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Evaluation and Simulation Verification of Thermal Insulation Property of Fiber Fabric Materials in Space Environment
Luo Cai-Yun; Yang Li-Ping; Tao Ye; Zhong Qiu; Li Hui-Dong
2019-11-20
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume34Issue:11Pages:1238
SubtypeArticle
AbstractEquivalent experimental conditions to those in space were used to characterize the effective thermal conductivity of the fiber fabric insulation used in the multilayer insulation system of the material preparation furnace loaded on Tiangong-2 Space Station. By evaluating the material following variations in the on-orbit temperature and on-track pressure, the microscopic heat transfer mechanism was studied. The furnace internal temperature field under different working conditions was also simulated according to the characterization results, and the data reliability was verified. The results showed that the effective thermal conductivity of the fiber fabric increases non-linearly with rising temperature; moreover, with lower pressures, the growth trends are gentler. With a pressure drop, the results present the trend of a decaying exponential function with a critical pressure value. Radiation and gas phase heat conduction are the main factors affecting the heat transfer of the fiber fabric under the microgravity environment. Simulation results of the temperature field demonstrate that the temperature field distribution trend matches well with that of the measured results. The maximum calculation error of the furnace center is 1.3% of the measured temperature. This method can be used to evaluate the thermal insulation performance of the multilayer fiber material close to the practical working conditions more reasonably, and also to improve the accuracy of thermal simulation prediction models.
Keywordspace microgravity environment fiber fabric insulation material effective thermal conductivity steady-state heat flow meter method temperature field simulation
DOI10.15541/jim20190110
Language英语
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26727
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Luo Cai-Yun,Yang Li-Ping,Tao Ye,et al. Evaluation and Simulation Verification of Thermal Insulation Property of Fiber Fabric Materials in Space Environment[J]. JOURNAL OF INORGANIC MATERIALS,2019,34(11):1238.
APA Luo Cai-Yun,Yang Li-Ping,Tao Ye,Zhong Qiu,&Li Hui-Dong.(2019).Evaluation and Simulation Verification of Thermal Insulation Property of Fiber Fabric Materials in Space Environment.JOURNAL OF INORGANIC MATERIALS,34(11),1238.
MLA Luo Cai-Yun,et al."Evaluation and Simulation Verification of Thermal Insulation Property of Fiber Fabric Materials in Space Environment".JOURNAL OF INORGANIC MATERIALS 34.11(2019):1238.
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