Exhaust Sensor for Heating Systems

摘要

The development of an electrochemical exhaust sensor and a method for continuous measurement of the air-fuel ratio (AFR) of a burner is described. This ratio determines the efficiency and the contaminant emission of combustion processes. The AFR gauge consists of a zirconium oxide electrolyte sensor and auxiliary equipment for the stabilization of a gas flow and dosage of small gas quantities. Different oil and gas fueled burners were tested and the results demonstrate the proper functioning of the sensor. With its aid feedback optimization of the combustion process is possible. Improvements of burn efficiency of up to 10 percent are reported.