Micro Tesla Turbine Power Test
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- Опубліковано 12 вер 2024
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Doing some power testing on the micro Tesla turbine that I made in the previous video. The motor that I used as generator, is probably not the most suitable for this purpose, a more efficient one could have given much better results. I'm thinking that a faulhaber brushless DC motor would be perfect for this. The goal is to produce the power that is being currently produced at 60psi to be produced at 30psi or even lower. Also any suggestions on how to improve the Tesla turbine itself, are very welcomed! Special thanks to Tesla Tech who helped me with these upgrades.
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Use the tachometer on the large gear and get and multiply by 3 to get an estimate of the rpm on the turbine.
+William Delaire Agreed! If the ratio is exactly 3:1, it would be exact rpm, not an estimate. Except it would be under load, of course.
+Pat Sullivan I would prefer under load circumstances anyways , can anyone here give me a reason not to do a 1:3 ratio though? seems like torque isn't an issue here.
+Ceal Losaria The setup that you see on the video is the best configuration that could be made out of the stuff that I had laying around. I did a test with direct coupling and the performace was lower than the geared configuration. Also the turbine was strugling to get the generator to speed.
+johnnyq90 I would assume that the turbine has a optimal pressure yes? is it 30 psi? and if so I'm really interested at how different liquids would interact with it. like steam yada yada
+johnnyq90 I really gotta say I'm transfixed at how well it sounds I wish I could show you how scalar it is audacity . I don't understand why changing the ratio made it struggle to get to speed but I would like to know how to maximize the potential of a motor like that, the concept it awesome and seems more effective than even those pelton wheels in the dentist drills. if you were to hook a set of these turbines up in series what happens?
"A" in hexadecimal is 10, so it looks like the tach can correctly display 100,000 rpm
impressive analysis, but later on it displays an L which is not an hexadecimal digit, invalidating that theory.
+Miguel Not necessarily. What hexadecimal character comes after "A"? And if you tried to display that character on a 7-segment display, what number would it look identical to? So perhaps "L" is used as a substitute for "B" because "B" would be confused with "8". Why did they choose "L"? Perhaps because it sounds like the number it represents, "eleven"?
probably, but normally a B is displayed with a b so we don't make this confusion.
Miguel it is obsessed with all caps!
Jason Pepas hi, checked the manual, it says it reads up to 99,999 only
Hey!! I have some good news about these DT-2234C+ laser tachometers... you might want to write this down and make a "cheat sheet" to put on the back of it. They don't really "give up" at higher speeds than 100,000 RPM... you actually have 150,000 RPM capability! (and possibly a little more)
(For anyone wondering how I determined this, I used a pulse / signal generator to "blink" a super-bright red LED, shone it into the tachometer lens, and tested the readout accuracy with a frequency counter, multiplying the pulse frequency (in Hz - based on seconds) by 60 to get RPM (minute base).
At/above 100,000 RPM the first digit will show what seems like a "nonsense" character... but in reality the tachometer still works fine, it's just that this character needs the following interpretation chart (replace the 'odd' first digit as shown below):
"A" = 10 (100,000 to 109,999 RPM)
"L" = 11 (110,000 to 119,999 RPM)
"u" = 12 (120,000 to 129,999 RPM)
"P" = 13 (130,000 to 139,999 RPM)
"d" = 14 (140,000 to 149,999 RPM)
"n" = 15 (150,000 to 159,999 RPM)
Above 159,999 RPM it gets a little unpredictable... because... at 160,000 RPM the first digit goes blank (" ") at which point it starts counting from "0" again... so that 100 = 160,100; 1568 = 161,568; 7001 = 167,001; 9999 = 169,999 RPM
After 169,999 RPM the first digit goes to an "8", and the "BATT" indicator comes on. However, it stays this way for everything upwards of there (170k, 180k, etc)... so I'm calling my last "predictable" highest RPM reading to be "n9999" - which is 159,999 RPM.
ALSO... I wonder if a better match for a motor/generator would be an in-runner, not an out-runner. Out-runners are optimized for more torque and lower RPM, inrunners are higher RPM, lower torque - which is what your turbine is. Maybe something with a Power rating of 100W or more would help. I think maybe your motor has too thin wire gauge to pull a heavy load like that 10W lamp on one phase.
Using just one Phase of the motor/generator will result in very low efficiency. Rectify the 3 phases (6 diodes), then use a light a bulb. Adding a capacitor would help a little, but 3-phase power is already very smooth, so for this kind of experiment it won't help much.
