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wind power- any comments on this statement - Page 9

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Posted by Michael B on December 17, 2009, 2:30 am
 


Yeah, theyre going to try them at $,500.



Posted by Steve Ackman on December 22, 2009, 6:53 pm
 


19:42:19 -0500, Curbie, jim.richards65@yahoo.com wrote:


     "The Honeywell Wind Turbine comes complete with a computerized
     smart box, inverter and inter connect switch to wire the system
     into a household panel. The Honeywell Wind Turbine is designed
     to be installed where the power is being consumed and can
     produce 2000 kWh/yr in class 3, 2752 kWh/yr in class 4 winds at
     33' (height of 33'). The system has a MSRP of $,995."

--
☯☯

Posted by Curbie on December 17, 2009, 12:28 am
 

Michael,

I follow and like your logic (with a caveat) right up to the last
sentence "No problems with overspeed, it won't be going faster than
the wind.", somewhere on the link you posted had a caution about
magnetic-levitation "crash"  basically when turbine loads exceed
magnetic-lift.

I'm thinking they're referring to the occasional high winds,
horizontal machines deal by furling and since we are talking about the
weather here, high-winds should be accounted for.

The caveat on a home-scale is design is there is a lot "tried & true"
horizontal machine plans and information around, but you seem to be in
the same boat as me (algae/methane) for this mag-lev machine, in that
you're going to have to experiment on the cheap to get data.

If you can get the data you need through cheap experimentation, you're
just trading time for knowledge, for me anyway, that is a good trade.

Curbie



Posted by Michael B on December 17, 2009, 2:39 am
 

Gee, I haven't seen that as a problem.
Simple voltage sensing with an "and" gate,
set to apply a strap-type brake to the base,
when the wind speed/voltage level gets high
enough to cause concern.

The Pontiac Firebird wheel/brake assembly
is at the base, but I've seen the Volvo hubs
used for similar stuff.



Posted by Curbie on December 17, 2009, 8:03 am
 

Ok, I wasn't referring to an over-power situation, but wind loads on a
high-drag machine that can't be furled out the wind. If you've run the
math on loading, and the extra (structural support) weight to
compensate for occasional high-wind loading does affect normal
low-wind output, then the math is hard to ignore.

Curbie



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