Yes, zac, I misread your post egregiously. I thought you were talking about carburetor freezing. True, you need some serious energy to cool the entire air intake to -20C.
I'm not sure about the Tesla Turbine, what I read is that it could be more efficient than a turbine at low heads, but it doesn't work very well against backpressure, because it works using the Coanda effect and the "spiral" that the air makes when moving on the impulsor disks detaches from the surface. Frankly, that's what turbos are for, but, as Carlos says, Wilie Conceptual could be on the track of something.