Gwindoline - vertical axis wind turbine

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  • เผยแพร่เมื่อ 23 ธ.ค. 2024

ความคิดเห็น • 448

  • @antonmoric1469
    @antonmoric1469 7 ปีที่แล้ว +1

    Very nice, thanks for posting. I think that these uni-directional wind turbines from re-purposed hardware are the way to go for the majority of us who don't have the funds for the fancy store-bought stuff.

  • @agentlumino
    @agentlumino  14 ปีที่แล้ว +1

    We used an old alternator from a Simca 1000. We assume a useable power of min. 200W in winds about 15-20mph. Our idea has two goals. At first it is a drawing sample in a new AutoCAD 2011 training-video. These videos will be seen millions of times all over the world. This chance is us our second goal. We found that it’s very easy to build and the materials can be found on auto graveyards all over the world. We hope that lots of people will use this construction and build their own Gwindoline.

  • @romar1581
    @romar1581 4 ปีที่แล้ว +2

    Brilliant idea. I would add a cap over the upper bearing to protect it from rain and rusting. A similar project of mine some thirty years back produced horrible noises after a short while.

  • @robinmarwahaNewDelhi
    @robinmarwahaNewDelhi 11 ปีที่แล้ว

    Very Innovative . Hats off . After looking at many things on wind power - this was a cool idea .....Keep up the good work . Cheers

  • @Suavache
    @Suavache 3 หลายเดือนก่อน

    The wind generator looks very professional.

  • @EngineerWaelAhmed
    @EngineerWaelAhmed 9 ปีที่แล้ว

    واو .. روعة !! بس من وين أجيب القطعة البكره الكبيرة التى في الأسفل على البرميل

  • @Lifecoach7Ra
    @Lifecoach7Ra 12 ปีที่แล้ว

    Just found this amazing open-source-product and answer to the question of energy autonomy for the poorer half of humanity. Is there any possibility to also spread the AutoCAD-files further than in the training-video. Could we get the original file too to not reinvent the wheel? And last question: What is your experience with the forces on the bearings of vertical turbines?

  • @claudioferreira874
    @claudioferreira874 3 ปีที่แล้ว +1

    Não deixe as aletas fixas!
    Coloque um eixo em cada uma para que elas se movimentem independentes, abrindo a favor do vento e fechando contra o vento
    Com isso vai diminuir o arrasto aerodinâmico aumentando a eficiência.
    Mas o projeto é show por ser simples e eficaz.
    Parabéns!

  • @giancarlo4862
    @giancarlo4862 7 ปีที่แล้ว

    Veramente straordinario... bellissimo... pulito e semplice..
    Braviiiii !!!

  • @8xwlG3ZH9fo1mBVI
    @8xwlG3ZH9fo1mBVI 12 ปีที่แล้ว

    This appeals to me. I'm really interested in lowering my electricity bill and this seems like a good bet because it wouldn't cost much to build one of these in my backyard since its very windy there. My only concern is with certifying this operation. In order to be considered a micro producer of electricity in Portugal my power company sends needs to certify the equipment and approve my ability to sell them my generated power, and since this is a homemade "power plant" would they approve this?

  • @RHEAD100
    @RHEAD100 11 ปีที่แล้ว

    Bearing looks strong enough to handle a second unite on top giving twice the power at the same RPMs. I LIKE IT.

  • @eastboston1951
    @eastboston1951 8 ปีที่แล้ว +1

    I had thought of a vertical wind turbine similar to a biscuit fan, and wondered if it had been done by someone...great design with the barrel! There seem to be many advantages over the typical "pinwheel" design...the flickering of sunlight that bothers some people should be much less...also, it has to be safer for birds, and more durable...also, no need to face it into the wind, as it is always able to catch wind from any direction. Another idea I had has to do with the generator. I thought of a design where the distance of the fixed magnets from the rotor can be varied. In light winds, the magnets could be more distant from the rotor, allowing free rotation and the production of some electricity, however little. As the wind increases, the magnets, by means of a governor (either mechanical or electronic), could be brought closer to the rotor, producing more current, and acting as somewhat of a brake so that the turbine doesn't spin too fast. However, I don't do any of this, just think about it.

  • @bradleyshimels492
    @bradleyshimels492 4 ปีที่แล้ว +3

    Brilliant, free power. May the wind forever blow on your turbine !

