Ian,
BTDT, go find some cerrobend (sp?) to fill the tubing so it doesn't
flatten when you bend it.
I do not even vaguely remember the name of the high thermal conductivity
epoxy that we used to stick the copper to the generator frame.
Matt Colie

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.

All ideas and comments appreciated.

Ian