Task 3.1: Development of a design tool for variable speed Francis turbines
This task aim to produce the hydraulic and mechanical design of the Francis turbine. This requires a parametric design tool where the main variable design parameters will be: material quality, material thickness, reaction ratio, rotational speed, runner diameters and the energy conversion along the streamlines in the turbine runner. Such a design tool is not available, so it has to be developed in this task. The new turbine design will focus on the geometry of the guide vanes, runner and a new type of guide vanes in the draft tube. The design parameters will be programmed in to a design tool where the parametric design study can be carried out. The design tool will be programmed in such a way that it can communicate with the CFD- and FSI-analysis software Ansys. The design parameters will be used as the first input(ramping rate, flow rate, etc.) from WP2 WP4 and WP5.
Deliverables and milestones
D3.1 – Design tool for variable speed Francis turbines
Milestones:
- MS3 – Hydraulic and mechanical design of the turbine based on empirical data
- MS4 – Report from the hydraulic design of the Francis turbines
D3.2 – Guide vane system in the draft tube
Milestones:
- MS9 – Report from the FSI-analysis of the Francis turbine
- MS11 – Mechanical design of the guide vanes in the draft tube of the model turbine
D3.4 – Hydraulic and mechanical design of the Francis model turbine
Milestones:
- MS5 – Optimization methodology for parametric turbine design
- MS6 – Numerical mesh for the FSIanalysis is established
- MS10 – Mechanical design of the guide vanes and runner of the model turbine
