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Paul Dvorak
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Mr. Querfeld:
Can you tell us how the FPS sensor measures viscosity, density, and dielectric constant?
Dear Ivan:
I did a quick search on wind in Italy and found:
http://www.contractjournal.com/jobs/job/senior-sales-engineer-urgently-required-wind-industry-italy-italy-200583036.htm
The company is looking for a sales engineer and that may give you a…
Dear Mr. Dolby:
I have few details on the market for thermal spray. As I recall, it's a hard thin coating for gears. The one other supplier of the coatings mentioned that most of their business comes from gear repairs because they also rebuild gear…
Mr. Kalkert:
From my limited experience, getting power onto the grid is most difficult and according to one source in an upcoming story, it's getting worse. Grid owners are a separate group of investors.
After that, reliability is a constant worry…
Hey Phil:
Thanks for the explanation and insight, the very discouraging insight.
Are the figures for solar power any more encouraging?
Paul
Nice work, Tyler.
We don't see enough accounting math of this sort. By listing the costs and charges, a wind farm owner, or other business person, knows what costs to minimizes and the figures to work on growing.
You also begin to appreciate an ac…
The typical urban windmill is sold to reduce your dependance on the utility grid. These windmills are advertized as producing 1 KW in a 30 MPH wind.
A typical 1 KW PMA (permanent magnet alternator) will loose 50% of its produced power as heat in it…
As a former Air Force weather observer (8th Weather Wing 1967-1968) I used to wonder how we might affect the weather being creatures that live at the bottom of a sea of air. The atmosphere is so vast and sun so powerful, the puny amounts of energy e…
Jeff:
My cloudy crystal ball tells me two thing are likely to happen. For one, the turbines will continue getting larger because the economy of scale means more power from single units. Of course, there are limits, and they will be periodically bro…
Hey Phil:
How about a little more electrical explanation for us mechanical engineers? For instance, call out the items in the circuit diagram and tell what they do. The PMA is axial flux dual-rotor design. So.. output is variable dc? What does the…
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Hey Phil:
How about a little more electrical explanation for us mechanical engineers? For instance, call out the items in the circuit diagram and tell what they do. The PMA is axial flux dual-rotor design. So.. output is variable dc? What does the rectifier do? How does the inverter work? In your proverbial spare time, of course.
Thank,
Paul
How about a little more electrical explanation for us mechanical engineers? For instance, call out the items in the circuit diagram and tell what they do. The PMA is axial flux dual-rotor design. So.. output is variable dc? What does the rectifier do? How does the inverter work? In your proverbial spare time, of course.
Thank,
Paul
Posted on August 10, 2009 at 4:27pm — 2 Comments
Comment Wall (1 comment)
- At 7:56pm on November 9, 2009,
Frederico Nunes M. de Carvalho said…
- thank you for the help. I will try to contact them. But I'm pretty sure about teh potential of the wind here.
Fred
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