Determining the source data to form a control algorithm for hydrogen generators

Abramov, Yuriy; Basmanov, Oleksii; Kryvtsova, V.; Mikhailyuk, A.; Mikhayluk, Oleksandra

doi:10.15587/1729-4061.2019.181417

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Такі резервуари використовуються в газогенераторах систем зберігання та подачі водню. Слід зазначити, що всі ці методи та засоби контролю стану системи зберігання та подачі водню (або її основного елемента -газогенератора) об'єднує те, що їх обґрунтування передбачає визначення параметрів, які характеризують лише динамічні властивості системи [13,14]. Стосовно до обґрунтування показників надійності засобів контролю стану таких систем слід відмітити, що цей напрям досліджень потребує більш детальних досліджень.…”

Section: аналіз останніх досліджень і публікаційunclassified

Justification of the Characteristics of the Fire-Safe Condition Control System of the Storage System and Hydrogen Supply

Abramov

Kryvtsova

Mikhailyuk

2023

MEC

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A generalized mathematical model has been introduced to describe the level of fire safety of systems for saving and supplying water, as it is presented in terms of the theory of fire safety. Such a generalized mathematical model takes into account the probability of the appearance of a combustible medium and an ignition source. It is shown that for the appearance of a combustible medium in the hydrogen storage and supply system, it is necessary and sufficient the simultaneous appearance of a combustible substance and an oxidizer. When determining the probability of an ignition source, an exponential dependence is used, the time constant of which is proportional to the value of the minimum ignition energy of the combustible medium. For the purpose of assessing the level of fire safety of systems for saving and supplying water, the control system is victorious, the functioning of which is characterized by the ability to operate without a driver. This allows you to win against the fluctuations of the health of the systems of saving and supplying water in the fire-safe and fire-safe camps, as well as to gain the counter for the fluctuations of the deaths of the first and other births. The presence of these viruses allows to induce a virus, which reflects the reliability of the functioning of such a water system. It has been wised up for some time to improve the reliability of the functioning of the system for saving and supplying water. Taking this condition into account makes it possible to formulate requirements for the control system, in particular, for the probability of its failure-free operation or for the intensity of its failures. For illustration of these minds, there were some graphical fallows, which allow to again an express assessment of the indicators of reliability and control of water supply systems. It is shown that with total control of this efficiency, which does not seem to be ideal, with an integral indicator of 0,5 and equal to the fire safety of the system for saving and supplying water 0,01, the efficiency of the controllers robotic system is more than 0,995. It should be noted that for the same minds, the control of the system is responsible for saving water supply at equal her fire safety 10-3 for an hour interval 103 , the intensity of the waters of the control system is no more to blame Keywords: fire safety, control system, water supply saving system.

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Section: аналіз останніх досліджень і публікаційunclassified

Justification of the Characteristics of the Fire-Safe Condition Control System of the Storage System and Hydrogen Supply

Abramov

Kryvtsova

Mikhailyuk

2023

MEC

Self Cite

View full text Add to dashboard Cite

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Developing an algorithm for monitoring gas generators of hydrogen storage and supply systems

et al. 2022

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In relation to the main element of the hydrogen storage and supply system based on the hydro-reacting composition – the gas generator – an algorithm for its control has been developed. The development of such an algorithm is carried out in three stages. At the first stage, the problem of formalizing the hydrogen generation process is solved. Formalization of this process is carried out using the transfer function of the gas generator. The use of the criterion for the minimum error of the mismatch of the given amplitude-frequency characteristics of the gas generator allows to represent its transfer function in the form of a transfer function of the inertial link. At the second stage, the problem of determining the conditions for the occurrence of self-oscillations in the pressure stabilization subsystem is solved. A prerequisite for the emergence of a self-oscillating mode of operation of the hydrogen storage and supply system is the presence of a relay static characteristic of the pressure sensor. For the characteristic parameters of such a system, the ranges of values of the parameters of self-oscillations, frequencies and amplitudes, are determined. For these parameters, analytical expressions are obtained, which include the main parameters of the pressure stabilization subsystem in the hydrogen storage and supply system. At the third stage, the problem of forming a gas generator control algorithm is solved. As a test action in the implementation of the control algorithm, self-oscillations in the pressure stabilization subsystem are used. The control algorithm for the gas generator of the hydrogen storage and supply system includes determining the parameters of self-oscillations and comparing their values with the values obtained a priori. A typical diagram of a hydrogen storage and supply system is presented, in which the developed gas generator control algorithm is implemented

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Determining the source data to form a control algorithm for hydrogen generators

Cited by 2 publications

References 14 publications

Justification of the Characteristics of the Fire-Safe Condition Control System of the Storage System and Hydrogen Supply

Justification of the Characteristics of the Fire-Safe Condition Control System of the Storage System and Hydrogen Supply

Developing an algorithm for monitoring gas generators of hydrogen storage and supply systems

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