Design and Verification of Portable PM2 . 5 Detection Cutter
LI Zhengzhen
Abstract：The particles, especially those with aerodynamic diameter less than or equal to a nominal 2. 5 μm (PM2. 5) will cause serious harm to the human health, and its concentration is one of the main indexes for evaluating the environmental air quality, so the particle measurement needs a portable cutter. First, the impact design criteria was used for calculating the Stokes number, then the parameter model was established with Fluent6. 3, and finally, baed on this design, a cutter sample was manufactured and test was made on it according to the national standards. The test proved that the fitting curve of the collection efficiency obtained by this sample met the national standard and design requirements.
Keywords：small flowimpactPM2. 5 cuttercollection efficiency
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 32-34,38 )