Micro Tesla Turbine MK2 | Part3 | Finishing and Testing
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- Опубликовано: 28 окт 2016
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This is the last of the three part series of building a micro Tesla turbine. It was exteremely challenging just to make it spin at these speeds with almost no clearence from the end caps and the housing. It didn't perform as I was hoping, but in the future I plan to do some updates on this one to see its real potential. The biggest problem is the fact that I never managed to balance it properly as I do not own any equipment for that. It's performace would be different, especially if the output shaft was geared. For those who will ask why I used the faulhaber brushless dc motor as generator is because it's very smooth when rotated and the vibrations which was a lot from the turbine alone wouldn't increase.
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81,000 rpm - damn. Johnny, i'm very grateful and proud to have discovered this video. Very very proud. Today is my birthday, i'm 56. I've worked on lathes in metalwork shops for years. Your video was beautiful to watch. The comments also made me happy. Thanks.
I see it's 2 years later Johnny - hope all is well with you.
As an electronic technician i've always loved Nikola Tesla's work.
This video has made me so happy.
All the best Johnny and everybody else.
Thanks again.
ya what got me is 80 + wasn't making him happy lol
Great comment
Most wholesome comment I've read in a while.
Hope you're doing well Kay
@@ronaldwhittaker6327 maybe 100k is perfect
At that scale, he should have no problem hitting 200 k RPM. At those speeds, the rotor is so sensitive to balance that it must be balanced by spin polishing. It's the only way. It would also probably work better if he used air bearings.
You really made a great device from scratch and must give you my utmost respect. Job well done. 89k rpm at 50 psi is obscene fast. My shade tree advice would be, as far as balance goes, you need to do several things different. 1 weigh machined disc and spacer and they need to be very, very close to the same weight. Were talking 8 digits past the decimal point close, I say that because I saw you sand them by hand, use 5000 grit or higher and wet sand them with water. 2 no soft metals, use the strongest materials you can get your hands on so there is less flex, because at those high rpms, they will flex. 3 use a rectangular air inlet port to more evenly distribute the force to the disc's or they will definitely flex and create imbalance because most of the force is coming from the middle and right by the inlet, they are flexing and causing imbalance. 4 and probably everyone's biggest hurdle is don't have just one inlet, ideally, you want 4 to prevent parts flexing and causing harmonic imbalance. North, south, east and west. And because it's output is so high, you need 2 exhaust ports, again chasing that imbalance problem away. 5, you should try to make it a practical application. The idea was to turn heat into mechanical energy that could then be used to create electricity. I'm not crapping on you at all, what you did was magnificent. What I'm saying is you've made it very far, why not try and cross the finish line that Tesla didn't have the time or resources to try? To further your principal of your device, it needs to run on steam. Because in the long-run if you create a proper working model, we get free heat from the sun via heliostat farms. Where a field of parabolic mirrors shine the suns light to one tower and that light boils water and powers a steam turbine. Then you run off batteries at night. Normal turbines can only run at 80% efficiency, tesla turbines run at 97% efficiency but back then no one could make one big enough that it didn't destroy itself because of imbalance creating so much friction, it would get to hot and soft and explode. Tesla didn't have as good of machinery as you or access to titanium. Maybe they need lots of little tesla turbines and not one large one. A Tesla turbine doesn't start to reach 97% efficiency until they are going around 50k rpms, you've shattered that with a homemade, handmade device. If you come up with the balanced mechanical formula that can be replicated and you patent it, you'd change the world as we know it, you would have tesla turbines extracting energy from dams, powering airplanes, creating solar power. Who knows what else. Something to think about when trying to go to sleep at night. All the best.
