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http://dx.doi.org/10.11629/jpaar.2014.10.3.093

Development and Evaluation of Hy-CPC  

Lee, Hong-Ku (Department of Mechanical Engineering, Hanyang University)
Hwang, In-Kyu (Department of Mechanical Engineering, Hanyang University)
Ahn, Kang-Ho (Department of Mechanical Engineering, Hanyang University)
Publication Information
Particle and aerosol research / v.10, no.3, 2014 , pp. 93-97 More about this Journal
Abstract
Condensation particle counter (CPC) has been one of the most important basic instrument for measuring number concentration of submicron aerosols. The principle of the CPC is to expose aerosols to a supersaturated vapor and cool down which causes adiabatic expansion. The particles grow by heterogenous nucleation to a sufficient size for easy detection by optical method. However, for growth by condensation, CPC essentially needs both saturater and condensor causing a heavy system. Therefore, it is hard to install commercial CPC to tethered balloon package system. In this study, we developed customized CPC for tethered balloon package system called Hy-CPC which is lighter and smaller in structure than commercial CPCs, and evaluated activation efficiency and detection efficiency by Hy-CPC using electrostatic method (electrometer and Faraday cup).
Keywords
CPC; DMA; Electrometer; Faraday Cup; Saturation Ratio; Activation Efficiency; Calibration;
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