Feedwater heater control system for improved rankine cycle power plant efficiency
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United States of America Patent
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Jul 28, 2015
Grant Date -
Oct 11, 2012
app pub date -
Jul 20, 2011
filing date -
Dec 20, 2010
priority date (Note) -
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Abstract
A method comprises heating a feedwater stream in a feedwater heater, boiling the feedwater stream in a boiler to produce a steam stream, superheating the steam stream in the boiler to produce a superheated steam stream, producing power using the superheated steam stream to produce an outlet steam stream, using a first portion of the outlet steam stream to provide heat for the heating step, and modulating the flow of the first portion of the outlet steam stream below a full flow to allow the superheated steam stream to meet a superheated steam set point.
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