Method of measuring a corrosion potential, method of simulating potential characteristics of a reaction rate, and plant monitoring system adopting them

摘要

A system for monitoring the operation of a plant, which includes the facility of simulating the corrosion potential of a material and which can assess the effect of a countermeasure for mitigating the corrosion environment of the material, with the corrosion potential obtained by the simulation. The corrosion potential of the structural material of the plant is computed through a numerical analysis by applying an electrochemical mixed-potential theorem on the basis of the analytical result of a charge transfer reaction. Programs for such potential computations are prestored in a computer system from which data are accepted into a host computer. The computed corrosion potential is related with water quality data (for example, the concentration of hydrogen injected into the plant), and the relationship is output to a display unit.