Title :
Theory and simulation of a miniature zirconia sensor for control of the air-to-fuel ratio in combustion systems
Author :
Benammar, M. ; Maskell, W.C.
Author_Institution :
Dept. of Appl. Sci., Qatar Coll. of Technol., Doha, Qatar
fDate :
12/1/2001 12:00:00 AM
Abstract :
The theory of operation on both sides of stoichiometry of a miniature zirconia oxygen pump-gauge incorporating a diffusion hole is discussed. Computer simulation of the sensor output when used for monitoring the air-to-fuel ratio in a combustion system burning pure methane in air is given. It is shown that for a sinusoidal current applied to the pump, the gauge provides an oscillating EMF from which the air-to-fuel ratio may be determined unambiguously without the use of a reference and/or pseudo-reference
Keywords :
air pollution control; boilers; combustion; electrochemical sensors; air-to-fuel ratio control; combustion systems; computer simulation; diffusion hole; electrochemical oxygen pump; flue gas; gas-fired boilers; lambda sensor; miniature zirconia sensor; oscillating EMF; oxygen pump-gauge; oxygen sensor; pseudo-reference; pure methane in air; sinusoidal current; Combustion; Computer simulation; Computerized monitoring; Control systems; Frequency; Gas detectors; Sensor systems; Sensor systems and applications; Systems engineering and theory; Temperature sensors;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/7361.983467
