I thought that I had read that someone had run cold water into the system.....
510 242 - 3094
I'm surprised there's been so little comment about the pipe that
ruptured in New York. Does everyone realize what happened and that
it's serious damn business?
Anyway one thing puzzles me. The cause of the rupture has been
postulated as 'condensate hammer'--condensate slammed around which
overloads the pipe. That's the first time I've ever run into, and I
don't understand it. Supposedly the line runs at about 200 psi. The
only way you can have any significant amount of condensate is if the
steam is saturated--at a temperature of about 381F. If it cools even
a little you get condensation and if the temperature goes up even a
little the condensate flashes to steam. It's not apparent to me that
you can have condensate and steam in the same line for any
appreciable time. Can anyone explain how this happens?
OTOH, given that the line is about 80 years old, it seems a lot more
likely that corrosion or settlement is the cause.
Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw@skypoint. com | this distance" (last words of Gen.
............ ......... ......... ......... | John Sedgwick, Spotsylvania
1864)
http://www.skypoint .com/~chrisw/
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[Non-text portions of this message have been removed] Received on Sat Jul 21 13:59:00 2007
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