Open AccessEffects of External Heat Flux during Orbital Period of Spacecraft on Operating Characteristics of Loop Heat Pipe
Author(s) -
Tianjun Yang,
Shilei Zhao,
Teng Gao,
Zhiyuan Zhao,
Ping Zhang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1820/1/012089
Subject(s) - backflow , loop heat pipe , heat flux , mechanics , heat pipe , materials science , thermal , spacecraft , heat load , heat transfer , flux (metallurgy) , environmental science , thermodynamics , aerospace engineering , physics , mechanical engineering , engineering , metallurgy , inlet
Effects of external heat flux during orbital period on operating characteristics of loop heat pipe were discussed through a thermal vacuum experimental study based on the orbit of remote sensing satellite. Results demonstrate that changes external heat flux of orbit causes periodic fluctuation of temperature on the heat delivery surface of loop heat pipe (LHP), thus causing period changes of state of working media in the LHP. Changes of state of working media further lead to “backflow” of working media, thus causing adverse impacts on stable operation of LHP. The adverse effects of backflow on operation of LHP were verified through a thermal vacuum experiment. Research conclusions have high guidance to the in-orbit application of LHP.