Mathematical Modeling of Dispersed Condensed Substance Ignition by Local Energy Source

2014 ◽  
Vol 1040 ◽  
pp. 489-494
Author(s):  
Dmitrii O. Glushkov ◽  
Genii V. Kuznetsov ◽  
Pavel A. Strizhak
Keyword(s):  
Mathematical Modeling ◽  
Energy Source ◽  
Mass Transfer ◽  
Ignition Delay Time ◽  
Condensed Substance ◽  
Local Energy ◽  
Transfer Processes ◽  
Mass Transfer Processes ◽  
Particle Parameters ◽  
Numerical Research

Numerical research of heat and mass transfer processes at dispersed condensed substance ignition by metallic particle heated to high temperatures was developed. It was established the influence of “hot” particle parameters on the main integrated characteristic of process – ignition delay time.

Numerical Research of Heat and Mass Transfer Processes in Water Vapors and Gaseous Thermal Decomposition Products Mixture above the Combustible Wood on the Conditions of Chemical Reaction Termination in it

2014 ◽  
Vol 1040 ◽  
pp. 535-540
Author(s):  
Alena O. Zhdanova ◽  
Genii V. Kuznetsov ◽  
Pavel A. Strizhak
Keyword(s):  
Mass Transfer ◽  
Thermal Decomposition ◽  
Heat And Mass Transfer ◽  
Decomposition Reaction ◽  
Decomposition Products ◽  
Transfer Processes ◽  
Water Vapors ◽  
Mass Transfer Processes ◽  
Thermal Decomposition Products ◽  
Numerical Research

The numerical analysis has been made of complex interrelated heat and mass transfer processes, chemical reactions and phase transformations under the thermal decomposition reaction suppression of typical combustible wood (needles of a pine, fir, fir-tree and larch, branches of a pine, fir, birch and larch, cones of a pine, leaves of aspen) by the “water slug” trace. Characteristic times have been calculated of the thermal decomposition reaction suppression of typical combustible wood at typical temperatures in “water slug” trace and the thickness of warmed material layers.

scholarly journals Mathematical modeling of ignition of coal-water slurries particles coated with water film

2018 ◽  
Vol 194 ◽  
pp. 01001 ◽  
Author(s):  
V.G. Afanaseva
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Water Film ◽  
Film Evaporation ◽  
Evaporation Temperature ◽  
Transfer Processes ◽  
Fuel Layer ◽  
Ignition Dynamics ◽  
Mass Transfer Processes ◽  
Thermal Preparation

The results of the mathematical modeling of heat and mass transfer processes occurring jointly with ignition of coal-water slurries particles covered with a water film are presented. It is shown that water film thickness can have a significant effect on the ignition dynamics. In addition, it was found out that the main fuel layer is heated to the evaporation temperature during water film evaporation. As a result, following processes of thermal preparation (evaporation of moisture, thermal decomposition) occur faster.

Mathematical modeling of timber elastic-viscous-plastic deformation in the wood drying process

10.12737/4522 ◽  
2014 ◽  
Vol 4 (2) ◽  
pp. 166-177
Author(s):  
Соколовский ◽  
Yaroslav Sokolovskiy ◽  
Крошный ◽  
Igor Kroshnyy ◽  
Прусак ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Plastic Deformation ◽  
Porous Materials ◽  
Heat Mass Transfer ◽  
Drying Process ◽  
Transfer Processes ◽  
Mass Transfer Processes ◽  
Mechanics Characteristics ◽  
A Current

In the paper there is described solving a current scientific problem of mathematical modeling of heat-mass transfer processes and elastic-viscous-plastic deformation taking into account the mechanics and sorption creep in hygroscopic capillary-porous materials with variable anisotropic heat and mechanics characteristics what is of importance for the rational choice and substantiation of energy conservative technologies of timber drying under the conditions of necessary qualitative production providing.

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