Blade Calculator 2006
By Michael, Section Wind Posted on Mon Jan 09, 2006 at 07:23:00 AM MST
Free Software for designing a wind turbine blade set

Warlock Engineering's Free Blade software has been updated, it now has imperial units and online help Download it for free from http://warlock.com.au/bladecalc-abstract.htm

Blade Calculator 2006 | 3 comments (3 topical)

Re: Blade Calculator 2006 (3.00 / 0) (#1) by willib on Mon Jan 09, 2006 at 10:23:03 PM MST

i downloaded it thanks for the heads up. and i'm used to working in  feet and inches so thats good for me. Carpe Ventum (seize the wind)

Re: Blade Calculator 2006 (3.00 / 0) (#2) by olvvlo on Tue Jan 10, 2006 at 10:57:39 AM MST

I also prefer feet and inches however I am not sure about the generator power in watts.  The results seem to be extremely high or that is in comparison to other programs. I have tried at least three other programs of which the cord and angle etc seem to be similar, but when it comes to watts output they all very wildly.  Is there a reason for this?

Re: Blade Calculator 2006 (3.00 / 0) (#3) by Michael on Tue Jan 10, 2006 at 06:01:13 PM MST

hi, The power output is the mechanical power driving your generator, if your generator is only 60% efficient you need to multiply the power by 0.6 The blade efficiency is a important factor to get right. The 1.8m turbine had a measured efficiency of 0.3 when the blades were operating at a TSR of 10. realistic value would be 0.25, see the measured TSR vs efficiency curve on the 1.8m turbine results. http://www.warlock.com.au/2kwbladesandgenerator-abstract.htm to get the program to include the generator losses in its calculation, combine the generator efficiency with the blade efficiency. eg. for a 60% efficient generator and 25% efficient blades, The total efficency of your turbine is 0.15 (calculated by 0.6 x 0.25) this value can be used for the input value for blade efficiency Hope that helps, Michael. [ Parent ]

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· http://war lock.com.au/bladecalc-abstract.htm · Also by Michael