Just found an item about a wind turbine that doesn't have a gearbox to
waste energy and runs at 2 - 45 mph. One of my dislike about these
contraptions is the amount of gubbins to run before anything useful comes
out. This one is pretty well a wind-driven electric motor:

http://www.earthtronics.com/honeywell.aspx
--
Peter.
The head of a pin will hold more angels if
it's been flattened with an angel-grinder.

In article ,
PeterC wrote:
Just found an item about a wind turbine that doesn't have a gearbox to
waste energy and runs at 2 - 45 mph.

How can a turbine run at MPH?

One of my dislike about these contraptions is the amount of gubbins to
run before anything useful comes out.

None produce useful amounts of energy without decent wind...

This one is pretty well a wind-driven electric motor:

A motor converts energy into motion of some sort. Have you thought this
one through?

--
*Where there's a will, I want to be in it.

Dave Plowman London SW
To e-mail, change noise into sound.

On Mon, 8 Jun 2009 18:15:28 +0100, PeterC
wrote:

Just found an item about a wind turbine that doesn't have a gearbox to
waste energy and runs at 2 - 45 mph. One of my dislike about these
contraptions is the amount of gubbins to run before anything useful comes
out. This one is pretty well a wind-driven electric motor:

http://www.earthtronics.com/honeywell.aspx

More complete ecobollox actually. At 10MPH wind speed (Gentle Breeze
Leaves and small twigs in constant motion; wind extends light flag.)
it generates a magnificent 100W. Its power curve isn't much different
from other of these daft windmills. Admittedly it generates about
10W at 5MPH when most others are sitting idle but that won't even turn
the inverter on.

In most urban environments it will probably match the performance
found in the Warwick trials

http://www.warwickwindtrials.org.uk/resources/Warwick+Wind+Trials+Final+Report+.pdf

"The average energy generated per turbine per day across the sample
set has been 214 Wh...This is equivalent to an average of 78 kWh of
energy produced per site per year and an average capacity factor of
0.85%."

"Of particular note is that turbines on our high rise sites, ... were
able generate as much energy in one month as other turbines in the
trial did in one year. It is unfortunate that these high performing
turbines had to remain switched off for the majority of the trial
following complaints about noise from the building residents."

"The poorest site generated an average of 41Wh per day when in
operation or 15 kWh per year, which is less than the energy it
consumed to run the turbine’s electronics"

"Dave Plowman (News)" wrote in message
...
In article ,
PeterC wrote:
Just found an item about a wind turbine that doesn't have a gearbox to
waste energy and runs at 2 - 45 mph.

How can a turbine run at MPH?

One of my dislike about these contraptions is the amount of gubbins to
run before anything useful comes out.

None produce useful amounts of energy without decent wind...

This one is pretty well a wind-driven electric motor:

A motor converts energy into motion of some sort. Have you thought this
one through?

You'd better mention that to the engineers at Dinorwig
http://www.fhc.co.uk/dinorwig.htm

--
Graham.

%Profound_observation%

On Mon, 08 Jun 2009 18:52:41 +0100, Dave Plowman (News) wrote:
In article ,
PeterC wrote:
Just found an item about a wind turbine that doesn't have a gearbox to
waste energy and runs at 2 - 45 mph.

How can a turbine run at MPH?

wind speed, presumably

One of my dislike about these contraptions is the amount of gubbins to
run before anything useful comes out.

None produce useful amounts of energy without decent wind...

This one is pretty well a wind-driven electric motor:

A motor converts energy into motion of some sort. Have you thought this
one through?

In article ,
Graham. wrote:
This one is pretty well a wind-driven electric motor:

A motor converts energy into motion of some sort. Have you thought this
one through?

You'd better mention that to the engineers at Dinorwig
http://www.fhc.co.uk/dinorwig.htm

Oh, a motor can become a generator. But then it's not a motor anymore.
Until the next time. And one of those is unlikely to be state of the art
efficiency wise.

--
*When cheese gets its picture taken, what does it say? *

Dave Plowman London SW
To e-mail, change noise into sound.

