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Temperature Responses to External Heat Fluxes of the Power Distribution System on Alpha Magnetic Spectrometer

  • YANG Fei ,
  • DU Wenjing ,
  • MEDVEDEVA Tatiana ,
  • CHENG Lin ,
  • SUN Qie
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  • 1. Institute of Thermal Science and Technology, Shandong University, Ji’nan 250061, China
    2. School of Energy and Power Engineering, Shandong University, Ji’nan 250061, China
    3. Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge MA02139, US
    4. Shandong Institute of Advanced Technology, Ji’nan 250100, China

网络出版日期: 2023-12-01

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022

Temperature Responses to External Heat Fluxes of the Power Distribution System on Alpha Magnetic Spectrometer

  • YANG Fei ,
  • DU Wenjing ,
  • MEDVEDEVA Tatiana ,
  • CHENG Lin ,
  • SUN Qie
Expand
  • 1. Institute of Thermal Science and Technology, Shandong University, Ji’nan 250061, China
    2. School of Energy and Power Engineering, Shandong University, Ji’nan 250061, China
    3. Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge MA02139, US
    4. Shandong Institute of Advanced Technology, Ji’nan 250100, China

Online published: 2023-12-01

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022

摘要

阿尔法磁谱仪(AMS)的配电系统(PDS)频繁出现高温预警。为探明原因,本文建立了国际空间站(ISS)普通运行工况和特殊运行工况下AMS PDS的理论热流模型。基于该模型,研究了PDS处的热流变化及温度响应,评估了ISS特殊操作对PDS外热流的影响。结果表明,当β角为-25°时PDS处的总外热流达到最大,这也正是-25°β角附近PDS高温预警频繁发生的根本原因。在ISS普通运行工况下,PDS的温度响应迟滞从116秒到230秒不等。当ISS执行特殊操作时,锁定ISS太阳能电池板对PDS的外热流和温度影响最大,可引起PDS的轨道平均温度下降1.7℃。当ISS同期执行多项特殊操作时,锁定ISS太阳能电池板并同期调整ISS的飞行姿态发生次数最多,对PDS的温度影响也最大,可引起PDS的峰值温度变化2.5℃。

本文引用格式

YANG Fei , DU Wenjing , MEDVEDEVA Tatiana , CHENG Lin , SUN Qie . Temperature Responses to External Heat Fluxes of the Power Distribution System on Alpha Magnetic Spectrometer[J]. 热科学学报, 2022 , 31(3) : 802 -815 . DOI: 10.1007/s11630-022-1635-4

Abstract

High-temperature warnings frequently occurred at the Power Distribution System (PDS) of the Alpha Magnetic Spectrometer (AMS). To investigate the fundamental reasons, a theoretical model for the AMS PDS was established under the International Space Station (ISS) normal and special operating conditions. With the model, the study investigated the external heat fluxes and the temperature responses of the PDS. The effects of ISS special operations on the PDS’s thermal environment were also investigated. Results reveal that the total external heat flux at the PDS reaches its maximum value when the angle β is around –25°, where high-temperature warning frequently occurs. Under the ISS normal operating condition, the temperature response hysteresis at the PDS varies from 116 s to 230 s. When the ISS performed special operations, locking the ISS solar arrays had the greatest influence on the PDS’s external heat fluxes, and the average temperature at the PDS fell by 1.7°C. When the ISS performed multiple special operations, simultaneously locking the ISS solar arrays and adjusting the ISS flight attitude were the most frequent operations, of which the influences on the PDS temperature were the largest, i.e., the changes in peak temperature reached up to +2.5°C.

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