- 21. Evaluation of hydraulic power of drilling string with a cavitation hydrovibrator
- (Content №3 2021)
- ... of efficiency of converting stationary fluid flow into pulsating flow. Findings. The results are presented in the form of calculated and experimental dependences of pressure, volumetric flow rate, vibration ...
- Created on 23 June 2021
- 22. Increasing the efficiency of water shut-off in oil wells using sodium silicate
- (Content №1 2021)
- ... cut in production wells to 010%, against existing values of 7090%, and an increase in flow rate in producing wells by 2030%. Key words: oil well, water, water-blocking zone, sodium silicate (liquid glass), ...
- Created on 05 March 2021
- 23. Enhancing efficiency of air distribution by swirled-compact air jets in the mine using the heat utilizators
- (Contens №5 2020)
- ... Domnita, F., Bacotiu, C., & Podolak, M. (2018). The influence of occupants’ body mass on carbon dioxide mass flow rate inside a university classroom – case study. International Journal of Environmental ...
- Created on 30 October 2020
- 24. Recirculation power in the balance of hydraulic losses of centrifugal pump
- (Contens №5 2020)
- ... using the ANSYS CFX software. Findings. The dynamics of changes in the integral parameters of the operational process of a centrifugal pump D2000-100-2 at flow rates that deviate from optimal (Qopt) ...
- Created on 30 October 2020
- 25. Experimental research on hydraulic resistance of deformed woven meshes
- (Contens №5 2020)
- ... calculations and experimental results. Findings. The values of hydraulic pressure losses are experimentally determined depending on the flow rate for various types of meshes with different values ...
- Created on 30 October 2020
- 26. The parameters of burden flow from the bins of bell-less top charging system of blast furnaces
- (Contens №3 2020)
- ... volumetric burden flow rate is tested and compared with the results of the full-scale modeling. Findings. The volumetric flow rate of the burden is determined both experimentally and theoretically ...
- Created on 02 July 2020
- 27. Prediction of transient processes in oil pipelines with the purpose of emergency incident prevention
- (Content №1 2020)
- ... stations in conditions of periodic communication sessions. Oil Industry Journal, (3), 54-57. 7. Grudz, V. Y., Zhdek, A., & Bolonnyi, V. T. (2016). Estimation of flow rate of oil loss as a result ...
- Created on 10 March 2020
- 28. Calculation of the volume of air for ventilation of mining workings when operating self-propelled diesel equipment
- (Contens №6 2019)
- ... the neutralizer, the gas-cleaning coefficient was derived and applied in the method for calculating the amount of air. Studies performed in the area of calculating the specific air flow rate by the exhaust ...
- Created on 23 December 2019
- 29. Creation of object-oriented model of centrifugal pump on the basis of electro-hydrodynamic analogy method
- (Contens №6 2019)
- ... as well as the simultaneous balance of effort (delivery head and pressure), and flow (flow rates) variables, namely the balance of powers. Methodology. Applying of the electrohydrodynamic analogy ...
- Created on 23 December 2019
- 30. Approximate analytical model of rock thermal cyclical disintegration under convective cooling
- (Geotechnical and Mining Mechanical Engineering, Machine Building)
- ... rock disintegration during drilling. The studies carried out confirmed the possibility of control of the temperature mode on the working face and thermal softening of the rock by changing the flow rate ...
- Created on 19 August 2019
- 31. Experimental studies on polypropylene filter resistance according to DSTU EN 143-2002
- (Environmental Safety, Labour Protection)
- Authors: Yu. I. Cheberiachko, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0001-7307-1553, National Mining University, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. N. A. Ikonnikova, Cand. ...
- Created on 16 May 2018
- 32. PILOT TESTING TECHNOLOGY TO CLEAN GAS PIPELINES IN KHIDNOVYTSKE GAS FIELD
- (Mining)
- ... of the domestic chemical agents, was proposed. The total gas flow rate increased by 1.1 thousand m3/day after the usage of the suggested technology. Originality. A technology for cleaning the ...
- Created on 11 March 2018
- 33. Research on kinematics of contact interaction of cycloidal profiles in gerotor gearing
- (Geotechnical and mining mechanical engineering, machine building)
- ... K., 2014. Profile design and numerical calculation of instantaneous flow rate of a gerotor pump. Journal of Applied Mathematics and Physics, 3, pp. 92‒97. 4. Skibinskyi, O. I., Hutsul, V. I., Hnatiuk, ...
- Created on 11 January 2018
- 34. Evaluation of flotation ability of a sulfhydryl collector mixture in the processing of copper-bearing ores
- (Solid-state physics, mineral processing)
- ... in particular air flow rate of 40 l/h-1, frequency of impeller rotation of 35 Hz, consumption of lime of 3000 g/t-1, consumption of a collector mixture of 100 g/t-1 are determined. Originality. ...
- Created on 11 January 2018
- 35. Mathematical model of reliability and efficiency of pumping unit of an oil pumping station
- (Geotechnical and mining mechanical engineering, machine building)
- ... as polynomials and values of their coefficients were calculated. It was clarified that the extreme values of efficiency and reliability are achieved for different flow rate values. That requires the use ...
- Created on 17 November 2017
- 36. Study of the stress state of the downhole jet pump housing
- (Geotechnical and mining mechanical engineering, machine building)
- ... hydrodynamic parameters of flow which are suitable for extreme conditions of ejection system operation in a well. The obtained value of cavitation flow rate determines the waste of pressure in hydraulic ...
- Created on 17 November 2017
- 37. Enhanced gas recovery from depleted gas fields with residual natural gas displacement by nitrogen
- (Mining)
- ... flow rate of production well of gas and nitrogen, and gas recovery factor depending on the pressure of early nitrogen injection into the gas field and duration of injection period. Originality. For ...
- Created on 17 November 2017
- 38. Environmental assessment of the intermetallic catalysts utilization efficiency for deactivation of the pollutants emitted by electrode production enterprises
- (Environmental safety, labour protection)
- ... was tested in the stream of exhaust gases produced by kilns and graphitization furnaces in a laboratory at temperatures from 100 to 500 °C and the volumetric gas flow rate W from 30 · 103 to 120 · 103 ...
- Created on 04 August 2016
- 39. Determination of insulating properties of half-masks of respirators in terms of pressure difference
- (Environmental safety, labour protection)
- ... testing against particulate and biological aerosols under moderate to high flow rates. Rapport d'etude du Chemical Biological Center d'Edgewood ECBC-CR- 085. 10. Roberge, R.J., Monaghan, W.D., Palmiero, ...
- Created on 23 June 2016
- 40. Calculation of the balanced mode of the electric drive of a sucker rod oil pump for a marginal well
- (Electrical complexes and systems)
- ... equations describing electric drive system dynamics. Findings. The developed mathematical model for calculating the operational mode coordinates of the sucker rod pump as a function of the flow rate ...
- Created on 23 September 2014