Simulation of energy losses in an inflow turbine with partial blading of the runner
https://doi.org/10.21821/2309-5180-2023-15-5-858-866
Abstract
Studying the coefficients of kinetic energy losses of the nozzle diaphragm and the runner in an inflow turbine with partial blading of the runner is carried out. It is noted that inflow low-consumption turbines are reliable and productive devices designed to drive various units. Due to their compact size, they are especially in demand in various branches of mechanical engineering. However, in order to increase efficiency and reduce production costs, it is necessary to constantly improve the technology of manufacturing turbine stages. Some inflow turbines are partial, which leads to additional energy losses. Partial stages in which there are no losses from ventilation, namely, turbines with partial flapping of the runner are considered. To simulate such turbines, the ANSYS CFX software package is used in the work. By using ANSYS Design Modeler to create a geometric model and determine boundary conditions, as well as selecting the appropriate grid, the dependences of the loss coefficients in the nozzle and the runner are obtained. The study has shown that the degree of partiality and the Mach number of the turbine stage have a significant impact on the losses coefficients in the exact part of the nozzle and the runner. To account for these dependencies in the modeling process, empirical dependencies, which are an integral part of the design process of inflow turbines, are obtained. The use of the obtained empirical dependences makes it possible to more accurately predict the characteristics and performance of turbines of this type, as well as to supplement the existing mathematical model of the flow in the flow part of a low-consumption inflow turbine with partial blading of the runner.
About the Authors
A. A. Kryukov
Far Eastern State Technical Fisheries University
Russian Federation
Russian Federation
Kryukov, Aleksey A. - Senior lecturer
52B Lugovaya Str., Vladivostok, 690087
S. V. Kulichkov
Far Eastern Federal University
Russian Federation
Russian Federation
Kulichkov, Sergei V. - PhD, associate professor
10 Ajax Bay, Russky Island, Vladivostok, 690922
A. A. Ratnikov
Far Eastern Federal University
Russian Federation
Russian Federation
Ratnikov, Alexander A. - Head of the Laboratory of Computer Modeling
10 Ajax Bay, Russky Island, Vladivostok, 690922
References
1. Soloviev, Alexey Valerievich, Margarita Makarovna Chirkova, and Nikolay Frolovich Popov. “Improving the efficiency of ship power plants.” Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 4 (2018): 101–106. DOI: 10.24143/2073-1574-2018-4-101-106.
2. Erofeyev, Valentin L., Vladimir A. Zhukov, and Olesya V. Melnik. “On the possibilities of using secondary energy resources in marine engine.” Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova 9.3 (2017).
3. Abul, Kalam Azad. “Estimation of possibilities of heat recovery plants of the propulsion engines of large-capacity vessels of transport fleet.” Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 1 (2019): 121–125.
4. Matviienko, Valerii T., Volodymyr A. Ocheretianyi, and Andrey V. Dologlonyan. “Characteristics of operational processes of air independent single-circuit micro gas-turbine installations for underwater technology.” Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova 9.3 (2017): 612–618. DOI: 10.21821/2309-5180-2017-9-3-612-618.
5. Epifanov, A. A., A. I. Kirillov, and V. A. Rassohin. “Raschet trehmernogo techenija v stupenjah malorashodnyh turbin.” Nauchno-tekhnicheskie vedomosti Sankt-Peterburgskogo gosudarstvennogo politekhnicheskogo universiteta 1(142) (2012): 65–70.
6. Zabelin, N. A., G. L. Rakov, V. A. Rassokhin, A. A. Sebelev, and M. V. Smirnov. “Research of flow characteristics in low flow rate LPI turbine stages.” St. Petersburg State Polytechnical University Journal 1(166) (2013): 45–53.
7. Rassokhin, V., N. Zabelin, H. Kunte, J. Seume, S. Olennikov, M. Cherkasova, and A. Sebelev. “The design of microturbine units with low-consumed turbines constructed by LPI for heat recovery of exhaust gases of internal combustion engines.” Results of joint research activity of scientists from Saint-Petersburg State Polytechnical University and Leibniz University of Hannover. Polytechnical University Publishing House, 2014. 139–155.
8. Rakov, Gennadiy, Viktor Rassokhin, Nikolay Zabelin, Sergey Olennikov, Aleksandr Sebelev, Aleksandr Sukhanov, and Sergey Schislyaev. “A Low Emission Axial-Flow Turbine for the Utilization of Compressible Natural Gas Energy in the Gas Transport System of Russia.” International Journal of environmental & science education 11.18 (2016): 11721–11733.
9. Smirnov, M. V., A. A. Sebelev, N. A. Zabelin, and N. I. Kuklina. “Effects of hub endwall geometry and rotor leading edge shape on performance of supersonic axial impulse turbine. Part I.” Proceedings of 12th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. Stockholm, Sweden. 2017.
10. Kriukov, Aleksei Alekseevich, and Sergei Valentinovich Chekhranov. “Three-dimensional numerical simulation of low-consumption inflow turbine with partial blading of runner.” Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 1 (2021): 74–80. DOI: 10.24143/2073-1574-2021-1-74-80.
11. Kryukov, Aleksey A., and Sergei V. Chekhranov. “Comparison of the velocity coefficients values in the turbine stage with partial blading of the runner.” Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova 13.2 (2021): 257–265. DOI: 10.21821/2309-5180-2021-13-2-257-265.
12. Krykov, A.A., and S. V. Chekhranov. “Numerical experiment of flow in stages of inflow turbine with fractional blading of the rotor wheel.” Marine intellectual technologies 4–1(50) (2020): 114–120. DOI: 10.37220/ MIT.2020.50.4.016.
13. Chekhranov, S., and R. Simashov. “Mathematical model of a radial-flow low-consumption turbine having partially bladed wheel rotor.” Transport business of Russia 6 (2015): 222–226.
Review
For citations:
Kryukov A.A., Kulichkov S.V., Ratnikov A.A. Simulation of energy losses in an inflow turbine with partial blading of the runner. Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova. 2023;15(5):858-866. (In Russ.) https://doi.org/10.21821/2309-5180-2023-15-5-858-866
Views:
244
Email this article 