PARTICLE COUNTING / 174 SIMULATION SOLUTIONS TEST SYSTEM SOLUTIONS TESTING EQUIPMENT Dynamometers and Actuators Vehicle Testbeds Test Cell Mechanics and Control Rooms Media Conditioning Consumption Measurement Injection Testing Combustion Measurement Emission Analysis and Measurement In Vehicle Measurement SIMULATION TOOLS TESTING TOOLS CUSTOMER SERVICES The figure shows the results of an NEDC test with two different vehicles. The number of particles of vehicle A has significant peaks in comparison to vehicle B. Despite being the lowest concentrations, the emission differences can be measured with the AVL Particle Counter. APCplus – AVL Particle Counter BENEFITS AT A GLANCE • ADVANCED series and CERTIFICATION series for different applications • Low maintainance effort and intelligent device diagnostic especially designed for raw exhaust applications • Minimized particle losses and precise dilution for best reproducibility • Enhanced dilution range and dynamic data rates for specific R&D applications • Easy and flexible integration into the testbed automation system 600 800 1000 600 800 1000 Time s Engine A Engine B Engine A Engine B 1200 500 700 900 1100 Opacity Tailpipe Online Particle Number Online Vehicle Speed 100 200 300 400 Time s 1200 500 700 900 1100 Opacity Tailpipe Online Particle Number Online Vehicle Speed 100 200 300 400 The APCplus - next generation AVL Particle Counter measures the online particle number concentration of non-volatile particles in combustion engine exhaust. The exhaust can be sampled either at a full flow dilution tunnel (CVS) or a partial flow dilution system (PFDS), or directly with a heated line at the tailpipe on an engine testbed. The APCplus complies with the legal requirements of UN-ECE R83 and R49 and is the ideal tool for specific R&D applications. MEASUREMENT PRINCIPLE The counting of particles with a condensation particle counter according to PMP requires a complex conditioning system (volatile particle remover, VPR) consisting of two dilution stages which provide a high and stable dilution and an evaporation tube to remove all the volatile particles. The first dilution stage is the core of such a system and, therefore, AVL has developed a chopper diluter to ensure a very high, size-independent dilution which also makes it possible to use the system to sample from raw exhaust gas during R&D. Particle losses are minimized by mounting this diluter immediately at the sample position. Due to the special design of the VPR, it is also easy to clean and the purging of the system is done automatically during startup. APPLICATION • Certification according to UN-ECE-R83 and UN-ECE-R49 procedure • Applications in research and development • Applicable on engine and chassis dynos • Sampling from CVS systems, partial flow dilution tunnels or directly from raw exhaust • Suitable for diesel and gasoline engines
Solutionskatalog2016_EN
To see the actual publication please follow the link above