The exhaust gas and pyrolysis gas can be analyzed using a comprehensive measurement technology in the furnace and directly in the combustion chamber.
The exhaust gas analysis includes the following components:
- O2 (0 – 25 %)
- CO (0 – 2500 ppm / 0 – 5 %)
- VOC / NMVOC (0 – 10‘000 ppm)
- NOX als NO und NO2 (0 – 2500 ppm)
- H2O (0 – 100 %)
The pyrolysis gas analysis includes the following components:
- O2 (0 – 10 %)
- CO2 (0 – 25 %)
- CO (0 – 30 %)
- H2 (0 – 25 %)
- CH4 (0 – 5 %)
- VOC / NMVOC (0 – 10‘000 ppm)
- H2O (0 – 50 %)
Particulates and aerosols can be recorded as gravimetric total particulate mass and condensate. Additionally, the particle size distribution and number concentration can also be measured.
The following methods are available here:
- Gravimetric total particulate mass according to VDI on plane filter or filter sleeves
- Particle size distribution and number concentration can be measured using the following methods:
- Scanning mobility particle sizer (SMPS) for particles of 15 nm to 770 nm
- Optical aerosol spectrometer (OAS) for particles of 200 nm to 40 micrometers
- Two-stage fine particulate dilution (1:10 hot and 1:10 cold)
- Condensate with wash bottles and filter according to EPA
The Competence Center Thermal Energy Systems and Process Engineering works together with the Laboratory of Atmospheric Chemistry (LAC) at the PSI and with the Competence Center Aerospace Biomedical Science and Technology to carry out basic tests on the effect of combustion aerosols.
