ICOPE-15-C027 Temperature correction and continuous measurement for escaping Ammonia in power plant using 2.25μm tunable diode lasers

Abstract

This paper selects absorption line near 2.25μm, and has temperature correction test range 20〜270℃, this allows more accurate measurement results. It makes relative error from 67.53% to 3.33% at 200℃. Design and install measuring gun, and realize continuous on-line measurement of SCR process ammonia slip of a power unit of Jiaxing Jies Power Plant, the measurement results basically reflect the real-time ammonia slip rate of this power unit. It lays the foundation for future power plant continuous on-line measurement technology for the escaping ammonia of SCR process.