Structural Theory and Thermoeconomic Diagnosis: Application to a Supercritical Power Plant

In this paper, the new diagnosis method based on the structure theory and thermoeconomic is introduced-fuel impact. It is applied to diagnose the causes of the additional fuel consumption of a steadily operating plant, due to the inefficiencies of its components. For a 1000 MW supercritical coal-fired power plant, by using the fuel impact method analyze the #5 and #6 LP out of service condition performance data based on the THA condition performance data. Furthermore, it will be able to quantify the effect of a component malfunction in the other components of the plant. As a result the validity of the methodology is proved and quantified. The methodology is validated quantifying its accuracy.