Years ago, I read, probably in this group that there IS a ratio of turbine rotor area and wind tunnel area at which the restriction effect is acceptable. That...
... Having used parallel battery strings in my own system and observed many neighbours using parallel strings over a thirty year period, I have never known or...
No, thankfully bats do not use radar. They use sonar in the ultrasonic frequency range, and you are correct that it might well be possible to use ultrasonic...
... Agreed. But all the battery failures I have seen since I've been in the business are rather limp and pathetic failures, not wild exciting exothermic ones...
... Exactly, but yes, best clarified for the folks in the cheap seats ;-). Bats, whales, etc. ... Remember though, on that topic, the US Navy's testing a few...
I will say it again, it is much easier to move the turbine than to move the atmoshere, and much closer to reality. When most people want to know how much...
One interesting thing about this situation is that birds (at least) also run into cell towers at a greater rate than wind turbines. Several ornithologists have...
Tom, The sole advantage of VAWTs are that they are omnidirectional--they can accept the wind from any direction. That's it. The windspire's advantages are...
Who ever you are, sorry, you lost me! What am I supposed to be looking at? Jim Barr http://homepage.ntlworld.com/wandana/ Best is the enemy of good enough ...
... In well designed systems, of course not. All it takes is a fuse or diode to prevent this from happening. You don't hear of failures, because well...
Just going by my experience, which is 28 years living with a 14' dia, relatively high speed, wind generator on a 110' tower 120' from my passive solar (south...
Hi I sort of disagree with Hugh, although I know better. I had fire from 4 parallel strings of flooded batteries. The factory battery man involved said it was...
Heck, I hate to be in the same spot that DOUG is but here it is. We used a truck to do the testing of prototypes to have an accurate determination of their...
Nando
nando37@...
Jul 3, 2007 1:38 pm
21709
http://www.earthsky.org/radioshows/51321/harnessing-high-altitude-winds-for- energy Harnessing High Altitude Winds for Energy Some scientists believe that all...
Richard Averett
averettr@...
Jul 3, 2007 1:38 pm
21710
NANDO i AM CONTINUALLY AMAZED AT YOUR DEPTH OF KNOWLEDGE AND NUMBER OF ACCOMPLISHMENTS IN WIND ENERGY, EVEN IF IT SOMETIMES PLACES YOU, HOWEVER MOMENTARILY, IN...
I have been trying to find a low cost way to pump the water from my lake just to water the half acre yard. Anyone have any suggestions that will not use...
... Maybe it's just that, at the end of the day, I deal with nuts and bolts that I can see this clearly. The friggin' power transmission wire man, the wire!...
... Sorry, I have personally seen the CAPS blow off and also seen pictures of the entire case blowing apart. I still stand by my original post, that parallel...
It is not "a rare but entirely possible failure"...In fact, it is more probable that an astroid is going to hit your house.... It is simply not going to blow...
Doug: Do not shout, do not exaggerate, Stop your Rhetoric, I was a part of a group, though I was the one that demonstrated that the Torque Pitch controller was...
Nando
nando37@...
Jul 3, 2007 2:52 pm
21716
U-Bet, DJ. It's really amazing that otherwise seemingly intelligent people can't seem to grasp the limitations of conductive materials, not to mention the...
Hey Jim, I suspect that they were referring to a poster on the second page of the website that shows a bunch of WT's next to a high voltage transmission line. ...
This ceiling of my van is spattered with acid holes from an exploding battery from when i tried to torture test a firefly to burn it out - could not burn out...
Seems I've been replying directly to Jim. My intent was to post to the group. I'm used to group mail replies going to the group as default rather than the...
Further advantages include the ability to "feel" out the charactistics of the turbine, especially with regard to thrust force and the optimum number of blades,...
Best TURBINE model for energy extraction is that of the Jet engines. not the compressor blades, but the usual 3 stage turbine blades which absorb part of the...
... A bucket? Sorry to be trite, but that's about it. From non-moving water to an elevated destination? Myself, when clients want that, they end up with some...
Hi, I'm Alberto the mexican guy who is building a wind turbine for his tesis. I've been searching and I realized that S822 airfoil is very recomended for small...
