Exhaust emissions measurement

Optimizing the emissions from an engine fitted with an aftertreatment system (3-way catalytic converter, diesel particulate filter, SCR catalytic converter, etc.), whether stationary or dynamic, is impossible without a reliable emissions database.

• We can analyze and record gaseous emissions (NO, NOx, HC, CO, CO2 and NH3) using state-of-the-art multi-line measuring systems
• Our FTIR systems can detect the intermediate products created as a result of chemical reactions in the catalytic converter

A pre-defined amount of fresh air is added to the exhaust gases in the tailpipe to allow reactions that would also occur in the natural environment. Continuous samples are taken and analyzed in a dynamic test cycle. This represents state-of-the art technology in the field of roller type dynamometers. Applying high-tech tools such

In order to reduce particulate mass emissions and be able to certify that diesel engines meet stringent U.S. and European emissions legislation, we use full-flow dilution tunnels (for light-duty vehicles) and part-flow dilution tunnels (for HDT engines). State-of-the-art 415S smoke

When Euro 6 emissions legislation comes into force, the existing requirement to measure particulate mass will be extended to include a measurement of the number of particulates emitted. This is because modern diesel engines produce very tiny particulates which can enter the lungs more easily. On account of their size, they are regarded as a much greater risk to health.

Particulates are counted using a light scattering method. Because they are so tiny (in the single-digit µm range), butanol vapor has to condense on each particle and create a bubble which can then be detected by the light sensor.