Re: NYC steam line rupture

From: <Christopher>
Date: Mon Jul 23 2007 - 00:05:00 EDT

On Jul 21, 2007, at 5:27 PM, Steve McKenzie wrote:

> Condensate hammer is often caused by opening valves which isolate
> portions
> of a circuit.

Just so I understand--I've got two sections of pipe with a closed valve between. One section contains 200 psi superheated steam; the other is unpressurized and at some lower temperature. You open the valve and the incoming steam condenses as it enters and the condensate hurled around by entering steam before it condenses. Seems like a very fine line since you need to have superheated stem in direct contact with condensate. All this has to happen before the incoming steam condenses or the condensate heats up. Have I left something out?

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/ Received on Mon Jul 23 00:05:00 2007

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