A blade should start turning at 12 km/h (7 mph) although there is no power at that speed. I expect only 60 watts for my blade at 16 km/h (10 mph) and 200 watts at (24 km/h) 15 mph, and 480 watts at 32 km/h (20 mph). Every double in speed increases potential power, eight times.
Blade design is complex. Some blades work better in high winds. I'm aiming for low winds with a big blade. That's why I did not carve it by eye.
@TeacherPhilEnglish If this does not work, I'll do more sanding until it works (LOL) or I'll buy this one: magnet4sale com/8.5-Commercial-Grade-High-Efficient-and-Reinforced-Wind-Generator-Blades html
@TeacherPhilEnglish I have 15 mph average. It is better than some locations because it is near a lake. It is in the suburbs though. So I can't put up a tower.
There is a funnel effect, which I identified over the years, between some large houses. So I am going to fix mount it in one direction. I have a broken high efficiency furnace motor, which I am going to attach to it. It is very good at generating electricity. I removed the broken controller.
@definitionofis They have windmills here near the bay and they don't really turn even with about 20kmh wind. I think they need help to start moving with heavy wind. Your light cedar might do the trick.
@TeacherPhilEnglish I learned a lot since writing comments here three months ago. I don't have as much wind as I thought. I added two blades to make it four and it turns very easily, with no load now.
I have no hope of generating much electricity without a tower.
Here is my latest video where I see it turning for the first time, WITH the generator attached:
A blade should start turning at 12 km/h (7 mph) although there is no power at that speed. I expect only 60 watts for my blade at 16 km/h (10 mph) and 200 watts at (24 km/h) 15 mph, and 480 watts at 32 km/h (20 mph). Every double in speed increases potential power, eight times.
Blade design is complex. Some blades work better in high winds. I'm aiming for low winds with a big blade. That's why I did not carve it by eye.
definitionofis 1 year ago
lot of work wow
TeacherPhilEnglish 1 year ago
@TeacherPhilEnglish If this does not work, I'll do more sanding until it works (LOL) or I'll buy this one: magnet4sale com/8.5-Commercial-Grade-High-Efficient-and-Reinforced-Wind-Generator-Blades html
(Mine is 1/3 the weight).
definitionofis 1 year ago
@definitionofis you can get it to work. I would just draw one sketch on each end and just plane it down to size freehand. Do you have lots of wind?
TeacherPhilEnglish 1 year ago
@TeacherPhilEnglish I have 15 mph average. It is better than some locations because it is near a lake. It is in the suburbs though. So I can't put up a tower.
There is a funnel effect, which I identified over the years, between some large houses. So I am going to fix mount it in one direction. I have a broken high efficiency furnace motor, which I am going to attach to it. It is very good at generating electricity. I removed the broken controller.
definitionofis 1 year ago
@definitionofis They have windmills here near the bay and they don't really turn even with about 20kmh wind. I think they need help to start moving with heavy wind. Your light cedar might do the trick.
TeacherPhilEnglish 1 year ago
@TeacherPhilEnglish I learned a lot since writing comments here three months ago. I don't have as much wind as I thought. I added two blades to make it four and it turns very easily, with no load now.
I have no hope of generating much electricity without a tower.
Here is my latest video where I see it turning for the first time, WITH the generator attached:
youtube com watch?v=zkVVGsB0bzg
definitionofis 11 months ago