Loop Heat Pipes in Thermal Control Systems for “OBZOR” Spacecraft

1995 ◽  
Author(s):  
K. A. Goncharov ◽  
M. N. Nikitkin ◽  
O. A. Golovin ◽  
Yu. G. Fershtater ◽  
Yu. F. Maidanik ◽  
...  
Keyword(s):  
Control Systems ◽  
Heat Pipes ◽  
Thermal Control ◽  
Loop Heat Pipes

Response of Loop Heat Pipes to Transient Heat Loads

1999 ◽  
Author(s):  
J. B. Long ◽  
J. M. Ochterbeck
Keyword(s):  
Heat Pipe ◽  
Control Systems ◽  
Heat Pipes ◽  
Thermal Control ◽  
Loop Heat Pipe ◽  
Loop Heat Pipes ◽  
Power Inputs ◽  
Cyclic Heat ◽  
Lower Limits ◽  
Heat Loads

Abstract Loop heat pipes currently are being used in the thermal control systems for satellites. To expand possible loop heat pipe applications, information regarding response to transient heat inputs is required. In this investigation, two loop heat pipes with dual compensation chambers were subjected to heat inputs of varying magnitude, frequency, and waveform (square and sinusoidal). The performance of each loop heat pipe under these conditions was evaluated in different gravitational orientations. The upper and lower limits of heat transport also were assessed. A principle finding was that cyclic heat loads tended to aid startup of the loop heat pipes at the low power inputs.

Thermal Control with Low Power, Miniature Loop Heat Pipes

1999 ◽  
Author(s):  
Walter B. Bienert ◽  
William J. Krotiuk ◽  
Michael N. Nikitkin
Keyword(s):  
Low Power ◽  
Heat Pipes ◽  
Thermal Control ◽  
Loop Heat Pipes

scholarly journals Simulation of the thermal control system of nanosatellite using the loop heat pipes under the orbital flight conditions

2021 ◽  
Vol 22 (1) ◽  
pp. 23-35
Author(s):  
Yu Wang ◽  
Oleg V. Denisov ◽  
Liliana V. Denisova
Keyword(s):  
Control System ◽  
Thermal Regime ◽  
Thermal Power ◽  
Heat Removal ◽  
Heat Pipes ◽  
Thermal Control ◽  
Thermal Design ◽  
Loop Heat Pipes ◽  
Thermal Control System ◽  
Design Power

One of the key problems in the development of nanosatellites is to provide a given temperature range for the operation of the on-board computer. The constantly increasing information load leads to the need to use more advanced processors with high thermal design power (TDP). The indicated thermal regime of processors can be achieved using remote heat removal systems - miniature loop heat pipes. Using a model of nanosatellite as an example, a thermal control system with miniature loop heat pipes is designed. The simulation was carried out in the Siemens NX program in the elliptical and geostationary orbits of the Earth. The cooling schemes of the processor with a thermal power of 15 W using one and two loop heat pipes are considered. Calculations showed that the use of loop heat pipes can reduce the processor temperature to acceptable values. The anisotropy of the thermal conductivity coefficient in the reinforcement plane of the composite material of the nanosatellite case can have a significant effect on the temperature of the processor. This opens up prospects for the use of anisotropic composite materials to ensure the thermal regime of the nanosatellite.

scholarly journals Gravity-assist heat pipes for thermal control systems

1975 ◽  
Author(s):  
J.E. Deverall ◽  
E.S. Keddy ◽  
J.E. Kemme ◽  
J.R. Phillips
Keyword(s):  
Control Systems ◽  
Heat Pipes ◽  
Thermal Control ◽  
Gravity Assist

Development of Flat-Plate Loop Heat Pipes for Spacecraft Thermal Control

2019 ◽  
Vol 31 (4) ◽  
pp. 435-443 ◽  
Author(s):  
Hongxing Zhang ◽  
Guoguang Li ◽  
Ling Chen ◽  
Guanglong Man ◽  
Jianyin Miao ◽  
...  
Keyword(s):  
Flat Plate ◽  
Heat Pipes ◽  
Thermal Control ◽  
Loop Heat Pipes ◽  
Spacecraft Thermal Control
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