Thanks for the comments.
Btrueblood, the flow will probably need to be a little higher than you suggest, as the inlet temperature may be up to 45C, and the SHC may be as low as 3.3kJ/kG-C with 50/50 ethylene glycol mix. On the other hand the duty is intermittent, so the small amount of thermal...
I am starting to consider the design of a liquid cooled resistor, and am interested to views on suitable materials mainly from a corrosion point of view.
The resistor will probably be some form of metallic tube, inside which the coolant will flow. I cannot determine the type of coolant with any...