Computational Fluid Dynamics Analysis of the Venturi Dustiness Tester.

ABSTRACT: Dustiness quantifies the propensity of a finely divided solid to be aerosolized by a prescribed mechanical stimulus. Dustiness is relevant wherever powders are mixed, transferred or handled, and is important in the control of hazardous exposures and the prevention of dust explosions and product loss. Limited quantities of active pharmaceutical powders available for testing led to the development (at University of North Carolina) of a Venturi-driven dustiness tester. The powder is turbulently injected at high speed (Re ~ 2 × 10⁴) into a glass chamber; the aerosol is then gently sampled (Re ~ 2 × 10³) through two filters located at the top of the chamber; the dustiness index is the ratio of sampled to injected mass of powder. Injection is activated by suct

SUBMITTER: Dubey P 

PROVIDER: S-EPMC5476224 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature