Growth Characteristics of Aerosols in a Laminar Flow Tube Reactor

Flow reactors can be used to adjust the composition of aerosol particles if at least one of the components is volatile. Of course, the necessary thermodynamic boundary conditions in particular a defined vapour pressure level over the surface (or a part of the surface) have to be maintained along the reactor. In the case of water as one of the most important aerosol components this condition can be achieved by a surface covered with a solution of the desired water activity. Therefore, such reactor can be used to adjust particles produced either by dispersion of a diluted solution or in a preceding flow reactor by gas-toparticle conversion to a defined water content.