Honeywell Turbine

[bj]

   Would have put this somewhere else, but couldn't quite decide.  Some of you will remember this turbine from posts a while
back.  Well apparently it is going into production, and in Canada.  Well, jobs are good right?
    Sorry, I couldn't get the link to post as one. (still learning), but this is the site.
    No expert, but it seems like all Betz are off on this one.
http://www.windtronics.com/
    Interesting read, sort of like the Dunes trilogy.

[dnix71]

The design is genius. But they never mention the output curve.

According to Windtronics, the turbine they sell will provide 15-20% of the average household energy use [DOE].

According to the DOE http://www.oe.energy.gov/information_center/faq.htm#sys4  920KWH a month is 'average.' 15% of that is 138 kwh/month or 4.6 kwh/day.

4600 watt-hours/day x day/24 hours = 192.7 watts continuous output average.

From here:  http://www.otherpower.com/windbasics1.html

6 foot diameter is 1.83 meters, making the swept area 2.63 square meters. A 10 mph wind is 4.47 meters/sec

swept area x air density[1.23kg/m2 at sea level]  x [wind speed]2 x maybe 30% efficiency gives 19.4 watts at 10mph, 77.6 watts at 20 mph, 174.6 at 30 mph.

It would take a steady 32mph wind at sea level 24/7/365 to generate 15% of your electrical needs with this turbine.

I say liar liar pants on fire.

[ghurd]

The design is genius.

The marketing is genius.

"The Blade Tip Power System cuts-in with wind speeds as low as 0.5 (1/2) MPH (.8km/h),"
"maximizes efficiency drawing energy from the fast moving blade tips rather than a complex slow center hub."

Never screw up good marketing with facts.   
G-

[Beaufort]

The design is genius. But they never mention the output curve.

According to Windtronics, the turbine they sell will provide 15-20% of the average household energy use [DOE].

According to the DOE http://www.oe.energy.gov/information_center/faq.htm#sys4  920KWH a month is 'average.' 15% of that is 138 kwh/month or 4.6 kwh/day.

4600 watt-hours/day x day/24 hours = 192.7 watts continuous output average.

From here:  http://www.otherpower.com/windbasics1.html

6 foot diameter is 1.83 meters, making the swept area 2.63 square meters. A 10 mph wind is 4.47 meters/sec

swept area x air density[1.23kg/m2 at sea level]  x [wind speed]2 x maybe 30% efficiency gives 19.4 watts at 10mph, 77.6 watts at 20 mph, 174.6 at 30 mph.

It would take a steady 32mph wind at sea level 24/7/365 to generate 15% of your electrical needs with this turbine.

I say liar liar pants on fire.


/quote]

Nice workup on the numbers.  There is so much dishonesty out there...someone needs to do this with all of them

[wpowokal]

Auto directional gets me I'm for ordering several, them maybe not. output curve.http://www.windtronics.com/pdf2/Energy-Output-Curve-11-1-2010.pdf

allan

[tanner0441]

Hi

Why do turbine manufacturers continue to list start up speed. It doesn't matter if it starts up at half a mile an hour, if the cut in speed is 10 or more MPH.

Also most domestic roofs are designed for vertical loadings, not the lateral forces imposed by a big multi blade wind turbine.

I would want to see recorded figures over at least a full year from several sites before it caught my real interest....

Brian