A Calculation Method for Determining the Concentration of Potentially Acid Substances in Feedwater of Once-Through Boilers

摘要

The problem of chemically monitoring the products resulted from destruction of organic substances in the steam-water path of a supercritical-pressure power unit is considered. The level at which the concentrations of acetic and formic acids have to be measured is determined, and the results from measurements of electric conductivity and pH in feedwater and steam are given. A procedure that allows the conditional concentration of acetic acid in steam to be calculated from measured electric conductivity in feedwater and steam is presented.