Hoagy,
With best efficiency numbers, at swept area 0.3 square meter Wind speed m/s Power Watt 5 6.5 10 52 15 175 20 415 25 811 30 1402 at swept area 0.5 square meter Wind speed m/s Power Watt 5 11 10 86 15 292 20 692 25 1352 30 2336 Darrieus best efficiency 0.35 Generator best efficiency 0.85 Mechanical best efficiency 0.95 This means that my suggestion is well within boundaries for a viable design and good margins for lower efficiencies based on the small size. With the correction of the Savonius efficiency, it will also fit in the design concept. Hakan At 08:18 11/01/2004, you wrote: > > you wrote: > > Hoagy, > > > > Yes, with the swept area the around 150 Watt VW-turbine works. > > >Hakan, >Can you do the arithmetic using the formulation from this site, >"How Can I Calculate the Amount of Power Available at a Given Wind Speed?" ><http://www.awea.org/faq/windpower.html>http://www.awea.org/faq/windpower.html >Thanks Hakan. > > > > I have a > > parallel discussion on the wind list and it is more about my suggestion on > > using vertical axis wind turbine. They have a ruling membership that are > > against this type of turbines. This is a posting on this subject, but it > > also describes the background for my suggestion. > > >Biofuel at Journey to Forever: ><http://journeytoforever.org/biofuel.html>http://journeytoforever.org/biofuel.html > >Biofuels list archives: ><http://archive.nnytech.net/index.php?list=biofuel>http://archive.nnytech.net/index.php?list=biofuel > >Please do NOT send Unsubscribe messages to the list address. >To unsubscribe, send an email to: >[EMAIL PROTECTED] > > > >---------- >Yahoo! Groups Links > * To visit your group on the web, go to: > * > <http://groups.yahoo.com/group/biofuel/>http://groups.yahoo.com/group/biofuel/ > * > * To unsubscribe from this group, send an email to: > * > <mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED] > > * > * Your use of Yahoo! Groups is subject to the > <http://docs.yahoo.com/info/terms/>Yahoo! Terms of Service. Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/index.php?list=biofuel Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