    • @gmannubs6812
      @gmannubs6812 4 ปีที่แล้ว +1

      Sounds a bit perverse and personal 😁😁😁

  • @conspiracyfactualist9161
    @conspiracyfactualist9161 4 ปีที่แล้ว +2

    Amazing simple design buildable by almost anyone

  • @BazilioVieira
    @BazilioVieira 6 ปีที่แล้ว +1

    The biggest difficulty I think would be to build this perfectly balanced and symmetrical turbine to reduce the vibration that is common in this type of vertical axis turbine.

  • @hiki67hiki67hiki67
    @hiki67hiki67hiki67 3 ปีที่แล้ว

    Спасибо, парни!! Это лучшее видео и самая простая конструкция. Давно искал как сделать из бочки, а тут ваше видео само вышло в рекомендациях. Молодцы!😊

  • @frankyzee
    @frankyzee 8 ปีที่แล้ว

    This is a freaking cool ass video. Thanks for the great editing, plus... the AutoCad twist was perfect.

  • @CJLeTeff
    @CJLeTeff 12 ปีที่แล้ว

    Beautiful and well thought out design!

  • @Simmeheizer69
    @Simmeheizer69 10 ปีที่แล้ว

    What did you use as generator? Is this a engine from a washing mashine?

  • @pearinnovation1419
    @pearinnovation1419 4 ปีที่แล้ว +3

    Can any one suggest that any open source software to test wind turbin design in simulation

  • @MrPapapg
    @MrPapapg 12 ปีที่แล้ว

    incredible, amazing, phenomenal, and all. And why not use it?

  • @drawingboard82
    @drawingboard82 11 ปีที่แล้ว

    Nice work, especially the proper CAD modeling and the use of 5 sails. I am a bit concerned that it will flutter in strong winds... If so you might want to add support to the sail ends. I am basing this on experience - my dad and I built something very similar when I was a kid, using 3 aluminium sails, and the bearing and main pully from a washing machine drum - Looks like you also used a washing machine drum pully?. We mounted it around 5m up on a steel pole anchored to the ground. I like Savonius turbines because they are simple and easy to make.

  • @mark_osborne
    @mark_osborne 11 ปีที่แล้ว +12

    I love it ! Simple design, hats off to you ..

  • @edgargorodriguez2236
    @edgargorodriguez2236 7 ปีที่แล้ว

    aquí en Colombia alguien a fabricado uno como este y que resultados le ha dado, ya trabaja con pequeñas brisas o necesita instalarlo donde fuertes vientos, muchas gracias

  • @MrNightLifeLover
    @MrNightLifeLover 14 ปีที่แล้ว

    Nice, how much energy does it provide?

  • @tzouse
    @tzouse 13 ปีที่แล้ว

    How do you prevent the shaft from spinning inside the bearing? Did you machine press it in, glue?

  • @henkkoetzier9757
    @henkkoetzier9757 11 ปีที่แล้ว

    Nicely done. Where did you get the bearings?

  • @sophielaw5342
    @sophielaw5342 12 ปีที่แล้ว

    pas mal comme réalisation, j'envisage de la faire avec un alternateur de camion 24V 6OAMP
    je suppose que les panneaux oscillants le sont sur des axes soudés a la baguette; je m'inquiète du bruit de cette ensemble pouvez-vous préciser le nombre de db ?.tout autre précision sera le bienvenue.

  • @diler4321
    @diler4321 10 ปีที่แล้ว

    How did you resolve, that the barrel don"t slide down when the rod is up. I didint see that on the video. thanks :D

    • @DavidDence
      @DavidDence 7 ปีที่แล้ว

      A stainless steel clamp up against the bottom bearing should hold it from sliding down.

  • @lifter1000
    @lifter1000 7 ปีที่แล้ว

    Would not it be simpler to take a piece of galvanized tin and round it than to work a whole day just to break up a good barrel?

  • @agentlumino
    @agentlumino  14 ปีที่แล้ว +14

    It's able to produce about 300 Watt. It depends on the wind. But it’s enough to charge normal car batteries and so you can consume a lot of energy in a short period. And it’s surely enough to start your computer for 2 hours a day, or to charge a mobile, or to have light for reading the newspapers and to have a look at your pretty wife.

