https://www.wiwo.de/technologie/green/marke-eigenbau-tueftler-entwickelt-windturbine-fuer-22-euro/13549092.htmlhttps://www.youtube.com/watch?v=t9TrUPoevXI $30 DIY Kilowatt Wind Turbine
This is the up to date build process for the OpenSource LowTech.org $30 Lenz2 vertical axis wind turbine.
The turbine can be made almost entirely from recycled materials with basic tools in six hours for $20-35.
It is tested at 35-40% mechanically efficient, generates
130 watts mechanical in a 30 km/h wind, 1 kilowatt at 60 km/h, and can survive 100 km/h gusts.
and an appropriate 750 RPM electric generator :
http://www.schillergy.com/pdf/schiller-energy.pdfwhen 3000 RPM version weights ,active/passive material calculation, 2 Kg/KW
a "750 RPM 1 KW " version weights -linear estimation - 2 Kg = 3000 RPM
ergo 4 Kg/1500 RPM ergo 8 Kg/750 RPM
8 Kg a 32 US$ ( reference alibaba PM motor/generator US$/Kg material) ~ 250 US$
means : 250 US$ + 30 US$ windturbine = 280 US$ total
https://overunity.com/18143/colors-kapanadze-forum-fe-builds-circuits-and-comments/2340/ #2347 / # 2350 (pseudo-) superconductive coil
a. Ed Sines concept(US Navy R&D) b. Haldar Sabyasachi c. Topchiashvili et al.
each kind with +- 5x reduced costs, weights and sizes claims
Experiment/R&D : 8 Kg generator to 1,6 Kg generator - by same costs -
1,6 Kg x 32 US$/Kg = 51,2 US$ per KW 750 RPM HTS coil generator
51,2 US$ generator + 30 US$ turbine = 81,2 US$
nominal 1 KW windturbine system
the above given numbers :
130 watts mechanical in a 30 km/h wind, 1 kilowatt at 60 km/h
per hours speed to per second speed
130 watts 8,33 m/sec , 1 kilowatt at 16,66 m/sec
compared thread #5 numbers,electricExample: A wind turbine with a nominal 400 W (manufacturer's specification) generated at a wind force of approx.
20 m / sec. an output of 70 watts.
After converting the generator to combined windings, the system delivered with a wind force of
5-6 m / sec. 140 watts. At
10-12 m / sec. were generated over 320 watts!
DIY-turbine .... It is tested at
35-40% mechanically efficient ...
https://overunity.com/10640/more-efficient-wind-mill https://www-buch--der--synergie-de.translate.goog/c_neu_html/c_08_08_02_savonius.htm?_x_tr_sl=de&_x_tr_tl=en&_x_tESPV-Tec GmbH & Co. KG in Blaubeuren-Asch
Wind-Pillar Whether the statement "we achieve an efficiency of
almost 100 percent" can really be proven, I leave it open.
A.
280 US$-81,2 US$/KW compared
" ...... The variants for domestic use with
0.5 or 1.5 kW generator output cost around €10,000. Under suitable wind conditions, the 500 W system generates around 4,500 kWh of electricity per year, which can almost completely cover the consumption of an average family. .... "
" we achieve an efficiency of
almost 100 percent "
100% from ? arithmetical limit / Carnot limit (near closed chamber effect) / Betz limit ?
https://buergerenergieberatung.wordpress.com/category/windenergie/Mini Wind Kraftwerk liefert 4kWh – Wirkungsgrad nahezu 100%May 21, 2013
compared
https://barrylebost.com/the-lebost-wind-turbinehttps://www.osti.gov/biblio/6531349-lebost-wind-turbine-laboratory-tests-data-analysishttps://worldwide.espacenet.com/searchResults?submitted=true&locale=en_EP&DB=EPODOC&ST=advanced&TI=&AB=&PN=&AP=&PR=&PD=&PA=&IN=barry+lebost&CPC=&IC=&Submit=Searchf.e.
https://worldwide.espacenet.com/publicationDetails/description?CC=US&NR=4295783A&KC=A&FT=D&ND=3&date=19811020&DB=EPODOC&locale=en_EP#cw rotor output
or ccw rotor output
or cw-and-ccw-rotor output : speed change/power change effect
https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=4&ND=3&adjacent=true&locale=en_EP&FT=D&date=20121009&CC=US&NR=8283799B1&KC=B1#with 250W or 400 W conventional generator
with improved generator ?
DC or AC or pulsed DC output !?
2 poles/ 1 coil ,4 poles/2 coils , 6 poles/3 coils, ..... output
https://www.integrityresearchinstitute.org/CleanEnergy-Vesperman.pdfpage 5 from 33 pdf pages Induction Coil Coating Increases Generator Output by One-Third ,David Yurth
mono-phase or triphase or polyphase output
What can DIY or team work/exploration reach ?
280 US$-81,2 US$/KW / #13
1750 EUR/KW
installation costs and
6 EUR cents/KWh generation
assumption : 27 % full-hour conversion= efficiency per annum
when the DIY energy conversion system has 8766 h x 27% nominal power efficiency :
( a. 280 US$ - b. 81,2 US$/KW divided
1750 EUR/KW) times 6 EUR cents/KWh ~
a. <1 EUR cent per KWh b. +- 0,25 EUR cent/KWh
BEFORE estate renewable -clean energy- investment incentive !
