Mathematical Modeling of Heat and Mass Transfer in Gas Absorption on a Drop of a Volatile Absorbent

2005 ◽  
Vol 39 (4) ◽  
pp. 379-384 ◽  
Author(s):  
A. G. Murav’ev
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Gas Absorption

scholarly journals Mathematical Modeling of Heat and Mass Transfer in Energy Science and Engineering 2014

2015 ◽  
Vol 2015 ◽  
pp. 1-3
Author(s):  
Zhijun Zhang ◽  
Hua-Shu Dou ◽  
Ireneusz Zbicinski ◽  
Zhonghua Wu ◽  
Jun Liu
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Science And Engineering ◽  
Energy Science

Math Modeling of Vacuum Conductive Timber Drying

2014 ◽  
Vol 1040 ◽  
pp. 478-483
Author(s):  
M. Goreshnev ◽  
E. Litvishko
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Mathematical Models ◽  
Heat And Mass Transfer ◽  
Block Diagram ◽  
Calculated Data ◽  
Math Modeling ◽  
Advantages And Disadvantages ◽  
Transfer Problems

The article is devoted to the mathematical modeling of vacuum conductive timber drying. Analysis of known mathematical models allowed revealing their advantages and disadvantages. The modeling block diagram based on the drying periods is proposed. Lykov’s equations have been selected to solve heat and mass transfer problems. The comparison of experimental and calculated data has been conducted.

Mathematical Modeling of Wood Drying from Heat and Mass Transfer Fundamentals

Drying ’85 ◽  
1985 ◽  
pp. 360-367 ◽  
Author(s):  
Mark A. Stanish ◽  
Gary S. Schajer ◽  
Ferhan Kayihan
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Wood Drying

Modeling of Simultaneous Gas Absorption and Evaporation of Large Droplet

2005 ◽  
Author(s):  
Tov Elperin ◽  
Andrew Fominykh ◽  
Boris Krasovitov
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Gaseous Phase ◽  
Method Of Lines ◽  
Material Balance ◽  
Liquid Interface ◽  
Rate Of Change ◽  
Gas Absorption ◽  
Gaseous Species ◽  
Essential Change

In this study we investigated numerically simultaneous heat and mass transfer during evaporation/condensation on the surface of a stagnant droplet in the presence of inert admixtures containing non-condensable solvable gas. The performed analysis is pertinent to slow droplet evaporation/condensation when Mach number is small (M≪1). The system of transient conjugate nonlinear energy and mass conservation equations was solved using anelastic approximation. Transport coefficients of the gaseous phase were calculated as functions of temperature and concentrations of gaseous species. Thermophysical properties of the liquid phase are assumed to be constant. Using the material balance at the droplet surface we obtained equations for Stefan velocity and the rate of change of the droplet radius taking into account the effect of solvable gas absorption at the gas-liquid interface. We derived also boundary conditions at gas-liquid interface taking into account the effect of gas absorption. The governing equations were solved using a method of lines. Numerical calculations showed essential change of the rates of heat and mass transfer in water droplet-air-water vapor system under the influence of solvable species in a gaseous phase. Consequently, the use of additives of solvable noncondensable gases to enhance the rate of heat and mass transfer in dispersed systems allows to increase the efficiency and reduce the size of gas-liquid contactors.

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