# Thread: Inter cooler how cold is to cold?

1. ## Inter cooler how cold is to cold?

Gent's
been doing some work on Thermoelectric cooling using the Peltier effect to create a heat flux between the junction of two different types of materials. Lots of DC power and more water lines are needed but I think I can hit 30-50 degrees cooler BUT you have to get that transfer to air quickly and that hard to do.. so anyone think it worth the research?

2. Probably better off to continue the research on the flux capacitor.

3. Originally Posted by blownhotrodder
Probably better off to continue the research on the flux capacitor.

5. Hey man...... go for it.
After reading about your post on the link you provided, it seems like a ton of work and parts. But I think we would be all ears if you worked it out and got good results.
Jimmy

6. I have the mechanicals / design worked out. But I don’t know anything about air flow

How much air? how fast? what a good change in temp from input to exit?

7. Originally Posted by Glenozzy
...been doing some work on Thermoelectric cooling using the Peltier effect to create a heat flux between the junction of two different types of materials. Lots of DC power and more water lines are needed...
Yep, lots of DC current, and lots of peltier surface area.

The problem will be getting enough peltier cells in place to handle the amount of heat you need to move. Peltiers are not highly efficient coolers, so you need a lot of them to move a lot of heat.

Have you worked out roughly how much heat (not temp, but BTUs or watts) you need to move (remove from the engine intake air stream)?

You could either pre-cool the water into the existing intercooler, or build a custom intercooler that had the peltier cells sandwiched right between the air side and water side of each intercooler 'plate'.

8. I think I did the math correctly. Calculated the cfms needed on a 1400cc engine at 8000 rpms. I come up with 395.52426728 cfms needed.
1400cc = .04944053341 cubic ft. x 8000 rpm= 395.52426728 cfm.
I say the cooler the air, the better.
What kind of delta T do you think you can get w/ 400 cfms going through your cooler?

9. Originally Posted by Glenozzy
I have the mechanicals / design worked out. But I don’t know anything about air flow

How much air? how fast?
what a good change in temp from input to exit?
You need to avoid cooling the air below the dew point, since condensation of the moisture in the air might cause problems.

And the surface temp of the intercooler on the air side needs to be above freezing, so the plates don't frost up.

Approximate air flow into the engine shouldn't be too hard to work out. You know the displacement of the engine, the RPM, and the pressure of the intake air after the supercharger/intercooler. Every two revolutions all cylinders have cycled once (four strokes).

10. Dew point is pretty low here in So. NV.