Skip to main content

Posts

Showing posts with the label Changing the size of narrowly distributed aerosols

Effect of change in solution concentration

Changing the size of narrowly distributed aerosols: The size of narrowly distributed aerosols generated in the aerosols generator can be  controlled by controlling solution concentration (C c ) . , Minor flow rate (Q m )   and total flow rate (Q 1 ) .  Effect of change in solution concentration: The size of aerosols with narrow size distribution can be varied by changing the concentration  of liquid solution according to the relation. C c = V p /V d = d p 3 /d d 3 Where       C c = Solution concentration    V p = Volume of solute from which final particles are formed, V d = Volume of solvent  d p = Diameter of particle and d d = Diameter of droplet We know d d   because it is the cut off diameter of droplets in the virtual impactor . Forconstant  flow rate through the virtual impactor, the cut off diameter , d d , in the virtual impactor is  always constant. Hnece, depending on the final particles diameters , d