Refer to the low specific speed Francis turbine blade design principle and double-suction pump structure. Then, design a horizontal double-channel hydraulic turbine Francis. Through adding different guide vane airfoil and and no guide vane airfoil on the hydraulic conductivity components to predict hydraulic turbine energy and using Fluent software to numerical simulation that the operating conditions and point. The results show that the blade pressure surface and suction surface pressure is low when the hydraulic turbine installation is added standard positive curvature of the guide vane and modified positive curvature of guide vane. Therefore, the efficiency of energy recovery is low. However, the pressure of negative curvature guide vane and symmetric guide vane added on hydraulic turbine installations is larger than that of the former ones, and it is conducive to working of runner. With the decreasing of guide vane opening, increasing of inlet angle, flow state gets significantly worse. Then, others obvious phenomena are that the reflux and horizontal flow appeared in blade pressure surface. At the same time, the vortex was formed in Leaf Road, leading to the loss of energy. Through analyzing the distribution of pressure, velocity, flow lines of over-current flow in the the back hydraulic conductivity components in above programs we can known that the hydraulic turbine installation added guide vane is more reasonable than without guide vanes, it is conducive to improve efficiency of energy conversion.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Research of performance prediction to energy on hydraulic turbine


    Contributors:
    Quan, H. (author) / Li, R.N. (author) / Li, Q.F. (author) / Han, W. (author) / Su, Q.M. (author)


    Publication date :

    2012


    Size :

    7 Seiten, 5 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Turbine and hydraulic fluids: optimizing oxidation performance

    Roell,B.C. / Cerda De Groote,C.L. / Lubrizol,US | Automotive engineering | 1998


    Small hydraulic turbine drives

    Rostafinski, W. A. | NTRS | 1969


    Turbine unit for hydraulic installation

    PHAN HAI TRIEU / LOISEAU FABRICE / BOMBENGER ANTOINE | European Patent Office | 2016

    Free access

    Advanced Performance Hydraulic Wind Energy

    Jones, Jack A / Bruce, Allan / Lam, Adrienne S. | NTRS | 2013