I remember reading you wanted it to pump air, I did not realize it was the pure goal. Awesome.I'm building a giant leaf blower
The turbine output shaft will be coupled directly to a centrifugal air compressor, either a standard bladed design, or a Tesla pump, if it proves workable.
I wonder if it would follow water trends.
I would assume the potential pressure ratio of a tesla compressor is similar to that of a normal centrifugal one. So practically speaking perhaps 3:1 or 4:1 per stage.My final design calls for a closed system, so I will be using condensers to recover & re-circulate the water. Using circulation pumps, temperature sensors, and another Arduino computer (digital microcontroller), I should be able to keep the condensed water at close to 100 C in the hot well tank, (which is another factor driving my decision on which feed pump to use). The pumped feed water is already pre-heated
A single stage is actually best for my needs.
Typical bladed centrifugal compressors using aluminum impellers can develop 40 to 60 psi, which should work well in my application. Using stainless or titanium impellors can provide 90 to 110 psi, which I hopefully will not need.
I've never been able to find max air pressure output for Tesla compressors, so I'll be experimenting again
The classification of this being a reaction turbine does not fit the definitions of classical turbine design because of how the pressure drop across reaction blades is defined. It appears that the maximum disk velocity should be no greater then the fluid velocity leaving the nozzles. As the disk velocities increase the centripetal forces will force the fluid to move outward in a curved path also increasing the area of contact with the fluid and disk. This is a matter of conservation of energy. There is a pressure drop from the inlet to the outlet or the fluid would not flow. And if energy is transferred to the disk to do work there has to be a drop in enthalpy if one believes in the first law of thermodynamics.
It would be more accurate to say that (almost) the whole enthalpy drop happens in the nozzles. Other pressure drops from 'non ideal' characteristics of the machine represent a rise in entropy, which doesn't do work.
like Tesla Turbine is not scientifically described with a reasonable degree of precision; either as a pure theoretical study or an application study. If it is a challenging device, that would be exactly the reason to be approached by those highly qualified scientists who have all means in their hands.I think the reason is that practical Tesla turbines usually have rather poor performance compared to bladed turbines, so they are just not often used.Fair enough!
Speaking about the real Napier Deltic, that was a nightmare for its designer!
That-s why I can't understand why a relatively simple mechanism and thermodynamic device
I like to think of it this way. First you really do not want moisture in the steam or air. But if it is a mixture there will be a mass difference and the liquid particles will likely move to the outside like the old dairy cream separators. But I do not see the steam condensing because that requires either compression or a heat loss. But you have proposed a good physics experiment and asked a dam good question.
The technique used is computational fluid dynamics. The trick is putting the paramaters of the equations together , A 3d compliation on a computer costs a minimum of 70 dollars / hour not including the time to do the coding and check the results. Most of this work is proprietary and its difficult to obtain good information. There are graduate engineering classes on the subject but software is difficult to come by. But I have a couple of texts on it and you have made me curious if its possible to do something with it at a minimal level.
