Structural and functional model of «Bus park- gas filling complex» system

Abstract

The expansion of the use of natural gas as a motor fuel is a strategic state priority in solving the fuel, energy and environmental problems of the road transport complex. It is obvious that the growth of the fleet of gas-powered equipment is not possible without the improvement of the existing gas fuel supply system, which is characterized by a limited number of specialized filling stations, significant distances between them and lack of attachment to the consumer when they are placed. Improvement of the gas filling complex is a task, the condition of which is determined by many structural parameters and parameters of functioning, both of the gas filling complex itself and of key consumers. The bus fleet involved in regular passenger transport is considered a key consumer, due to its significant fuel consumption and territorial distribution. Thus, the identification of links between the parameters of the presented structures will allow to justify the measures to improve the system of gas-engine fuel supply to the bus fleet, which determines the purpose of the study: formation of a structural and functional model of the system «Bus park - gas filling complex». Methods of decomposition and synthesis of systems have been used to build the model of the system «Bus park - gas filling complex». Based on the decomposition, the subsystem elements were identified. The use of the synthesis method allowed to build intermediate connections between elements of different subsystems and to establish formalized dependencies between them. Thus, the structure and nature of the relationship between the elements of this system are defined, which is a scientific novelty of the work. The practical significance of the work lies in the possibility of further using the developed model to justify technical, technological and organizational measures for the development of the gas filling complex on the basis of structural and functional modeling of the system «Bus park - gas filling complex». A structural and functional model of the system «Bus park - gas filling complex» has been developed, which is used to solve theoretical and practical problems in the field of gasification of road transport. The developed model is the basis of structural and functional modeling - direction of further research aimed at justification of decisions on complex development of gas-engine fuel provision system, which is as adapted as possible to parameters of bus fleet functioning, provided that facilities of gas filling complex are accessible for other large groups of potential consumers.

Keywords

• gas-powered fuel
• bus park
• gas filling complex
• passenger transport
• filling stations
• system model
• decomposition
• synthesis