Characterization and monitoring of vacuum pressure of tank containers with multilayer insulation for cryogenic clean fuels storage and transportation

被引：26

作者：

Bo, Wang ^{[1
]}

Ruoyin, Luo ^{[1
]}

Hong, Chen ^{[2
]}

Chen, Zheng ^{[3
]}

Yunfei, Gao ^{[3
]}

Haoren, Wang ^{[1
]}

Rehman, Hashmi Abdul ^{[1
]}

Qinyu, Zhao ^{[1
]}

Gan, Zhihua ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Inst Refrigerat & Cryogen, Key Lab Refrigerat & Cryogen Technol Zhejiang Pro, Hangzhou 310027, Peoples R China

[2] State Key Lab Technol Space Cryogen Propellants, Beijing 100028, Peoples R China

[3] China Jiliang Univ, Coll Metrol & Measurement Engn, Hangzhou 310018, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2021年 / 187卷

基金：

中国国家自然科学基金;

关键词：

Liquid hydrogen; LNG; Vacuum pressure; MLI; Tank container; OPTIMIZATION; CHALLENGES; SYSTEM;

D O I：

10.1016/j.applthermaleng.2021.116569

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Liquid natural gas and liquid hydrogen are promising and economical clean energy sources for reducing CO2 emissions and slowing global warming. Characterization and monitoring of the vacuum pressure inside tank containers with multilayer insulation (MLI) are essential for the safe storage and convenient transportation of these cryogenic fuels. Herein, a new method for characterizing the vacuum pressure of tank containers with MLI is proposed. A theoretical analysis revealed that the temperature of the outer surface of the MLI material (T-0) is a good indicator of the vacuum pressure inside the tanks. Experimental verification was conducted using an MLI performance-testing apparatus, T-0 was measured under 10 different vacuum pressures. The results showed that when the vacuum pressure was <10(-1) Pa, T(0 )kept almost. However, when the vacuum pressure was >1 Pa, T-0 decreased sharply with the increase of vacuum pressure. The mechanism of the proposed method was also discussed based on the thermal analysis of the experimental system at different vacuum pressures. This study provides a simple and reliable method for vacuum pressure monitoring of tank containers with MLI, which allows the large-scale and safe utilization of clean energy with a low boiling temperature.

引用

页数：8

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