-----Original Message----- From: Horace Heffner [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 12, 2007 12:03 PM To: vortex-l@eskimo.com Subject: Re: [Vo]:Mostly Wasted
On Dec 11, 2007, at 1:17 PM, Jeff Fink wrote: > > > -----Original Message----- > From: Horace Heffner [mailto:[EMAIL PROTECTED] > Sent: Tuesday, December 11, 2007 4:34 PM > To: vortex-l@eskimo.com > Subject: Re: [Vo]:Mostly Wasted > Do you know what temperature is available post turbine, prior to cooling? That means prior to the condenser, which is part of the cooling process, true? The steam exits the low pressure turbines directly above the condenser tubes thru a rather large opening which is intentionally large to keep the velocity of the exhaust low enough to prevent impingement erosion of the tubes from condensed droplets, and vortex shedding oscillations of the tubes which would cause fatigue failures. Therefore, in the entire condenser you have a very windy supersaturated steam/ water mixture with only trace amounts of entrained air. Temperature right at the exhaust may be as low as 130 F. Steam power plants lose very little water from the cycle. The water is maintained in a highly purified and chemically controlled state, and is too valuable to lose. Flash evaporators integral to the cycle are commonly used for fairly modest makeup that is required. Jeff No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.17.1/1181 - Release Date: 12/11/2007 5:05 PM
