People had cone-disk Tesla turbines at least as far back as the 80s, but they're all at least a little different.

That tickled me 😄

2024 👀👀 😅

This could be very last time patents being violated ☝️😂

​@@weedfreer yes he forgot he is a time traveler 😉

Hi Tommy do you have any videos you could share?

Tommy, if you need access to a 3D printer, please let me know. I am in Edinburgh and will gladly help with projects that aid in these wonderful ways of producing localized power sources.

@@michaelmarino7216 thanks for the offer, but I live in Texas. I don't mind describing my design if you would like. It is nothing more than a Darwin wind catcher and a tesla turbine. I've just used items I had from around my house, as parts. 2 78rpm records for the magnets. 8 CDs for the turbine. balls attached to the ends of the shaft for my air bearings. A funnel connects the two housing together.

@@Jon-fs2zj not at the moment. I'm still putting together my second prototype after the first one caught on fire, and that was with an 8mph wind. I described my design to Michael Marino if you want to take a look at it. I found that you have to use a chimney flue concept to regulate the out flow of the air to prevent it from running away and catching on fire.

It would be interesting to see if a more well space disc set would work well for water generating purposes then, given the much larger viscosity

Hello Robert, I just got a tele_gram me message from you. Can you tell if it is real or is someone tampering with your good name and logo?

it's not me i never contact folks directly

It's most probably cold air from the dryer.

Need to do the flat disc version for comparison.

Needs flat disc for comparison.

Could you print the disc? Mines doesnt print properly

@@solosequenosenada7096 I got sidetracked w/ other things and haven't tried it yet.

it's all yours mate

as the Tesla turbine has a problem regarding effectiveness in low rpm range and this improves it - i don't see why would give up on it?

cheers mate

I find this extremely fascinating. I suppose when you are drawing air from the exhaust, it cases the air to lose significant amounts of pressure while maintaining volume, thus cooling the air. it also makes me wonder if you could feed the exhaust back to the intake, but heat it with a flame and create a kind of gas turbine engine

@@jsh111 They have a thing called a cold gun. It takes advantage of this, makes hot and cold air. A small one costs $20 bucks. To run the Exhaust back into the intake: look at a diesel truck exhaust pipes that pumps air into the exhaust system. I think they call it a Venturi. So a very large cone on the intake and the exhaust shooting air into the cone would suck the atmosphere air into the intake.

You know that because of modern manufacturing processes, you can build to resist deformation?

It seems like the shape turns the turbine into a lower velocity, higher torque turbine which is a step in the right direction for making it useful, and reduces the speed requirement for the discs. So the question would be is there any disc profile which has a higher maximum output power than flat discs, or at least one that shifts the torque curve to a more usable range? What if the discs were curved only slightly, like an amount equal to their thickness? I know many people have had the idea to use conical or curved discs but I don't know how many actually got around to building it.

I'm not sure I understand how the disc shape would have an impact on torque. The same impact on the duration that the fluid spends between the discs can be achieved by changing the exhaust pressure. However, most of the torque is generated on the outside 1/3 of the disc radius so if you were to maximise this you might curve the disc like a hockey stick. But again this compromises structural integrity. Tesla suggested applying a vacuum to the exhaust to increase efficiency. Theoretical performance drops quickly below a more conventional bladed design when you stray from the optimum parameters.

oh wow - you are the first comment i read where you get it - awesome mate

Well said, some weeks ago i requested a small demonstration on the principals of the tesla turbine, and this was a poor attempt to answer said question. Disappointed..

Some years ago I made a few of these turbines. I was attracted to them because I felt I could make a turbine in contrast to a turbine wheel of a jet engine or a turbo. Aluminum housings, steel shaft, stainless discs and spacers (photo etched). What I learned was useful, but it was a bit of a waste of time. There are two phases of a turbine- the phase I was focused on- turning the rushing fluid into rotary motion- but this only occurs after you have converted the pressure of your incoming supply into velocity. This is usually achieved by a convergent/divergent nozzle. It turns out, this is a very specialized science, and at the scale of the turbines I was making- a HIGH precision part. What was worse, was that for a Tesla turbine, these nozzles need to be of a rectangular cross section, so conventional tables are not that useful- the high surface area to cross section and its expansion asymmetry are all barriers to efficiency. The nozzle design was by far the biggest barrier to me. I tried various designs but all had poor efficiency. I got stuck. In small devices, steam or compressed air gets very fast and so do the rpms of the turbines. You quickly end up realizing you need some specialist alloys to manage the heat and forces. In addition, the nozzles are optimised for a particular pressure drop and are not efficient over a range of pressure/flows. Finally, because they are small, they operate in the turbulent flow state and again this looses efficiency when you are trying to garner the Coanda effect of surface adhesion. Its all about fluid velocity; the goal is to convert all the pressure into velocity. The power available to the turbine is related to 1/2mv2. So the nozzle must deliver the maximum v. If you want to make a Tesla Turbine to do actual work then my advice is to work out how to get the incoming at the maximum velocity first before you start on the easy bit (the turbine itself). The single thing you should note when looking at the turbines that Tesla himself built- is the diameter of the inlet pipe. They are huge. These turbines are power dense, but that means they require LOTS of steam or air or water. They are brilliant, but beyond me.

I'm playing around with the idea of compressing the air as it comes out of the turbine so you could get live generation and air battery charging at once from the same wind, but all done mechanically.

cheers mate

Yes, but it will take a lot more development to make a prototype that is worth measuring the performance of. The disc spacing needs optimized, and other optimal paramters need determined.

Already been done. There’s plenty of regular disc Tesla turbines that have been shown to work and push a load. Everyone says “it’ll slow down if you put a load on it!” Yeah so does EVERY engine if it’s idling and a load is out on it and the throttle isn’t opened up 🤭 Ever let out the clutch on… we’ll any engine without giving it some gas at the same time? 🤔 Yes it’s possible to feather the clutch and not use the throttle if done really slowly. But I think you catch my point.

@@keantoken6433 incorrect, work performed can be measured with the current prototype. I didn't ask for a production post prototype measurement. It's always worth measuring.

I could be wrong, but I think Rob just directed the laser tachometer directly onto the ”spokes” of the center hub of the rotor to measure RPM instead of reflective tape, which kind of messes up the RPM reading. If it has 4 spokes, then it would be reading 4 per second and therefore the real true RPM would be the 3400 divided by 4.

@@xmysef4920 Didn't think about that. Still more than I thought you'd get from a hair dryer.

no i used reflective tape mate on one spot

no - wish i did!