John, I think the 1 hz sampling rate is fine. I don't see any value in shorter periods. We like to see 1-minute and 10-minute averages of the data to compare...
Thank you all, for sharing your valuable experience. I hope one day I will have also some experience to share. Now I can only say that I am willing to. Regards...
John, If you did some recent research to come up with that USB data logger, there are probably quite a few of us that would be interested in your analysis of...
Just posted! A new wind rotor on www.integener.com. Used no vehicle but a sturdy 15' tower for its development. Many photos showing the Ametek style gen on it...
John, I'll try to help as best I can. ;) ... Where is your anemometer relative to the turbine? They are probably not exactly correlated unless you average...
Doug, I cannot be quiet any longer. ;) ... That statement is NOT true if you follow through what the test is doing. Give me a little wiggle room in my...
Andy, If I ever make the drive from Dallas to 'Vegas again, you can bet I'll stop by. It was fascinating 10 years ago to see your manufacturing and test flow,...
I was explaining my conundrum the other day - a world ready to have wars over energy, talk of a resurgence of nuke plants, global warming CO2 concerns, all...
Well fair enough Hugh although the gen can get hot just as easily on a car as anywhere else if it is working hard. But to say "This is not a power curve" -...
Let me also say Hugh Thank You Thank You Thank You for teaching me and so many other people how to easily understand and make our own 3-phase generators,...
Hello John: Well one thing I have definitely picked up on is that longer averaging periods bring your power curve to the left and make it appear that your...
... Sorry but you miss my point. In 15 minutes costing $2 for gas I would not expect the temperature to stabilise. I have known an alternator that could...
At 2:33 pm -0700 27/8/07, Doug Selsam wrote: once you have it down with good equipment you can take an accurate power curve in literally 5 - 7 minutes Yeah,...
Hi, I need to measure and record the wind data in a house in europe to determine if a wind generator is feasable. I would likeit to be battery operated and...
... It just makes more sense to me to measure the actual output under real world conditions when the machine has reached it operating temperature and is...
Working reconstruction of Peregrinus’s Wheel having cross-like stator 1 min 10 sec - Aug 30, 2007 Description: Designed by Petrus of Maricourt, wheel of...
doug, why don't you take this up with the IEC and the standard for small wind turbines. i think you're too late but the wheels of standards move slowly--heck...
Actually you missed a third point - doesn't make any difference what the wages are, or location, how good is the neighborhood you can afford is - such as...
C & L Olson
nlight@...
Sep 4, 2007 2:26 pm
22155
Peregrinuses Wheel spinning with combined stator. 1 min 4 sec - Aug 31, 2007 Description: Wheel of continuous motion designed by Petrus of Maricourt already...
Dear Paul Here is my point: Once again Hugh has cited the fact that alternators can overheat during hours on a tower more than 15 minutes on a truck... Once...
HI John, Thsi is interesting. I believe there is a lot of value in doing tests in real world conditions. But it must be a little difficult to place the...
I have to agreewith Doug on this one: We need to keep it simple or else end up endlessly splitting hairs and losing the public.... A simple measurement of...
Anthony, This isn't a mystery, it's a phenomenon called "phase velocity". Unless you were driving in the exact same direction as the cloud was moving, the...
I have a question about electric meters. can they be tested for accuracy? Our utility installed a new on last march, and our use has nearly doubled every month...
montyb
montyb@...
Sep 5, 2007 3:07 pm
22161
That is the way it needs to be done. I believe doug does it that way, too. ... From: "mmk_tsm" <mmk_tsm@...> To: "Donald Plisco" <dplisco@...> ...
Doug, I hope my prior messages are more than adequate, ... Well, then, since they match so well, why do you complain about the shift from the longer term (1...
Hi everyone With my truck testing I have problems getting good accurcy at lower speeds. and there is the unpredicitability of startup. It is very different...
Mr. Jones, you seem to lack interest in the MicroRotator Model 07 in comparison to clouds and so you risk my pursuing the subject off-line by your having...
