On Sat, 12 Aug 2006 12:50:04 +0000, Shortwave Sportfishing wrote:


When they built the new gas turbine power plant down in Killingly, I
wondered what the bright green smoke was coming out of one of the stacks
one day. I knew one of the engineers there, so one time I asked him what
the green smoke was.

Get this - finely crushed walnut shells. I guess they chuck them into the
turbines at low rpm to clean the burner cans from time-to-time. The green
is a chemical that does the cleaning and the fine crushed walnut shells
are the transport medium.

Don't; know if that's true or not, but that's what he said.

Probably true. I've heard walnut shells are also used similarly on
airplane turbines. They are also used for "selective" coating removals on
submarines.

http://www.compomat.com/walnut.shtml