    • @galaktozawr
      @galaktozawr 6 ปีที่แล้ว +1

      no no no, it did not may 300w(need very high speed 13>m/s). This area blade very small. Max 10-15w. NOT 300w

    • @georgecarlinn6288
      @georgecarlinn6288 3 ปีที่แล้ว

      It's been close to an decade how is the wind turbine now

  • @africanadage852
    @africanadage852 2 ปีที่แล้ว

    Simply effective solution for power generation. Fantastic idea.

  • @WizzleThump
    @WizzleThump 14 ปีที่แล้ว

    What's that kind of bearing called?

  • @sailorondatea
    @sailorondatea 10 ปีที่แล้ว

    I just hve one question: How does it perform under heavy rain?

  • @martinmoraperez751
    @martinmoraperez751 3 ปีที่แล้ว +2

    busque,busque y busque y me encontre el mejor video ,referente a una turbina eolica casera,,,magnifico insuperable ...gracias...

  • @agentlumino
    @agentlumino  14 ปีที่แล้ว

    We used normal pillow block bearings, which are ready for installation.
    Greetings from Vienna

  • @sjh7132
    @sjh7132 14 ปีที่แล้ว

    How much power did you get out of it? Was there a generator on the real thing?

  • @AdeAmoenus
    @AdeAmoenus 6 ปีที่แล้ว

    it will be great a sistem to stop it a little bit if the wind is too much. What do you propose?

  • @denisboudet7332
    @denisboudet7332 6 ปีที่แล้ว

    Eine sehr schöne Lösung! The power?

  • @888mrshoe
    @888mrshoe 10 ปีที่แล้ว

    hi what size axle please and what bearings I have got barrel and angle grinder

  • @christophrufle5811
    @christophrufle5811 10 ปีที่แล้ว

    Ich will mit der Turbine eine Wasserpumpe direkt antreiben. Reicht die Leistung dafür oder braucht es ein Getriebe?

  • @tedthalassinos5668
    @tedthalassinos5668 7 ปีที่แล้ว

    where did you get the bearings ...looks great ...how do you call these bearings...

  • @josephdupont
    @josephdupont 7 ปีที่แล้ว

    could be used on a boat for a paddle wheel on the sides and back. to generate electricity in a creek. weld sprockets form old bike and make one big chain drive.

  • @suman.p6566
    @suman.p6566 5 ปีที่แล้ว +6

    I have all the parts & tools for this build except blue paint :(

  • @Thunkful2
    @Thunkful2 8 ปีที่แล้ว +1

    what holds the shaft in the bearings? I didn't see a press fit.

    • @bparsons72007
      @bparsons72007 7 ปีที่แล้ว

      Thunkful2 most bearings have either set screws or a locking ring

  • @brayanvasquez7102
    @brayanvasquez7102 7 ปีที่แล้ว

    como se llama el programa donde editaste los plano
    agentlumino me gustaria que me dijeras
    gracias

  • @luislorenzofuentes6841
    @luislorenzofuentes6841 6 ปีที่แล้ว

    The design is very nice and practical, greetings from Nicaragua

  • @OMGAnotherday
    @OMGAnotherday 6 ปีที่แล้ว +1

    Love the virtual v actual, can’t decide which is more awesome!
    😎👍🏼😎

  • @solotronixTV
    @solotronixTV 8 ปีที่แล้ว +3

    Awsome idea, lov it! Where can one get the generator part?

    • @danilocarno
      @danilocarno 8 ปีที่แล้ว +2

      ...Car alternator, for example.

    • @fishfire_2999
      @fishfire_2999 7 ปีที่แล้ว +1

      Han Solar it must be an alternator from a 1957:Etzel

  • @thisissoeasy
    @thisissoeasy 12 ปีที่แล้ว

    Very nice! Excellent presentation... Thank you very much for sharing.

  • @aleciatang473
    @aleciatang473 10 ปีที่แล้ว

    Wow! cool, what motor did you use for this?

  • @robertbheatcoker8638
    @robertbheatcoker8638 7 ปีที่แล้ว

    great, which generator are you using?

  • @jungojerry8791
    @jungojerry8791 8 ปีที่แล้ว +2

    This would be a little hard for someone without welding skills - metal cutting tools.
    So how much power did you get from this? Did you use a car alternator?

    • @jjtjp5761
      @jjtjp5761 8 ปีที่แล้ว +3

      you can do this with plastic barrels and some nuts and bolts.

