INVESTIGATION OF THE INFLUENCE TWO-PHASE FLOWS PARAMETERS ON THE EROSION WEAR OF THE GAS PIPELINES BENDS

  • Ya. Doroshenko Ivano-Frankivsk National Technical University of Oil and Gas
Keywords: bend, dispersed particle diameter, dispersed particle rate, dispersed phase, erosion wear, Finney equation, gas flow rate, Lagrange approach

Abstract

CFD modeling (Computational Fluid Dynamics) Lagrangian approach (model DPM (Discrete Phase Model)) in ANSYS Fluent R19.2 Academic software complex investigates the influence of twophase gas flow velocity, size and flow rate of dispersed particles on the location and magnitude of gas pipeline bends erosion wear. The motion of the continuous phase was modeled by the solution of the Navier-Stokes equation and the continuity of the closed two-parameter k-ε turbulence model with the corresponding initial and boundary conditions. The motion trajectories of the dispersed particles were determined by integrating the force equations acting on each particle. The erosion wear of gas pipeline bends was modeled using the Finney equation.

The studies were performed for gas flow velocities at the inlet of the bend from 4 m/s to 19 m/s, the diameters of the dispersed particles 0.005 mm, 0.01 mm, 0.05 mm, 0.1 mm, 0.5 mm and 1.0 mm and the flow rate of the dispersed particles from 0.0002 kg/s to 0.0022 kg/s. Natural gas was selected as the continuous phase, and sand was dispersed. The geometry of each of the simulated taps and the pressure at the outlet of the bend were assumed to be the same.

The simulation results were visualized in the postprocessor software complex by constructing erosion rate velocity fields on gas pipeline bends. From the visualized results it is determined that the largest influence on the location of the erosion wear of the pipeline bends has the diameter of the dispersed particles and the least concentration. The influence of the two-phase gas flow parameters on the location of the field of their maximum erosion wear is determined. The graphical dependences of the maximum velocity of erosion wear of gas pipeline bends on each of the studied parameters of the two-phase gas stream are constructed. It has been determined that the diameter of the dispersed particles and the velocity of the gas stream have the greatest influence on the erosion wear of the erosion of the bends.

Author Biography

Ya. Doroshenko, Ivano-Frankivsk National Technical University of Oil and Gas

Ph.D., Associate Professor

References

Doroshenko, Ya., Doroshenko, Ju., Zapukhliak, V., Poberezhny, L., Maruschak, P. (2019) Modeling computational fluid dynamics of multiphase flows in elbow and T-junction of the main gas pipeline. Transport, 34, 1, 19–29.

Doroshenko, Ya. V., Мarko, Т. І., Doroshenko, Yu. І. (2017) The study of erosive wear of the shaped elements of compressor station manifold of a gas pipeline. Journal of Hydrocarbon Power Engineering, 3, 2, 65–78.

Singh, V., Kumar, S., Mohapatra, S. (2019) Modeling of erosion wear of sand water slurry flow through pipe bend using CFD. Journal of Applied Fluid Mechanics, 12, 3, 679–687.

Zhang, J., Kang, J., Jianchun, J., Gao, J. (2016) Study on erosion wear of fracturing pipeline under the action of multiphase flow in oil & gas industry. Journal of Natural Gas Science and Engineering, 32, 334–346.

Zhang, H., Tan, Y., Yang, D, Trias, F, Jiang, S., Sheng, Y., Oliva, A. (2012) Numerical investigation of the location of maximum erosive wear damage in elbow: Effect of slurry velocity, bend orientation and angle of elbow. Powder Technology, 217, 467–476.

Mekhail, T., Aissa, W., Hassanein, S., Hamdy, O. (2011) CFD simulation of dilute gas-solid flow in 90° square bend. Energy and Power Engineering, 3, 246–252.

Ansari, M., Mohammadi, S., Oskouei, M. (2012) Two-phase gas/liquid-solid flow modelling in 90° bends and its effect on erosion. Global Journal of researches in engineering Mechanical and mechanics engineering, 12, 1, 35–44.

Lin, N., Lan, H., Xu, Y., Cui, Y., Barber, G. (2015) Coupled effects between solid particles and gas velocities on erosion of elbows in natural gas pipelines. Procedia Engineering, 102, 893–903.

Ryabov, A., Kudryavtsev, A., Voronkov, O., Haritonov, A., Maltsev, A., Melnikov, I., Kiselev, M., Straw, M. (2014) Numerical analysis of erosion of gas-pipeline elements. STAR: materials of Global conference, Vienna, 17-19 March 2017 year. Vienna, 17.

Dosanjh, S., Humphrey, J. (1985) The influence of turbulence on erosion by a particle laden fluid jet. Wear, 102, 4, 309–330.

Hinze, J. O. (1975) Turbulence. New York: McGraw-Hill, 790.

Finnie, I., Kabil, Y. (1965) On the formation of surface ripples during erosion. Wear, 8, 60–69.

TU U 27.2-05747991-001-2004. Detali zednuvalni i zbirni odynytsi mahistralnykh i promyslovykh truboprovodiv na Pp do 10 MPa (100 khs/sm 2 (2004)). Chynnyi vid 2005-06-01. Vyd. ofits. m. Sumy : VAT “SMNO im. Frunze”, 98.

Doroshenko, Ya. V., Marko, T. I., Doroshenko, Yu. I. (2016) Doslidzhennia dynamiky rukhu hazu fasonnymy elementamy obv’iazky kompresornoi stantsii. Naukovyi visnyk, 1 (40), 57–71.

Doroshenko, Ya. V., Marko, T. I., Doroshenko, Yu. I. (2016) Doslidzhennia dynamiky rukhu bahatofaznykh potokiv fasonnymy elementamy obviazky kompresornoi stantsii mahistralnoho hazoprovodu. Mizhnarodnyi naukovyi zhurnal, 7, 68–77.

Smart, J. (2007) Movement of Black powder in gas pipeline. Pipeline and Gas Journal. October 2007, 82–85.

Smart, J., Winters, R. (1971) Transport of solids at low concentration in horizontal pipelines in Advances in SolidLiquid Flow in Pipelines and its Applications. Pergammon Press, 101–124.

Published
2020-04-03
How to Cite
DoroshenkoY. (2020). INVESTIGATION OF THE INFLUENCE TWO-PHASE FLOWS PARAMETERS ON THE EROSION WEAR OF THE GAS PIPELINES BENDS. Municipal Economy of Cities, 1(154), 240-247. Retrieved from https://khg.kname.edu.ua/index.php/khg/article/view/5560