Optimizing De-NOx Control by Modification of the Control Logic and Measurement System without Retrofit

摘要

This paper describes Optimizing De-NOx Control by Modification of the Control Logic and Measurement System without Retrofit Young-Heung power plant is one of the largest thermal power plants in Korea and it generates 5,0 80MW with 6 units. the plant is located close to the capital area and thus subject to strict environmental restriction by t he government, the plant was designed to emit very low concentrations of environmental pollutants: SOx 25ppm, NOx 15ppm, and Dust 5mg/Sm3. In actual practice, it emits only 22ppm, 12ppm, and 2mg/Sm3 respectively because the municipality of the plant and citizens demand higher standards.