Re: Re: Re: Re: Gee, I'm building one right now!
In the "bad old days" of the stock market bubble (1999-2000) I analyzed a company which was going to manufacture a fuel cell for residential use. It was supposed to be more economic than gas or electricity delivered by a utility. Turns out that one of the great advantages of self-generation, at least in the U.S., is the absence of sales and franchise taxes, taxes on transportation etc. In parts of the US where natural gas was expensive the fuel-cell generation process was at a severe disadvantage.
It turns out that solar panels were more attractive on a long-term basis (as the catalyst in the exchanger had a life of only a couple years or so.)
If I were to build a wind propelled turbine I would look for a return on investment of at least 20%, taking into consideration all of the problems in implementation and design.
sek said:But think about it. If a year of successfull use of your construction covers it's cost, and the savings from then on could accumulate to a rough $5k a year, wouldn't this actually make you rich?
With $5k each year, a reasonable interest rate and the fact that you actually don't have to reduce your living standard by simply saving all of it, your'e a made man in a couple of years...
In the "bad old days" of the stock market bubble (1999-2000) I analyzed a company which was going to manufacture a fuel cell for residential use. It was supposed to be more economic than gas or electricity delivered by a utility. Turns out that one of the great advantages of self-generation, at least in the U.S., is the absence of sales and franchise taxes, taxes on transportation etc. In parts of the US where natural gas was expensive the fuel-cell generation process was at a severe disadvantage.
It turns out that solar panels were more attractive on a long-term basis (as the catalyst in the exchanger had a life of only a couple years or so.)
If I were to build a wind propelled turbine I would look for a return on investment of at least 20%, taking into consideration all of the problems in implementation and design.
Wind generator
Hi, I just sold some parts to a guy who is a regular on Otherpower.com. Please check my sale on Ebay for a large BLDC robot motor. I have quite a few of these and would like to see them put to good use. They generate three phase a.c. and are very efficient. The rotor is made from rare earth magnets. 65 RPM will produce 60 cycles at 235 volts. The motor is 22 inches diameter and weighs 120 pounds.
Hi, I just sold some parts to a guy who is a regular on Otherpower.com. Please check my sale on Ebay for a large BLDC robot motor. I have quite a few of these and would like to see them put to good use. They generate three phase a.c. and are very efficient. The rotor is made from rare earth magnets. 65 RPM will produce 60 cycles at 235 volts. The motor is 22 inches diameter and weighs 120 pounds.
Attachments
Re: Wind generator
Motorhead,
---U R G E N T ---
Please contact me by PM and send me picture(s) and your telephone number, asking price and qty. available. I could not view the one you posted. I may be interested in one or all of them for windpower applications. Thanx!
BTW, how much current will they make and watts?
gearheaddruid said:
Motorhead,
---U R G E N T ---
Please contact me by PM and send me picture(s) and your telephone number, asking price and qty. available. I could not view the one you posted. I may be interested in one or all of them for windpower applications. Thanx!
BTW, how much current will they make and watts?
Re: Re: Wind generator
Gearheaddruid,
OOPS! My apologies to Gearheaddruid. I was not paying enough attention and cannot now edit my post. I wouldn't call somone a motorhead to their face unless I knew/thought that was their handle. My mistake.
I managed to find your item on ebay. Yes, definitely interested in discussing these motors. Could be just what I'm looking for. For shipping maybe just strap a bunch on a pallett with each motor stuffed into an open top HD grocery store cardboard box, with cardboard cover on the entire mess and send by motor freight. No bother making crates or packing. We can discuss all this when we connect.
Do you think it would be possible to machine and insert a common shaft through the rotor center bearing of several of these as a pack to drive them all in parallel from one source?
rcavictim said:
Gearheaddruid,
OOPS! My apologies to Gearheaddruid. I was not paying enough attention and cannot now edit my post. I wouldn't call somone a motorhead to their face unless I knew/thought that was their handle.
My mistake. I managed to find your item on ebay. Yes, definitely interested in discussing these motors. Could be just what I'm looking for. For shipping maybe just strap a bunch on a pallett with each motor stuffed into an open top HD grocery store cardboard box, with cardboard cover on the entire mess and send by motor freight. No bother making crates or packing. We can discuss all this when we connect.
Do you think it would be possible to machine and insert a common shaft through the rotor center bearing of several of these as a pack to drive them all in parallel from one source?
BLDC motors
I do not see any reason you could not put them on a common shaft. They have a staggered stator so there is no "cogging" as they are turned. I do not know for sure but I think you could get 3kw out of one without a problem. I will try and measure the resistance of the windings and post it here. I currently have 20 of these motors. Here is a picture of the rotor assembly. I would love to figure out a way to remove the magnets. Could make for a killer woofer motor.
I do not see any reason you could not put them on a common shaft. They have a staggered stator so there is no "cogging" as they are turned. I do not know for sure but I think you could get 3kw out of one without a problem. I will try and measure the resistance of the windings and post it here. I currently have 20 of these motors. Here is a picture of the rotor assembly. I would love to figure out a way to remove the magnets. Could make for a killer woofer motor.
Attachments
That large DIY wind turbine project I spoke of now has it's own thread at
http://www.diyaudio.com/forums/showthread.php?s=&threadid=80259&perpage=10&pagenumber=1
http://www.diyaudio.com/forums/showthread.php?s=&threadid=80259&perpage=10&pagenumber=1
A few months back Silicon Chip Mag here in Oz http://www.siliconchip.com.au/ ran a project over a couple of months on building a wind generator based on a Fischer and Pykel washing machine motor. Worth a read. (you can buy the articles online)
I'm surprised nobody mentioned this thread:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=63341&highlight=
Max
http://www.diyaudio.com/forums/showthread.php?s=&threadid=63341&highlight=
Max
quote
remove the magnets. Could make for a killer woofer motor.
unquote
why not just use the motor to drive the piston directly
servodrive?
http://www.servodrive.com/basstech7.html
seem to remember the aformentioned capstan motors were ideal...
remove the magnets. Could make for a killer woofer motor.
unquote
why not just use the motor to drive the piston directly
servodrive?
http://www.servodrive.com/basstech7.html
seem to remember the aformentioned capstan motors were ideal...
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