Automation of the design of the impeller of a radial-axial hydraulic turbine
- Authors: Zharkovskiy A.A.1, Shchur V.A.1, Omran M.1, Staseyev A.A.1
-
Affiliations:
- Peter the Great St. Petersburg Polytechnic University
- Issue: Vol 15, No 4 (2021)
- Pages: 18-26
- Section: Original Study Articles
- URL: https://journals.rcsi.science/2074-0530/article/view/105594
- DOI: https://doi.org/10.31992/2074-0530-2021-50-4-18-26
- ID: 105594
Cite item
Full Text
Abstract
The article describes approaches to the design of a vane system of radial-axial hydraulic turbines based on an automated design system developed at SPbPU using the Python programming language. The specified system currently includes the following modules: selection of the main parameters of the hydraulic turbine, construction of the meridional projection of the impeller, calculation of the potential flow and construction of the blade system of the radial-axial hydraulic turbine. The choice of the main parameters of the hydraulic turbine is based on the technique generally accepted in hydraulic turbine engineering, which has been digitized and introduced into the software package. The paper considers and analyzes different approaches to the design of the meridional bypasses of the flow path in the area of the impeller of a radial-axial hydraulic turbine, a comparison of the results of their construction using different methods is given. A technique that is most suitable for algorithmization in the software package based on the results of the analysis was selected. The construction of streamlines and the calculation of velocities along them are presented on the basis of the calculation of the potential flow in the meridian section. The design of the blade system of the hydraulic turbine was carried out by the method of solving the direct axisymmetric problem of the theory of hydraulic machines. As an example, a blade system of a radial-axial hydraulic turbine was designed for a head up to 75 meters, the initial parameters of which correspond to hydraulic turbines-analogues of similar speed. The designed hydro turbine was calculated in Ansys, and the results confirmed its excellent energy properties. It is planned to further develop the software package in terms of automatic construction of 3-dimensional solid models of the flow path, which can later be calculated by the methods of computational fluid dynamics and optimized to obtain hydraulic turbines with parameters corresponding to the current state of the art.
Full Text
##article.viewOnOriginalSite##About the authors
A. A. Zharkovskiy
Peter the Great St. Petersburg Polytechnic University
Email: tshur_va@spbstu.tu
DSc in Engineering
Russian Federation, Saint PetersburgV. A. Shchur
Peter the Great St. Petersburg Polytechnic University
Author for correspondence.
Email: tshur_va@spbstu.tu
PhD in Engineering
Russian Federation, Saint PetersburgM. Omran
Peter the Great St. Petersburg Polytechnic University
Email: tshur_va@spbstu.tu
Russian Federation, Saint Petersburg
A. A. Staseyev
Peter the Great St. Petersburg Polytechnic University
Email: tshur_va@spbstu.tu
Russian Federation, Saint Petersburg
References
- Lomakin A.A. Tsentrobezhn·yye i osev·yye nasosy [Centrifugal and axial pumps]. Leningrad: Mashi-nostroyeniye Publ., 1966. 364 p.
- Barlit V.V. Gidravlicheskiye turbiny [Hydraulic turbines]. Kiyev, «Vishcha shkolA» Publ., 1977, 360 p.
- Gryanko L.P. Postroyeniye potentsial'nogo meridiannogo potoka i gidrodinamicheskiy raschet beskonechno-tonkoy lopasti radial'no-osevoy gidroturbiny po metodu Bauersfel'da-Voznesenskogo [Construction of a potential meridian flow and hydrodynamic calculation of an infinitely thin blade of a radial-axial hydraulic turbine using the Bauersfeld-Voznesensky method]. Leningrad: Izd-vo LPI im. M.I. Kalinina Publ., 1985. 32 p.
- Topazh G.I. Lopastn·yye gidromashiny i gidrodinamicheskiye peredachi. Osnovy rabochego protsessa i rascheta gidroturbin [Blade hydraulic machines and hydrodynamic transmissions. Hydro turbine workflow and design fundamentals]. SPb.: Izd-vo Politekhn un-ta Publ., 2011. 154 p.
- Klimovich V.I. Calculation of flows in the flow path of pump-turbines based on the solution of the direct axisymmetric problem of the theory of hydraulic machines. Izvestiya AN SSSR. MZHG. 1988. No 4 (in Russ.).
