Dynamics of heat mass exchange is in a layer of dispersed material during capsulation in a state of fluidizing

Authors

  • Ярослав Михайлович Гумницький National University "Lviv Polytechnic" Sq. St. George's 3/4, Lviv, Ukraine, 79013, Ukraine
  • Олег Антонович Нагурський National University "Lviv Polytechnic" Sq. St. George's 3/4, Lviv, Ukraine, 79013, Ukraine
  • Андрій Олегович Нагурський National University "Lviv Polytechnic" Sq. St. George's 3/4, Lviv, Ukraine, 79013, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2013.12431

Keywords:

Heat exchange, mass exchange, mass exchange surface, capsulation, physical model, dispersed materials, fluidized layer

Abstract

The article presents the results of studies of the complex heat mass exchange in a layer of dispersed material during the capsulation by film-forming solutions in a state of fluidization. We have singled out three conventional phases of the heat mass exchange with the irrigation of the solid material by the film-forming solution. It was shown that only a part of the surface of the solid material is involved into the heat mass exchange. We have worked out the equation to determine the combined coefficient of heat transfer from the air to the surface of a particle during the capsulation, depending on the height of the layer. We have determined the particle surface area, which is involved in the mass exchange. We have calculated the mass exchange intensity with the height of the layer of dispersed material. The adequacy of the mathematical model was checked by experimental data. The results can be used to calculate the technological parameters of the capsulation of solid dispersed materials in a state of fluidization and to improve the operation of the boiling bed devices

Author Biographies

Ярослав Михайлович Гумницький, National University "Lviv Polytechnic" Sq. St. George's 3/4, Lviv, Ukraine, 79013

Doctor of Technical Sciences, Professor


Department of Applied ecology and sustainable nature

Олег Антонович Нагурський, National University "Lviv Polytechnic" Sq. St. George's 3/4, Lviv, Ukraine, 79013

Ph.D., Associate Professor


Department of Applied ecology and sustainable nature

Андрій Олегович Нагурський, National University "Lviv Polytechnic" Sq. St. George's 3/4, Lviv, Ukraine, 79013

Student


Department of Applied ecology and sustainable nature

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Published

2013-04-25

How to Cite

Гумницький, Я. М., Нагурський, О. А., & Нагурський, А. О. (2013). Dynamics of heat mass exchange is in a layer of dispersed material during capsulation in a state of fluidizing. Eastern-European Journal of Enterprise Technologies, 2(8(62), 42–44. https://doi.org/10.15587/1729-4061.2013.12431

Issue

Vol. 2 No. 8(62) (2013): Energy-saving technologies and equipment

Section

Energy saving in industry

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Copyright (c) 2014 Ярослав Михайлович Гумницький, Олег Антонович Нагурський, Андрій Олегович Нагурський

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