Turbine cooling

Any questions about tools or supplies. Post your compressor/gun questions here.



Settled In
Posts: 14
Joined: Sat Jun 29, 2019 9:07 am

Country:
USA
PostPosted: Thu Jul 11, 2019 9:20 pm
I had a pretty interesting conversation with one of our process engineers at work today.

First, the large chamber will drop temperature, but probably not enough for what I'm looking for. And nothing comes free. There will be pressure drop. Once he said that, it wasn't worth pursuing.

Then we talked about the ice water and radiator. Must have raised his curiosity because he got out a couple books and his calculator. He said it will thermosyphon but not enough. He suggested a small DC pump, which I already have. He had to make some assumptions and was working with round numbers but he thinks it will do the trick. He did say not to expect miracles and a lot depends on ambient temperature, humidity etc.

I'm thinking early morning/coolest time along with the radiator thing might actually work out.

It'll be a while before I get around to playing with this though. I've got 20 raised panel cabinet doors to build first.

User avatar

Board Moderator
Posts: 5071
Joined: Tue Feb 24, 2004 7:00 pm
Location: central Ohio
Country:
USA
PostPosted: Fri Jul 12, 2019 7:49 am
Nice.....access to someone armed with "science." If you need any advice on the cabinet door finishing drop me a PM so we don't clog the forum here with wood stuff. We refer to those as double sided flats in production finishing. There are some easy steps you can do to make the process go a lot smoother.
Metal, wood, fiberglass, we work it all... www.furniturephysicians.com We can restore the irreplaceable!



Top Contributor
Posts: 4426
Joined: Tue Sep 16, 2008 1:17 pm
Location: Pahrump NV.
Country:
USA
PostPosted: Sat Jul 13, 2019 3:33 pm
jss81258 wrote: seems like while the expansion chamber might cool, wouldn't you just heat back up going back into the small hose?


No



A Inter cooler radiator is designed for Hi air flow, and dropping air Temp.
It gives plenty of room for the air to expand over the whole radiator.
You shouldn't see any pressure drop either? How or why it would drop is not logical?
There also should be no loss in CFM.
The Temp drop however would be dramatic when combined with an electric fan at least down or close too room temp I am guessing.
https://www.acsmotorsport.com/?product= ... let-outlet
At less than 80 bucks for the cooler I would try it. If it doesn't work (which I know it will) you wouldn't have a very Hard time selling it to some kid for his Turbo project lol

https://www.youtube.com/watch?v=6S88XeA6fbM
Last edited by Doright on Sat Jul 13, 2019 3:55 pm, edited 1 time in total.
Dennis Barnett
A&P Mechanic, FCC General radio Telephone Operator
Line Maintenance A&P Mechanic and MOC Tech specialist.

User avatar

Board Moderator
Posts: 5071
Joined: Tue Feb 24, 2004 7:00 pm
Location: central Ohio
Country:
USA
PostPosted: Sat Jul 13, 2019 3:39 pm
Hey, that's pretty cheap for that....comboing that up with a decent fan would probably work....
Metal, wood, fiberglass, we work it all... www.furniturephysicians.com We can restore the irreplaceable!



Top Contributor
Posts: 4426
Joined: Tue Sep 16, 2008 1:17 pm
Location: Pahrump NV.
Country:
USA
PostPosted: Sat Jul 13, 2019 4:54 pm
The Pressure drop that his engineer was talking about I'm trying to wrap My head around.
I'm not so sure.
https://www.youtube.com/watch?v=xTAfyc06ZxQ

https://www.youtube.com/watch?v=7ZpuMBkf1Ss

https://www.youtube.com/watch?v=3xsOxff0Qf4
Dennis Barnett
A&P Mechanic, FCC General radio Telephone Operator
Line Maintenance A&P Mechanic and MOC Tech specialist.

User avatar

Board Moderator
Posts: 5071
Joined: Tue Feb 24, 2004 7:00 pm
Location: central Ohio
Country:
USA
PostPosted: Sat Jul 13, 2019 5:15 pm
Hmmmmmm..... so much math......
Metal, wood, fiberglass, we work it all... www.furniturephysicians.com We can restore the irreplaceable!



Settled In
Posts: 14
Joined: Sat Jun 29, 2019 9:07 am

Country:
USA
PostPosted: Sat Jul 13, 2019 6:12 pm
Air to air heat exchangers really aren't known to be very efficient.

But that does bring up a point. There might be a great deal of cooling if the intercooler is set up in water, and the water is circulated.

One thing that made cooling the inlet air attractive is that the turbine should also benefit from the reduced temperature.

I would think it advantageous to cool both the inlet and outlet, and use one or both as needed.

I wonder if anyone publishes specs on intercoolers? I think some research is warranted. And maybe another talk with the engineer.



Top Contributor
Posts: 4426
Joined: Tue Sep 16, 2008 1:17 pm
Location: Pahrump NV.
Country:
USA
PostPosted: Sun Jul 14, 2019 2:40 am
DarrelK wrote:Hmmmmmm..... so much math......


Cant go fast without Math man :goodjob:
Dennis Barnett
A&P Mechanic, FCC General radio Telephone Operator
Line Maintenance A&P Mechanic and MOC Tech specialist.



Settled In
Posts: 14
Joined: Sat Jun 29, 2019 9:07 am

Country:
USA
PostPosted: Mon Jul 15, 2019 9:42 pm
In looking for intercooler specs, I ran across Bell Intercoolers. I didn't see any specs, but they do have an interesting FAQ. They get into pressure drop, the reasons for the drop (they touch on turbulators, which I wouldn't have thought of being used in vehicle/turbocharger applications), and efficiencies of both air to air and air to liquid intercoolers.

And, they get into failure modes. Apparently, the most significant is hitting "solid objects, like other vehicles." :D

Anyway, I may have to give these guys a call when/if I actually get around to moving on this project.



Top Contributor
Posts: 4426
Joined: Tue Sep 16, 2008 1:17 pm
Location: Pahrump NV.
Country:
USA
PostPosted: Tue Jul 16, 2019 3:03 pm
jss81258 wrote: efficiencies of both air to air and air to liquid intercoolers.


Inner cooler efficiency is mildly complicated with the Math involved.
It's Is very important that each Turbo system is matched correctly with the inner cooler, .
There are a LOT of Variables involved and often requires a lot of trial and error in the design of a system. The cooler can be perfect match on Paper and yet be a dog in performance as far as an auto hi performance set up, Just like Trying to use the biggest Turbo It just doesn't always work.
Because of all the Variables involved no Inner cooler mfg is going to post the efficiency rating of any cooler.

But you guys are just looking for a free flowing cooler offering little to no resistance to flow
I would expect The Pressure drop across the core to be Minor at the Low pressure and low cfm levels you guys with turbine guns are playing with but the Temp drop would be huge as compared to not running a cooler of any type.
It was just an idea trying to help out run with or don't. :pcorn:
Dennis Barnett
A&P Mechanic, FCC General radio Telephone Operator
Line Maintenance A&P Mechanic and MOC Tech specialist.
PreviousNext

Return to Tools and Supplies

Who is online

Users browsing this forum: No registered users and 6 guests