/ 153 PARTICLE GENERATION Time min Burner Out VPR Out Dilution Bridge Out AVL Particle Generator Particle number measurement is the new requirement for certification measurements according to Euro 5/6 and EURO VI. In addition to the legal requirements of an annual device calibration, on-site quality checks of critical components such as the dilution system and the particle number counter are highly recommended. Apart from particle number checks, there is also a demand for on-site verification of other particle measurement devices. Those requirements necessitate a particle generator with: • adjustable dilution over a wide dilution range • adjustable particle sizes FUNCTIONAL PRINCIPLE The AVL Particle Generator is a stand-alone device for generating a pre-conditioned combustion aerosol. Aerosol particles are first formed during combustion of propane and then pre-treated and diluted in an integrated Volatile Particle Remover system. The pre-treatment process stabilizes particle size and number concentration while ensuring reduction of volatile and semi-volatile particles. A further dilution stage with a dilution bridge can decrease the concentration to very low levels. The three dilution stages allow a wide range of applications that require different concentrations and size distributions. An integrated touch-screen display Concentration #/cm3 1.50E+08 1.50E+07 1.50E+06 1.50E+05 1.50E+04 0 10 20 30 40 50 60 70 The figure shows the aerosol stability of the three available sample outlets. and four pre-adjusted operating points ensure straightforward and fast operation. The pre-adjusted operating points and the recommended applications are based on many years of AVL expertise in the field of particulate measurements. APPLICATIONS • On-site quality checks of particle counting devices – Particle Concentration Reduction Factor check – Particle Number Counter linearity check – Particle Number Counter cut-off check • Comparison measurement of Micro Soot Sensors and PM-PEMS devices BENEFITS AT A GLANCE • Generation of pre-conditioned combustion aerosol • Wide range of applications due to integrated dilution stages providing scalable concentrations • Pre-adjusted operating points for straightforward on-site quality checks of particle measurement devices • Utilization as stand-alone device • Integrated touchscreen for simplified operation
Solutions Katalog 2015_E
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