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http://dx.doi.org/10.11629/jpaar.2013.9.3.133

Development and Performance Evaluation of Radial Exhaust Multi-port System for Real-time Particle Size Distribution Measurement  

Lee, Hong Ku (Department of Mechanical Engineering, Hanyang University)
Lee, Yang-Woo (Department of Mechanical Engineering, Hanyang University)
Jeon, Ki Soo (Department of Mechanical Engineering, Hanyang University)
Ahn, Kang-Ho (Department of Mechanical Engineering, Hanyang University)
Publication Information
Particle and aerosol research / v.9, no.3, 2013 , pp. 133-137 More about this Journal
Abstract
Measuring particle size distribution is one of the primary concerns in aerosol studies. For a nano-particle size distribution measurement, many scientists use a combination of a differential mobility analyzer (DMA) and a condensation particle counter (CPC) system, which is a called scanning mobility particle sizer (SMPS). Although it has a very high particle size resolution, some issues still remain. These problems include residence time between a DMA and a CPC, discontinuity of a CPC, and disturbance due to long scanning time during the precise measurement of particles. In particular, long scanning time is not adequate for measuring particle size distribution since the particle concentration is changing during the measurement. In this study, we developed radial exhaust multi-port system (REM-system) with no scanning time and high resolution to measure real-time particle size distribution. As a result of the REM-system performed using mono-disperse particle, it is expected that this system will be suitable for measuring continuously changing aerosol. If the counting efficiency of multi-condensation particle counter (M-CPC) and data inversion matrix are completed, REM-system will be a very adequate system for unsteady aerosol, which changes for SMPS scanning time.
Keywords
SMPS; DMPS; DMA; CPC; Size Distribution;
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