    • @zzyyxx123
      @zzyyxx123 5 ปีที่แล้ว

      Or learn to weld and cut. It's really easy.

    • @zzyyxx123
      @zzyyxx123 5 ปีที่แล้ว

      You can rent the grinder if you don't want to buy one.

    • @clarkeugene5727
      @clarkeugene5727 5 ปีที่แล้ว

      @@jjtjp5761 I was thinking the same thing. I also plan to do it.

  • @alaminsheikh9772
    @alaminsheikh9772 7 ปีที่แล้ว +1

    hello, sir would you please tell me the output from the Generator? if you have no problem, please send me the project description file. I will be very grateful to you. Thank you

  • @jesushuerta1852
    @jesushuerta1852 5 ปีที่แล้ว +2

    Ok, but how about a video showing it working with a load.

  • @johnspirit6826
    @johnspirit6826 4 ปีที่แล้ว

    Hi agentlumino l'm just starting to make my own copy of this design ,can you please tell me why do you set the "blades" at 30deg & is it 30deg from where you left the tab connection of the drum sides to the top and bottom ? Why not go almost 90deg from the tab ?

  • @meenakshimeenu4511
    @meenakshimeenu4511 9 ปีที่แล้ว +2

    Where can I find a design for maglev windmill???

  • @phillipcleaver7063
    @phillipcleaver7063 4 ปีที่แล้ว +2

    Great to see one of these again , I made one based on a bird scarer design we call a " flash - harry" , never sold it , used it myself , drove a pushbike dynohub from the turbine vanes with a dead simple pushrod , this charges low volts a.c. , I fed this through a full - wave bridge rectifier , then a voltage regulator power transistor , used this to charge up a 6 volt moped battery , then battery powered a flashing light doing night duty controlled by a photocell & solenoid , piezoelectric buzzer also , the point was to deter foxes out of outside early lambing ewes by moving this thing around , it was like a tripod , the vanes sat on a tiny semi - spherical home - made bearing , it looked like a sort of mechanical triffid , my old dad nicknamed it " the windjammer " . We had a band of high wind hit us one early morning , & it ended up spinning so fast it way overcharged the battery , & set fire , me & dad threw buckets of water at it to put the battery out , it was away from any buildings , no damage , just a burnt - out dream . Dad said "No more of them , mate ! " All part of once being young , it stunned me just how much power it generated from only a pushbike dynohub , so , apply considerable caution to your potential power regulation circuits out there , build in some fail safe cut - outs , ( fuses at least ) . Happy Days .

  • @kimballwiggins3976
    @kimballwiggins3976 9 ปีที่แล้ว +1

    really great- im in hungary are you near Wien?

  • @lionxuser
    @lionxuser 12 ปีที่แล้ว

    hi... super idee erst ma :D
    die weiter entwicklung wäre dann das eine mechanik instaliert wird die die rotorblätter einfährt bei zu starkem wind... so könnte die turbine dann bei jedem wetter laufen...

  • @stanislavcoros
    @stanislavcoros 3 ปีที่แล้ว

    and why do you have motor generator on belt ? for another loose of power ?

  • @Hilljack69
    @Hilljack69 11 ปีที่แล้ว

    bearings of this sort can be found at TSC oe a farm oriented store

  • @mensageir0_d0_futur0
    @mensageir0_d0_futur0 5 ปีที่แล้ว +4

    How much power this turbine generates?

  • @jorgereyna7622
    @jorgereyna7622 5 ปีที่แล้ว +1

    Doest it have enough rpm to produce energy?

  • @richardsampilo9186
    @richardsampilo9186 6 ปีที่แล้ว

    Thanks for this sir ican help my tribe speacialy those no electricity for this kind of energy of wind to light up homes si that the kids study at night. It is posible to charge batery?

    • @reveintravez6420
      @reveintravez6420 6 ปีที่แล้ว

      Ye its possible charging a battery though using charge controller.

