Flue gas analysis of heating systems

This makes flue gas measurement easy

Is everything functioning smoothly in your oil or gas heating? Do the test. Furnaces in businesses must be regularly inspected in terms of emissions and efficiency. Regulatory publications include the BimSchV and the KÜO.

When it comes to flue gas analysis of heating systems, Dräger provides you with the best flue gas measurement devices. The Dräger FG4200 and the FG7500 offer superlative measurement characteristics and comfortable operation.

How is the flue gas analysis of heating systems carried out correctly?

At the beginning of flue gas measurement, the combustion temperature is measured. This can be done either with a combustion air sensor or via the gas extraction probe. In air-flue gas systems in the annular gap of the supply air, in atmospheric furnaces in the room air. For the calculation of the coefficient of performance and flue gas loss, the combustion air temperature is absolutely necessary.

Subsequent to this determination, the gas extraction probe is fed into the flue gas tube. The next step is the search for the core flow, in which the hottest gases with the lowest oxygen content in the flue gas are found. Once the core flow has been found, the actual measurement and flue gas analysis of the heating system commences.

The measured, stabilised values are obtained which can then be processed further, for example printouts or as documentation. If flue gas measurement takes place according to the 1st Federal Emission Protection Ordinance, a multi-hole probe is used instead of a flue gas probe, which allows a homogeneous gas extraction on the entire cross-section of the flue gas tube. Additionally, mean values over a time period of 30 seconds are established.

The flue gas measurement of the heating system is part of the everyday work of sanitary, heating and air conditioning work, of heating engineers, installers, chimneysweeps and industry.

Questions about flue gas measurement

Hazardous substances are formed during the combustion process. Beyond a specific concentration, emissions are harmful to both humans and animals; they affect plants, bodies of water, soil as well as structures and materials. Incomplete combustion can produce carbon monoxide (CO), which is a potent respiratory toxin at higher concentrations.

The 1st BImSchV and the KÜO establish which hazardous substance concentrations and flue gas emissions are permissible in flue gas analysis.

The 1st BImSchV is the ordinance on small and medium sized systems of 26 January 2010.

This regulation is intended to provide a considerable reduction in the emissions from small combustion plants. In this way, it monitors permissible harmful substance and flue gas emissions for small and medium sized furnace systems. According to this ordinance, furnace systems may not exceed certain emission limits and must comply with the specifications of the combustion coefficient of performance.

For measurement according to the specifications of the 1st BImSchV on furnace systems we offer the following products:

Dräger FG7500
Dräger EM200plus

KÜO steht für die Kehr- und Überprüfungsordnung und dient dem Brandschutz und der Sicherheit von Betreibern von Feuerungsanlagen. Sie enthält Definitionen über die Art der zu prüfenden Anlagen, Zeiträume und Grenzwerte, die bei der Überprüfung einzuhalten sind.

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