In article ,
pete wrote:
Just found an item about a wind turbine that doesn't have a gearbox to
waste energy and runs at 2 - 45 mph.

How can a turbine run at MPH?

wind speed, presumably

Ah. Right. I thought it would be running around trying to find the best
wind...

--
*Succeed, in spite of management *

Dave Plowman London SW
To e-mail, change noise into sound.

"Peter Parry" wrote in message
...
On Mon, 8 Jun 2009 18:15:28 +0100, PeterC
wrote:

Just found an item about a wind turbine that doesn't have a gearbox to
waste energy and runs at 2 - 45 mph. One of my dislike about these
contraptions is the amount of gubbins to run before anything useful comes
out. This one is pretty well a wind-driven electric motor:

http://www.earthtronics.com/honeywell.aspx

More complete ecobollox actually. At 10MPH wind speed (Gentle Breeze
Leaves and small twigs in constant motion; wind extends light flag.)
it generates a magnificent 100W. Its power curve isn't much different
from other of these daft windmills. Admittedly it generates about
10W at 5MPH when most others are sitting idle but that won't even turn
the inverter on.

In most urban environments it will probably match the performance
found in the Warwick trials

http://www.warwickwindtrials.org.uk/resources/Warwick+Wind+Trials+Final+Report+.pdf

"The average energy generated per turbine per day across the sample
set has been 214 Wh...This is equivalent to an average of 78 kWh of
energy produced per site per year and an average capacity factor of
0.85%."

"Of particular note is that turbines on our high rise sites, ... were
able generate as much energy in one month as other turbines in the
trial did in one year. It is unfortunate that these high performing
turbines had to remain switched off for the majority of the trial
following complaints about noise from the building residents."

"The poorest site generated an average of 41Wh per day when in
operation or 15 kWh per year, which is less than the energy it
consumed to run the turbine's electronics"

I always wonder with these things, particularly when there's a field full of
them, whether that old phrase "you don't get owt for nowt" applies, and
'stealing' that bit of power from the wind causes any knock-on problems down
the line. Sort of 'butterfly effect' if you like. Wouldn't it be something,
if some bright spark worked out that by the green mist brigade saving the
planet and generating a few MW of electrical energy here, they caused
devastating floods in India ... d;~}

Arfa

Arfa Daily wrote:


I always wonder with these things, particularly when there's a field
full of them, whether that old phrase "you don't get owt for nowt"
applies, and 'stealing' that bit of power from the wind causes any
knock-on problems down the line. Sort of 'butterfly effect' if you
like. Wouldn't it be something, if some bright spark worked out that
by the green mist brigade saving the planet and generating a few MW
of electrical energy here, they caused devastating floods in India
... d;~}

That would be funny :-)

I was in a comedy club recently & one guy did a set about wind farms.

He claimed to have found the source of 'the wind' - it was a field full of
big 'fans' in Cornwall. He noticed that the faster the fans spun, the
windier it became :-)

He did wonder how big the electricity bill would be to run all those big
fans.


--
Dave - The Medway Handyman
www.medwayhandyman.co.uk

"The Medway Handyman" wrote in message
m...
Arfa Daily wrote:


I always wonder with these things, particularly when there's a field
full of them, whether that old phrase "you don't get owt for nowt"
applies, and 'stealing' that bit of power from the wind causes any
knock-on problems down the line. Sort of 'butterfly effect' if you
like. Wouldn't it be something, if some bright spark worked out that
by the green mist brigade saving the planet and generating a few MW
of electrical energy here, they caused devastating floods in India
... d;~}

That would be funny :-)

I was in a comedy club recently & one guy did a set about wind farms.

He claimed to have found the source of 'the wind' - it was a field full of
big 'fans' in Cornwall. He noticed that the faster the fans spun, the
windier it became :-)

He did wonder how big the electricity bill would be to run all those big
fans.


--
Dave - The Medway Handyman
www.medwayhandyman.co.uk



LOL ! That's a cracker ... :-))

Arfa

On Tue, 09 Jun 2009 07:41:18 +0000, The Medway Handyman wrote:
He claimed to have found the source of 'the wind'

All comes from cow farts, doesn't it?