Es un buen consejo y esa parte que mostraste la falla replicaba al otro lado
how you have this much time for commenting 😅😂
i thought it was at 30 psi not 50
There is one thing frustrating about these projects. Mechanically, they are beyond awesome, all the work required to craft such fine machinery. But the "97% efficiency" is PURE MOONSHINE. Tesla got 100HP "out of a hat" all right, but the amount of steam that "went into the hat" was insane. This is why bladed turbines are in common use. The problem is that it is difficult to measure the power input in the gas stream (you need pressure & volume flow-rate, & nobody measures flow rate). I would suspect that the efficiency of this is on the order of 5% TOPS, probably more like that of my model 1/8th scale steam engine: 1%. If 10W were coming out, more like 500W was going in. How do I know? ANY thermodynamic engine has an efficiency limited by the temperatures of the inlet & outlet streams. If this were fed with steam at 50PSIG, temperature is 150C or 423K. If exhaust is to atmosphere, exhaust temperature is 100C or 373K. Efficiency of PERFECT engine is (423-373)/423 = 18%. The problem with ANY turbine is that is doesn't work well until you get to megawatt output size.
I once got 75W out of a turbine (a little larger then this one, but much crappier in fabrication & design), but it was consuming more steam than my 1/8th scale 10 wheeler boiler could put out continuously!
By the way, DO NOT gear down the output to the generator. generator's output is proportional to the speed SQUARED. At 90KRPM, a small magnet chunk & a small coil will do it! (At these high speeds it is better to go "ironless" in the generator). The generator & the turbine should run on ONE set of bearings, spaced so the rotor is BETWEEN, not overhanging, the bearings, to keep the critical speed as high a possible. You should not hold this in hand while it is running! If it fails, you could be impaled by disk shrapnel bursting through the case.
@@bpark10001 in essence, 97% efficiency is an impossibility. you want to say that right?
What I'd like most of all is for someone to jump from recreating to practical applications and I think you are one of the few minds that actually could...
Bryant Fernquist pop it in your car lol
I learned recently that these are used in reverse, utilizing how it uses fluid dynamics to make sewage pumps, the big set back these generators have is the massive amounts of rpm it needs to be efficient, meaning alot of stress on the rotors, especially in larger scale
@@Spearmint22425 yep they are amazing for pumping a fluid with chunks because hard chunks will happily destroy most fluid pump but tesla pumps can pump chunky fluid no problem
Tools = Check
Money = Check
Space = Check
Profit from video making thus enabling ideas for builds = check
Mass audience to help = BONUS that comes with populiarity
Working mind = check
The work you put into this is just amazing. You didn't just make a working part. This is artistic work at its finest.
It's wonderful to see your work with so much attention to detail. Working on a 4-prong mechanical lathe with everything adjusted is only for differentiated professionals. I am a dentist, and I live in Brazil, in the city of Florianópolis. But I did a mechanical turning course in my teens and I miss them a lot. So seeing your work is inspiring
An absolutely beautiful piece of work, the clearance between the blades blew me away.
I can't even imagine the number of hours that went into this (don't tell me, it'll just make me feel bad about my own level of dedication to my projects ;) )
Being able to convert pressurized air into light is the essence of what makes engineering so great.
This is literal gods work. And we watch it on the internet. Such an amazing time to be alive
congratulations, is a pleasure to see how you go through the whole process.
Now I understand why you've not been uploading any videos for a while. Keep up the good work :)
Its ppl like your self that bring us to a new and ever growing future of clean and effective ways to live.
Just Amazing!
I am retired after many in a so called profession. I have watched every minute of your work and I am spellbound
Love this video it amazes me every time. Yes I’ve watched it over and over again.
A Fascinating Project, Real Dedication, Nicely Done.
Wow, really incredible patience and engineering. It's amazing to see what can be done at home!
As a mechanic in fine arts I'm very very impressed !! A masterpiece created by a master.
I take a deep bow 👍🏻👏🏻👏🏻
Simply beautiful. I loved every minute of watching this. Fantastic job.
Very cool, your craftsmanship is inspiring :D
copy ASAP !
that was stupendous!
one of the best times i've had watching a demo video.
extremely high quality production as well.
wow!
Valeu cara perfeito
Such workmanship. Just mesmerizing to the max.
great job....and great perseverance...congratulations and , thanks for inspire & motivate other people
Young man I think you will be a great engineer one day and change this world. You have the gift and ability. Great men endeavor to do good for the benefit of all!
Just wow. I love lathe work and tolerances on miniature machines. Your vids are brilliant to say the very least. I built a tiny jet motor compressor using similar techniques and size as your rotor. I never was able to spin it with fuel, but I regularly use a vacuum cleaner to spool it up and the sound was incredible. I will now go and binge watch the other vids u made. Thanks for uploading this set of videos. I love you're work mate.
