windturbine_v2

DIY Vertical Wind Turbine v2

Home made magnet levitated vertical Wind turbine (VAWT) - 29.5 Kw/hour power estimated at 12m/s wind, by efficiency 18%, alternator efficiency 41-64% (depends from turbine rpm: in range 10-150).

V2 prototype is canceled, now actual prototype is V3 (started 03/2011, continuing now). To follow in progress, go to title page (sorry, updates only in Latvian). In following months (till 2013Q1) I will create new web-site design.

Proof of concept prototype

Real Wind measurements (9 month)

Real Wind measurements (1 year)

COMPETITOR of "IDEA CUP 2009" www.idejukauss.lv

(passed to 2.stage in 559 project concurrency)

Uwix-V2 wind generator

Technical data:

H: 4.10 m

W (diameter): 1.25 m

wings: 8 pieces

2800 h x 400 w plate +

2800 h x 110 w half-cut-pipe

Summary wing area:

11.42 m2

Efficiency:

Turbine: 18%

Alternator:64%

Estimated production per year calculated using real location wind measurements:

Using only stable wind data:

27 517,93 KWh

Using wind+gust data:

137 219,36 KWh

Estimated turbine RPM speeds:

4 rpm @ 2m/s

8.5 rpm @ 3m/s - 0.4Kw/h

20 rpm @ 4m/s - 1.3 Kw/h

32-45 rpm @ 5m/s - 2.9kw/h

45-65 rpm @ 6 m/s - 4.9kw/h

70-80 rpm @ 7m/s - 8.3kw/h

90-100 rpm @ 8m/s -13.6kw/h

100-150 rpm @ 9-15 m/s .. up to 30kw/h

(rpm depends of load and construction quality)

Power generator:

Direct-drive 36 coils (12x3 phases) - or 3phase x 12 coil each.

96 Neodymium block magnets for alternator

Levitation:

4 ring magnets for main shaft levitation

360 button magnets for contra-vibration and angle stabilization.

01.09.2009 is started construction of a wind turbine "Uwix-V2" (with alternator).

Estimated power production

Created rotor base and stator base.

Tested magnet levitation.

Conclusion - The metal stripes for placing magnets are very very important! They allows placing magnets in less distance than 2 disc magnets (forces between magnets pushes each away).

For comparing .. maximal near distances between with no metal and with metal ground. Second test - thickness of metal matters or not. Surprise .. 0.5mm thick works better than 1mm thick :)

Created all wooden parts (rotor & stator)

After forks - polishing items

Bought 100 block mangents in [ebay] for alternator, Grade MGO N40 Neodymium , 5.02x1.27x1.27 cm (2"x1"x1"), 83 grams , pull 21.77kg. . Ebay seller: magnet_master

Maglev main items - 4 ring magnets[ebay] (MGO38, 10mm thick D outer=50mm, D inner= 20 mm, 74 grams , 18.326 kg pull), 300 button magnets (D=10mm , thick=3mm) from magnetsmagnetsmagnets

Bad experiment, placing maglev balancer magnets without metallic base [TOTAL FAILURE, DO NOT SO MORE!]

Metal parts - metal rings for magnets, laser-cut, well packed

Metal rings on construction, all at top, only for demo - not placed in right places

Maglev angle balancer magnets placed on one ring [360 buttons required, have purchased only 300, 40 from them crushed in previous VERY BAD EXPERIMENT by separation]

Failed to test maglev construction. Not enough buttons : for every side about 180 magnet buttons required, have purchased only 300, and from them making mistakes have lost (crushed) about 40 items.

Little assistance :)

27.09.2009

Completing all magnetic part (first try).. - have all metallic parts and magnets

Attached magnetic base ring

magnets packed & unpacked, spacer

first pack placed

first ring (1level) completed

second ring (2level) completed

Both seems nice

UUUPS! 20 cm is already engough to fly away from metallic plates to opposite magnets... UFF.. good my fingers was not between there

Preparing for first try, positing face-to-face. Place spacers ..

how it seems from side. Yes, sure need to epoxy to the rings those magnets...

OK, try to detect - if ring magnets are enough strength to keep flying all the weight .. - w/o magnets , very OK

with magnets (incorrect placings), still distance 2..3 mm kept :) YEEE! At least one success today!

Maglev stabilizers - first (1level) ring completed

magnets now are 1/3 of size spaced.

Additional 300 button magnets arrived from USA (3 weeks waiting).

03.10.2009

Have purchased another 300 button magnets in e-Bay.

11.10.2009

Today have arrived to post-office 300 new button magnets.

13.10.2009

Good news, today started construction of pole tower.

14.10.2009

Now my idea is participating in LATVIAN innovative business IDEAS COMPETITION "IDEA CUP 2009" (www.idejukauss.lv)

16.10.2009

FULL 1 YEAR Wind data now available - RAW source (5.2MB, compressed ~800KB). Total 52706 measurements every 10 minutes.

EasyWeather_03102008-15102009_year.zip

17.10.2009

A poles for generator arrived :) Not all holes created... must be done extra.

60 cm pole for rod.

in both endings a centred M16 hole (need M18 hole)

Big pole fixings, 1cm thick base plate

Big pole, 220mm height, the termo-isolator is left specially, for better vibration absorption

Upper connector

comparing to myself

18.10.2009

Digging hole for turbine concrete-base [UFF, 6 hours]. Sorry for picture quality, author is my little daughter :)

Hole couture, 1.5m x 1.5m x 1.2m deep

ground watter level reached

mud for terrain leveling

every 5 minutes, about 20 buckets before continue digging

at each corner an old concrete pole

pole about 1m height, behind poles in perimeter will be placed wooden plates for filling with concrete

fun of splash :)

filling hole base with stones

I am exhausted, but happy

Brigitta, the photo author

01.11.2009 A good friend Aidis Tomsons has donated a armature which don't need self more, for my concrete works. Thanks! Its what I need ! 04.11.2009 Have received an important call & mail, which makes me lot enjoy. I have passed to the second level in IDEAS COMPETITION "IDEA CUP 2009" (www.idejukauss.lv). Watching on 559 concurrents, it seems very encouraging. The most intrigue for me makes, how much pretenders have left - that is a secret till official second stage opening at 06.11.2009 12:xx. Keeping in mind , that only 10 projects will be at end, 3 of them granted, i predict, that only 30-50 projects have passed. Will see if I have truth.

18.11.2009 (91th birthday of Latvia) - making concrete base