Planning optimal operating modes of underground gas storage facilities as part of the gas transmission system

Authors

DOI:

https://doi.org/10.15587/1729-4061.2022.258953

Keywords:

underground gas storage facility, mathematical support, optimal planning, optimization methods

Abstract

The object of this study is underground gas storage facilities (UGSF) as part of the gas transmission system (GTS), in the process of joint operation of which a significant synergistic effect is achieved. The problem under consideration is to ensure the joint effective operation of the integrated UGSF and GTS complex as a single thermal-hydraulic one.

A method of daily calculation of the maximum productivity of underground gas storage facilities has been devised. The optimization potential of UGSF operating modes has been studied. It is shown to range within 11‒20 %. The problems of planning the operation of UGSF have been stated and solved both under gas pumping modes and gas withdrawal modes. An algorithm for planning gas withdrawal modes at intervals of peak-free UGSF operation been developed. The achieved computational complexity of problem-solving algorithms is in the range of 2‒10 seconds. The problem of combining simultaneous operation of UGSF under an optimal mode for fuel gas and ensuring the necessary peak operation of UGSF at projected time intervals has also been considered. The joint UGSF performance was calculated at the projected time intervals according to the established criteria. At the same time, thermal-hydraulic coordination of UGSF operating modes with the operation of the GTS main gas pipeline system with which they are integrated was ensured.

The problem was solved as a result of the implementation of a universal approach to the construction of functional models of complex systems – a single information support, the representation of the structure of the system in terms of graphs, the statement of proper mathematical problems, the development of methods for guaranteed convergence of systems with different mathematical representations of equations, the development of computational algorithms for combinatorial optimization of minimum complexity processes with discrete and irregular influences on  their behavior

Author Biographies

Myroslav Prytula, Institute of Gas Transport of PJSC «Ukrtransgaz»

PhD, Lead Engineer

Department of Disigning Systems of Optimal Scheduling and Forecasting Operating Modes of GTS

Nazar Prytula, Research and Design Institute of Gas Transport of PJSC «Ukrtransgaz»

Doctor of Technical Sciences, Head of Department

Department of Disigning Systems of Optimal Scheduling and Forecasting Operating Modes of GTS

Yaroslav Pyanylo, Pidstryhach Institute for Applied Problems of Mechanics and Mathematics National Academy of Sciences of Ukraine

Doctor of Technical Sciences, Researcher

Department of Mathematical Modeling of Transfer Processes in Complex Systems

Zoia Prytula, Pidstryhach Institute for Applied Problems of Mechanics and Mathematics National Academy of Sciences of Ukraine

PhD, Researcher

Department of Mathematical Modeling of Transfer Processes in Complex Systems

Olga Khymko, Lviv Polytechnic National University

Doctor of Technical Sciences, Associate Professor

Department of Automation and Computer-Integrated Technologies

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Published

2022-06-30

How to Cite

Prytula, M., Prytula, N., Pyanylo, Y., Prytula, Z., & Khymko, O. (2022). Planning optimal operating modes of underground gas storage facilities as part of the gas transmission system . Eastern-European Journal of Enterprise Technologies, 3(2 (117), 76–91. https://doi.org/10.15587/1729-4061.2022.258953