Method for operating a continuous flow steam generator
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United States of America Patent
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Mar 22, 2016
Grant Date -
Jun 16, 2011
app pub date -
May 27, 2009
filing date -
Jun 12, 2008
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Abstract
A method for operating a continuous flow steam generator with an evaporator heating surface is provided. A target value for a supply water mass flow is fed to a device for adjusting the supply water mass flow. In order to improve the quality of a predictive supply water or mass flow control and to maintain the enthalpy of the flow medium at the evaporator outlet particularly stable especially when load changes occur, a correction factor is taken into consideration during production of the target value for the supply water mass flow. The correction factor is a characteristic of the temporal derivative of enthalpy or the density of the flow medium at the input of one or more heating surfaces.
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