Vertical Axis Wind Turbine with Casing

[ownerheard]

I Love The Video It Can Increase My Knowledge Drag-based vertical axis wind turbine initial assembly and test. Uses a Savonius blade-design and a casing to throttle air at higher and velocity and optimal placement.

[ayamsory]

Good, I like that you share this video, I wish success always Uses a Savonius blade-design and a casing to throttle air at higher and velocity and optimal placement.

[Destayear]

Nice Video That You Share , So Very Nice Thanks You Uses a Savonius blade-design and a casing to throttle air at higher and velocity and optimal placement.

[cTianroy]

I Really Like The Video From Your Vertical Axis Wind Turbine with Casing

[anakmudajaman]

Your Video Is Very Useful Sharing Uses a Savonius blade-design and a casing to throttle air at higher and velocity and optimal placement.

[1819engel]

windkraftanlage-ersatzteile.be­epworld.de

[rickcain2320]

A great bird shredder.

[JustSomePerson888]

@rickcain2320 - let's see you post that at every aviation tech video too. and don't forget all those roads being animal death-traps.

[ZebbMassiv]

Imagine if tall skyscrapers had about a few hundred of these on their rooftops what a difference that would create

[mchaskel]

@early1900s Some companies have explored this recently - but you are ultimately trying to do the same thing - whether you are using static magnets or coils. I get the feeling there is not much technical merit to this approach, although I do think it is worth looking into.

[ThinkStage]

Very cool

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[SCTION3]

This looks like my old pool filter =P

[zerosix1786]

that also makes for a nice coffee table lol

[mchaskel]

@zerosix1786 Indeed. Versatility at its best.

[AtomicRooster190]

would that case work to muffle sound?

[mchaskel]

@AtomicRooster190 Not being an acoustic engineer - I see how it would. The moving components and generator, the main causes of noise, are both inside the housing. So hopefully little noise would be heard outside!

[JustSomePerson888]

@mchaskel - they could be made to run quietly, they're just large dynamo's really.

[aoleu1200]

looks like a pretty sure source of energy, but it looks to me like it can loose a lot of wind force to be sustained

[yoboyjean]

this means with knolede you can irigate the desert in a very cool way free and all you need is the ocean heat and seeds. and wind .. dang

[JimLundberg]

Woo, 27% is higher than I expected, but this is definitely a great design. But one author above was properly following his instincts with the thought about needing an efficient exit for the wind.

[StabbyMcButterPants]

My dog chasing it's ass in circles runs faster than this. :/

[parmaian]

Ha! I have planned EXACTLY that kind of a turbine now few years. It is really true that everything is already done on earth..

Well, I keep building protos anyways.

[SaschaHeylik]

Can you power your home from wind energy only?

[BABarracus4]

@SaschaHeylik you can but you need batteries greg richter used a series of deep cycle batteries and only thing is he had it connected to a desil generator. just google him

[tim19882010]

NO



[yoboyjean]

@tim19882010 yeah



[tim19882010]

LAMMM

[TheFerchopp]

Increibleee!!!! pero, para que sirve¿?

[mchaskel]

@TheFerchopp Tomamos la energía del viento para crear electricidad!

[TheFerchopp]

@mchaskel y cuanta energia sacan con eso?

[mchaskel]

@TheFerchopp Este era un proyecto para probar el concepto. Bien diseñado, con algo de este tamaño, podríamos extraer unos 500W en fuertes vientos.

[OCSnowBoarder]

SMART!!!! Options for a breaking system...

[mchaskel]

@OCSnowBoarder Hmmmm... perhaps a resistor bank would do the trick? A disk brake would add a bit too much to the costs... I think...

[flvnow]

@mchaskel Using resistive braking only means the generator is putting its total output into a load, max current thru the gen. The vane control the wind power, no extra, prolonged load on the gen.

[bogieman987]

@mchaskel What about finiding a way to stop wind getting to it? Or atleast managing to reduce it drastically.

[BergerII0]

Why did you add the casing .... Does it add to the voltage that is supposed to come out of the VAWT, or does it diminish the voltage that is supposed to come out of it

[mchaskel]

@BergerII0 Hey! When it comes down to it, you are increasing torque (by minimizing drag and pushing out the force from the wind).  This will allow you to pull more current at a given wind speed, and hence more power. (Power = Voltage*Current). Voltage is separately chosen and depends only on the generator.

[liwanagjastine]

ya right..

[1crazyfocker]

i have done a lot of test, with VAWT and HAWT, and yes the VAWT is more efficient, and adding the case helps by 50% to 70%, how ever my test show that a thinner stator blades works better by ~70% then the "fatter" wing shaped (aerodynamic) stator blades. try it. just use thin 1/4 round or 1/2 round stator blades, you will get ~70% better results plus works better with the same number of stator blades as rotor blades. your may vary but i got around 70%. ether way it will help.

[mchaskel]

@1crazyfocker Interesting! So the thinner stator profiles allow more of the wind energy in? My only thought would be you would need a stronger (and presumably more expensive) material, but I can see how it would work!

[1crazyfocker]

@mchaskel the main point, is the super fat wing shaped (aerodynamic) stator blades are just a waste, I am not talking about paper thin, but for this size just use PVC pipe cut up. haveing the stator blades wing shapes dont do anything but looks pretty, in fact it creates a low pressure on the hump side, and messes with the air flow to the rotor blades, (could be why I got ~70% better conversion) plus it "pushes" on the stators eating up more of the energy. but simple "thin" stators works great.

[mchaskel]

@1crazyfocker Interesting perspective. We were trying to have the stator act as a nozzle too - having the inlet larger than the outlet, accelerating the incoming wind. What are your thoughts on that approach?

