I may have fallen off the thread here-- are we still talking about th h.o.g.?
I applaud the imagination of the h.o.g. developers. I'm sorry, they seem
doomed to failure. Too much mass and serious doubts about the effectiveness of
the design.
Ernie Rogers
In a message dated 11/24/04 5:58:14
> The hours of operation aren't even close. The comparison is invalid. <
Incorrect as our coaches are running 16 hours a day and the loads on
those turbine bears are nowhere near the loads on the drive shaft
bearings behind the 200 hp motor. Chris.
---
Outgoing mail is certified Virus Free
automatic positioning requires "controls"
be it a cam and a linkage or a motor and electronics.
It doesn't mean an operator is on duty.
Kirk
--- Martin K <[EMAIL PROTECTED]> wrote:
I don't think it has controls, I think they are
positioned
automatically. If this is not the case please
ite:
http://energytransfercorporation.com/
Sorry to be so wordy, just trying to make this as simple as possible.
Dave
- Original Message -
From: "Martin K" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, November 22, 2004 5:04 PM
Subject: Re: [Biofuel]
automatic positioning requires "controls"
be it a cam and a linkage or a motor and electronics.
It doesn't mean an operator is on duty.
Kirk
--- Martin K <[EMAIL PROTECTED]> wrote:
> I don't think it has controls, I think they are
> positioned
> automatically. If this is not the case please
again, it
depends on material costs.
Dave
- Original Message -
From: "Chris Lloyd" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, November 22, 2004 1:59 AM
Subject: RE: [Biofuel] Vertical axis wind turbines Another approach to wind
Elegance of des
automatically. If this is not the case please let me know.
Kirk McLoren wrote:
The hours of operation aren't even close. The
comparison is invalid.
Then there is the question of which bearings you refer
to. Wheel bearings? Totally different application from
moving the foils.
The applied
The hours of operation aren't even close. The
comparison is invalid.
Then there is the question of which bearings you refer
to. Wheel bearings? Totally different application from
moving the foils.
The applied loads in that machine are very large. That
makes the controls large which means expe
> Elegance of design means simple. I would like to see a
tally of wear points for this design plus fab costs. I
doubt it will pencil. <
If the sealed grease bearings on my truck can be made to last 10 years I
see no problem if it's built well enough. There is no reason these days
to have short be
ormation will be limited to what they have been
> > able to learn with other
> > models they have built to this point.
> >
> > Happy Thanksgiving to all who celebrate it and
> enjoy
> > this time with your
> > families.
> >
> >
> > -
Kirk McLoren wrote:
From the description:
Bearing little resemblance to the older prop type
models, the H.O.G. is 61 feet in diameter, weighing
30,000 pounds and approximately 26 feet high.
Not only huge but complex. I went to a drag design
only because I have a stupidly simple idea of how t
brate it and enjoy
> this time with your
> families.
>
>
> - Original Message -
> From: "Kirk McLoren" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, November 20, 2004 10:35 PM
> Subject: Re: [Biofuel] Vertical axis wind turbines
point.
Happy Thanksgiving to all who celebrate it and enjoy this time with your
families.
- Original Message -
From: "Kirk McLoren" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, November 20, 2004 10:35 PM
Subject: Re: [Biofuel] Vertical axis wind turb
Not Swedish. Bohemian Celt actually.
Was madly infatuated with a little Norwegian girl when
we were in the 8th grade though. She told me ufda was
being at the airport when your ship comes in.
As to your other question --
Fatigue stress is much higher in a VAWT than a HAWT.
Inescapable.
To quote
Kirk,
There's nothing wrong with vertical-axis wind turbines (VAWTs), in principle.
All turbines deal with "turbulent" loads more or less. The problem is with
business attitudes-- companies dropped the VAWTs when they were not looking
competitive, and now few people are willing to go back an
All the VAT I know about suffered fatigue and broke
due to reversal every revolution. It is a design
weakness. All you can do is select materials etc to
extend mtbf but it is built in.
I used to be enthusiastic about them as I wanted to
avoid the problems in the conventional designs.
They aren't
another approach to wind
Vertical-axis turbines may avoid the limitations of
today's standard propeller-like machines.
by Steven Peaceby
Jun 2004
http://www.memagazine.org/backissues/jun04/features/apptowind/apptowind.html
The image of modern wind turbines has finally crept into the
p
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