Oooohh I like these three videos very much, thank you. You are the moving parts guy for when non-moving parts won't suffice, many applications apply for quite some time, more so in robots and drones.
Very high quality, fantastic work
I'm so glad you did not give up on it!
I love to see your work and this is what I wanted to see, ceramic bearings and an alternator! Brilliant design work and machining keep it up. I was a machinist prior to becoming disabled, so I'm living vicariously through you. I have so many ideas and suggestions of where I would like to see you go with this, but I am refraining. I'll wait in anticipation of your next video.
These videos of yours are the BEST on the site. I can't stop thinking about ways to try to use this in my applications!
Awesome! So much work.. Your machining skills are incredible
excellent job, i enjoyed all your presentation. This shows how people can achieve a perfect result with perseverance and diligence.
Incredible. What dedication and determination to make 5 of those rotor assemblies. Just wow. Fantastic work. BRAVO!
When you suspended it between the 2 magnets with the piece of glass, it made me so happy, I've never seen that before and its brilliant!
Many thanks for sharing your great job!
Totally amazing!!! You are truly a master craftsman.
A beautiful work of art, engineering, machining and patience. Thank You
I love your channel. Your designs are executed extremely well, and even when they fail, they never fail to amuse me. Great job, I hope you figure out a solution. Never stop innovating.
Respect to all the hard work and dedication that went into this!
Wow. I'm impressed. A lot! Amazing perfect work!!!
Disregard my comment from the last video, I see the testing is in part three. Phenomenal work. Very intricate and impressive.
Amazing innovation in the design! I've been watching your videos for a while and they just get better and better!
You did this song justice, good job! :D
Re-design the housing and internal rotor so the exhaust vents on both sides. If you look at some centrifugal pumps they do this as well. It'll remove the lateral thrust loading from the flow going to only one side, as it'll be balanced out.
The drawings I've seen of the tesla turbine show exactly that...dual exhaust flow
You are without question, a very tenacious engineer, and I truly admire your diligence .. .
Congratulations your patience & attention to detail are extremely hi level can’t wait to see what you make next 👍😊
3:21 It sound just like VTEC Just Kicked In Yo!
Akasaka Verrian Moog, log in please
Рэй Чехов What Do you mean ?
It sounds like a train is beginning to move xD
actually idk where you're at but where i'm at it sounds like a musical scale
www.tagesanzeiger.ch/zuerich/stadt/Die-singende-Lok-vom-Hauptbahnhof/story/26730664
The tone comes from the electronic power converters (ac of the railway lines to dc for the train)
Akasaka Verrian ye dingus did it before me
im happy that you made this happend all this effort testing materials its just amazing to see end product of your hands congratulations stay awesome 😎
Thanks man!
***** u welcome o and can the rotor be dynamically balanced like compressor wheel for turbo that would bring prenformance spec way up 💪
You are a master! Watching the machining in the last vids was mesmerizing.. . Thanks!
love everything about this project, video, music, great job man!
what do u do for living?, what did u major in?
I dont know how I even got to this kind of videos but all these look so interesting, nice work!
I love this video. the turbine, and the music is awesome. Cheers mate.
The sound it makes (not the imbalanced portion) is simply incredible! Excellent work!
Amazing project and great workmanship, very good art.
wow...one fantastic video with a fantastic song(the fatrat-xenohenesis)
awsome vid really nice edeting and music like!
Very impressive project and....AND.... truly amazing videography ...... every detail well lighted and clear....WELL DONE!
You have skills that's for sure! Your concept, design through to fabrication is amazing. I'm hooked now :)
obviously youre not married. Just kidding. fascinating group of videos. totally enjoyed the pursuit of perfection. Watching the lathe was mesmerizing. your video expertise and volume of background music was unparalleled. Wish more people on you tube would understand that. Thank you for an entertaining and brilliant show of craftsmanship.
I was wondering if you had tried Dry Nitrogen instead of compressed air. The compressed air (unless it has been run through a drier)will
contain moisture that might possibly be part of the imbalance problem. Just a thought.
Maybe it's a stupid question, but won't the nitrogen drop the temperature and condense more moisture out of the air?
