Thermal Insulation Performance Optimization of Multi-layer Insulation Materials for Cryogenic Storage Tanks

YU Jiayuan; ZHOU Wenjie; XU Jiaqi; QIU Yinan

doi:10.12446/j.issn.1006-7086.2024.06.015

VACUUM AND CRYOGENICS > 2024 > 30(6): 712-718. > DOI: 10.12446/j.issn.1006-7086.2024.06.015

YU J Y，ZHOU W J，XU J Q，et al. Thermal insulation performance optimization of multi-layer insulation materials for cryogenic storage tanks[J]. Vacuum and Cryogenics，2024，30（6）：712−718. DOI: 10.12446/j.issn.1006-7086.2024.06.015

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Thermal Insulation Performance Optimization of Multi-layer Insulation Materials for Cryogenic Storage Tanks

1.
School of Automation，Hangzhou Dianzi University，Hangzhou　310018，China
2.
State Key Laboratory of Aerospace Cryogenic Propellant Technology，Beijing　100190，China

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Received Date: March 26, 2024

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Abstract

Abstract

This study investigates the factors influencing the thermal insulation performance of Multi-Layer Insulation （MLI）, particularly focusing on layer density and the thermal conductivity of separator materials. Using a layer-by-layer model and simulation calculations within the temperature range of 20 K to 300 K, we explore the relationship between MLI's thermal insulation performance and these factors. Based on our findings, we propose a novel structure called Variable Density and Variable Separator Material Composite Multi-Layer Insulation （VDS-MLI）, which considers the temperature-dependent thermal conductivity of different interlayer materials. Under our simulation conditions, we find that VDS-MLI significantly outperforms traditional structures, with a 10% to 12% improvement in thermal insulation performance. This innovative approach holds promise for enhancing thermal insulation efficiency and offers new avenues for the design and application of multi-layer insulation materials, particularly in low-temperature environments.
- variable separator MLI,
- multilayer thermal insulation,
- variable layer density,
- thermal conductivity

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References (15)

References

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