- Fedorov A.V., Strumentova N.S., Shumilin S.A. Computer-aided design of vane systems for pump-turbine impellers for heads of 90-150 m. Trudy TSKTI. 1988. Vyp. 244, pp. 28−35 (in Russ.).
- CFTurbo
- Pospelov A.YU. Metodika rognozirovaniya energeticheskikh kharakteristik gidroturbin na osnove rascheta trekhmernogo vyazkogo techeniya neszhimayemoy zhidkosti. Avtoref. na soisk. uch. step k.t.n. [A method for predicting the energy characteristics of hydraulic turbines based on the calculation of a three-dimensional viscous flow of an incompressible fluid: Abstract for Dissertation for Degree of PhD in Engineering], SPb, SPBGPU Publ., 2013, 16 p.
- Chernyy S.G., Chirkov D.V., Lapshin V.N. i dr. Chislennoye modelirovaniye techeniy v turbomashinakh [Numerical simulation of flows in turbomachines]. Novosibirsk : Nauka Publ., 2006. 202 p.
- ANSYS CFX User's Guide, release 14.5. ANSYS, Inc., February 12, 2013
- Mironov K.A., Yakovleva L.K., Gulakhmadov A.A. Improvement of flow paths of radial-axial hydraulic tur-bines. Vіsnik NTU «KHPІ». Serіya: Yenergetichnі ta teplotekhnіchnі protsesi ta ustatkuvannya. KH.: NTU «KHPІ», 2013 (in Russ.).
- Fedorov A.V., Vitenzon M.S. The method of optimization of the lattices of the profiles of hydraulic ma-chines for the Flowing part CAD subsystem. Trudy TSKTI, 1987, vyp. 232, pp. 18–22 (in Russ.).
- Golikov V.A., Zharkovskiy A.A., Topazh G.I. Software systems for calculating the flow and computer-aided design of vane hydraulic machines. Nauchno-tekhnicheskiye vedomosti SPBGPU. Seriya «Nauka i obra-zovaniYE», 2012, No 1(142), pp. 199−206 (in Russ.).
- Anton I. – Turbine hidraulice, Ed. Facla, Timişoara, 1979
- Eyup Kocaka, Salih Karaaslana, Nuri Yucela , Furkan Arundasa , A numerical case study: Bovet approach to de-sign a Francis turbine runner , 8th International Conference on Sustainability in Energy and Buildings, Turin, ITALY, 11−13 September 2016.
- Smirnov I.N. Gidravlicheskiye turbiny i nasosy [Hydraulic turbines and pumps]. Moscow: Vysshaya shkola Publ., 1969. 400 p.
- Kovalev N.N. Gidroturbiny [Hydraulic turbines]. Leningrad: Mashinostroyeniye Publ., 1971. 584 p.
- Busyrev A.I., Topazh G.I. Lopastn·yye gidromashiny. Vybor osnovnykh parametrov i elementov pro-tochnoy chasti gidroturbin: uchebnoye posobiye [Blade hydraulic machines. The choice of the main pa-rameters and elements of the flow path of hydraulic turbines: a tutorial]. SPb, Izd-vo Politekhnicheskogo un-ta, 2007, 123 p.
- Morozov A.A., Anosov F.V., Gamus I.M. i dr. Turbinnoye oborudovaniye gidroelektrostantsiy [Turbine equipment for hydroelectric power plants]. Moscow: Gos·energoizdat Publ., 1958, 519 s.
- Krivchenko G.I. Gidravlicheskiye mashiny: Turbiny i nasosy [Hydraulic machines: Turbines and pumps]. Moscow: Energiya Publ., 1978. 320 p.
- OST 108.23.15-82. Turbines are hydraulic vertical rotary vane and radial-axial. Types, main parameters and dimensions.
- IEC 60193. Hydraulic turbines, storage pumps and pump-turbines. Model acceptance tests.
- Obretenov V. R"kovodstvo za kursovo proyektirane na khidravlichni turbomashini [Guide for course work on design of hydraulic turbomachines], 1993, Sofiya .
- Bovet N., Contribution to the study of Francis-Turbines Runner-Design, Trans. of the ASME, Special issue, 1960.
- Borshchev I.O., Zharkovskiy A.A., Shkarbul' S.N. Calculation of potential flows by the finite element meth-od. Trudy konferentsii «Hydro-Turbo-89», ch.1, 1989, CHSSR