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Generators that use Wind power.



 
 
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  #1  
Old July 13th 08, 08:44 AM posted to rec.aviation.homebuilt
a[_2_]
external usenet poster
 
Posts: 1
Default Generators that use Wind power.

I will be reading the comments in this newsgroup for the next few days and
learning from those that are positive and helpful.

I know that this is an out of topic posting to this newsgroup. That is a
reason that I am posting here. I want to learn from people that are not in
the business of cogenerating energy. I want to read in this newsgroup
valuable comments from a fresh perspective. By off topic posting to random
newsgroups, herein I may gain an honest response.

There are definition links for you to read. There is physics data, and NASA
data that is referenced. I would like your honest opinion. I would like to
read logical responses. Childish screaming about commercial posting or out
of topic posting to this newsgroup will not slow my quest to find logical
and valuable responses. Someone on this newsgroup will be able to think for
themselves and will give me an honest and logical response that I may learn
from and potentially use. I look forward to your opinion.

www.reasonablepower.com

Topic: WIND POWERED GENERATORS.

I would like to introduce you to a new wind powered generator company.

These are specifically for LOW wind speeds. These are affordable sized for
the average (non-city) U.S. homeowner.

This is a very small company. These are being built one at a time.

The page is at ReasonablePower.com

http://www.reasonablepower.com

Please take the time to look at the page.

If you have a valuable response whereby I may learn and do better as I build
this company, please post your response to this newsgroup. I will be reading
postings herein for a while.

Thank you.


  #2  
Old July 13th 08, 02:05 PM posted to rec.aviation.homebuilt
Scott[_7_]
external usenet poster
 
Posts: 256
Default Generators that use Wind power.

a wrote:
I will be reading the comments in this newsgroup for the next few days and
learning from those that are positive and helpful.

I know that this is an out of topic posting to this newsgroup. That is a
reason that I am posting here. I want to learn from people that are not in
the business of cogenerating energy. I want to read in this newsgroup
valuable comments from a fresh perspective. By off topic posting to random
newsgroups, herein I may gain an honest response.

There are definition links for you to read. There is physics data, and NASA
data that is referenced. I would like your honest opinion. I would like to
read logical responses. Childish screaming about commercial posting or out
of topic posting to this newsgroup will not slow my quest to find logical
and valuable responses. Someone on this newsgroup will be able to think for
themselves and will give me an honest and logical response that I may learn
from and potentially use. I look forward to your opinion.

www.reasonablepower.com

Topic: WIND POWERED GENERATORS.

I would like to introduce you to a new wind powered generator company.

These are specifically for LOW wind speeds. These are affordable sized for
the average (non-city) U.S. homeowner.

This is a very small company. These are being built one at a time.

The page is at ReasonablePower.com

http://www.reasonablepower.com

Please take the time to look at the page.

If you have a valuable response whereby I may learn and do better as I build
this company, please post your response to this newsgroup. I will be reading
postings herein for a while.

Thank you.


Put more info on your website. Windmill size and price is not enough to
go on. How much power will be generated at various windspeeds? What is
included in your price?

Torque? Even though the "lift" of wind turbine blades may be low, most
blades on commercial units are 90 feet long or so. So, if you were just
producing 1 pound of lift at the tip only (not true since the blade
produces lift along the entire length), you would have 90 ft./pounds of
torque at the hub per blade, no? So commercial 3 bladed turbines would
produce 270 ft/pounds of torque at the hub (90 per blade). What is the
value of your "lift" produced out 6 feet (on your 12' diameter model, 15
blades)? If I calculate correctly, each blade would need to generate 3
pounds of "lift" at the tip to get 18 ft/pounds of torque per blade for
a total of 270 ft/pounds to match the wind turbine. How much wind would
be needed to lift a 3 pound weight at the tip of your blade? To me,
torque is torque. You can generate the same amount of torque with a lot
of force over a short distance or a little force over a long distance.

Work (Watts) is what's important here. How much work can your units
produce (in Watts)?

  #3  
Old July 13th 08, 02:17 PM posted to rec.aviation.homebuilt
Scott[_7_]
external usenet poster
 
Posts: 256
Default Generators that use Wind power.

Scott wrote:



Topic: WIND POWERED GENERATORS.

I would like to introduce you to a new wind powered generator company.

These are specifically for LOW wind speeds. These are affordable sized
for the average (non-city) U.S. homeowner.

This is a very small company. These are being built one at a time.

The page is at ReasonablePower.com

http://www.reasonablepower.com

Please take the time to look at the page.

If you have a valuable response whereby I may learn and do better as I
build this company, please post your response to this newsgroup. I
will be reading postings herein for a while.


And...I love the "legals" page. Not guaranteed to do ANYTHING. No
warranty on materials? So if you make it look pretty (workmanship) by
making it out of kleenex and spit, it has NO warranty? What DO you
guarantee...that you'll cash my check???


  #4  
Old July 14th 08, 12:24 AM posted to rec.aviation.homebuilt
denny
external usenet poster
 
Posts: 14
Default Generators that use Wind power.


Topic: WIND �POWERED �GENERATORS.