ALSO, ALSO... With all of the different sizes of these that you've made, it would be rather interesting to see a sequential turbine array... each with a generator... to see what the combined power would be.
Thank you for taking the time to make such an informative comment. Have a nice day!
*blinks*
Oh snap
so in other words, the turbine was running between 108775 and 118775 rpm?
U have really big brain
my dentist will love it
Leandro Lopes Pereira hahahhahahha nice loool
EPIC COMMENT!
what's an dentist??
What's a UA-cam?
Dentist will cut head off with this thing
Great job Johnny, keep up the good work and off course all new development.
Always a pleasure to watch your channel
Tesla was asked out of all his inventions, which was his favorite.
He said," my turbine".
Beautiful sound, no hard vibrations, fantastic job.
Btw when your tachometer reads A9066, it isn't giving up, it's displaying the rpm in hexadecimal. So it's at 109066 rpm
Good going ,I've watched your work for years ,and you are advancing in leaps and bounds !!
I like what you are doing and encourage you to continue. You need to quantify the SCFM of compressed air that you are driving your turbine with. If you get 1 amp at 12 volts you are generating 12 watts of power. The SCFM and air pressure will define your input power. Track this info then as you make improvements to your turbine you can express those improvements in terms of increased efficiency. You are doing fantastic work !!
you should be using a 3 phase DC rectifier to get the full output from the motor.
yup. i hope he will do that. i bet he will get around 3-5w more from the generator if he will use all the phases.
+Ben Simms Should use all 3 phases (3 bulbs), but using a rectifier would only help if the AC voltage is 10x the diode forward voltage... otherwise too much Voltage will be lost in the rectifier. Using a schottky diode bridge would help a lot... so would knowing what Load impedance the motor he's using requires to get best Power output. If it's a motor rated for 7.2V operation, the load should allow the Voltage to be at least double that.
With a 3-phase bridge diode setup (and a large electrolytic capacitor as a DC filter), you can change the load resistance to do comparative tests for maximizing output DC Power. I found that allowing for 2-4 times the rated running voltage gives best output power when generating versus motoring.
Love this guys' builds though! I'd like to see a video showing alllllll of his projects gathered together!
the forward voltage in a rectifier couses no loses u just have to lower the impendance of your load to get more current on the lower voltage ;)
But the loses in the wire will increase :(
Sorry, but you are incorrect. Diode forward-bias voltage drop is a "loss", and is significant if the rectified voltage is not much higher than the diode drop. Every diode in a silicone bridge rectifier drops 0.7 up to 1.0V per diode, depending on the load impedance. In the video he showed about 3.5V AC, which would only result in maybe 2.0 to 2.5V DC at the load. Every diode has in its specification "Vf"which is the Forward Biased Voltage Drop. This Voltage is "lost" between the Source and the Load, and turns into heat as a result of Vf * Current.
Let's say you have a 3V power source, flowing through a Diode to a Load.
If you have 2 Amps flowing through the diode to the Load, and the diode has a Vf of 1.0V, then you have 2 Watts being lost in that diode.
Why don't generating some psi from 20 gallon water tank 10 meter high above to drive this micro-tesla-turbine to see how much electricity?
Dude you are a Genius...
will this fit in my honda?
KhemDawg MCM!
KhemDawg but this has no VTEC.
KhemDawg rice! rice! baby yeaaahhh ↘↘↙⬆⬇
Yes
Man…. I’m working on my 10 in Tesla turbine… but gott dang I couldn’t imagine having to be so accurate in such a a small space on all those holes that you’ve made. Well done. I will at you are the only one on the inter webs that I can find that’s using s tight of disc spacing. It’s sooo critical for these smaller Turbine.
Have you thought of using a flywheel to store some of that rotational mass when the load on the generator changes. With the right weight flywheel you might be able to use pulses of air to keep the rpm up while pulling an electrical load. I'm impressed with your work.
Most of us had Mr.L
i want to see the thermals of that thing running at 40psi.
If you're getting 9.5 watts how many watts of air are you putting through it? Just wondering what its efficiency is
That is very impressive! 10Watts at very reasonable pressures. Will it work on steam? e.g. survive the heat and moisture? Can a campfire steam generator be made to generate enough steam to produce those 10 watts?
+James Newton I guess it would, and much better than air.
+johnnyq90 Wouldn't that be a cool thing to demonstrate? People could make them for camping, survival, off grid power, etc...
+James Newton I agree, but the boiler needs a lot of development in order to be efficient and do some useful work.
