Example of Lambda Control based on Oxygen sensors

The Lambda Control system has to organize the correct supply of total combustion air - to make sure that the excess of oxygen over the stochiometric ratio to the fuel will be optimum low and stable at any time and at any burner, port by port, firing side by firing side. Only the cooperation of these both elements of DeNOx technology enables to achieve the target results of NOx reduction and energy savings.

Following images show profiles of a glass melting furnace before and after Lambda Control implementation.

Furnace without Lambda Control:

Insufficient furnace control by PID only - no Lambda Control

Profile of the same furnace after implementation of Lambda Control:

Improved furnace control using BTR temperature control plus Lambda Control compensating asymmetric Furnace combustion

Links

• Oxygen Sensors

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• Lambda Control

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• - Lambda package
• - Example of installation
• Air Curtain

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• Further sensors

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