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__System Diagram ### System diagram - Wind Turbine__</br>wind turbine
Notes - Wind Turbine ISR-G (view source)
Revision as of 14:47, 22 October 2020
, 14:47, 22 October 2020no edit summary
## 10/22/2020
[[File:Wind-turbine-system-diagram-v1.png|850px]]
[view and comment on system diagram](https://whimsical.com/RTwJtGcE62ijqnrpdg2m85)
### Anemometer mount on roof
The anemometer is mounted at an altitude where the wind turbine could possibly go. However, it is slightly offset from the gable. Ideally, the wind turbine would sit on the gabble as the wind speeds up when it passes over that point. Furthermore, I added a real-time clock to the system and connected the Arduino to a power supply that is independent from the inverter, which is turned off every night.
<div><ul>
<li style="display: inline-block; vertical-align: top;"> [[File:Anemometer-roof.jpeg|thumb|none|500px|Anemometer mount]] </li>
<li style="display: inline-block; vertical-align: top;"> [[File:Anemometer-house.jpeg|thumb|none|500px|The anemometer is mounted at a height of ]] </li>
</ul></div>
### Approximate size of Savonius turbine
Mechanical power = 0.5 x p x A x V^3 x Cp
_Cp for Savonius turbine_ = 0.05-0.1</br>
_Cp for Darrieus turbine_ = 0.3-0.38</br>
_Cp for Gorlov turbine_ = 0.3-0.35
If we use a conservative approximation, we will probably have wind speeds up to 15 m/s and a power-coefficients of around 0.08 with a refined Savonius turbine prototype. Thus, a Savonius turbine would have to cover an __area of 17.83 m^2__ (2m x 8.9m) to output 3000 W of mechanical power. In comparison, a Darrieus or Gorlov turbine with a power coefficient of 0.3 would only require an __area of 4.7 m^2__ (2m x 2.377m) and will lighter due to its mechanical features.
### Next Steps
- how can we charge the 24V battery system in the house?
- mount wind direction sensor and determine average wind direction
- create CAD model of the house to run fluids analysis. How will the "bump-outs" affect wind from different directions? Will they channel the wind?
- kick-off with wind energy group on Saturday
- research sheet metal Savonius wind turbine options
- write up report with learning insights from Coursera course
## 10/15/2020
### Wind Speed Measuringspeed measuring
[[File:Porch-anemometer.jpg|border|thumb|Anemometer data logger prototype on porch]]
- site observation and assessment
### Next Stepssteps
- finish structural mechanics section
## 9/24/2020
### Wind Turbine Terminologyturbine terminology
[[File:Nacelle-wind-turbine.JPG|border|thumb|Drivetrain of the nacelle]]
Foundations are oftentimes made out of concrete.
### Wind Energy Extractionenergy extraction
[[File:Efficiency-betz-limit.JPG|border|thumb|Mechanical power of a wind turbine]]
### Wind Drag drag on Solar Panel Plate solar panel plate
