Industrial application of apodized gas sensor for on-line and in situ measurement of CO and CO2 concentration

الموضوعات : Journal of Theoretical and Applied Physics

Seyedali Hosseinzadeh Salati ¹ , Alireza Khorsandi ² , Saeed Ghavami Sabouri ³

1 - Department of Physics, University of Isfahan, Isfahan, Iran
2 - Department of Physics, University of Isfahan, Isfahan, Iran
3 - Department of Physics, University of Isfahan, Isfahan, Iran

تاريخ التأكيد : 19 الثلاثاء , شوال, 1444 تاريخ الإصدار : 16 الثلاثاء , ربيع الثاني, 1442

الکلمات المفتاحية: Wavelength modulation spectros, Apodized gas sensor, Tunable diode laser,

ملخص المقالة :

AbstractThe performance of an apodized gas sensor is demonstrated through simultaneous detection of CO and CO2 absorption lines around 1.57µm in the recuperator channel of a gas-fired industrial furnace at Shahid Montazeri power plant (SMPP) industry. This led to the concentration measurement of targeted molecules as less than ~ 1% and 9.5%, respectively, at atmospheric pressure and 350°C, indicating close consistency with the reference data reported by SMPP. A minimum detectable absorption of ~ 0.4 × 10−3, corresponding to a detection sensitivity of ~ 4.8 × 10−9cm−1 Hz−1/2 is measured in this application.