+johnnyq90 I'm fascinated by the flash boiler in the Doble Steam cars. See Jay Leo's videos on the subject. I've been fortunate enough to be around a replica car which was being built by a guy in Oregon, and the boiler is NOT heavy at all. Doble put years of research into that boiler, and using it as a starting point would be wise. Kimmel is a good source for information:
www.kimmelsteam.com/
for example (not a Doble, but nice plans)
www.kimmelsteam.com/docs/Bolsover%20Water%20Tube%20Boiler%20Fig%20A-F%20and%20discriptions-web.pdf
+James Newton Thank you for your interest, I really appreciate it.
Good to see always improving
Why your subs are not in millions just why your content is so professional bro you deserve billions of subs
Have you calculated the efficiencies for the tested cases? With the flow rate from the air gun that would be very intersting to calculate.. if you have the nozzle diameter an estimation for the airflow could be made at the given pressure.
Also how have you determined the relationship between disc diameter and gap width?
Interesting project!
Damn, this is a neat little device, and holy crap, over 100,000RPM no load? Pretty damn fast, I say.
You should definitely try to build a bigger version of this, maybe with more than one in take for more torque?
+Jordan O'C (Xenro66) Yes, I'm actually thinking of a bigger version...
***** You should definitely do it!
+Jordan O'C (Xenro66) I agree
+johnnyq90 How big can Tesla Turbines get before scalability becomes a problem? I heard the main issue with them is that they don't scale well into large sizes.
一
sick fuarkin video! the music and layout was awesome.
Really nice crafted tiny Tesla turbine...^^
Some words about pressure and speed of a current of air:
The excessive pressure 30 PSI - 2 bars - won't allow to receive speed higher than a speed of a sound with an atmospheric pressure on an exhaust (taking into account real losses in a snivel). Increasing pressure to 45 and 60 PSI only the mass consumption of air, but not speed increases. But if to use extending over a sound nozzle, it is possible to increase considerably the speed of a current of air without significant increase in a mass expense. But with increase in speed of a current of air working turns of the turbine - and it in this case not will increase and it is good because there will be problems with bearings, the rotor unbalance will strongly affect. On the other hand the power and efficiency - considerably will increase.
+Tesla Tech I think you are saying that 30psi was enough to get the maximum air velocity out of the nozzle, increasing the pressure only increased the mass of air being forced through it rather than its velocity (because air was coming thru still under some pressure). If all the pressure was turned into velocity then the speed of the air would have exceeded the speed of sound. Although there are problems with this, the efficiency of the turbine goes up a lot... because it responds to equation KE= 1/2mv2...... keep mass of air the same, but double velocity and you get 4 times the energy from the turbine. When you doubled the pressure you got double (or less) of the mass, therefore you got higher performance, but if you changed the nozzle geometry to a de-laval type which maximizes velocity then perhaps you would have got much more. Is that right TT?
+Julian Wilson Extending over a sound nozzle is and there is Laval's nozzle. But for achievement over sound speed pressure before a nozzle has to be above critical pressure. For air - it is more than 2 bars. If pressure is less, or equally in 2 bars (if to be precise - 1,8 bars), even when using a nozzle of Laval you will not be able to reach over sound speed. The right decision - to use Laval's nozzle and over a sound stream. But only in that case when there are air sources with high pressure, namely 40-60 PSI and more.
+Tesla Tech OK. I think I get it: To get more than Mach 1 needs 40-60psi for air with a Laval nozzle? Would you have dimensions for such a nozzle?
+Julian Wilson nasa uses it just wikipedia it
+Julian Wilson The concrete sizes and form of a nozzle are projected proceeding from necessary mass flow, like a working body and some other conditions. It is also necessary to specify when I speak about pressure 40-60 PSI - I mean an absolute value, but not excess it is important.
it's amazingly well built. awesome work. I would attempt to replicate if I had that skill set and equipment.
+Jeff Austin Thank you!
+johnnyq90 oh k... now what does the turbines look like in your Pneumatic motor. hmm?!?... OR did you even billed that thing.
you are a Master to build these parts .
Great Job , congratulations!!!!
Verry cool turbine. Excelent work.
One tip regarding the bldc as a generator:
You will get much more out of your motor if you use a 3 phase Rectifier to convert your three phase AC into DC. Can simply be built out of 6 diods.
Also you could use a motor with a lower kv Rating to get more voltage at lower rpm. I easily lit a 21W 12V Bulb hooked to a CF2822 Brushles via a 3 phase rectifier made from 6 diods. The motor was spun by a dremel working not even close to full power.
