Windmill with rotational sails *Lahor

	Duration: 03:32 minutes Upload Time: 07-01-12 05:08:11 User: jatubacro :::: Favorites
Description: This is a new invention. This windmill starts making electricity from windspeed of 2m/s. Its sails contract and expand as the wind speed changes.
Comments
jaigalada ::: Favorites Have you tried this with a triangular sail. you might get some lift and a better tip speed ratio. You might have to change how your micro processor controls the sails for highest performance in that case. Please let me know what you think about that. 07-07-17 05:41:21 _____________________________________________________
digiman97 ::: Favorites is that the Haarp thinghy 07-07-16 15:49:49 _____________________________________________________
jatubacro ::: Favorites Each sail has a differential with 2:1 ratio which is connected to the main differential of 1:1 ratio. Main differential is connected to (i dont know the exact word)---> wind director 07-07-03 03:43:45 _____________________________________________________
sciencejunk ::: Favorites A fascinating machine! It looks as if you change the pitch of the sales cyclically under control of the top vane. How did you decide on the range of pitch variation, and does this range vary dynamically with wind speed? 07-06-30 08:00:41 _____________________________________________________
jatubacro ::: Favorites I have sent a video response with some details. Please wait till it gets processed 07-03-20 05:20:05 _____________________________________________________
lividmany ::: Favorites Show us more...take some more shots of the transmission, controller and hookups and details of the unfurl mechanism please. Very interesting contraption. 07-03-09 18:11:32 _____________________________________________________
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menemenetekelpharsin ::: Favorites Thanks. 07-03-08 03:42:02 _____________________________________________________
jatubacro ::: Favorites Strong winds are not common in Pannonian Valley, Croatia so this has never happened. Maximum RPM measured counts to 15 but torque I have not measured as I do not have appropriate measuring instruments 07-02-20 03:44:28 _____________________________________________________
jatubacro ::: Favorites Control unit(microprocessor type) controls sails either manually or automatically. When energy is not needed or when windmill needs some attention, unit is switched to manual control and the sails are contracted. On automatic control the sails expand when RPM is less then 5 and contract when more than 9RPM. In case of control unit failure, strong wind would tear the sails but the construction would remain intact. 07-02-20 03:43:38 _____________________________________________________
menemenetekelpharsin ::: Favorites What's the highest or maximum RPM readings taken? Lowest? Torque readings? 07-02-17 08:24:01 _____________________________________________________