Aerosol generation from silicon carbide particles over prolonged durations

Somik Chakravarty (1, 2) , Marc Fischer (2) , Olivier Le-Bihan (1) , Martin Morgeneyer (2)

1 INERIS - Institut National de l'Environnement Industriel et des Risques
2 TIMR - Transformation Intégrée de la Matière Renouvelable

SiC powders have recently been used as a heat transfer and storage fluid (HTF) for concentrated solar thermal plants (CSP) for its excellent physical and mechanical properties (high strength, durability and heat capacity) (García-Trinanes et al., 2016). However, the pneumatic or mechanical conveying of the powder across different sections of the solar thermal plant releases aerosol particles due to the stresses generated from particle-particle and particle wall-interactions. This study analyses the effect of time-scale on powder dust generation while considering the effect of dustiness testing on the particle and bulk properties. Based on the time-evolution of dust generation, we propose stages of dust generation mechanisms which can possibly provide explanations concerning the emission of dust and its subsequent effect on physical properties of the powder sample...

Keywords: AEROSOLIZATION; GENERATION MECHANISM; SILICON CARBIDE PARTICLES; VORTEX SHAKER

Domains: Environmental Sciences

Somik Chakravarty, Marc Fischer, Olivier Le-Bihan, Martin Morgeneyer. Aerosol generation from silicon carbide particles over prolonged durations. European Aerosol Conference (EAC 2019), Aug 2019, Gothenburg, Sweden. ⟨ineris-03237752⟩