- Show quoted text -


I checked out the price of the wind powered generators. It
seemed to demonstrate my principle that "Only the wealthy can afford
free energy". What is the cost per kilowatt hour? Where can I see
one cranking out the kilowatts, day in, day out. Are energy storage
devices included for light wind days? I wonder if the windmill
builders of many years ago had the ability to build the large two or
three bladed composite blade wind turbines we see today, or were they
stuck with what they could build at the time.
I happen to own a 1/4 share in a farm in northern Iowa. I'm not
paying to put up a multiblade windmill; power companies are offering
to pay my familiy to put wind turbines on our property. Depending on
the circumstances, they might pay us more than the cost of one of the
wind powered generators just to put them up, plus a percentage of the
power sales. That said, I wonder who would win out (besides the
taxpayers) if all tax subsidies, tax breaks, etc. were taken away from
every company involved in energy production. Check out the physics
and the economics. He is right about solar water heating vs. solar
electricity, though. I thank the taxpayers for subsidizing my solar
water heater and pool heater when I lived in Arizona. Solar electric
panels would never have done the job.

Now can we get back to airplanes?

Denny
  #5  
Old July 16th 08, 01:33 AM posted to rec.aviation.homebuilt
Peter Dohm
external usenet poster
 
Posts: 1,754
Default Generators that use Wind power.

"denny" wrote in message
...

Topic: WIND ?POWERED ?GENERATORS.



- Show quoted text -


I checked out the price of the wind powered generators. It
seemed to demonstrate my principle that "Only the wealthy can afford
free energy". What is the cost per kilowatt hour? Where can I see
one cranking out the kilowatts, day in, day out. Are energy storage
devices included for light wind days? I wonder if the windmill
builders of many years ago had the ability to build the large two or
three bladed composite blade wind turbines we see today, or were they
stuck with what they could build at the time.
I happen to own a 1/4 share in a farm in northern Iowa. I'm not
paying to put up a multiblade windmill; power companies are offering
to pay my familiy to put wind turbines on our property. Depending on
the circumstances, they might pay us more than the cost of one of the
wind powered generators just to put them up, plus a percentage of the
power sales. That said, I wonder who would win out (besides the
taxpayers) if all tax subsidies, tax breaks, etc. were taken away from
every company involved in energy production. Check out the physics
and the economics. He is right about solar water heating vs. solar
electricity, though. I thank the taxpayers for subsidizing my solar
water heater and pool heater when I lived in Arizona. Solar electric
panels would never have done the job.

Now can we get back to airplanes?

Denny

Well, I guess so...

But thank you for a rare and refreshing look at the real economics of wind
power (which does a good and economical job of lifting water from below
ground to an above ground storage tank) and solar power (which does a great
job of auxilliary or suplemental heating). It reminded me of the "HHO"
hydrogen electrolysis systems for automobiles--which appear to cost about
200 dollars (if you assemble and install one yourself), waste a couple of
hundred dollars worth of gasolene over their lives, and supposedly qualify
for a $2000 tax credit because the generated hydrogen is an "alternative"
fuel.

Peter
(Grrrrr)



  #6  
Old July 17th 08, 02:36 AM posted to rec.aviation.homebuilt
clare at snyder dot ontario dot canada
external usenet poster
 
Posts: 56
Default Generators that use Wind power.

On Wed, 16 Jul 2008 07:01:50 -0700, Joe Brophy
wrote:

On Sun, 13 Jul 2008 00:44:12 -0700, "a" wrote:

I will be reading the comments in this newsgroup for the next few days and
learning from those that are positive and helpful.

I know that this is an out of topic posting to this newsgroup. That is a
reason that I am posting here. I want to learn from people that are not in
the business of cogenerating energy. I want to read in this newsgroup
valuable comments from a fresh perspective. By off topic posting to random
newsgroups, herein I may gain an honest response.

There are definition links for you to read. There is physics data, and NASA
data that is referenced. I would like your honest opinion. I would like to
read logical responses. Childish screaming about commercial posting or out
of topic posting to this newsgroup will not slow my quest to find logical
and valuable responses. Someone on this newsgroup will be able to think for
themselves and will give me an honest and logical response that I may learn
from and potentially use. I look forward to your opinion.

www.reasonablepower.com

Topic: WIND POWERED GENERATORS.

I would like to introduce you to a new wind powered generator company.

These are specifically for LOW wind speeds. These are affordable sized for
the average (non-city) U.S. homeowner.

This is a very small company. These are being built one at a time.

The page is at ReasonablePower.com

http://www.reasonablepower.com

Please take the time to look at the page.

If you have a valuable response whereby I may learn and do better as I build
this company, please post your response to this newsgroup. I will be reading
postings herein for a while.

Thank you.


Got a picture of your blades?



OK, I'll bite.
To a point you are right. HOWEVER.
An airfoil can turn faster than the wind passing it. This is due to
the lift. Three blade turbines are designed to turn slowly. They are
designed to do this so the tip speeds do not get too high. Due to
their size, tip speed is a definite factor. They make them BIG because
they are , as you stated, levers. The forces exerted at the end of a
long blade impart a LOT more torque than the forces neer the root. The
taperes blades distribute the torque load across the whole blade.
Blades with big paddles at the end put excessive loads on the blades,
as well as more drag. The blades need to have a twist in them so the
angle of attack of the blade is relatively even across the blade (they
have the same "bite" for the length of the blade)

The old farm windmill (most good ones) ALSO used an airfoil. Granted,
it was a single sided foil - convex on one side and concave on the
other. This also enabled the turbine to spin faster than the wind. The
"aermotor" designs were high speed low torque devices, and had a
gearbox on the turbine that reduced the speed and increased the torque
to operate the water pumps.They were, IIRC, about a 16:1 ratio (two
stages, 4:1 each). Most could also be "shifted" from long stroke to
short stroke. SHort stroke could pump water with less wind, but pumped
slower - and could also pump higher.(more mechanical advantage).

These devices have historically not worked well for generators.
There are reasons the large diameter 3 pladers are used extensively



** Posted from http://www.teranews.com **
 




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