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Список видань за алфавітом назв: Авторський покажчик Покажчик назв публікацій  |
Пошуковий запит: (<.>A=Grudz V$<.>) | |||
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Загальна кількість знайдених документів : 9 Представлено документи з 1 до 9 |
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| 1. | 
Grudz V. Ya. The research of gas leak from the pipeline [Електронний ресурс] / V. Ya. Grudz, Ya. V. Grudz, N. Ya. Drin, R. B. Stasiuk // Journal of hydrocarbon power engineering. - 2014. - Vol. 1, Iss. 2. - С. 103-107. - Режим доступу: http://nbuv.gov.ua/UJRN/jhpe_2014_1_2_6 | ||
| 2. | 
Grudz V. Formation of soil pollution area by oil when there is break of airtightness of main pipeline [Електронний ресурс] / V. Grudz, A. Zhdek, V. Bolonnuy // Metallurgical and mining industry. - 2016. - № 7. - С. 56-62. - Режим доступу: http://nbuv.gov.ua/UJRN/metmi_2016_7_13 | ||
| 3. | 
Filipchuk O. Development of cleaning methods complex of industrial gas pipelines based on the analysis of their hydraulic efficiency [Електронний ресурс] / O. Filipchuk, V. Grudz, V. Marushchenko, V. Myndiuk, M. Savchuk // Восточно-Европейский журнал передовых технологий. - 2018. - № 2(8). - С. 62-71. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2018_2(8)__9 Експериментально досліджено режими роботи основного газозбірного колектора системи збору та транспортування газу з установок комплексної підготовки газу. Доведено, що рідинна фаза накопичуються в трубопроводі за рахунок зміни термобаричних умов рівноваги фаз під час транспортування газу після попередньої підготовки газу. Запропоновано комплекс заходів із видалення рідини з порожнини газопроводу без зупинки роботи газопроводу. | ||
| 4. | 
Grudz V. Effectiveness study on the system for gas gathering, treatment and transportations from gas production company [Електронний ресурс] / V. Grudz, V. Marushchenko, M. Bratakh, M. Savchuk, O. Filipchuk // Technology audit and production reserves. - 2018. - № 3(1). - С. 43-52. - Режим доступу: http://nbuv.gov.ua/UJRN/Tatrv_2018_3(1)__7 | ||
| 5. |
Grudz V. Ya. Non-stationary processes in oil-product pipeline using anti-turbulence additives [Електронний ресурс] / V. Ya. Grudz, R. S. Al-Dandal // Journal of hydrocarbon power engineering. - 2015. - Vol. 2, Iss. 1. - С. 19-23. - Режим доступу: http://nbuv.gov.ua/UJRN/jhpe_2015_2_1_5 | ||
| 6. |
Grudz V. Ya. Non-stationary processes in the gas transmission systems at compressor stations shut-down [Електронний ресурс] / V. Ya. Grudz, V. Ya. (junior) Grudz, V. B. Zapukhlyak, Ya. V. Kyzymyshyn // Journal of hydrocarbon power engineering. - 2018. - Vol. 5, Iss. 1. - С. 22-27. - Режим доступу: http://nbuv.gov.ua/UJRN/jhpe_2018_5_1_5 | ||
| 7. | 
Bolonnyi V. T. Prediction of transient processes in oil pipelines with the purpose of emergency incident prevention [Електронний ресурс] / V. T. Bolonnyi, V. Ya. Grudz, Ya. V. Grudz, V. B. Zapukhliak, T. Ya. Dodyk // Науковий вісник Національного гірничого університету. - 2020. - № 1. - С. 118-122. - Режим доступу: http://nbuv.gov.ua/UJRN/Nvngu_2020_1_22 Purpose. Preventing accidents during the operation of complex oil transportation systems under incomplete loading is considered on the basis of the prediction of the nature of transient pressure pulsations caused by a leap-like change in productivity. Methodology. The main factors affecting the trouble-free operation of the main oil pipelines are analyzed. The classification of pipe wall defects of the main oil pipelines is given. For each of these types of defects the probable indicators of their occurrence are given based on the experience of operation of domestic main oil pipelines. Findings. In order to carry out analytical studies and to establish the laws of fluctuation of pressure in the main oil pipeline with road withdrawal, a mathematical model based on the equations of motion and mass conservation of the fluid is built, the withdrawal process is described using the Dirac source function. The implementation of the model was carried out using the principles of operational calculus, which allowed us to obtain an analytical form of the nature description of the time-varying pressure oscillations in the characteristic points of the trace, which makes it possible to establish the amplitude-frequency characteristics of the transient process. Originality. For the first time, it is proposed to use a piecewise linear approximation of the boundary conditions at the point of origin of leakage for their implementation in the analytical solution of the transient process model in a hypothetical main oil pipeline. Practical value. According to the obtained method, the distribution of relative values of pressure and mass flowrate at characteristic points of the modelled oil pipeline system is constructed. The influence of time-varying errors in determining the pressure in the point of road withdrawal upon the accuracy of the calculations is evaluated. The results obtained are recommended for use in oil pipelines and complex petroleum-based systems operating under incomplete loading (to prevent emergencies). | ||
| 8. | 
Grudz V. Dynamic analysis of well equipment to produce oil [Електронний ресурс] / V. Grudz, Y. Grudz, V. Bevz, M. Chernetsky // Mining of mineral deposits. - 2020. - Vol. 14, Iss. 4. - С. 82-89. - Режим доступу: http://nbuv.gov.ua/UJRN/rr_2020_14_4_12 | ||
| 9. |
Grudz V. Forecasting rational working modes of long-operated gas-transport systems under conditions of their incomplete loading [Електронний ресурс] / V. Grudz, Y. Grudz, M. Iakymiv, M. Iakymiv, P. Iagoda // Eastern-european journal of enterprise technologies. - 2021. - № 4(8). - С. 6-15. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2021_4(8)__3 Prolonged operation of the gas-transport system in conditions of partial loading involves frequent changes in the volume of gas transportation, which necessitates prompt forecasting of system operation. When forecasting the modes of operation of the gas transport system, the main criterion of optimality implies the maximum volume of gas pumping. After all, in this case, the largest profit of the gas-transport company is achieved under the condition of full provision of consumers with energy. In conditions of incomplete loading of the gas-transport system caused by a shortage of gas supply, optimality criteria change significantly. First, the equipment is operated in ranges far from nominal ones which leads to growth of energy consumption. Secondly, changes in performance cause high-amplitude pressure fluctuations at the outlet of compressor stations. Based on mathematical modeling of nonstationary processes, amplitude and frequency of pressure fluctuations at the outlet of compressor stations which can cause the pipeline overload have been established. To prevent this, it was proposed to reduce initial pressure relative to the maximum one. Calculated dependence was obtained which connects the amplitude of pressure fluctuations with the characteristics of the gas pipeline and the nonstationary process. Reduction in energy consumption for transportation is due to the shutdown of individual compressor stations (CS). Mathematical modeling has made it possible to establish regularities of reduction of productivity of the gas-transport system and duration of the nonstationary process depending on the location of the compressor station on the route. With an increase in the number of shutdown compression stations, the degree of productivity decrease and duration of nonstationarity reduces. The established patterns and proposed solutions will improve the reliability of a gas-transport system by preventing pipeline overload and reduce the cost of gas transportation by selecting running numbers of shutdown stations with a known decrease in productivity. | ||
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