Optical temperature measurement in combustion plants

Within the scope of legal provisions and licensing requirements, the requirements for NOx separation in the exhaust gas of combustion plants with a NOx value in the clean gas of <100 mg/Nm3 at an NH3 slip of <10 mg/Nm3 are high. To meet these requirements, the temperature inside the boiler must be detected as controlled parameter for primary and secondary measures to reduce pollutants. The report explains the different measuring systems for optical temperature measurement in combustion plants.