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Are You Ready for Sub-23NM?

3095 Engine Exhaust Particle Measurement System

Are You Ready for Sub-23NM?

3095 Engine Exhaust Particle Measurement System

The European Union and other countries such as China and India have regulations (e.g. Euro 6/VI, China 6) for measuring solid particles larger than 23nm. Studies have shown that some newer engine technologies, such as Gasoline Direct Ignition (GDI) engines and Compressed Natural Gas engines, emit solid particles in the 10 to 23nm range. The next phase of particle number regulations (post-Euro 6/VI) will lower the particle size threshold from 23nm to 10nm.

Whether you are developing a new engine, tuning an existing engine to optimize emissions, or evaluating the performance of a diesel or gasoline particulate filter, the new Engine Exhaust Particle Measurement System is the ideal tool for the accurate measurement of the size distribution and number concentration of solid particles coming from any type of engine.

  Application Application Challenges 
Comply with upcoming Sub-23nm PN regulations Post Euro 6/VI PN regulations will reduce lower particle size to 10nm, so engines will need to be tested for total solid particle number emissions for particles larger than 10nm
Increased particle emissions during cold start Real Driving Emission (RDE) Testing will include a cold start event in the test procedure. This will require aftertreatment systems optimization and new engine calibration
Performance of DPF/GPF devices DPF/GPF filters have variable performance as a function of loading, and can have high particle emissions during regeneration events
Brake particle emissions As engines get cleaner, particle emissions from other sources, such as brakes and tires, will contribute a larger fraction of the total vehicle emissions
Aircraft turbine emissions New international regulations (CAEP/11) for particle emissions from aircraft engines include limits for the number of solid particles larger than 10nm
Non-road machinery emissions Stage V regulations for non-road machinery (diesel and spark ignition engines) regulate solid particle number emission limits for several engine categories

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