MATHEMATICAL MODELING OF HYDRODYNAMIC AND MASS-TRANSFER PROCESSES IN THE EXTRACTOR “CROWN-MODEL”

2019 ◽  
Vol 56 ◽  
pp. 16-38
Author(s):  
V.G. Krioukov ◽  
◽  
F.K. Khaliullin ◽  
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Transfer Processes ◽  
Mass Transfer Processes

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.

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.

MATHEMATICAL MODELING OF THE PROCESS OF LOW TEMPERATURE DRYING IN THE INSTALLATION WITH REGENERATIVE CYCLE

2019 ◽  
Author(s):  
Ю.С. Беззаботов ◽  
Е.О. Ивченко
Keyword(s):  
Mathematical Modeling ◽  
Mass Transfer ◽  
Low Temperature ◽  
Heat Pumps ◽  
System Of Equations ◽  
Regenerative Heat ◽  
Transfer Processes ◽  
Mass Transfer Processes ◽  
Low Temperature Drying ◽  
Regenerative Cycle

Рассмотрено применение в установках низкотемпературной сушки (УНТС) с регенеративным циклом компрессорных термотрансформаторов (тепловых насосов). На основании выбранной модели выполнено математическое моделирование процессов в виде системы уравнений. Получены аналитические расчеты зависимости тепломассообменных процессов. Установлено, что в интервале изменений параметров работы сушильной установки более эффективной является УНТС с расположением регенеративного теплообменника до конденсатора. The application of compressor thermotransformers (heat pumps) in installations of low temperature drying (LTD) plants is considered. Considerable attention is paid to LTD with regenerative cycle. On the basis of the selected model, mathematical modeling of processes in the form of a system of equations, the solution of which allowed obtain analytical calculations of the dependence of heat and mass transfer processes was received. It was found that in the range of parameters of the drying plant LTD with the location of the regenerative heat exchanger to the condenser is more effective.

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