Evaporation loss of ammonium nitrate particles during filter sampling
作者： Yu-Hsiang Cheng , Chuen-Jinn Tsai
DOI: 10.1016/S0021-8502(97)00033-5
关键词: Porosity 、 Pressure drop 、 Saturation ratio 、 Analytical chemistry 、 Particle diameter 、 Mineralogy 、 Ammonium nitrate 、 Dispersity 、 Chemistry
摘要: Abstract This study examines the evaporation loss of submicron, monodisperse ammonium nitrate particles during filter sampling when upstream saturation ratio is zero. The proposed model has considered particle concentration, porosity bed, diameter, temperature, pressure drop. According to present results, concentration heavily influences particles. Theoretical results agree reasonably well with experimental data obtained in laboratory under well-controlled conditions. Results presented herein confirm that simplified theory by Zhang and McMurry (1992) provides a reasonable yet somewhat lower collection efficiency volatile species owing assumptions downstream
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