Industrial application of apodized gas sensor for on-line and in situ measurement of CO and CO۲ concentration

AbstractThe performance of an apodized gas sensor is demonstrated through simultaneous detection of CO and CO۲ absorption lines around ۱.۵۷ µm 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 ~ ۱% and ۹.۵%, respectively, at atmospheric pressure and ۳۵۰ °C, indicating close consistency with the reference data reported by SMPP. A minimum detectable absorption of ~ ۰.۴ × ۱۰−۳, corresponding to a detection sensitivity of ~ ۴.۸ × ۱۰−۹ cm−۱ Hz−۱/۲ is measured in this application.

کلیدواژه ها:

Wavelength modulation spectroscopy ، Apodized gas sensor ، Tunable diode laser