  • @teotony7725
    @teotony7725 4 ปีที่แล้ว +4

    Nếu bạn muốn tăng hiệu suất của cái cối xoay gió theo kiểu mô hình này, thì bạn đừng làm quá nhiều cánh quạt, nên cắt cái thùng đó ra làm 3 cánh thôi để chúng cách nhau 120 độ 1 cánh trên hình tròn thì sẽ có hiệu suất cao nhất. Vì khi gió thổi qua bất kì mọi hướng thì gió thổi vào 180 độ của mô hình điều này gió đẩy 2 cánh quạt trong 180 độ của nó còn 1 cánh còn lại đi ngược chiều. Giả sử bạn làm 10 cánh thì thì tỉ lệ cùng chiêù là 5 , ngược chiều là 5 , giờ thì lực gió còn lại chỉ là độ cong của cánh quạt ( tính vectơ ấy mà). các bạn có thể thử nghiệm . Tui cam đoan là 3 cách sẽ cho hiệu suất tối đa, nếu nhiều hơn thì nó nặng lại phản tác dụng. Bạn có thể sử dụng mô hình để làm bơm nước giếng thẳng đứng nếu trục của nó là hình xoắn ốc nằm trong 1 cái ống . 🤫

  • @larradiaz7750
    @larradiaz7750 8 ปีที่แล้ว

    I have been fond of wind turbine and because of that I purchase one.. but I never seen a turbine like this.. hmmm I better make one..

  • @King_TuTT
    @King_TuTT 10 ปีที่แล้ว

    Question.... How to you balance this thing so it doesn't wobble at high speeds??

    • @DavidDence
      @DavidDence 7 ปีที่แล้ว

      Place it on its side and weight the edges until it is perfectly balanced. It should not settle or give precedence to any position. It should be at rest no matter where you turn it.

  • @evil17
    @evil17 6 ปีที่แล้ว

    What an excellent idea, job and vid, thanks guys, done well!

  • @rumplestillskin6424
    @rumplestillskin6424 3 ปีที่แล้ว

    Can you put it on a cam .like a combine reel.

  • @MrGorby69
    @MrGorby69 14 ปีที่แล้ว

    ottimo lavoro semplice economico e funzionale
    complimenti da ROMA

  • @javiercanaviri6559
    @javiercanaviri6559 8 ปีที่แล้ว

    hola que tipo de motor es ese

  • @valteirnunesdasilva
    @valteirnunesdasilva 3 ปีที่แล้ว

    Se colocar mais dê um gerador no rotor dobra a potência né

  • @rupacarachanel
    @rupacarachanel 3 ปีที่แล้ว +1

    Ini nampak bagus dengan sedikit tiupan angin akan memenuhi harapan untuk mendapat putaran yang lebih,Anda hebat

  • @myownspiritlevel
    @myownspiritlevel 11 ปีที่แล้ว

    If you consider CO2 a pollutant and not plant food, then yes, we should pollute. Oil is a wonder of nature. It's relatively easy to extract and refine, and the resultant fuels are highly energy dense and easily transportable. One theory is that the inner crust is an oil factory, continually producing oil, and as we've seen, replenishing previously exhausted oil fields. We should do practical things to remove the bad stuff from exhaust, but CO2 is not one to worry over.

  • @donalain69
    @donalain69 5 ปีที่แล้ว +5

    Wouldn’t it be more effective if the flaps would be able to move as well... so they would close on the side moving against the wind and therefore generate less resistance..? I think once moving the centrifugal power should be enough to open them back up enough for the wind to be able to fully open them again on the other side.

    • @JamieTransNyc
      @JamieTransNyc 4 ปีที่แล้ว

      Conservation of Angular Momentum will induce vibrations if you attempt this.

  • @nonooccansey4699
    @nonooccansey4699 3 ปีที่แล้ว

    This video only show the mechanical Shema but we need also the electrical circuit. Help me .I have already built everything then it remained only the electrical part.

    • @terrycoombs7693
      @terrycoombs7693 3 ปีที่แล้ว +1

      If you're using an internally regulated 12 volt alternator - and most are these days - you need only to connect the hot and ground wires to your battery charging device . Instructions should come with that device .

  • @Frank-uy9in
    @Frank-uy9in 5 ปีที่แล้ว +3

    Well done, I do have a concern about the bearings. Those bearings are not designed to run that way. You would need to put a thrust bearing on the bottom, to hold the weight, and then the top one would be OK.

  • @rajivkrishnatr
    @rajivkrishnatr 9 ปีที่แล้ว +7

    Hi! Very nice video! How much power did you produce from it, if at all you fixed the generator?

  • @marcocarotta1675
    @marcocarotta1675 4 ปีที่แล้ว

    does anybody knows where can I find the CAD project?

