Industrial application of apodized gas sensor for on-line and in situ measurement of CO and CO2 concentration
محورهای موضوعی : Journal of Theoretical and Applied Physics
Seyedali Hosseinzadeh Salati
1
(Department of Physics, University of Isfahan, Isfahan, Iran)
Alireza Khorsandi
2
(Department of Physics, University of Isfahan, Isfahan, Iran)
Saeed Ghavami Sabouri
3
(Department of Physics, University of Isfahan, Isfahan, Iran)
کلید واژه: Wavelength modulation spectros, Apodized gas sensor, Tunable diode laser,
چکیده مقاله :
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.