Numerical analysis of the close-contact heat transfer of the electro-thermal drilling probes for glacier-ice exploration

2021 ◽  
Vol 35 (3) ◽  
pp. 1309-1317
Author(s):  
Ui-Joon Park ◽  
Kwangu Kang ◽  
Hyung Ju Lee ◽  
Chan Ho Jeong ◽  
Jin-Yeong Park ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Analysis ◽  
Close Contact ◽  
Contact Heat ◽  
Contact Heat Transfer ◽  
Thermal Drilling ◽  
Glacier Ice

Hydrodynamic Features of Contact Heat-Transfer Packing Devices

1997 ◽  
Vol 28 (4-6) ◽  
pp. 393-397
Author(s):  
N. Yu. Koloskova ◽  
V. V. Dubrovskaya ◽  
V. V. Orlyanskii
Keyword(s):  
Heat Transfer ◽  
Contact Heat ◽  
Contact Heat Transfer

Heat Transfer Model in a Rotary Drum During the Fermentation Process

2020 ◽  
Vol 77 (1) ◽  
pp. 151-160
Author(s):  
Norazaliza Mohd Jamil ◽  
Aainaa Izyan Nafsun ◽  
Abdul Rahman Mohd Kasim
Keyword(s):  
Heat Transfer ◽  
Mathematical Model ◽  
Heat Transfer Coefficient ◽  
Fermentation Process ◽  
Transfer Model ◽  
Kutta Method ◽  
Contact Heat ◽  
Contact Heat Transfer ◽  
Runge Kutta Method ◽  
Rotary Drum

A new mathematical model describing heat transfer during the fermentation process in a rotary drum is proposed. The model includes representations of the kinetic reactions, the temperature of the solid bed, and physical structures within the rotary drum. The model is developed using five ordinary differential equations and was then solved using the Runge-Kutta method embedded in MATLAB software. A reasonable behaviour for the temperature profile to the fermentation process is achieved. The results show that the mass of the solid bed, contact heat transfer coefficient, and the wall temperature has a significant effect on the fermentation process in a rotary drum.

Development of an Equipment Model in Chlorine Liquefaction Process

2018 ◽  
Vol 769 ◽  
pp. 371-376 ◽  
Author(s):  
Elena Alexandrovna Muravyova ◽  
Alexander Ivanovich Kubryak
Keyword(s):  
Heat Transfer ◽  
Mathematical Model ◽  
Control System ◽  
Central Position ◽  
Contact Heat ◽  
Contact Heat Transfer ◽  
Equipment Unit ◽  
Liquefaction Process ◽  
Further Development ◽  
Heat Carriers

The article describes the development of a mathematical model for a condenser-evaporator, which occupies a central position in chlorine liquefaction process. The model describes the key processes in the equipment unit: freon evaporation, chlorine condensation, change in freon level and in equipment pressure. The model is based on the equations characterizing the processes mentioned above, which makes it possible to use the model for design and calculations of non-contact heat transfer equipment with phase transitions of heat carriers of various characteristics. The simulation was carried out with the aim of further development of a condenser-evaporator control system.

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