Prolonged operation of the gas-transport system in conditions partial loading involves frequent changes volume gas transportation, which necessitates prompt forecasting operation. When modes transport system, main criterion optimality implies maximum pumping. After all, this case, largest profit company is achieved under condition full provision consumers with energy. In incomplete caused by a ...

............................................................................................................................. iii Acknowledgements ............................................................................................................ vi Chapter 1 ...........................................................................................................................

The water pumped by reclamation stations of the Republic Uzbekistan contains many mechanical impurities. This negatively affects operation pumping units. There is a decrease in operating parameters unit and associated increase electricity consumption. Analysis alluvial regime main sources large shows that sediment concentration can reach values 15-20 kg/m 3 and, on average, up to 8-10 (i.e., ex...

Based on the study and analysis of technologies technical means for transporting oil gas through main pipelines, energy material-saving methods their construction are scientifically substantiated. A method designing trunk pipelines with variable wall thickness is proposed, which possible under conditions current interstate standard GOST 31447-2012. The technique based use mathematical statistic...

Abstract The high costs generated by water supply systems’ pumping stations has great concerns regarding concessionaire companies in the sector. Improvements to increase these efficiency and consequently reduce electricity have been objective of several researchers technicians responsible for Given many elements that compose systems, finding best operational rules is frequently a complex activi...

A digital, four-channel thermistor flowmeter integrated with time-lapse cameras was developed as an experimental tool for measuring pumping rates in marine sponges, particularly those with small excurrent openings (oscula). Combining flowmeters with time-lapse imagery yielded valuable insights into the contractile behaviour of oscula in Cliona orientalis. Osculum cross-sectional area (OSA) was ...

Most of the operating oil fields are in late stages development, which special attention is paid to production energy efficiency. In accordance with trend toward digitalization technical processes, intelligent control stations for wells currently being developed, one main tasks maintain equipment operation an optimal mode. This work aims develop a methodology selecting energy-efficient well mod...

This study examines the effect of pumping, hydrogeology, and pesticide characteristics on pesticide concentrations in production wells using a reactive transport model in two conceptual hydrogeologic systems; a layered aquifer with and without a stream present. The pumping rate can significantly affect the pesticide breakthrough time and maximum concentration at the well. The effect of the pump...

According to the results of studies steady operation modes electric pumping units Ukrainian oil stations, have been identified main reasons efficiency decrease their performance during operation. It is determined that normative documents regulating efficient pipelines Ukraine need be improved. The assessment energy potential unit on example pump НМ-3600-230 with synchronous drive СТД-2500-2 car...