... McDonnell Douglas published a numerical study in a VAWT conference in the late 70s that showed that the best ratio of blade length to diameter was 3:4. Dan...
Dear Windmill lovers! Doug Selsam making guitars- Now I am flabbergasted!! I can see it now....Tarantula Windmills Inc.!! I’ve enjoyed the Creativity...
Jerald Nelson
rutan6300@...
Jan 2, 2003 12:33 am
9498
Kirk: You read the patent !!, see the date and see what has been done since that date !!. There are too many, and I mean, too many patents that are assigned...
garciah
garciah@...
Jan 2, 2003 12:33 am
9499
1.The static electricity, per se, is modest energy and it will require a humongous equipment to collect and the efficiency is to poor, therefore no dice. 2.A...
I'm basically trying to build a small and simple wind generator for some low voltage outdoor area lights. I've found a web page that uses a GM car alternator,...
"But has anyone put an anemometer directly behind the propeller to see what the wind speed is? " Don't some of the large turbines have an anemometer cup unit...
To those interested in negative pitch questions: I tried unsuccessfully to post the other night on the question of negative pitch angles and the power that may...
Dear Jerald : Your well intentioned letter has prompted me to reply. I am also an aviator with over 13,000 flight hours. I was a Flight Engineer flying B727's...
Raul Verastegui
raulv@...
Jan 2, 2003 3:20 pm
9504
... I am sorry, Jerry but a good understanding of the aerodynamics of flight does not help so much as hinder your understanding of wind turbines. This happens...
Dear Alex, I have found these websites with info on Darrieus type turbines, hope they are of use. Regards Chug. http://windstuffnow.com/main/darrieus_type.htm ...
chug
chug@...
Jan 2, 2003 3:20 pm
9506
This should be easy to test. Try a length of wire suspended by insulators at perhaps 20 feet in the air. (Also known as an antenna.) Measure the open circuit...
Hi Alex, I am also interested in building a small wind generator. I'm still evaluating which type is the best for my purposes (200 W for heating water in my...
Alessandro Capobianco
alexacapob@...
Jan 2, 2003 6:14 pm
9508
I have put a vector diagram on this page http://www.scoraigwind.co.uk/wpNotes/negative.htm to illustrate how reducing the pitch angle will increase the angle...
Hi all, and a happy New Year! I hope Tom will allow the very small attached jpeg to pass moderation, if not sorry to have abused the system. I confess that I...
jim barr
wandana@...
Jan 2, 2003 6:15 pm
9510
... From: Hugh [mailto:yahoo@...] Sent: 02 January 2003 08:18 To: Jerald Nelson; awea-wind-home@yahoogroups.com Subject: Re: [a-w-h] negative...
jim barr
wandana@...
Jan 2, 2003 6:15 pm
9511
Well done Hugh, I feel drawings are always the best approach. Let's work on this vector diagram together if you can modify it. Would it be possible for you to...
Frank, Alvin Marks wasn't gathering atmospheric electricity. The spray is charged with a power supply and the wind adds work. Different kettle of fish. The...
Hi Bob Gayle, yYour letter was very interesting to me.. Would you by chance remember if there were NACA numbers for the cambered foils you worked with? In...
... From: stronghearted_1 <stronghearted_1@...> I'm basically trying to build a small and simple wind generator for some low voltage outdoor area lights....
Hi to all and I wish you the best for this beggining year, I am planning to get an Excel and to get it connected to the grid here in France but the problem is...
... Attachments are discarded automatically before they get to the moderation point, to protect the list from the spread of viruses. If you have a file to...
More blades, negative pitch, iron in coils ... http://oneota.net/~earthsourcepowr/sarenna.html Thank you Tom [Non-text portions of this message have been...
Alessandro Capobianco
alexacapob@...
Jan 2, 2003 10:28 pm
9518
Glad to hear from some pilots, and there's a whole bunch more opinions to add to the mix. From what I'm reading, I'm not sure if pilots and windmill people ...
... I have modified it. It is easier for me to use my site than the shared files with the password and everything. I hope this is OK. ... I have added them....
... In this case, the wind is more than 3 degrees off the bow. Unless you have a very fast boat! So hauling the sail in across the keel would make a very...
Re: [a-w-h] negative pitch ... From: Hugh [mailto:yahoo@...] Sent: 03 January 2003 08:55 To: jim barr; awea-wind-home@yahoogroups.com Subject:...
jim barr
wandana@...
Jan 3, 2003 2:53 pm
9522
Being new to this industry, I have found out that I need to change our local land use bylaw in order to install a SWT. Would anyone be able to send me a copy...
P Luft
pluft@...
Jan 3, 2003 2:53 pm
9523
The American Wind Energy Association has a model zoning ordinance for small wind system permitting available on-line at: ...
Mike Bergey
mbergey@...
Jan 3, 2003 4:06 pm
9524
Hi all. I am still confused about the benefits of negative pitch angle at high rpm range. As rpm gets high enough, angle of incidence gets smaller (ref. hugh's...
