ian wrote:
I am thinking of using plain old copper tubing (the type you get from
Home Depot) to cool the winding section of a a generator by wrapping a
few turns of the copper tubing around the casing and then pumping sea
water directly around the tubing. Can anyone advise whether this is
going to work? Obviously I don't mind if it gets an ugly blue colour
inside the tubing however I don't want to be loosing cooling
efficiency with time, or worse have the tubing leak. The reason I
don't want to use cuprous nickel is that it is much less malleable
than standard copper tubing and I would not be able to simply wrap it
around the casing.

No problems with copper and sal****er; however, doubt you will be able
to get good enough heat transfer between copper tubing and generator
casing to make it worth the effort.

Lew