@@salaciousBastard It would just be compressed nitrogen gas from a bottle, basically the same as air (which is mostly nitrogen), it just doesn't have water as it's been removed. There is a cooling using either one because of the pressure drop, which might cause condensation from the surrounding air to form, but that is at the outlet.
That was awsome. Couldn't stop watching. What a great series of videos.
INCREDIBLE! I absolutely love your craftsmanship!!!
With speeds that high, a minute imbalance is enough to make the whole thing vibrate... a very delicate and hard build for sure.
i would love to see this at full balanced speed
I believe the imbalance is caused by the sanding process what do you think?
@@MatheusHenrique-gn8nq the cause for the imbalance is not quite sure.
It could be due to manufacturing tolerances (soldering, material) or even the inlet flow itself (turbulences, twist) leading to slightly bending the "blades".
snap rings?
Wonderfull work ;)
Thank you!
This is the coolest thing I have ever seen anyone make! Thank you!
I love this precision! For what ever it is needed....I love it!
Lots of thinking before going to sleep i bet
I wonder if it could be used as a small turbo for my bike? ;-)
Great work!
Badass! A lot of determination creative genius and skill. I loved watching the series, it inspired me! Thanks for making the videos!
Awesome build man! I was very entertained and learned a lot from watching you do this!
Top 10 amigo
well done, magnificent ! I wonder how can it be turned in a 5 to 10 KW wind powered source. It would be a great benefit for a lot of people all around the world, not mentioning the name of TESLA as legacy! However, laser cut would improve the titanic work you've done...
masterclass right there people....truly inspiring to watch engineering at its highest level...thankyou for sharing
Keep up the videos man. You give me some inspiration every time I see a video.
Hey u showed make a website and sell these because I would totally get one, these are awesome, keep up the good work👍
Should*
Midnitejmpr Gaming - agreed. i would buy quite a few
@@nicksmith6629 why do you need them ?
you could use them in micro solar steam generators.
I bet it's very expensive considering the engineering time and workmanship put into making it.
Nice. Maybe try running the turbine in a vacuum box for a higher rpm?
Since regular turbine blades have trouble operating pass the speed of sound(complexity).
really in a vacuum? he is supposed to use high air pressure to make them work how is he going to do that in a vacuum?
@@vicnie1
there would still be high pressure going in , it would effectively be higher because there would be lower pressure at the outlet , not sure if it would affect sound though as the air coming in would make sound :-)
only at the tips of the blades - same as a chopper.
Superb piece of engineering. I admire your tenacity!
WOW, what a credit to you for your engineering prowess..beautiful work..
Why am I seeing this only after 4 years? What is RUclips algo doing?
Can it be used in high powered rc planes as a separate air compressor for especially for turbine engines
Yes, it can be used as a compressor even to the point of liquifying the oxygen as it reaches the exhaust port, it is a matter of providing the right motor and power supply, and spacing/sizing the plates up correctly for that specific application.
Alex Johnson thx
amazing build! the sound is awesome! well done!
Someone please give this person a medal 👏👏👏 his work is really appreciative and I did subscribe and like.
Hey Johnny, have you ever had any catastrophic failures of your rotors/turbines?
I actually had one with this, where the brass back plate was detached from the shaft at high rpm when it was tested. I think it was the third one.
When I saw that rotor suspended in a magnetic field, my inner Jesse Pinkman got through (loudly so)
great videos
i though i was the only one
So amazing! Thanks for posting this, it's been a while since the last video.
I'll say one thing Johnny, you demonstrate more patience than I will ever be able to muster. Nice work sir...
You might have reached a limit on what your materials can withstand I believe your vibration issues are from material creep. To make a more balanced one you could use titanium or nickel superalloys to make the turbine this would limit the material creep
Titanium would be ideal, but since I wanted to use solder for the joints it wouldn't be possible for this material.
+johnnyq90 that is the problem
+johnnyq90 you may find that even if you use balancing machines you will still get the problems
+johnnyq90 what material are you using at the moment
+johnnyq90 I'm going to have a look into it do you have an email I can send my findings to
Ah sweet, a turbo for my Honda! 89,000 RPM? That'll crush Lambos no problem
AND it even has VTEC! 3:20
Ah the Honda vtec jokes, as old as youtube and as lame as facebook.
