Team:Valencia/Windmill
From 2010.igem.org
Alejovigno (Talk | contribs) |
Alejovigno (Talk | contribs) |
||
Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
{{:Team:Valencia/head}} | {{:Team:Valencia/head}} | ||
- | <div id=" | + | <div id="HomeCenter"> |
{{Team:Valencia/to_wb}} | {{Team:Valencia/to_wb}} | ||
<div id="Titulos"> | <div id="Titulos"> | ||
Line 48: | Line 48: | ||
<html> | <html> | ||
<div class="center"><div class="thumb tnone"><div class="thumbinner" style="width:302px;"> | <div class="center"><div class="thumb tnone"><div class="thumbinner" style="width:302px;"> | ||
- | <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" width=" | + | <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" width="400" height="375" id="Valencia_priones" align="middle"> |
<param name="allowScriptAccess" value="sameDomain" /> | <param name="allowScriptAccess" value="sameDomain" /> | ||
<param name="allowFullScreen" value="false" /> | <param name="allowFullScreen" value="false" /> | ||
<param name="movie" value=" | <param name="movie" value=" | ||
- | https://static.igem.org/mediawiki/ | + | https://static.igem.org/mediawiki/igem.org/5/5d/Valencia_windmill.swf" /><param name="quality" value="high" /><param name="bgcolor" value="#ffffff" /> <embed src=" |
- | https://static.igem.org/mediawiki/ | + | https://static.igem.org/mediawiki/igem.org/5/5d/Valencia_windmill.swf" quality="high" bgcolor="#ffffff" width="400" height="375" name="baner_final_sin_btn" align="middle" allowScriptAccess="sameDomain" allowFullScreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" /> |
</object> | </object> | ||
- | <div class="thumbcaption"><b> | + | <div class="thumbcaption"><b>Wind turbine working.</b> </div></div></div></div> |
</html> | </html> | ||
Revision as of 00:43, 28 October 2010
Time goes by...
(El tiempo pasa...)
Follow us:
Our main sponsors:
Our institutions:
Visitor location:
» Home » The Project » Creating Technologies » Microbial Albedo Recorder
Windmill
Theory
The power of the wind passing perpendicularly through a circular area is:
Where
- P is the power of the wind measured in W
- ρ is the density of air measured in kg/m3
- v is the velocity of the wind measured in m/s
- A is the analyzed area
The Betz’s Law demonstrate that the power that is possible to achieve from the wind is:
Therefore the power generated depends on the velocity of the wind passing through the turbine. It can be deduced that maximum power produced by a wind turbine is:
If we adapt this equation to our wind turbine, we need to add some parameters in order to study the interaction between the wind, our propellers and the motor.
Where r is the propeller´s length.
As you may see, power depends on wind speed and helix length
Construction
In our first attempts we tried to connect a small propeller directly to the motor. Unfortunately, the power produced was practically none because of the small size of the propeller. Remind that the power has a strong relation with the propeller length. Therefore, our next step was to increase the propeller size. With this modification we obtained a maximum power of 150mW.
After that, we deduced that the problem arose from the motor, which was not capable of generating enough power. This occurred because we used a DC current motor which works with maximum efficiency at high turn speed. Therefore, connecting the motor directly to the propeller the system was not reaching a high turn speed so the produced power was very low. Hence, the solution was adding a gearbox system able to multiply the turn speed on the motor shaft. This solution forced us to install a new propeller with a much wider area in order to get a higher starting torque.
Therefore:
We tried with different relations until we found the one that best suited our motor, which was 5:1.