Hi, This is about "Tower Height and Location" problems in related to Small wind Turbine. I had personally experienced difficult time due to practical problems...
Hey everyone: I'm a mechanical engineering student at Virginia Tech working on a wind turbine for my senior design project. I have been looking at the "wind...
the bearings are wrapped with electrical tape for a interference fit. there are washers and nuts bolting the threaded rod to the inside race. Steve Spence ...
Oh ok, so instead of finding a way to attach the rod to the inside diameter of the bearing, a washer is pressed firmly on top of the inside race by a nut. I...
The charts I see on the power and voltage output from axial flux generator shows quite a bit of voltage variance with respect to shaft speed. This leaves me...
Hello all, I've been reading, planning and dreaming, off and on now, for a couple of decades about getting off-grid, and building a quiet little homestead-y...
These power curves went up recently on our discussion board, http://www.fieldlines.com/ and we thought they would be of interest here. We tested the...
Hi Jim -- Voltage and RPM output have a linear relationship with these alternators. Double the RPM, and you've doubled the voltage. What varies with RPM is the...
Ok... that (mostly) makes sense (to me)... so, here's a followup question. Wouldn't one want to design the generator to be somewhat compatible with the battery...
Hi Jim, the simplest approach is to feed the output directly to your batteries. They can then absorb whatever is available. A seperate circuit connected to...
The Real Seed Catalogue
seeds@...
Nov 20, 2006 11:38 pm
180
the windings are different for each pack voltage. I highly recommend reading the back issues of essn magazine (http://www.rebelwolf.com) and back home ...
... Hello Again I will try to post again. And my first post. Looking at #27 is the inside pipe put on a lathe at all. I am still don't understand this how it...
no lathe work, no heavy tools. there is a pipe inside that just sets the gap between the bearing shells. they are wrapped with electrical tape to make a tight...
Hello Steve Been looking over pictures and think I am getting the bearing part. It looks like 1.5" dia pipe. Question when you say the tail furls does it do...
so... when the tail goes up... do the main blades just turn such that the ends of the rotor are in line with the wind. Why wouldn't it just rotate down wind...
One simple controller is: [] As the windmill comes up to speed, the current starts to flow through the coil and diode to the batteries. When battery voltage...
yes two things I don't see why to short and try to stall the mill, that might wear down the magnets quicker than necessary there is usually some kind of...
Hi Jim =-- As Steve said, that's correct, the stator is wound differently for different system battery bank voltages. It's easy to figure out--if you have an...
Looking at the 'wind class' pictures... I can't understand how the tail of the machine in the pictures helps it furl. I don't see how this machine can furl....
Does anyone know how too get steel magnet plates like this or where. And is there a parts list somewhere I think this could help first timers. I have the...
Steve How does one find magnet plates like this and is there some type of parts list somewhere. I got the magnets in last night. Thks Wayne ... rotates ... On...
You may be able to get the plates from Jim at woodhenge.org. That's where I got mine. This is a moveable tail, it's not fixed. It's designed to move out at...
wear down the magnets? you stall the mill when working on it, or when raising and lowering the tower. semiconductors are usually more reliable than relays. ...
the tail would be so far offline at that point there would be no resistance to the wind to push against (tail and wind would be parallel to wind flow), but...
you don't think magnets wear => loose a percentage of their strength? it wont make a difference to do it on special occasions like you mention... Maybe the...
... Hmmm... I assume that you have seen magnets wear down. I never have. ... Why bother unless the load needs to dissipate energy. Magnetic brakes have been...
Just curious what people thought of this one. I just finished carving some wind turbine blades and was going to treat them with several coats of deck ...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
