What are the design targets? The project involves the design and optimization of a high specific speed centrifugal
pump stage. The optimized stage design should deliver the required head at a target efficiency of 90% with all the stage components and their roughness included while meeting the required suction performance (NPSHR) and axial thrust criteria.
This project carried out by ADT is for a leading pump manufacturer in the world. The main aim is to produce a new pump design that can deliver class leading efficiency. The optimization process is required to cover all the stage components such as impeller, volute with a splitter/cut-water, pump out vanes (POV) and balance holes (BH) to maximize the performance. For all the design tasks ADT’s own software package TURBOdesign Suite is used along with the ANSYS CFX for CFD analysis.
Fig. 1.TURBOdesign1 blade loading comparison between initial design and optimized design.
“The new centrifugal pump stage would deliver class leading performance. Extensive studies on POVs and BH could be used as reference for future work in this area.”
The final optimized design of all the stage components including optimized impeller, volute POV and BH along with the performance, NPSHr and axial thrust estimate.
Discover through this new consultancy summary the initial design process, the optimization of pump stage phase and the final design of this centrifugal pump stage.