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Research on Retrofit Technique of Hydraulic Turbine Based on Numerical Test

Author: SunJianBo
Tutor: LaiXiDe
School: West China University
Course: Water Resources and Hydropower Engineering
Keywords: Turbine transformation Numerical experiments Runner Hydropower Station
CLC: TK730
Type: Master's thesis
Year: 2006
Downloads: 114
Quote: 3
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Abstract


In the power plant has been built 20 years ago in China , due to the technical conditions at the time , a large part of the unit , there are performance indicators backward, poor manufacturing quality and selection of design unreasonable or too serious flow components wear poor performance , these problems have been a serious threat to the safety of the crew and power plant production and economic operation . Therefore , running a large number of turbine equipment transformation has become a very urgent task . How to use modern technology of advanced accelerated turbine transformation technology development , and improve the reliability of the design , and lower research costs , shorten the cycle of research and development is the most pressing problem in the hydropower industry . Turbine flow characteristics of the components transformation for the hydropower turbine Uprating engineering actual need to study and formulate the flow components of rehabilitation programs ; explore transformation through the turbine flow passage components based on numerical experiments \full flow , gradually replacing the traditional methods that rely on \Road, three-dimensional viscous flow field numerical simulation and efficient prediction calculation method , to explore the transformation of technology based on the numerical test instead of the turbine model test . This study for the Yingxiu Bay Hydropower Station in Sichuan Uprating program argument , proposed to reduce the the modified the optimal turbine units flow , improve the entire operating range , according to the restrictions now Yingxiuwan the actual operation of the power station and the flow components new design wheel hydraulic efficiency target . Analysis of qualitative research , as a reference Ertan runner runner design two rehabilitation programs : ( 1 ) only transformation runner ( 2 ) while transforming the water guide in the guide vanes and runner . According to the actual Yingxiuwan station may run the range of operating conditions , to determine the typical operating conditions of 14 , and two rehabilitation programs runner visco

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CLC: > Industrial Technology > Energy and Power Engineering > Water, energy, hydraulic machinery > Hydraulic prime mover,turbine > General issues
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