PSI - Issue 59

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 59 (2024) 750–756

© 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers © 20 24 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers Abstract The modern city gas network is an integral part of the gas transportation system and serves to directly supply the consumer with energy. At the current stage of the wide implementation of the system of individual energy supply to consumers, there is a reduction and partial elimination of group points providing consumers with thermal energy during the heating period, which leads to the redistribution of gas flows in the city network, as a result of which there are congested sections of the network, on which due to excess consumption gas there is an excessive drop in pressure. © 20 24 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Energy efficiency and reliability of gas transport and distribution networks Ya. Grudz, I. Prokopiv, K. Novikov, N. Drin*, A.Vitushynskyi, L. Kachan Ivano-Frankivsk National University of Oil and Gas, 15, str. Karpatska, Ivano-Frankivsk, 76019, Ukraine Abstract The modern city gas network is an integral part of the gas transportation system and serves to directly supply the consumer with energy. At the current stage of the wide implementation of the system of individual energy supply to consumers, there is a reduction and partial elimination of group points providing consumers with thermal energy during the heating period, which leads to the redistribution of gas flows in the city network, as a result of which there are congested sections of the network, on which due to excess consumption gas there is an excessive drop in pressure. VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Energy efficiency and reliability of gas transport and distribution networks Ya. Grudz, I. Prokopiv, K. Novikov, N. Drin*, A.Vitushynskyi, L. Kachan Ivano-Frankivsk National University of Oil and Gas, 15, str. Karpatska, Ivano-Frankivsk, 76019, Ukraine 1. Introduction Initially, the efficiency coefficient was introduced to evaluate the energy efficiency of heat engines; however, later, the concept of the efficiency coefficient was transferred to all technical systems whose activity is related to the transformation of energy and performance of work. Such systems, in addition to engines, include all types of gears, kinematic pairs with the presence of friction, torque transmission systems, and others. 1. Introduction Initially, the efficiency coefficient was introduced to evaluate the energy efficiency of heat engines; however, later, the concept of the efficiency coefficient was transferred to all technical systems whose activity is related to the transformation of energy and performance of work. Such systems, in addition to engines, include all types of gears, kinematic pairs with the presence of friction, torque transmission systems, and others. Keywords: coefficient of hydraulic efficiency, the useful work, efficiency factor of the gas network. Keywords: coefficient of hydraulic efficiency, the useful work, efficiency factor of the gas network.

* Corresponding author. Tel.: +38 (0342) 72-71-39. E-mail address: natalia.drin@nung.edu.ua * Corresponding author. Tel.: +38 (0342) 72-71-39. E-mail address: natalia.drin@nung.edu.ua

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers 2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers 10.1016/j.prostr.2024.04.107