I'm thinking of using a Faulhaber brushless dc motor for this application. Much smoother and more efficient.
Actually I don't know much about Faulhaber other than they are expensive. But efficiency allways sounds good.
Anyways you should really think about trying the rectifier. Because if I'm right by connecting 2 phases you only use a third of the power that the motor could produce, so the Faulhaber will as well struggle to put out good power.
Ahaha nice! Audio out behind the brushless motor! Best use of a pci bracket!
WoooooW mann!!! congratulations!!!! you´re the master of air machinery!!!! i can´t believe that a tiny generator could load almost 10 W of energy!!! amazing!!!!!!
the sound is sooo awesome
Second speed test went to "L3474" which equals 113474rpm and I think he backed off before max rpm. Critical torque velocity where vortices and turbulence threshold can be noted at around 50000rpm where there is a sudden increase in rotational acceleration. Epic demonstration.
АБЗАЦ Я ПРОСТО ОХРЕНЕВАЮ ОТ ТАКИХ РАЗРАБОТОК В ДОМАШНИХ УСЛОВИЯ!!!!!! :))))))))
БОЛЬШОЕ СПАСИБО ЗА РЕАЛИЗАЦИЮ ТУРБО-ИДЕИ!!!!
1:50 this guy will get your cavities filled in for you
If you build this 10 times bigger, is the power generated proportional or exponential?
Robert Artenie I dont know, but the noise sure.
Lovely build. What air compressor are you using and how many watts does it use at 45PSI ? I think the turbine is around 98% efficient in it's original design.
that is one of the most beautiful things I've ever seen!
That's impressive! 11 volts and almost a full amp...more than enough to be lethal.
switch the gears around the large gear should be the drive gear and small on the generator.. would be a much better output, I'm assuming the turbine can handle the extra load without being torqued down too much
You've got an asymmetrical load on thet brushless motor. It outputs 3 phase AC current when spinned - so if you used 3 bulbs connected in triangle between each pair of phases it would work much better
1:35 when VTEC kicks in
This is fantastic well done.
YES ! Power testing ! Thank you.
Stick some propellers on it...
No but for real imagine using the input hose as an intake and connecting the turbine to a prop shaft, could possibly create a neat little afterburner for an RC plane
Esse cara e um GÊNIO !!!
com certeza!
I'm still more interested in the output compression, being spun by an electric motor or a turbo-like design with compression spinning it up.
Do you machine these components yourself on a lathe?
Very, very good.
The sound of precision.
For a layman.....how can you describe the advantages of this? Is this opensource? Can we use water/any other fluid (which one will be the best) as input to generate electricity,if yes then what should be the flow rate of water and how much electricity it can produce? Can we use it in reverse? As a pump? At this speed what will be the life of the turbine? The stuff will worn out quickly, right? What will be the diff of energy input vs output? Is it efficent than existing systems? If yes why not engineers use it already?
I didn't see it in this micro model, but the true genuis and power behind his turbine is the muliple layers. These increase surface area which the air contacts. With several more internal layers, it would power through more resistance with less effort. It would drop so much with thre resistance of the wood. It also would take less psi to achieve the same wattage. Just sharing to the sake of growing knowledge for the benefit of us all.
This sounds amazing!
Please music name
Remember voltage shown is incorrect of what is generated as this motor is actually generating a three-phase voltage.
what would happen if you use this as a PC fan
not much, the turbine wouldn't be able to keep those high speeds, and also the raw pressured air would be better to cool the pc than putting it through a turbine to power a fan. (yup, I'm fun at parties.)
though, a 10W fan can get something like 100CFM;2mmH2O which would be not bad, but still, unless you power the turbine with hot air, the raw input would be better.
@@satibel I know I'm late but can I hire you for party's
666 likes and 6 dislikes: Seems that someone is trying to contact us..
Gadget Lumic
What if you compare tesla and regular turbines of similar sizes? Like max torque, rpm and air consumption? Also have you thought about making a multi-stage turbine?
Don't take my word for granted, bit I think at this scale Tesla wins.
i LOVE your machine work, (Soldering too!) so, is this something like the turbines used to make electricity in power plants? i.e. Tesla? Thanks for posting.
