Application of the Modified Inverse Design Method in the Optimization of the Runner Blade of a Mixed-Flow Pump

To improve the design speed and reduce the design cost for the previous blade design method, a modified inverse design method is presented. In the new method, after a series of physical and mathematical simplifications, a sail-like constrained area is proposed, which can be used to configure different runner blade shapes. Then, the new method is applied to redesign and optimize the runner blade of the scale core component of the 1400-MW canned nuclear coolant pump in an established multi-optimization system compromising the Computational Fluid Dynamics (CFD) analysis, the Response Surface Methodology (RSM) and the Non-dominated Sorting Genetic Algorithm-II (NSGA-II). After the execution of the optimization procedure, three optimal samples were ultimately obtained. Then, through comparative analysis using the target runner blade, it was found that the maximum efficiency improvement reached 1.6%, while the head improvement was about 10%. Overall, a promising runner blade inverse design method which will benefit the hydraulic design of the mixed-flow pump has been proposed.

[1]  John Tuzson,et al.  Centrifugal Pump Design , 2000 .

[2]  Yang Liu,et al.  A MapReduce Based High Performance Neural Network in Enabling Fast Stability Assessment of Power Systems , 2017 .

[3]  Masaru Ishizuka,et al.  Design optimization of axial flow hydraulic turbine runner: Part II—multi‐objective constrained optimization method , 2002 .

[4]  Jane E. Sargison,et al.  Design and performance evaluation of a pump-as-turbine micro-hydro test facility with incorporated inlet flow control , 2015 .

[5]  Tony Lancaster,et al.  Efficient estimation and stratified sampling , 1996 .

[6]  Young-Seok Choi,et al.  High performance hydraulic design techniques of mixed-flow pump impeller and diffuser , 2015 .

[7]  M. Zangeneh,et al.  A compressible three‐dimensional design method for radial and mixed flow turbomachinery blades , 1991 .

[8]  S. Yuan,et al.  Centrifugal pump performance drop due to leading edge cavitation , 2012 .

[9]  F. Gao,et al.  Analysis of reactor coolant pump transient performance in primary coolant system during start-up period , 2013 .

[10]  John S. Anagnostopoulos,et al.  A fast numerical method for flow analysis and blade design in centrifugal pump impellers , 2009 .

[11]  Shuliang Cao,et al.  Hydrodynamic design of rotodynamic pump impeller for multiphase pumping by combined approach of inverse design and CFD analysis , 2005 .

[12]  Young-Seok Choi,et al.  Design technique to improve the energy efficiency of a counter-rotating type pump-turbine , 2017 .

[13]  Rong Xie,et al.  Derivation of the Mathematical Approach to the Radial Pump’s Meridional Channel Design Based on the Controlment of the Medial Axis , 2017 .

[14]  Peng Wang,et al.  Multi-objective optimization of a mixed-flow pump impeller using modified NSGA-II algorithm , 2015 .

[15]  Ji Pei,et al.  Multi-point optimization on meridional shape of a centrifugal pump impeller for performance improvement , 2016 .

[16]  Pericles Pilidis,et al.  A Dynamic Convergence Control Algorithm for the Solution of Two-Dimensional Streamline Curvature Methods , 2009 .

[17]  Shuliang Cao,et al.  Optimization design of a reversible pump–turbine runner with high efficiency and stability , 2015 .

[18]  Michael Casey,et al.  A New Streamline Curvature Throughflow Method for Radial Turbomachinery , 2010 .

[19]  Shun Kang.  Numerical Investigation of a High Speed Centrifugal Compressor Impeller , 2005 .

[20]  Li Bai,et al.  Parametric Design of an Ultrahigh-Head Pump-Turbine Runner Based on Multiobjective Optimization , 2017 .

[21]  Masaru Ishizuka,et al.  Design optimization of axial flow hydraulic turbine runner: Part I—an improved Q3D inverse method , 2002 .

[22]  Ma Xiaoyi,et al.  Evaluation of border irrigation performance based on spatial variability of infiltration parameters. , 2012 .

[23]  Xiaofang Wang,et al.  Effects of staggered blades on the hydraulic characteristics of a 1400-MW canned nuclear coolant pump , 2016 .

[24]  Peng Wang,et al.  Redesign of a Compressor Stage for a High-Performance Electric Supercharger in a Heavily Downsized Engine , 2017 .

[25]  João Eduardo Borges,et al.  A Three Dimensional Inverse Method in Turbomachinery: Part I — Theory , 1989 .