V3 - Vertical wind generator (3dth attempt).

Teorētiskie dati:

PIRMAJIEM PIRKT GRIBĒTĀJIEM!

V3 ir Apgreidojams uz 20KW (?50KW) - pievienojot 8x12m grozāmu kapuci, nomainot ģeneratora magnētus un spolītes, regulējošo elektroniku, kas izmaksā ~ 3500Ls (+ transports).

Labuma teorētiskā analīze.

Mana V4 20KW turbīna teorētiski strādās ~75% gadā (starta ātrums 0.8m/s [kompresija 6x]) iepretim par 6x lielāku naudu (36 000Ls) pirkts 20KW propelleru ventilators. Analogs sāk tikai ražot pie 3m/s, un pusi no nomināla (10KW) sasniedz tikai pie 7m/s, kas pie mums viesojas ļoti reti. Manējais paredz strādāt "ķerot arī sīkās enerģijas" diapazonā 1-7m/s, kas kopumā ir 81% gadā, tādējādi labums būs 3x biežāk, pat ja no enerģijas viedokļa tikai +20%.

Pie kam jums vajadzēs tam izlietot tikai 12 x 12m zemes pleķi priekš V4, iepretim analoga 24m tornim nepieciešamajiem 72x72m laukumam. Jums nebūs jālej pamati un jāsaņem saskaņojumi (pieklājība prasa tomēr saskaņot rakstiski ar kaimiņiem).

Local wind condition (1 km away from my site).

(sorry for switching to Latvian language)

09.02.2012 21:45 pa LTV1 Bija sižets "Eiropa -mīti un realitāte" par manu izgudrošanu

Video še http://ltvzinas.lv/?n=zinas&id=4922 (23:08-29:05)

Par cik praktiski tika parādīta visa konstrukcija, atklāšu to arī šai vietā. Dažas bildes vairs nerādās, jo foto.inbox.lv tās bildes ir pakāsis.

4KW vēja turbīna, 4x4m (16 m2)

Turbīna ar ģeneratoru: 12V <-> 280V, 24 spoles, 96 magnētu pakavi, 6KW nomināljauda, sāk ražot pie ~12RPM. Testi dzīvē ar 4 spolēm

Gaisa plūsmas un turbulences:

Turbīnas kodols:

Spieķu-spārnu striprinājums:

Uzstādīšanas platformas konstrukcija (V3):

09.02.2012 Biju kurzemes biznesa inkubatorā (Saldū) ar savu piedāvājumu

Starts diemžēl neveiksmīgs. Ne īsti nenoraidīja, nedz pieņēma - iepauzēja, pateica - atnāc vēlāk kad būsi uztaisījis pirmo prototipu un pierādījis ar cipariem ka tas viss strādā. Tikai stulbi sanāk - es tak tur gāju pašam nepietiek naudas to izdarīt, jo ja jau spētu nofinansēt pirmo prototipu, tad arī visu pārējo jau izdarīšu pats bez viņiem!

Un viņi principā riskēja ar 5000Ls EIROPAS! naudiņām (izdalīti 17 miljoni latu), kuru izlietojumu ļoti strikti soli pa solim paši kontrolētu. Domāju ka tie miljoni ko tie inkubatori apēd, ir bezjēgā izniekota nauda teorētiskajās konsultācijās, nevis reālās lietās un biznesā. Pie tam reālu ražošanas telpu (4.2m griestu un 4.2x4.2m vārtu - klasiska smago auto garāža) viņiem kā sugas nav, vēl jāskaidro vai tādus caur LIAA var dabūt-saskaņot.

Mjā, nebrīnos ka Eiropas ekonomika ar visiem saviem miljardu tēriņiem nereālajā ekonomikā ar skaistiem lozungiem un papīriem iet dimbā. Totāls fufelis.

28.06.2011 Coil winding machine - joined software and hardware

Today have finally joined 4 of 5 parts together.

First part - coil winding motor with reductors, extracted from damaged copy-machine. 38W permanent magnet brushless motor, reduction ratio about 14 : 1. This motor requires 24V supply wich i feed from 2 series-linked UPS (12V 7Ah) batteries. Have spend a lot time to understand how to control this device, and how (if is possible) to get status information from BLDC motor to identify how much coil windigs already have done. Saddly - this controller doesn't provide such signal, so have spend time to attach on different places (not destroying the item) some sensors, and at least attached dirrectly on final-axle simple click-type button.

Second part - 3.5" floppy drive , its very easy to control them. I will use it to steer wire while winding it on coil - displacement. More about how do it here:

http://www.codeproject.com/KB/system/floppystepper.aspx

Third part - collected from trash PC. Pentium 4 1Ghz , Intel desktop board D815EGEW, 256 RAM, LPT port!!!! + LPT cable thru I controll the both previous parts. Operation system: Ubuntu Linux 10.10.

Fourth part - my first linux-console-gui application coded in native C, using NCURSES + MENU + PANELS packages. Have created it so, that it could be reused for different coil profiles. It is not finished, but still works pretty well.

You can see below how it simulates 30 winding coil creation.

The fifth missing part is a put it in some sort of case/enclosure, and create axle for swappable wiring feed bay , and put between rollers to tense wire due winding process. Of course all needs calibration, and then victory!!! - making 2 sets of 24 coils, each coil 120 windings, 12 rows x 10 columns, looking cross-section of coil top side.

28.03.2011 Obtained wires for coils

Have got a 1.6mmD magnetic wires from 2 different sources (1 kilo x2) to validate, which provider makes best PET-155 wire.

Insulation nominal: 5.3 kV

Tested in laboratory: 9 KV

Working temp: up to 155 °C

Durability:

30 minutes @ 200 °C

2 minutes @ 240 °C

23.03.2011 Anouncing V3 design

After construction and design failures in V2, at end year 2010 have decided to cancel attempt to finish it and start design new version - V3, which would have avoid several previous mistakes.

1) Snow - the center packed on top with snow makes very soon disbalances. Especialy when snow mixed with rain creates iced snow.

2) Central axle - must be made very strong to sustain 5 ton side-wind and axial-angle displacement force up to 5000Nm.

3) Magnetic levitation has failed - when the are near to ordinary ferrite materials (not Aluminium), the lifting power decreases very noticeably. Redesign to bearings. Perhaps, I will latter try add on top of central axle add those lifting magnets, will see if that helps...

4) 8 blade design was not efficient, but the increase of blade area causes soon problem in overweight/overload on single stick and their sticking place. The other reason - 8 blade turbine caused lot of turbulences inner space.

4) After lot of simulation (6 blade, 8 blade, 10blade, 12 blade, 14blade) , have noticed, that best performance is achieved on 12 blade design almost in every wind speed. This design has best LOW (1.2 - 2.6 m/sec) wind usage.