Advanced Aerosol Separator for PM2.5 Chemical Composition and Size Distribution Analysis
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We report on progress made in the design of compact NanoJet Flow Cell (NJFC), its operational stability and integration with both the JPL Micro-Electro-Mechanical Systems (MEMS) Piezoelectric Valve (PV) and the vacuum-compatible Light Optical Aerosol Counter and Sizer (LOAC). The apparatus will be differentially pumped and attached to a 3D printed non-corrosive vacuum chamber for Residual Gas Analysis (RGA). The aerosol separator will be used in real-time monitoring of aerosol particles in the ambient air at a wide range of pressures, by optically determining their refractory nature (solid vs. liquid, spherical vs. complex morphology) and size distribution. When vaporized on the RGA’s hot filament, aerosol particles can be analyzed for their chemical composition using Mass Spectrometry (MS) methods. Cyclone separator will be used to recycle the carrier (sheath) gas and examine the aerosol separator susceptibility to clogging as a function of the purity of the sheath gas. Optimal gas flow rates and operational parameters will be tuned to provide the highest possible transmissions for PM2.5 aerosols detrimental to the human respiratory system.
Description
Marcelino Essien, Integrated Deposition Solutions (IDS), Inc., US
Fa-Gung Fan, Integrated Deposition Solutions (IDS), Inc., US
Nicolas Verdier, Centre National d’Etudes Spatiales (CNES), FR
Jean-Baptiste Renard, Le Laboratoire de Physique et de Chimie de l'Environnement et de l'Espace (LPC2E)-Centre national de la recherche scientifique (CRNS), FR
Jurij Simcic, National Aeronautics and Space Administration (NASA) Jet Propulsion Laboratory (JPL), California Institute of Technology, US
Dragan Nikolic, National Aeronautics and Space Administration (NASA) Jet Propulsion Laboratory (JPL), California Institute of Technology, US
ICES205: Advanced Life Support Sensor and Control Technology
The proceedings for the 2020 International Conference on Environmental Systems were published from July 31, 2020. The technical papers were not presented in person due to the inability to hold the event as scheduled in Lisbon, Portugal because of the COVID-19 global pandemic.