It 'could' be done, but it would be complex, and prone to inefficiency or failure. Depending on how many phases your try to run, you would need a slip ring...
896
Mart Hale
mart85
Feb 1, 2008 3:57 pm
Ok, If you look at my video, I am not building a windmill, but rather something simpler. I will use multiple phases, and I will put the bridge rectifiers...
897
limodriverjp
Feb 1, 2008 4:49 pm
Hello My name is Jeff from NH and I know I do not have a Axialfux setup but on the blades, I have a Air-X and it came with a 3 blades setup and I went out and...
898
Steve Spence
sspence65
Feb 1, 2008 4:58 pm
3 seems to be optimal, unless you are talking to the manufacturer of a 6 blade kit manufacturer. Steve Spence http://www.green-trust.org ... From:...
899
Jeff
limodriverjp
Feb 1, 2008 5:29 pm
Do you think if I took off 3 of the blades and left 3 on of the longer blabes would be better?? I hope this summer to make a Axialflux setup. I hope to get...
900
Steve Spence
sspence65
Feb 1, 2008 5:46 pm
I believe the 3 longer blades will be good. Steve Spence http://www.green-trust.org ... From: "Jeff" <Jeff@...> To: <axialflux@yahoogroups.com> Sent:...
901
Brian
bohica19001
Feb 1, 2008 6:25 pm
Dave, I installed a drainwater heat exchanger to capture heat going down the drain and use it to preheat the water going into the water heater. This works all...
902
o1bigtenor
Feb 1, 2008 7:11 pm
... Why not do to solar hot water heating - work better for less $? Darald...
903
mgrogg51
Feb 1, 2008 9:30 pm
... When I used to live near Cleveland Ohio, we had a January, where the sun did not shine once, all month. Actually, the sunless period extended from late...
904
Dan
qazxcvb21
Feb 1, 2008 10:02 pm
... I agree with Steve, three would be better but being longer will only increase torque, not speed. TSR(Tip speed ratio) refers to how fast a blade will...
905
Steve Spence
sspence65
Feb 1, 2008 10:02 pm
I think it's torque we are looking for, not increased speed. the speed is fine, but torque provides the amps. ... only ... you ... a ... being...
906
Brian
bohica19001
Feb 1, 2008 11:08 pm
Darald, Solar water heating maybe in the future. When I bought that exchanger it was about $300.00. Probably more now since the price of copper is up. If solar...
907
David and Melanie Mik...
dem45133
Feb 2, 2008 2:49 am
Actually I though I'd said that about our fall and winters... here near Cincinnati. Best would be a combination. I do like the heat recovery for the drain...
908
Techniker der übe...
kb6okh
Feb 2, 2008 2:20 pm
I believe it is interrelated, and, closely coupled. However... unless he is experiencing a failure to start in low wind (with the short blades) there is no...
909
Steve Spence
sspence65
Feb 2, 2008 2:21 pm
The more swept area, the more power collected, this means longer blades. ... the ... with ... and...
910
Techniker der über...
kb6okh
Feb 2, 2008 2:39 pm
What about longer cord airfoils ? Isn't this simply a matter of "square feet" or what the pilots call "wing loading". I.E. a wing 2 times as wide can provide...
911
Techniker der übe...
kb6okh
Feb 2, 2008 2:39 pm
I was reading one of the how-to articles, and, IIRC the author wrote that the disk-drive magnets needed to be cut in half, then stacked. Why ? I'm having...
912
Steve Spence
sspence65
Feb 2, 2008 2:41 pm
yes, the fragment would still have north and south poles. there is no gain in stacking that I can see. if you needed to stack for some reason, just use smaller...
913
Steve Spence
sspence65
Feb 2, 2008 2:43 pm
I can't speak to that, I'm not an expert in aerodynamics. ... provide ... lower ... travel ... 10mph...
914
Sal Cerda
sal.cerda
Feb 2, 2008 3:14 pm
I'm not either, but I think there are two factors here in producing the power; RPM and torque. You need both. Just having higher torque at a low speed will...
915
Techniker der über...
kb6okh
Feb 2, 2008 3:14 pm
Me either.... I just figured, if we want to draw energy out of moving air, we should try to understand the limitations of paddlewheels. suggested reading --> ...
916
Steve Spence
sspence65
Feb 2, 2008 3:18 pm
we already have the speed we want. I thought what the OP was asking was would longer blades collect more power. the answer is yes, it can. The axial flux is...
917
Jeff
limodriverjp
Feb 2, 2008 11:03 pm
Ok I guess I did it when I ask , Thanks all for you Info and will try the 3 blades that are longer and it will give me a faster start and power on it. Like I...
918
dem45133
Feb 2, 2008 11:03 pm
From previous replies in this thread... "As 3 blades are the most eff, if they won't do it, nothing will" "I like the way you think, Dave, but I'm not sure you...
919
ferrand
ferrandst
Feb 2, 2008 11:04 pm
All that is said below about Contra Rotation is quite correct, and was dealt with in the design of the Trimblemill 1976-78 A machine in N E Scotland has been...
920
Techniker der über...
kb6okh
Feb 2, 2008 11:04 pm
Sorry for the tangent then; "the design is optimized for 650 RPM" MOST EXCELLENT ! with that info, and the KW rating & airspeed profiles for a particular...
921
Steve Spence
sspence65
Feb 2, 2008 11:08 pm
That's all wonderful. keep in mind this is a axial flux discussion group, so some of your out of the box thinking may not be appropriate for this group. Steve...
922
hiburd28
Feb 2, 2008 11:20 pm
It would be nice if some one had the plans for the most efficient, cost effective, setup. from the the wind turbine generator, wireing, batteries, and a...
923
Steve Spence
sspence65
Feb 2, 2008 11:21 pm
That would be nice. ... cost...
924
o1bigtenor
Feb 3, 2008 12:09 am
On Feb 2, 2008 8:36 AM, <=?iso-8859-1?q?Techniker_der_=FCberholten_Systeme_> ... I for one enjoy the branching tendrils but do wish that a wee bit of trimming...
