ll combustion processes require the correct ratio of fuel and Oxygen (O₂). Incomplete combustion directly affects the performance and operational costs of a system.
The result of incorrect combustion include fuel waste, an increased level of toxic emissions and a possibly damaging use of he overheads of fuel consumption and system value are high in large scale industrial and commercial boilers/furnaces carry. In order to see return of investment and minimal running costs the operation must be kept at peak efficiency.
Complete combustion requires the ideal ratio of fuel to air. This is optimised and maintained by measuring the output O₂ level of the exhaust/flue gas by using an SST Zirconia (ZrO₂) sensor in a closed loop feedback system to a controller for regulating the input mix. This is especially useful when the quality of fuel supplied may vary (i.e. gas from different sources)
The diagram to the right is an example of a combustion process using the SST ZrO₂ sensor (OXY-Flex) as a feedback signal into the controller system. The graph above shows how combustion efficiency and emissions against the air to fuel ratio.
SST Sensing designs and manufactures solutions with a unique type of ZrO₂ sensor and interface electronics that ensures failsafe operation: