Title :
Experiment Study of Continuous Emission Monitoring System Based on Differential Optical Absorption Spectroscopy
Author_Institution :
Dept. of Mech. Eng., North China Electr. Power Univ., Baoding
Abstract :
Differential optical absorption spectroscopy (DOAS) technique is based on the recording of the difference between local maxima and minima in the absorption of the probed gas species. An interesting application of the DOAS is to use for the power plant flue gas continuous emission monitoring system. It makes use of the flue gas pollutant different optical absorption characteristic at the UV-VIS wave band to measure their average density and categories.By DOAS principle, experimental study was carried out measuring different concentration SO2, NO2 and NO. The DOAS technology can eliminate the influence of dust etc.The DOAS can be applied to monitor the flue gas emission concentration and should correct the temperature effect onflue gas differential absorption characteristic.
Keywords :
flue gases; average density; differential optical absorption spectroscopy; flue gas differential absorption characteristic; flue gas emission concentration; flue gas pollutant; optical absorption characteristic; power plant flue gas continuous emission monitoring system; probed gas species; Absorption; Density measurement; Flue gases; Monitoring; Optical recording; Pollution measurement; Power generation; Spectroscopy; Stimulated emission; Temperature; Differential Optical Absorption Spectroscopy (DOAS); Gas contamination; flue gas continuous emission monitoring; on-line monitoring;
Conference_Titel :
Education Technology and Training, 2008. and 2008 International Workshop on Geoscience and Remote Sensing. ETT and GRS 2008. International Workshop on
Conference_Location :
Shanghai
Print_ISBN :
978-0-7695-3563-0
DOI :
10.1109/ETTandGRS.2008.29
