空间遥感器用环路热管瞬态数值模拟与在轨验证

孟庆亮; 杨涛; 于志; 赵振明; 赵宇; 于峰

doi:10.13700/j.bh.1001-5965.2019.0584

空间遥感器用环路热管瞬态数值模拟与在轨验证

doi: 10.13700/j.bh.1001-5965.2019.0584

孟庆亮^{1, 2, ,},
杨涛^{1, 2},
于志^{1, 2},
赵振明^{1, 2},
赵宇^{1, 2},
于峰^{1, 2}

1.
北京空间机电研究所, 北京 100094
2.
先进光学遥感技术北京市重点实验室, 北京 100094

基金项目:

国家自然科学基金 51806010

详细信息

作者简介:
孟庆亮男, 博士, 高级工程师。主要研究方向:微重力下两相流动与传热

通讯作者:
孟庆亮, E-mail: qlmeng@mail.ustc.edu.cn

中图分类号: V416;TK124
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- 被引次数: 0
出版历程
- 收稿日期: 2019-11-14
- 录用日期: 2019-12-22
- 网络出版日期: 2020-11-20

Transient numerical simulation and on-orbit verification of loop heat pipe used for space remote sensor

MENG Qingliang^{1, 2
, ,},
YANG Tao^{1, 2},
YU Zhi^{1, 2},
ZHAO Zhenming^{1, 2},
ZHAO Yu^{1, 2},
YU Feng^{1, 2}

1.
Beijing Institute of Space Mechanics and Electricity, Beijing 100094, China
2.
Beijing Key Laboratory of Advanced Optical Remote Sensing Technology, Beijing 100094, China

Funds:

National Natural Science Foundation of China 51806010

More Information

Corresponding author: MENG Qingliang, E-mail: qlmeng@mail.ustc.edu.cn

摘要

摘要:
为满足空间遥感器环路热管（LHP）在轨应用需求，建立了高分九号卫星电荷耦合器件（CCD）用LHP瞬态数值模型。模型采用了节点-网络法和流动与传热关系式耦合的方法，考虑了蒸发器与储液器之间的传热传质过程。通过仿真与在轨数据的对比，发现LHP内部组件温度偏差为0.2~0.4℃，冷凝器测点温度偏差为0.5~2.0℃；预热器通过干度的变化调节了冷凝器外热流和热源工作模式的影响；热源的工作模式对蒸发器向储液器漏热、回路流阻及两相段长度均有影响。所提模型可用于不同轨道外热流及热源工作模式下，研究LHP内部各参数的变化规律，预测LHP系统的瞬态工作特性，并指导后续产品的设计与研发。
- 环路热管(LHP) /
- 空间遥感器 /
- 精密控温 /
- 传热传质 /
- 数值模拟
Abstract:
For the purpose of meeting the requirement of application on-orbit for Loop Heat Pipe (LHP), a transient numerical model of LHP, which is used for the thermal control of Charge-Coupled Device (CCD) of GF-9 satellite, is developed by using the node-network method and flow and heat transfer relation formula. The processes of heat and mass transfer between evaporator and accumulator are considered. By comparison between simulation and on-orbit results, it is found that the temperature differences are 0.2-0.4℃ and 0.5-2.0℃, for the interior components and condensers, respectively. The influence of orbital external heat flux and working mode of heat source can be adjusted by the degree of dryness in the pre-heater. The heat leak from evaporator to accumulator, flow resistance of loop, and the length of two-phase loop can be affected by the working mode of heat sources. The model can be used to study the variation of LHP interior parameters under different orbital external heat flux and heat source working modes, and predict the transient behavior of LHP system, which can also be used to guide the design and development of subsequent products.
- Loop Heat Pipe (LHP) /
- space remote sensor /
- precise thermal control /
- heat and mass transfer /
- numerical simulation

HTML全文

图 1 空间遥感器用LHP工作原理图和实物图

Figure 1. Working principle and photo of LHP forspace remote sensor

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图 2 热模型和流体模型示意图

Figure 2. Schematic diagram of thermal and flow models

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图 3 毛细泵的示意图和热网络图

Figure 3. Schematic diagram of capillary pumped and thermal network

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图 4 冷凝器A和冷凝器B外热流随时间变化趋势

Figure 4. Temporal evolution of external heat flux of condenser A and B

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图 5 蒸发器与储液器的仿真与在轨温度对比

Figure 5. Comparison of on-orbit temperature between simulation and test for evaporator and accumulator

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图 6 CCD冷板的仿真与在轨温度对比

Figure 6. Comparison of on-orbit temperature between simulation and test for CCD cold plates

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图 7 冷凝器的仿真与在轨温度对比

Figure 7. Comparison of on-orbit temperature between simulation and test for condenser

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图 8 预热器内流体的温度和干度随时间的变化曲线

Figure 8. Temporal evolution of fluid temperature and degree of dryness in pre-heater

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图 9 CCD冷板内流体的温度和干度随时间的变化曲线

Figure 9. Temporal evolution of fluid temperature anddegree of dryness in CCD cold plates

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图 10 蒸发器向储液器漏热量随时间的变化曲线

Figure 10. Temporal evolution of heat leak from evaporator to accumulator

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图 11 LHP系统流阻随时间的变化曲线

Figure 11. Temporal evolution of LHP system flow resistance

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图 12 冷凝器的温度分布云图

Figure 12. Temperature distribution contour of condenser

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表 1 LHP的基本参数

Table 1. Basic parameters of LHP

零件	材料	物理参数
蒸发器	不锈钢	Φ19 mm×125 mm
储液器	不锈钢	Φ36 mm×140 mm
毛细芯	氮化硅	孔径：1 μm；孔隙率：65%；外径×长度：Φ14 mm×200 mm
CCD冷板	不锈钢	长×宽×高：108 mm×20 mm×4 mm
预热器	不锈钢	长×宽×高：80 mm×50 mm×4 mm
冷凝器	铝合金	面积：0.33 m²(主)、0.35 m²(副)
冷凝管路	不锈钢	长度：6 m(主)，5 m(副)；管径：Φ33 mm；壁厚：0.5 mm

下载: 导出CSV

表 2 LHP的温控组件参数

Table 2. Parameters of temperature control components of LHP

零件	加热功率/W	控温阈值/℃	辐射或隔热措施
蒸发器	50	30~31	隔热安装
储液器	10	3~7	隔热安装
预热器	10	30~31	包覆多层
冷凝器A 冷凝器B	10 10	-41~-40 -41~-40	辐射面喷涂热控涂层
管路			包覆多层

下载: 导出CSV

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