# Prototyping
### Twisted Savonius V1
[[File:CAD-v1-savonius.png|border|thumb|CAD of twisted Savonius prototype]]
[[File:Savonius-prototype-v1.jpg|border|thumb|V1 of twisted Savonius prototype]]
We attempted to prototype a twisted Savonius turbine to allow a more continuous application of force when the wind turbine spins. Ideally, both sails would be slightly offset to each other to allow airflow from one airfoil to the other. Such an offset can be seen in the following picture that inspired our design. As the Savonius turbine is based on drag, it has a high starting torque, which will allow for lower self-starting speeds.
[[File:Savonius-twisted-airfoil.png|frameless|border|]]
With our next prototype, we seek to combine a twisted Savonius turbine with a Gorlov turbine (Rajdeep Nath Dr. John Rajan; How to Design and Fabricate a Vertical Axis Wind Turbine: Design, Analysis, and Fabrication using Gorlov and Savonius Blades (p. 75)). We can 3D print the blades but might want to scale down the prototype to decrease printing time.
[[File:Savonius-gorlov-waterpump.jpeg|frameless|border|]]
# Current System
[view and comment on system diagram](https://whimsical.com/RTwJtGcE62ijqnrpdg2m85)
## Equipment manuals__Equipment manuals__
__Aurora 3kW inverter__ - [data sheet](https://drive.google.com/file/d/1b_QylTKJzde8saR7A5cHfEcUz2PQZ7JJ/view?usp=sharing)</br>
__Anemometer__ </br>
__Wind direction meter__ </br>
## Generator and shaft
## Tower
## Blades
## Anemometer - wind speed measuring
[[File:Anemometer-roof.jpeg|400px]]
We are using a Vortex wind sensor. One revolution per second equals 2.5 mph. Since our anemometer has a relay (a mechanical switch), it creates a _switch bounce_switch bounce. Therefore, we need a debounce circuit. Please refer to [[Electrical Control Unit]] for the repository and more information. # Prototyping ### Twisted Savonius V1 [[File:CAD-v1-savonius.png|border|thumb|CAD of twisted Savonius prototype]][[File:Savonius-prototype-v1.jpg|border|thumb|V1 of twisted Savonius prototype]]We attempted to prototype a twisted Savonius turbine to allow a more continuous application of force when the wind turbine spins. Ideally, both sails would be slightly offset to each other to allow airflow from one airfoil to the other. Such an offset can be seen in the following picture that inspired our design. As the Savonius turbine is based on drag, it has a high starting torque, which will allow for lower self-starting speeds. [[File:Savonius-twisted-airfoil.png|frameless|border|]] With our next prototype, we seek to combine a twisted Savonius turbine with a Gorlov turbine (Rajdeep Nath Dr. John Rajan; How to Design and Fabricate a Vertical Axis Wind Turbine: Design, Analysis, and Fabrication using Gorlov and Savonius Blades (p. 75)). We can 3D print the blades but might want to scale down the prototype to decrease printing time. [[File:Savonius-gorlov-waterpump.jpeg|frameless|border|]]
# Research and background knowledge