  • @darkmotion_
    @darkmotion_ 10 ปีที่แล้ว

    Can I get the AutoCAD file? Please

  • @johnny5stickswilliams696
    @johnny5stickswilliams696 3 ปีที่แล้ว

    How much power do you produce ?

  • @mohammedsultan4293
    @mohammedsultan4293 6 ปีที่แล้ว

    بصراحه انا معجب بالفكره ولكن لم اجد الدينمه المناسبه للشحن البطارية لوسمحت ترسل لي تفاصيل عن الدينمه ....

  • @patrickjensen6688
    @patrickjensen6688 5 ปีที่แล้ว +2

    Wonder if there water and wind universal

  • @СТРОЙКАДОМАНАБОЛОТЕ
    @СТРОЙКАДОМАНАБОЛОТЕ 10 ปีที่แล้ว +3

    Генератор от чего ?

    • @ALEXANDRUGIDALI
      @ALEXANDRUGIDALI 10 ปีที่แล้ว +2

      GENERATOR ALTERNATOR 12 VOLTI,40 AH,AUTO DACIA 1300

  • @agentkalicki1998
    @agentkalicki1998 5 ปีที่แล้ว +2

    How mamy Watts?

  • @hunterameer
    @hunterameer 10 ปีที่แล้ว +1

    How many watts can generate?

    • @EngineerWaelAhmed
      @EngineerWaelAhmed 9 ปีที่แล้ว

      امير السامرائي لو سمحت ؟؟ الفيديو عاوز أعمل مثلة ! بس من وين أجيب القطعة التى أسفل البرميل ؟؟

  • @tinaosas6184
    @tinaosas6184 3 ปีที่แล้ว

    Please how much does It cost for you people to produce a turbine

  • @KamranChattha007
    @KamranChattha007 5 ปีที่แล้ว

    Which genrator to choose

  • @jubbaday
    @jubbaday 8 ปีที่แล้ว

    Great presentation!

  • @abinantoanchery6652
    @abinantoanchery6652 5 ปีที่แล้ว

    Is it suitable for 5 m/s

  • @GTPhan
    @GTPhan 4 ปีที่แล้ว

    AutoCAD LT can do 3D modeling?

  • @stanislavcoros
    @stanislavcoros 3 ปีที่แล้ว

    do you know how heavy is barel :D this is debilism regarding used material

  • @Luong_Thien_Hung1988
    @Luong_Thien_Hung1988 5 ปีที่แล้ว

    Thank you. Your video is very cool and useful. My name is Thien Hung, I am in Vietnam. Glad to be friends with you.

  • @azerfady2555
    @azerfady2555 ปีที่แล้ว +2

    ممكن التفاصيل والمقاسات

  • @stokerboiler
    @stokerboiler 4 ปีที่แล้ว

    Rotor torque and RPM vs wind speed? Fixed rotor pitch means the turbine cannot be unloaded in high wind. You better reinforced the center shaft a lot. But it has a lot to like. It is dirt-cheap to make and is scalable.

  • @RWIZA
    @RWIZA 11 ปีที่แล้ว

    I wish i could be good in autocad like you

  • @larryisgood
    @larryisgood 11 ปีที่แล้ว +1

    Never use this type of cutting equipment on empty diesel storage barrels. The barrel will still have an air-diesel vapour mixture which is explosive.

    • @888mrshoe
      @888mrshoe 10 ปีที่แล้ว

      leave it bung out upside down sloping towards a container let gravity do its job overnight fumes will condense and fall out of drum most oil will light as vapour
      ,aint built one yet but cut a few barrels

    • @hunterameer
      @hunterameer 10 ปีที่แล้ว

      Good advice, well done

  • @srwisner
    @srwisner 3 ปีที่แล้ว

    Where does the air it collects go? I'm thinking if the top and bottom were an open frame the air coming into the blades would have an escape and provide more power/rpm

    • @gangleweed
      @gangleweed 3 ปีที่แล้ว +1

      The air exits on the down wind side as the turbine turns.........it will not compress and escapes naturally on the other side 180 degrees to the side the wind is acting against as the VAWT is unidirectional no matter which way the wind is blowing.

  • @auraksukyuen3052
    @auraksukyuen3052 6 ปีที่แล้ว

    อยากทราบความเร็วต่อรอบ