Re: controller cooling

[Rich Rudman <rmanzan@tscnet.com>]

A few comments on controller cooling. Alot of you are forgetting the
KISS principle. Water is very good and very cheap.  For the 1-5 Kw heat
loads, a simple drilled passage is over Kill. Phase change, and
multipath serpitine routing, is a expensive waste of time. Lets remeber
that having a very efficient long winding path will leave the last few
inches a lot hoter than the first inch. Simple big passages with good
stout flow, NOT high pressure here. Enough flow so you flush bubbles and
not too fast to entrain air.
	All the high fin counts and large surface  area can be saved for the
radiator. I will have Lake Meade.
Copper is better but costs mode, is heavier, and is a pain to machine.
	Remember I have to build stuff you folks can pay for. Not just the
Racers that have deep pockets.
Simple, practical and cheap. 

Rich Rudman
Manzanita Micro