Browsing by Author "Obshta, Anatoliy"

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    Cyber-Physical System for Diagnostics Along the Controlled Section of the Oil Pipeline
    (Видавництво Львівської політехніки, 2023-02-28) Obshta, Anatoliy; Biliak, Yurii; Shugai, Vladyslav; Lviv Polytechnic National University
    The purpose of the work is to develop an experimental model of the control system for compliance with turns along the control length of the pipeline. The open issue of detecting oil product leaks along the controlled section of the pipeline. Preliminary analysis of leak detection methods and principles of operation of hardware and software security diagnostics of the state of pipe transport networks has been considered. A method of studying experimental data and presenting results has been developed. Different literature sources have been analyzed, these literature sources provide information about real cases of pipeline system diagnostics and leak or defect detection. The software and hardware part of the control systems for conducting checks along the control part of the pipeline have been developed, and checks and evaluations of the results of the system checks have been carried out.
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    Development of Mathematical Model and Identification of Optimal Conditions to Obtain Phenol-Cresol-Formaldehyde Resin
    (Видавництво Львівської політехніки, 2019-02-28) Pyshyev, Serhiy; Demchuk, Yuriy; Gunka, Volodymyr; Sidun, Iurii; Shved, Mariia; Bilushchak, Halyna; Obshta, Anatoliy; Lviv Polytecnic National University
    Досліджено вплив чинників на перебіг про- цесу одержання феноло-крезоло-формальдегідної смоли (PhCRF). З використанням практичних даних розроблено адекватну експериментально-статистичну математичну (ЕСМ) модель. На її основі встановлено оптимальні значення чинників процесу одержання PhCR-F, які забезпечують високі вихід і температуру розм’якшення смоли. Порівняно прогнозовані на основі ЕСМ та практичні дані процесу одержання PhCR-F.