[1crazyfocker]

@mchaskel it depends, i would need to know more about it, just dont get sucked in to the mind set, that "pushing" air thru a funnel creates "thrust" like a jet. bc what happens is there is a pressure build up inside the funnel, that "steals" the energy from the wind. and prevents more air from enetering. but like i said I am not sure, exactly what you are going for, I would need to know more. but i do know a lot of ppl seem to think a simple "funnel" can act like a "jet engine" and creates trust

[mchaskel]

@1crazyfocker Hey! Yes, not necessarily like a jet engine. A jet engine would use a turbine/compressor to create a pressure difference - I am thinking more in terms of taking the the inlet velocity and the outlet velocity passively. It is true that, like you state, there will be some pressure outward from the enclosure that will resist the change in velocity. Thanks for your thoughts!

[1crazyfocker]

@mchaskel email me more about it. sound like a good idea i think. just not enough space to explain it here. i brought up the whole "jet" thing BC theres a few ppl on here that call their ideas "jet" tip, ....ect they have that mis informed idea that air passing trhu a funnel/tube some how makes trust, thats all. but would like to see a drawing or a better explaination of your idea, email me.

[GaryGrick]

CReo que funcionaria mejor con IMANES - IMAN bueno es una idea

[mocona3591]

J’ai mieux, puisque pas dépendant de courant d'air ,d'effet magnus ou Coenda

Voir: art-of-design.co.uk/mon-invent­ion.php

Mettre 3 w avant art SVP.

Faire plus que le colibri dans la forêt en feu. Participer. Merci.

Jean-claude Guillermain

Ingénieur et ingénieux.

[tina6581]

I made one of these for my school project in1982. I used wings from airfix models of Wellington bomber for the walls and a beer can for the wind turbine blades. I got a C-. a complete waste of three airfix models and two days work.

[OCSnowBoarder]

@tina6581 LOL...

[mobspeak]

That's genius .. no matter what way the wind comes from is turns.. why are most wind turbines so one dimensional?

[mchaskel]

@mobspeak Correct! Check out vertical axis wind turbines, very promising stuff at the residential scale.

[wafi0123]

this technic allows bydirectionla inlet control so half of blade only get hit by the flow .any way VASIMR is the future power plant of the earth. cuz fuel efficient.VASIMR combined cycle power plant batter then nuke.

[wafi0123]

this design is similer to my design but my reverse wind dragloss as next level i moun the outer on a bearing and wind directional radar clamp on outer ring so u can all ways get wind direction to inlet only thank

[Yaaroslav]

my 0,2 Mw wind turbine is more sexy:))))!!!!

[yaricksgym]

sexy

[onebreh]

Shitty design



[bweazel]

How many watts?

[rajeshgopin]

What if a lift type VAWT is placed inside the casing like the Darrieus/Gyromill...Will it inmprove efficiency better than Savonius that you use currently?

[mchaskel]

@rajeshgopin Yes! Probably, anyways... We were a little limited in our manufacturing ability, so we went with a simple Savonius, but it should work well for a Darrieus too.

[derman077]

nice place to wedge a bird

[rowanshole]

You only need four blades, curved..... acting as concentrators, deflectors, and exhaust. Four blades, or vanes if you will, significantly larger will achieve all of these things.

regards

John

[smichelsen]

I confess to having zero scientific understanding about all this, but, with a VAWT with a casing like this one, where does the wind go after it is done pushing the blade? If it is trapped in a casing even a little, will it not create pressure that can slow the thing down?

[mchaskel]

@smichelsen Good point. The air has to leave the casing, and it does so through the upwind vanes. This was a concern with us at the time and we ran a few simulations to make sure this would not be a big issue.

[dus777]

OK, but what is gained by using the casing? Are we talking %10? %5?

My unscientific attempts at a similar idea didn't seems to make any improvement.

[mchaskel]

@dus777 Good question. Honest answer is "we never found out". We did have an even smaller model we tested in a wind tunnel however. I think it was ~27% increase for the small model, but I doubt this would be similar for the larger one.

[dus777]

@mchaskel I've improved my model and I see improved speed and startup response, but I still don't have any numbers to show for it.

[beveik]

"sexy" ? ....wtf

[chernyavsky]

seems like he'd like to fuck it

[hazmat440]

try turning your defuser blades on the stator assembly about 110 to 120 degrees clockwise from the top and that thing will get ripping when ambient air hits it thus reverse flow air travels faster jet engines work the same way. your set is great, however it's having to work against itself Nice job keep up the good work, best of luck

[datzfast]

so is this suposed to what ?

[Greenpeace82]

If u have nothing to do, go play on the streets, don't comment what u don't know ok? bye

[datzfast]

translation, please

[Greenpeace82]

Drag-based vertical axis wind turbine initial assembly and test. Uses a Savonius blade-design and a casing to throttle air at higher and velocity and optimal placement. Wind based power generator.

[datzfast]

the wasted resources used to build the casing should have been put to use in the moving part

[mchaskel]

@datzfast The casing does a few things:

a) Accelerate the air as it comes in.

b) Direct the incoming air towards the receding blade, lessening drag on the opposite blade.

c) Direct the incoming air towards the outer portion of the blade, maximizing torque.

[DominickBlack]

This is a good design for low wind trickle charge applications.

[kreuzundquer]

i think asteris3 is right

[rimisz]

This is a good idea :)

[asteris3]

it would de stronger if the casing was moving and the inside be gone:)

[datzfast]

@asteris3 you know what, i think your right.

[tordherflower]

cool

[thebrujis]

it IS sexy!