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Method for detecting heat exchanger tube failures and their location when using input/loss performance monitoring of a power plant

  • US 6,651,035 B1
  • Filed: 10/09/2002
  • Issued: 11/18/2003
  • Est. Priority Date: 03/24/1998
  • Status: Expired due to Fees
First Claim
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1. A method for quantifying the operation of a fossil-fired thermal system through knowledge of when its heat exchanger leaks working fluid into the combustion gas path producing a tube leakage, the method for quantifying the operation comprising the steps of:

  • monitoring the fossil-fired thermal system by one of the Input/Loss methods, developing a mathematical model of the combustion process incorporating terms commonly associated with fossil fuel combustion and terms associated with sources of working fluid flows into the combustion gas path including tube leakage resulting in a stoichiometric model of the combustion process using a molar base, and determining a tube leakage in moles based on the stoichiometric model of the combustion process using a molar base.

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