Abstract
The generation of standard aerosol is of vital importance for the PM2.5 monitors calibration. In this work, a PM2.5 standard aerosol generator with high-pressure mixing kettle, crystal kettle and nozzle was developed based on the Particle from gas saturated solutions (PGSS) approach. The preliminary experiment on the generator showed that more than 90% of the aerosol particles were smaller than 2.5 μm in diameter. This work can provide a theoretical basis for the PM2.5 monitors calibration.
Highlights
College of Electromechanical Engineering, Qingdao University of Science & Technology, Qingdao 266061, China.The standard aerosol generation is important for the PM2.5 monitors calibration
Wang [11] had generated menthol / wax microcapsule from 2 μm to 30 μm. These above showed that Particle from gas saturated solutions (PGSS) is a better method for the PM2.5 standard aerosol generation with the advantage of controlling the diameter and distribution of the particles by only adjusting the temperature and pressure of the mixing kettle
Process based on the PGSS was developed, as well as a PM2.5 standard aerosol generator was designed in this paper
Summary
College of Electromechanical Engineering, Qingdao University of Science & Technology, Qingdao 266061, China.The standard aerosol generation is important for the PM2.5 monitors calibration. These above showed that PGSS is a better method for the PM2.5 standard aerosol generation with the advantage of controlling the diameter and distribution of the particles by only adjusting the temperature and pressure of the mixing kettle. Process based on the PGSS was developed, as well as a PM2.5 standard aerosol generator was designed in this paper.
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