Based on existing monitoring parameters in power plant

an on-line monitoring and optimized management model of deposited scale in condensers has been established on the basis of operating process concerning steam turbine and condenser

an on-line monitoring instrument for thermal resistance of deposited scale bing designed

the on-line monitoring of thermal resistance for deposited scale in the condenser being realized by using the data aquisition and processing functions of a single-chip processor. The said techno-（logy） has been successfully used in Huaneng Dalian Power Plant

the cleaning period and the time required for cleaning can be accurately determined

and the optimized operation of condenser can be realized.