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Hilsch Vortex Tubes...20kW cooling capacity

Old Sep 24, 2012 | 04:41 PM
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Billy22Bob's Avatar
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Default Hilsch Vortex Tubes...20kW cooling capacity

Is anyone familiar with these and if they know of a setup for a CAI to a blower?

They are suually prescribed in small foot long 4-30cfm units for cooling - I'm yet to find a big one.
I'm thinking there is a great source of energy in the exhaust....hence why Turbos are what they are and the consequent engines are subsequently higher in efficiency than our SC buddies - they recycle this energy.

I'm wondering if someone has run a turbo purely as an air pump off a SC motor and then run 500-1000cfm to a vortex tube capable of cooling the intake air to 0-5degC (32-41F).

This would be the equivalent of taking 20kW of heat from the intake plenum. In our cars, this equates to about - 70F pre IC or the equivalent of an addiitonal 20kW of cooler, but only at high rpm when its needed.

Condensation wouldnt be a big issue - the motor sees the water either way. Obviously you dont want icing conditions to develop.

Sounds a little complex though - to some spanner swingers out there they may know.
I'm still to work out the dimensions of the tube - as I say - I havent found a larger 500-1000cfm unit yet.

1000cfm at 10-20psi from a pair of snail/s may be a tough call as well - it would more than likely be a narrow/wide one (ie: high volume).

The vortex tube discharge can be open to atmosphere at the CAI entry point so that over pressure isnt a problem.
The vortex tube (I believe) is reasonbly insensitive to intake temps - so the turbo compression energy (ye olde AIT's in a different guise) may not be an issue....(maybe me thinks).

The tune would be a challenge to say the least with the added back pressure from the Turbo

Open to suggestions/experience.
 
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Old Sep 24, 2012 | 08:26 PM
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Talking Re: Hilsch Vortex Tubes...20kW cooling capacity

These tubes use inertia to spin the air and separate the hot and cold molecules, you blow into it and get like 900 degrees out one side and -50 out the other.

There is no such thing as a free lunch, same here.

Lots of the air in goes out, and it requires high pressure air, been there and done that. If you want cooling, vent compressed air ( its dry ) and get the abedetic cooling, this is how they make liquid air, nitrogen, etc.......

Sorry to be a downer again, have visited all these area, oh prices listed - how many do you want.

Woody
 
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Old Sep 24, 2012 | 09:12 PM
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Billy22Bob's Avatar
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Default Re: Hilsch Vortex Tubes...20kW cooling capacity

ah ...but my lunch is continually getting sqeezed out of the exhaust....

At 6,000rpm stock 14.5psi, I'm pumping in 1,350kW of fuel* .....and only extracting 255kW and 450Nm at the shaft.....the rest my friend is lunch.....**
.....and its on me - prepaid....cost nadda....nothing....well....maybe not nothing...;>)...!

At 20psi - you're talking 1,620kW of fuel.....

Anyone hungry?


*based on 44MJ/kg
**well not quite all of it...gotta run water and oil pumps...but lets say 25% is ex exhaust gas kinetic and heat energy.....300kW....fantastic
 

Last edited by Billy22Bob; Sep 24, 2012 at 09:22 PM.
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Old Sep 24, 2012 | 09:25 PM
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Talking Re: Hilsch Vortex Tubes...20kW cooling capacity

Iam thinking your numbers are optimistic. Cars are only 20 -30 % efficient and your looking to get over on thermodynamics.

Thermodynamics , the game:
Laws 1 -3

You cant win

You cant get even


You cant get out of the game

10 degree F colder air gets you one percent more power out. Its a heat engine after
all.

Woody
 
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Old Sep 24, 2012 | 09:33 PM
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Default Re: Hilsch Vortex Tubes...20kW cooling capacity

just as a subscriber, this is better than physics class.
 
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Old Sep 24, 2012 | 10:34 PM
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Billy22Bob's Avatar
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Default Re: Hilsch Vortex Tubes...20kW cooling capacity

Turbos use the kinetic part of the exhuast energy to drive a turbine which drives a pump to pressurise an intake manifold which in turn produces more power which in turn drives the turbo and around you go...= lag...but efficient 'cause you're using waste gas/energy....

...as opposed to us who pref to take the crank....no lag....that's fine...but inefficient
However.....if they can extract enuf energy via the turbo to 20+ psi 500cfm to one exhaust's worth of energy.....could you pull 2x500 from a 3.2L V6?

I'm thinking run this 2x500cfm @ 20psi air ex the snails....through a couple of vortex tubes and pipe the cold side into your intakes.... and take your ambients from a wet 95F_RH70 (hot humid day) down to a conservative 41F (or maybe even lower) - gotta work out the magic numbers....
Hell throw the condensate in there as well - some like water injection...


Hey - you could possibly even run the hot air side of the tube off to blow dry the missus' hair....

Sorry if I resort to repeating myself .....it's just a tactic in a possibly loosing battle.....
 

Last edited by Billy22Bob; Sep 24, 2012 at 10:36 PM.
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Old Sep 25, 2012 | 12:43 AM
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Default Re: Hilsch Vortex Tubes...20kW cooling capacity

Originally Posted by JesseJamessrt6
just as a subscriber, this is better than physics class.
hahahaha....+1
 
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