... It provides long-term benefits with lower ownership costs over the lifetime of the turbine. A new 24-m rotor features state-of-the-art hub and blade technology with superior aerodynamics providing a larger swept area. This increases the annual energy production (AEP) of the NPS 60-24 by up ...
... two iron balls attached to arms that pivot at the top and has a lever halve way on the arms that then controls any item that you want in this case blade pitch. Think off using a trailer stub shaft to attach the blade to (3 off) these units = 3 blades. Place an offset flat plate on the outer shaft ...
The blade calculator (on the main site) might be useful for you to see the attack angle you want at each point along the blade. Then you can work out what % of the circumference of a circle (the size fo the pipe) would approximate ...
Thanks windgat for the codes to find blade profile calculation. I was so confused at this topic and had no idea how I can calculate this one. I tried to search in many websites but nothing was enough satisfactory. Your help was indeed very ...
... two iron balls attached to arms that pivot at the top and has a lever halve way on the arms that then controls any item that you want in this case blade pitch. Think off using a trailer stub shaft to attach the blade to (3 off) these units = 3 blades. Place an offset flat plate on the outer shaft ...
Hello Forum, My name is Mike Holmes. I came across your site by accident this evening. I live in Ireland and am in the process of building a 6.5 meter turbine . Is it possible to put in the Gottingen GOE 222 Airfoil data on the Blade calculator? Great site , you guys are very busy.Mike
Hi Innovo. I wrote the PHP code for that page, and it is based on some fairly complex aerodynamic formulas... I still have quite figured out how to apply the Reynold's number... Sure I could try and do something for water, but I guess the base formulas are completely different, due to the fact that ...
I love the blade calculator, But :) if the person that made that could contact me or make a page for use in water that would be good. I have a water system that I am having problems designing a blade for and would actually like ...
... magnet strenght and/or the number of winds. 3. The question does not make sense. Volts per RPM is a sensible measure. Watts per square meter of blade also makes sense. Watts is power, RPM is speed - to confuse the two is common. A huge turbine turning slowly will produce far more watts (i.e. ...
Each blade is at least 1m long. Perhaps the diameter is about 2.5m. As far as I know, its intended as a new design which is claimed to be more efficient than the more usual thin blade design.
Must be somekind of high torque blade design. Surely they can't go fast. Looks like it captures the wind somehow, but the blades is not pitched very much. Hmm.. Hard to think it's effecient in any kind of way.
Hi Windgat Still around and working on my wind Gen. Did test on my three blade vawt today and seem pretty good. I have changed my plans some what, I want to first build the mechanical drive systen then adapt the coils that I have built and then buy and fit the ...
Hi there. I believe the height restriction for a Ham radio mast is 9m, so perhaps best to stick to that, including the blade height. That makes for quite a tall pole - I would be interested to see how you intend to erect it, and what stays you plan on using. The force in a high wind ...
... find a structural engineer to certify a building plan and submit it to the local council in the Parow district where I live. I manafactured my own blades using Modified PVC pipe and am using a 5 blade rotor with 1:3 ratio on my input shaft. On testing I found the noise level to be very low. I initially ...
... RPMS. The alterantor also has a voltage regulator which simplifies your wiring. The big problem is again the RPMs. The pulley for the windturbine(blade Side) would need to be about 450mm, and on the alterator about 60mm to produce 2000RPM required on the alternator @ about 267 RPM blade speed. ...
... crucial question - start there. You may find a very high RPM is needed - see posts elsewhere on this site re alternators. 2. I don't. There is a blade calculator on the main page however that can be used to calculate the optimal blade config for some aerofoil shapes. If you come somewhere close ...
Try to makethe core of the blade 90 deg to the shaft 90deg.jpeg It is 90 degrees to the shaft I was told to try it at 9 degrees and see how it works. Also the turbine does not try to turn backwards it trys to turn at low wind speed and ...
Hi All Does anyone have a blade drawing they are willing to share? or what Type of blades, shapes work best... I can create 3d models and will in return share those to make machining or manufacture easier.
... whit the turbines is that thy don't start by them self thy need help I solved the problem my making variable pitch angels so if the wind hits the blade it will move and it will give lift in the rite angle as you can see there are weight on the blades so that the centrifugal force pulls it back ...