Tesla turbines were created by Tesla to replace conventional fan blade type turbines in hydroelectric plants. They work in theory and efficiency. But when you make a big one, they become very heavy, and the disks can distort and warp. That's why they're not using them I think
Tesla turbines were created by Tesla to replace conventional fan blade type turbines in hydroelectric plants. They work in theory and efficiency. But when you make a big one, they become very heavy, and the disks can distort and warp. That's why they're not using them I think
IT'S OVER NINETY NINE THOUSAND, NINE HUNDRED AND NINETY NINE!
If my understanding of a tesla turbine is correct, it gets most efficient once it hits a certain rpm. Maybe there is a way to spool it up an then gradually hook loads to it, so it doesn't leave that sweet-spot?
You soldering those 2 wires off the brushless motor causes extra resistance. Even the small amount of voltage produced by spinning a brushless motor by hand causes extra resistance
u can check the new speed if you connect it to freewheel with 1/5 or smth like that and check the speed of the bigger wheel
You have great machining skills..
Try a low kv motor. You will get higher voltage output, might be more versatile than the voltage you're getting. Better yet, take off the windings and rewind it yourself, that way you can choose your own kv . Usually, you can make the motor/generator more efficient by using a single strand instead of many smaller parallel strands that the factory uses. A thicker single strand can handle more current and can fill the stator slots much better than parallel strands.
Tacho didn't give up bro. Your observation did.
Very Cool!
Wow that is impressive bro
Neat device! I'd love to see air being "pulled" through it into a vacuum instead of "pushed" through by a compressor. A steam vacuum like the ones that can implode oil drums and industrial tanks would draw pretty massive force through the turbine as the pressure differential attempted to equalize itself... (in my mind at least.) Also, I'd like to make a fractal Tesla valvular conduit from a thermally conductive material and draw air through it in the same fashion to see if heat could be generated from the vortices generated within. Sadly, I have neither the technical expertise nor the equipment to do it myself. I'm saving up for the day when I do (:
Hey, try a Hilsh Vortex tube. Maxwell's Demond at work. Hot / Cold from compressed air.
Germans came up with it in WW2.
You're damn good man, the stuff looks awesome! I was curious though, do you have any measurements on how much power you were putting in (via the compressor) vs how much you got out of it. How long could you the turbine before you didn't have enough air to adequately produce reasonable voltage to keep the light lite. As in, how long until the light would reach a level you'd consider to be too dim for acceptable use.
great job, I hope you also make the Tesla Dynamo Electric machine a reality someday!!
At those speeds... perhaps you should try friction stir welding?
can you do a video on how to make a mini jet engine
Very good job, congratulations.....
The rpms are crazy! Sounds like it ran good under 30psi
Is your turbine reversible ? Did you test it as a compressor ? I am curious about the maximum pressure it will reach if you drive it with an electric motor. You can for instance directly connect a pressure sensor at the output to measure the max pressure it can feed a close volume.
Tesla was a great scientist 👍👍
you are my hero
Awesome videos. I'm sure it's been thought of already, but I think a practical use for one of your machines would be add a gear box and chuck to replace your lathe mounted Dremel.
I though of this already, but I don't think it would have enough power to do the job. It would be very cool for sure.
I wonder if tesla turbines are ever used in air-powered shop tools. Seems like it'd make a pretty amazing drill.
Классно. Таким образом можно сделать передачу на колёса вместо коробки передач
Well done brother. Please keep up your excellent work. I love the very high rev's. What would happen if a larger one was made?
+Adam Allen I guess better torque, but I'm insisting to improve it on this scale so I could use it as a portable device like a tool for instance.
If the turbine works by the drag of the air on the disks surface, would have a rougher texture give more "traction" to the air, or is the molecular stickyness of the air the determining factor at these speeds?
I see your point, and it does make since. But like anything, the more traction it has, eventually there's a resistance that comes from that traction. Where this likes high rpm I'd think you want a pretty good surface finish
Have you concidered using an axial flux generator? Such as a lower RPM generator with large coils and using a gear ratio to match the ideal speeds for the maximum power output of the generator. Your turbine looks extremely efficient, an different generator should produce better results.
Thank you!!
