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Paul Dvorak
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  • Strongsville, OH
  • United States
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Latest Activity

November 9, 2009
November 8, 2009
Mr. Querfeld: Can you tell us how the FPS sensor measures viscosity, density, and dielectric constant?
November 2, 2009
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…
October 23, 2009
October 21, 2009
Paul Dvorak and Paul Hofmeyer are now friends
October 21, 2009
October 21, 2009
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…
October 21, 2009
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…
October 14, 2009
Paul Dvorak and Taylor Johnson are now friends
September 29, 2009
Hey Phil: Thanks for the explanation and insight, the very discouraging insight. Are the figures for solar power any more encouraging? Paul
September 2, 2009
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…
September 2, 2009
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…
September 2, 2009
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…
August 26, 2009
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…
August 26, 2009
Paul Dvorak added a blog post
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…
August 10, 2009

Profile Information

Company
WTWH Media LLC
Job Title
Senior Online Editor
Industry
Windpower
Company Website
http://windpowerengineering.com
I'm Looking For:
Peer Feedback
Personal Interests
Bicycling, golf, gardening, reading, travel

Paul Dvorak's Blog

Paul Dvorak

Phil's windmill page

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

Posted on August 10, 2009 at 4:27pm — 2 Comments

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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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