., Basmanov, O., Krivtsova, V., Mikhayluk, A., & Makarov, Y. (2024). Determining the functioning efficiency of a fire safety subsystem when operating the hydrogen storage and supply system. Eastern-European Journal of Enterprise Technologies, 2(2 (128), 75–84. https://doi.org/10.15587/1729-4061.2024.300647