THEORETICAL AND EXPERIMENTAL INVESTIGATIONS TO DEFINE OPTIMAL PARAMETERS OF THE STRAIGHT-FLOW TURBINE FOR NON-DAM HYDRO POWER STATION

In the article, there are theoretical and experimental investigationspresented with regards to determination of optimal parameters of thestraight-flow turbine for non-dam hydro power stations. The goal forconducting theoretical and experimental investigations is to increase electricpower of the hydro turbine. The most optimal angle of attack of the flowdirection at the inlet has been calculated. Accordingly, the results ofvelocity, pressure, lift and drag forces as well as lift and drag coefficientsalong the blade have been received. Also, hydro turbine’s work with nonrotating and rotating shaft modes have been taken into account. Theachieved results executed in 2D and 3D simulation software modes allowedvisualization of the hydro turbine performance through depicting arrows,streamlines, contours, surfaces and line graphs. The calculations withregards to incompressible liquids were measured with the help of COMSOLMultiphysics and ANSYS Fluent software packages through application ofDirect Numerical Simulation (DNS) and K-epsilon methods on the base ofNavier-Stokes equations. Changing water discharge through a ball valve,the amount of the rotation of the hydraulic turbine rotor was determinedusing a tachometer. The produced electric power due to the rotation of thehydraulic turbine rotor in minutes is calculated according to Ohm's law.

PDF

___

[1] D. Zh. Bossinov, M.B Koshumbayev. Innovative patent «Hydraulic unit» - № 31166 – 16.05.2016.
[2] D. E. Turalina, D. Zh. Bossinov. «Theoretical and experimental investigations to define optimal parameters of the straight-flow turbine for non-dam hydro power station»// VESTNIK KazNU. (Series Mathematics, Mechanics, Informatics). 2015. - №1 (84). — p. 124 – 131.
[3] Jamnani Dinesh. “Modeling and Simulation of a Single Particle in Laminar Flow Regime of a Newtonian Liquid”, COMSOL conference, Bangalore (2009)
[4] R.Han, J.Cherry and R. Kallernberg. Modeling an Oscillating Water Foil for Hydro-kinetic Power Generator Using COMSOL 3.5a. Excerpt from the Proceedings of the COMSOL Conference 2010 Boston.
[5] Loytsyanskii L.G. Mechanics of liquids and gases. - 6th Edition, Moscow: Science, 1987.- 840 p.
[6] Turbulent Flows by Stephen B. Pope. Cambridge University Press: Cornell University, 2000. – 773 p.
[7] Naixing Chen. AEROTHERMODYNAMICS OF TURBOMACHINERY, ANALYSIS AND DESIGN. Institute of Engineering Thermophysics, Chinese Academy of Sciences, China, 2010. – 461 p.