Fine particle generation in thermal plasma for resuspension studies in the STORM projectFunded under: JRC-REACTSAFE 6C
Simplified tests on resuspension mechanisms are performed at the JRC in the STORM project. A reliable, reproducible and efficient means of generating representative condensation particles is needed. Studies to optimise the yield and to control the particle size distributions of a plasma torch have been carried out. SEM analysis and impactor measurements of the produced material reveal agglomeration of primary particles (d < 50 nm). The aerodynamic diameters of the agglomerates have been measured to be mainly in the range of 0.1-10 micron based on mass distribution. A coarse fraction having a GMMD of 30-40 micron exists when the quench gas is let to interact directly with the flame. The distribution of these heavier particles in a turbulent flow through a pipe is even and typical for inertial deposition. The fine and coarse fractions represent 22 % and 54 %, respectively, the remaining 24 % being molten tin found near to the torch exit.
Bibliographic Reference: Paper presented: European Aerosol Conference, Helsinki (FI), September 18-22, 1995
Availability: Available from (1) as Paper EN 39007 ORA
Record Number: 199510739 / Last updated on: 1995-07-07
Original language: en
Available languages: en