Condensation monodisperse aerosol generator TSI – CMAG 3475

generator-aerosolu-perex.jpg The generator is an advanced device for preparation of highly monodisperse liquid and/or solid aerosols of wide range of particle size and concentration. It is a modified Sinclair-LaMer generator, its principle is derived from controlled heterogeneous condensation; vapours of a suitable material condensate in a controlled fashion on small particles of sodium chloride which serve as condensation nuclei. Electrostatic Boltzman equilibrium of the particles is ensured via incorporation of electrical charge neutralizer krypton-85 based with activity of 370 MBq. For monitoring and recording of actual particle size and concentration, a process aerosol monitor Model TSI – PAM 3375 is employed.

Specification

  • compact, portable generator capable of producing particles size (aerodynamic diameter) ranging from 0.1 to 8 µm
  • adjustable particle concentration up to 106 particles/cm3, depending on their size
  • particles are monodisperse with standard geometric variation less than 1.1 for particles ranging from 0.1 to 8 µm
  • preparation of liquid and/or solid aerosols using substances such as DEHS, DOP, Carnauba Wax, Stearic Acid
  • possibility to prepare fluorescent or radioactive aerosols (tested at the department)
  • long-time continuous operation (up to several hours)

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Typical applications

  • filter testing
  • testing of smoke detectors functionality
  • aerosol source for measurement of deposition and studies on two-phase flow with accurately defined particle size
  • source of tracer particles for laser measuring methods employed in experimental research of fluid flow
  • assessment and calibration of other particle size measuring instruments
  • studies on human and/or animal exposition to aerosols

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References

  • Philip Morris Products S.A. (Flow field and aerosol deposition in casts of a human respiratory tract) (2014–2015)

Publications

Contact person

Jan Jedelsky, Ph.D., Associate Professor
phone: +420 54114 3266 | e-mail: jedelsky@fme_vutbr_cz

Energy Institute, Department of Thermodynamics and Environmental Engineering
Faculty of Mechanical Engineering, Brno University of Technology
Technicka 2896/2, 616 69 Brno, Czech Republic

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