Jack Duno you skrub
Not in a bad way
i don't have the slightest idea how this works, but watching you make it through the three vids was mesmerizing. You are a great craftsman. great backing tracks too.
Basically it harnesses the power of friction between the air and rotor discs to spin. The discs are layered to pack more surface area into a smaller apace.
this is one of the coolest channels johnny!!! I love these little engine build/mods!!!!!!!!
At the risk of sounding arrogant, could the imbalance have been caused by finger grease?
I agree. With the speeds involved, I think almost anything can cause vibration. Maybe a wax n grease dip mite be helpful to his turbine. But how nice was it seeing him build it and spool to 80000 rpm.
Needs computer dynamic balancing.
Static bal isnt enough
Yeah, fully agree also......but at the rpm's the rotor spins, a wax n grease remover will go a long way too.
It could be anything. There may be a little too much solder on one side of the rotor.
This... is... beautiful... How much for one ?
Its priceless haha
Just amazing how you work and 5th generation is awesome!
Great video! I've been waiting a while to see the conclusion to this build.
Its really cool and innovative, but what function will it serve? What will it be used for?
I agree. I would like to see this project utilized in a practical manner. For example as you stated running steam through it collecting the steam condensing it boiling again and an alternate connected to the turbine. But overall I love his design and manufacturing.
It swerves two functions, the mostly efficient pump in the world, or the most efficient turbine. Either can be used in practically infinite ways.
It's a pocket sized turbine... What do you want it to do, stir your tea?
Really? You can't think past a snarky comment? How about a pocket size generator with ceramic bearings equally efficient? For me, it is too well engineered and machined to be just a toy. I would like to see it taken as far as it can be whether it be powered by steam and the water recycled making it sustainable, or simply powered by air and proven as a source of power generation that could be scaled up. I'm a former engineer that's lost the use of my hands so I live vicariously through others. If all people wanna make are toys so be it.
Nothing this guy does serves any purpose it seems. I keep thinking the exact same thing when I see his time sinks. I'd rather punch myself in the dick. It serves as less of a purpose and costs me nothing.
the imbalanced rotor sounds way cooler tho ;)
your profile pic is amazing
*V T E C*
I'm not convinced it IS an I'm balance. I saw another video explaining that's the point the airflow synced with the vortex and there was actually a 20K RPM jump after that point. It was a YTEngineer video on Teslsa turbine.
and here i am getting frustrated about a crappy soldering iron and though i had it bad... amazing that you pulled it through
Found It just now I it’s absolutely awesome!!!
Was definitely worth stopping everything else and watch all parts of it :D
Is it just me? I can't click on the videos in the outro
same for me
i think he forgot to put the links there ;)
I just fixed it guys! Thanks!
Are Tesla turbines used at all in products or industry today?
There are a few companie who build them as turbines, but mostly they are used as pumps.
Not much since those are not that efficient compared to traditional turbines. Teslas were used much more often for some time after they were invented but soon we understood enough about flow of fluids to make really efficient bladed turbines that are superior to teslas.
They can still be used in some cheap, non-demanding applications today. And also as an interesting project like Johnny did here.
What do you mean? Tesla managed to make turbines which had almost 100% efficiency... The problem is that they're more costly to make as they need to be extremely precisely made with the best materials possible, and because of that, most companies ditch them as they can just make cheaper pumps which aren't as efficient, but nobody seems to care.
Yeah, no. That didn't happen. Tesla's turbines were very efficient compared to other turbines available at this time but not very efficient overall. There's simply no use comparing Tesla's to modern bladed turbines which are superior in efficiency and performance.
I remember seeing a portable Russian APU used for missile launching somewhere on the internet. Perhaps you can find it through google.
Dude... ¡you´re an artist! - congratulations. It´s a pleasure see your work. Grettings from Argentina
Thanks for the sound warning, I usually mute all your videos due to the same hideous six seconds of free music played incredibly loud on loop.
А мне приятно было засыпать под это видео,сверлит,токорит,в общем кайф,такое ощущение как будто тебя создают или ремонтируют,привет вам из России брат!