摘要
为获取某航天器运输包装箱在典型高温天气下的极限热控能力,设计了主动控温和被动保温状态试验方案,并开展试验研究。结果表明:太阳辐射是影响包装箱温度的主要因素,环境温度是次要因素;在环境温度为40℃、内部航天器初始温度为30℃左右的主动制冷工况,该包装箱能将内部航天器温度控制在40℃以下要求范围内,且有近7℃余量;在环境温度为35℃、内部航天器初始温度为25℃左右的被动保温工况下,内部航天器温度保持在40℃以下的时间约为2 h 15 min。为进一步降低运输过程控温风险、增强包装箱的热控能力,提出了尽量避免阳光直接照射箱体以及增加风扇强迫空气对流等一系列措施和建议。
In order to determine the ultimate thermal control capacity of a certain spacecraft transport package at the typical high temperature,the test schemes about the active heat control and the passive heat preservation are designed,respectively,and the related experimental research is carried out.The results show that the solar radiation is the primary factor affecting the temperature of the transport package;the ambient temperature is the secondary factor.Under the active refrigeration condition where the ambient temperature is about40℃and the initial temperature of the internal spacecraft is about30℃,the transport package is capable of controlling the spacecraft temperature in the required range below40℃with a margin of nearly7℃.Under the passive heat preservation condition where the ambient temperature is about35℃and the initial temperature of the internal spacecraft is about25℃,the transport package can keep the internal spacecraft temperature below40℃for about2h15min.A series of measures and suggestions are put forward for avoiding the direct sunlight exposure and increasing the forced air convection of the transport package for further reducing the risk of the temperature control during transportation and thus enhancing the thermal control capacity.
作者
彭华康
黄震
贾世锦
李立春
付杨
汪万桥
PENG Huakang;HUANG Zhen;JIA Shijin;LI Lichun;FU Yang;WANG Wanqiao(College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Institute of Manned Space System Engineering, China Academy of Space Technology, Beijing 100094, China;Shanghai Institute of Aerospace System Engineering, Shanghai 201109, China;Beijing Institute of Spacecraft System Engineering, Beijing 100094, China;Shanghai Aerospace Equipment Manufacturing Co. LTD, Shanghai 200245, China)
出处
《航天器环境工程》
2018年第6期575-580,共6页
Spacecraft Environment Engineering
基金
国家重大科技专项工程
关键词
航天器
运输包装箱
试验研究
主动控温
被动保温
极限热控能力
spacecraft
transport package
experimental study
active heat control
passive heat preservation
ultimate thermal control capacity
