Separation Efficiency of the Heat–Mass Transfer Apparatuses with Jet-Film Contact Devices

  • A. V. DmitrievEmail author
  • I. N. Madyshev
  • O. S. Dmitrieva
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


The drop entrainment of condensed moisture by gas or vapor is often observed during operation of different electric power units and heat–mass transfer apparatuses. This moisture gets into the vapor flow at a fragmentation of liquid during the process of bubbling, as well as breakup of jets and disruption of the vapor bubbles’ skin. The use of heat–mass transfer contact devices with great separation ability at high loads both of the gas and liquid phases is very promising as it eliminates the need for additional separating devices. A comparative analysis of various design and duty parameters of the operation of jet-film contact devices shows that the greatest separation efficiency corresponds to the contact elements with additionally installed bottom boards. The studies revealed that the impact of the scale effect on the separation efficiency can be neglected, if the diameters of dispersed particles do not exceed 5 μm. The conducted studies on determination of separation efficiency of aerosol particles in the apparatuses with jet-film contact devices will allow correcting the known mathematical descriptions of turbulent settling of dispersed particles in order to use them in calculations for engineering design of new contact devices.


Heat and mass transfer Contact device Efficiency Separation 



The reported study was funded by RFBR, according to the research project No. 16-38-60081 mol_a_dk.


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • A. V. Dmitriev
    • 1
    Email author
  • I. N. Madyshev
    • 2
  • O. S. Dmitrieva
    • 2
  1. 1.Kazan State Power Engineering UniversityKazanRussia
  2. 2.Kazan National Research Technological UniversityKazanRussia

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