DOI 10.35776/VST.2021.04.08
UDC 628.144:532.542

Orlov V. А., Zotkin S. P.

Study of changes in the coefficient of hydraulic friction of materials of pressure pipes at different temperatures

Summary

Reducing the cost of electricity for the mechanical transportation of water through pressure pipelines by reducing the hydraulic resistance of the inner walls of the pipes is of current importance. This circumstance predetermines the need for appropriate hydraulic testing of alternative materials that can be used in the design and construction of pipeline systems. The aim of the study is to identify the nature of the change in the value of hydraulic friction depending on the temperature conditions of the transported water and the environment in certain ranges, with the subsequent possible control of the transportation process with a minimum of energy costs. The set goals are achieved by experimental computational and analytical approaches to determining the dynamics of changes in the hydraulic parameters of pipelines made of various materials. A comprehensive analysis of the experimental and calculated data obtained using patented automated systems for determining the coefficients of hydraulic friction for a polyethylene pipe and a pipe made of unplasticized polyvinylchloride, and the dynamics of changes in these coefficients depending on the temperature of the transported water and the temperature conditions of pipeline laying is presented.

Key words

pressure pipeline , hydraulic resistance , electrical energy consumption , temperature conditions , computerized calculations

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REFERENCES

1. Orlov V. A. Bestransheinye tekhnologii i energosberezhenie [Trenchless technologies and energy conservation. Moscow, ASV Publ., 2021, 123 p.].
2. Nigmatulin R. I., Molov’ev A. A. Osnovy gidromekhaniki [Fundamentals of fluid mechanics. Moscow, Litera Publ., 2012, 400 p.].
3. Orlov V. A., Averkeev I. A., Koblova E. V. [Hydraulic component of alternative pipe materials and protective coatings in trenchless renovation of pressure pipelines]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2013, no. 6, pp. 22–26. (In Russian).
4. Aleksandrov V. I., Gvozdev O. B., Karelin A. E., Morozov A. A. [Estimation of the effect of the roughness of the inner surface of hydrotransportation pipelines on the value of specific pressure losses]. Gornoe Oborudovanie i Elektromekhanika, 2017, no. 3 (130), pp. 34–40. (In Russian).
5. Grossmann S., Lohse D. Curvature effects on the velocity profile in turbulent pipe flow. European Physical Journal E, 2017, no. 40, pp. 16–19.
6. Il’iasov D. Zh., Aginei R. V. [Experimental evaluation of the effect of fluid flow vortices on the hydraulic resistance of the pipeline]. Nauka i Tekhnika v Gazovoi Promyshlennosti, 2020, no. 1 (81), pp. 40–47. (In Russian).
7. Al’tshul’ A. D. Gidravlicheskie soprotivleniia [Hydraulic resistances. Moscow, Nedra Publ., 1982, 224 p.].
8. Samarin O. D. [Construction of a cross-functional dependence for pressure losses in pipelines]. Santekhnika, Otoplenie i Konditsionirovanie, 2016, no. 1 (169), pp. 24–25. (In Russian).
9. Sukharev M. G., Karasevich A. M., Samoilov R. V., Tverskoi I. V. [Study of the hydraulic resistance of polyethylene pipelines]. Inzhenerno-Fizicheskii Zhurnal, 2005, v. 78, no. 2, pp. 136–144. (In Russian).
10. Chesnokov Iu. G. [New formulas for calculating the flow characteristics of liquid or gas in a pipe with a circular cross-section]. Inzhenerno-Fizicheskii Zhurnal, 2017, v. 90, no. 4, pp. 1005–1011. (In Russian).
11. McKeon B. J., Zagarola M. V., Smits A. J. A new friction factor relationship for fully developed pipe flow. Journal Fluid Mechanics, 2005, v. 538, pp. 429–443.
12. Avci A., Karagoz I. A novel explicit equation for friction factor in smooth and rough pipes. ASME Journal Fluids Engineering, 2009, v. 131, no. 6, 061203.
13. Ghanbari A., Farshad F. F., Reice H. H. Newly developed friction factor correlation for pipe flow and flow assurance. Journal Chemical Engineering and Materials Science, 2011, v. 2, pр. 83–86.
14. Fang X., Xu Y., Zhou Z. New correlations of single-phase friction factor for turbulent pipe flow and evaluation of existing single-phase friction factor correlations. Nuclear Engineering and Design, 2011, v. 241, pp. 897–902.
15. Al’tshul’ A. D., Kalitsun V. I., Mairanovskii F. G., Pal’gunov P. P. Primery raschetov po gidravlike. [Examples of hydraulic calculations. Moscow, Al’ians Publ., 2013, 255 p.].
16. Yehia A. El Drainy, Khalid M. Saqr, Hossam S. Aly, Mohammad Nazri Mohd. Jaafar. CFD analysis of incompressible turbulent swirling flow through zanker plate. Engineering Applications of Computational Fluid Mechanics, 2009, v. 3, no. 4, pр. 562–572.
17. Sairiddinov S. Sh. Gidravlika system vodosnabzheniia i vodootvdeniia [Hydraulics of water supply and wastewater disposal systems. Moscow, ASV Publ., 2012, 352 p.].