I always thought the edges of the discs instead of being square like they are currently in most designs should be sharp. This way as the air stream enters the space between the turbine discs it is aerodynamically sliced between them instead of hitting a square wall which must surly create inefficiency's. The problem with the Tesla turbine is its only really efficient when the outside of the disk is spinning at almost the same speed as the incoming air. But to do this it has to have almost no load. So as soon as you try to get power the disc speed slows and the number of spirals the air takes to the center decreases as the slippage on the discs increases. Hero's turbine while crude has the potential to be made very efficient if reengineered drastically. By having the gas stream push the rotor round on the outside with nozzles it gains efficiency the faster it goes. If it rotates fast enough so the nozzles on the outside of the rota are spinning at the same speed the gas escapes from them then it will be at its most efficient. But as its pushed by the mass reaction then it will still retain all its torque potential unlike the Tesla turbine. See rocket traveling in atmosphere efficiency for more details on why this is. Basically a rocket flying through the atmosphere is at its most efficient when its traveling at the same speed as the gas leaving through the rocket nozzle. If it goes faster or slower (And it can go faster as its a pushing against the mass it brought with it.) it is not as efficient as it waists energy blowing the air around it about instead of driving the rocket forward. And a rocket traveling at that speed is one of the most efficient machines to utilise heat differential in existence. Its just a shame that rockets only travel at that speed for a short time so overall they are not that efficient in practical reality. But a turbine can spin at one speed all the time so the same principal can apply and in theory be very efficient. If it doesn't fly to pieces. Note the speed the gas leaves the nozzle is dependent on its temperature. (Assuming you are using the same gas. Different gasses travel at different speeds.) Its the speed of sound in the gas that makes the difference and that is largely changed by temperature. So cold air will not work efficiently at the same rpm in this turbine as hot steam. Just some ideas.
use oscilloscope to measure higher than 100k rpms and add more blades(discs) to increase torque and be able to change gear ratio(probably)
nice work by the way
Very interesting. Why don't you integrate permanent magnet disks around the center of the bladed turbine wheel and let them act on a stator coil set to have no extra generator outside. You can close the bladed turbine hermatically and provide the expansion power electrically.
I was thinking the same thing. That would reduce power lost in the gear system. A flywheel ( or one on each side ) with the magnets built in, on the same axle and you could have stators on both sides of magnets, crossing one side then the other to even there pull,
Do you think you could build two of them, so you could have one take the air pressure that builds up from the first one to double back on itself to feed?
If the exaust tube was placed on a thin space between the diameter and the discs was with a design like a cooler or may be only like a micro saw disc, the performance i think will be much better. It's only an idea!
How about a rim driven propeller version? Or would this just be a silly, inefficient conversion of air flow to mechanical and back?
View the power output of the turbine as a measure NOT of the turbine efficiency but the nozzle efficiency. More power = better nozzle. Turn more of the air pressure into air velocity. At present, the turbine spins at 100,000 rpm- say its effective diameter is 16mm then the circumference is about 50mm. At 100,000 rpm this is 5000m per minute or about 190mph. If at maximum power the rotor spins at half the air speed then the air should be moving at about 400mph. There is probably scope to double the power output without the nozzle being supersonic. What is the theoretical max air speed you can get from the pressure you are using? How efficient is the present nozzle? Reduce the friction, heat and turbulence of the nozzle with improved design and geometry and this should increase the airspeed towards a practical maximum. Once you have an efficient nozzle then turn to optimize the rotor to extract as much power from it as possible (rotor spacing, design, exhaust, bearings, reduction gear and generator... if you want electricity).
with the RPM's this produces, it would make a bad aSs RC AIRPLANE motor. A small air-soft gun tank could be used for propulsion management. you would only need a minimal psi to turn a prop to 15-20000 rpm using direct or 2:1 drive.
2,900kv motor as the generator? Is that a typo or is it really possible to have a 2,900kv motor that size ?
Wow awesome!
How about a micro turbocharger that could power a mini ICE.
You need an airflow meter (or any mean to mesure the flowrate) to mesure the power input of this system... you know you have 30psi(ish) at the turbine input multiply that by the air flowrate and you'll have the power inpout (after conversion to the metric system of course :p)
now complete the whole tesla gas engine and add a pulsejet as the input. Note extrapoints for also using the valvular conduit
I think next you should build a dynometer for these things. Even if you can't calibrate it, it will give you a relative measure of the progress you are making.
the one from ave is a little large but gearing it down would be mathematically possible right?
+Ceal Losaria Depends on how large, and at any rate, a simple dynometer could be just the generator he already has, with a bank of bulbs to switch in or out to vary the load.
+Pat Sullivan heh I'll fetch a link I wouldn't want to account for loss in current transfer
What was the rpm at 30psi while the generator is under load.
The electric generator, generating 6v at .59 amps is equivalent to 0.00363 (hp) @ 90% efficiency. You have a 3:1 gear ratio. Horsepower x 3 = .01089 (hp) at the turbine.