| Citation: | WU Y，KONG L，SUN Q Q，et al. Heat transfer path design and heat flow analysis of satellite phased array antenna[J]. Journal of Beijing University of Aeronautics and Astronautics，2023，49（5）：1127-1134 （in Chinese） doi: 10.13700/j.bh.1001-5965.2021.0373
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The crisscross heat pipe network was designed to convert the point heat source into a surface heat source in order to meet the heat rejection of multiple heat sources, high power dissipation, and large power density of the satellite phased array antennas, consisting of external heat pipes and embedded heat pipes, Additionally, U-shaped heat pipes coupling +Z panel and ±Y panel were used to strengthen the heat transfer between honeycomb panels, the satellite heat flow was analyzed by finite element model and experimentally verified. The simulation results show that the U-shaped heat pipes conduct 32.9% of the satellite phased array antennas heat dissipation, of which 66.6% is conducted to the +Y panel in the shaded region and 33.4% to the −Y panel in the sunlight region. According to the experimental findings, phased array antennas' temperatures meet interface requirements and the temperature differential between the heat pipes was less than 1 °C during the satellite's long-term peak operating mode. The heat pipe network meets the heat rejection of the satellite long-time peak working mode, the crisscross heat pipe network has been verified, and the U-shaped heat pipes couple +Z panel and ±Y panels, which solves the problem of insufficient heat rejection of single honeycomb panel.
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