Investigation of the thermophysical characteristics of cryogenic heat pipes with a metal-fiber wick

1978 ◽  
Vol 35 (1) ◽  
pp. 797-801 ◽  
Author(s):  
M. G. Semena ◽  
A. I. Levterov
Keyword(s):  
Heat Pipes ◽  
Metal Fiber ◽  
Thermophysical Characteristics

Investigation of the thermophysical characteristics of low-temperature heat pipes with metal fiber wicks

1976 ◽  
Vol 31 (3) ◽  
pp. 1044-1048 ◽  
Author(s):  
M. G. Semena ◽  
A. G. Kostornov ◽  
A. N. Gershuni ◽  
V. K. Zaripov ◽  
A. L. Moroz
Keyword(s):  
Low Temperature ◽  
Heat Pipes ◽  
Metal Fiber ◽  
Thermophysical Characteristics ◽  
Temperature Heat

scholarly journals Research of Operation Factors of the of Bullerjan Stove in the Program Environmentfor 3D Simulation

2018 ◽  
Vol 7 (4.3) ◽  
pp. 350
Author(s):  
A. Kagramanyan ◽  
A. Onishchenko ◽  
J. Babichenko ◽  
A. Podoprigora
Keyword(s):  
Temperature Distribution ◽  
Heat Pipe ◽  
3D Modeling ◽  
Thermal Power ◽  
Flow Simulation ◽  
Heat Pipes ◽  
3D Simulation ◽  
Heat Output ◽  
Thermophysical Characteristics ◽  
Airflow Velocity

The article is devoted to the calculation of the thermal power of the Bullerjan stove according to a preconstructed model, which is realized in the 3D modeling environment of SolidWorks 2016. The thermophysical characteristics of the processes passing through the heat pipes of the Bullerjan stove were studied in detail. In the course of the work, the values of airflow velocity and temperature distribution, the temperature distribution of a solid, the surface of the heat pipe, that in the end allowed us to obtain the values of the heat output of the oven. The obtained data made it possible to determine the value of the heat output of the oven on the mode of smoldering wood and on the mode of flaming burning. The thermal power of a Bullerjan stove and in particular, its flow simulation module for modeling the flow of liquids and gases were obtained. 

scholarly journals Skeletal heat conductivity of porous metal fiber materials

2021 ◽  
Vol 27 (2) ◽  
pp. 70-77
Author(s):  
A.G. Kostornov ◽  
◽  
A.A. Shapoval ◽  
I.V. Shapoval ◽  
◽  
...  
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Porous Materials ◽  
Porous Metal ◽  
Heat Pipes ◽  
Metal Fiber ◽  
Two Phase ◽  
Research Results ◽  
Fiber Materials ◽  
Two Phase Heat Transfer

The influence of a number of physical characteristics and parameters of metallic fiber materials on their thermal conductivity is studied in this work. Such porous materials are intended, among other things, for their effective use in two-phase heat transfer devices (heat pipes). The use of heat pipes in aircraft and space vehicles provides a number of thermophysical advantages. In particular, heat pipes significantly expand the possibilities of air cooling of heat-loaded technical devices. The thermal conductivity of capillary-porous materials-structures, which are important elements of heat pipes, significantly affects the intensity of two-phase heat transfer inside heat pipes. Frame thermal conductivity is equivalent to the thermal conductivity of materials that are conditionally continuous medium. Studies of the influence of structural characteristics of porous materials, such as porosity and parameters (dimensions) of discrete particles-fibers (fractions of the studied materials), were performed using special experimental equipment created at the I.M. Frantsevich Institute for Problems of Materials Science of the National Academy of Sciences of Ukraine (Kyiv). Porous metal structures (coatings) made of copper, nickel, and steel fibers (MPM) were investigated under conditions similar to those for space heat pipes. The porosity values ​​of the prototypes of materials were in the range of 40 to 93%. The research results showed that the following physical characteristics of capillary structures, such as values ​​of thermal conductivity of metallic materials (fiber fractions), the porosity of capillary-porous metal materials (structures), significantly affect the value of thermal conductivity of porous materials. The dimensions of discrete particles-fibers also affect in a certain way the value of the MBM thermal conductivity but to a lesser degree. The results obtained in this work are summarized in the form of empirical dependencies – formulas, providing engineering calculations of the thermal conductivity values ​​of metal fiber materials. The research results are intended for practical application in aviation and spacecraft apparatus engineering. In particular, the presented results are necessary for the development and creation of effective heat pipes with metal fiber capillary structures.

Effect of parameters of metal fiber capillary structures on maximum heat transport by heat pipes

1982 ◽  
Vol 43 (4) ◽  
pp. 1116-1120
Author(s):  
M. G. Semena ◽  
A. N. Gershuni
Keyword(s):  
Heat Transport ◽  
Heat Pipes ◽  
Metal Fiber ◽  
Maximum Heat

Maximum heat flux in planar metal-fiber wicks under conditions typical of heat pipes

1978 ◽  
Vol 35 (5) ◽  
pp. 1272-1277
Author(s):  
A. P. Ornatskii ◽  
M. G. Semena ◽  
V. I. Timofeev
Keyword(s):  
Heat Flux ◽  
Heat Pipes ◽  
Metal Fiber ◽  
Maximum Heat ◽  
Maximum Heat Flux

scholarly journals Improving the of Thermophysical Characteristics of Heat Pipes

2017 ◽  
Vol 10 (3) ◽  
pp. 372-376 ◽  
Author(s):  
Vladimir A. Kulagin ◽  
◽  
Nikita Yu. Sokolov ◽  
Keyword(s):  
Heat Pipes ◽  
Thermophysical Characteristics
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