Thermodynamic analysis and comparison of four insulation schemes for liquid hydrogen storage tank
Thermodynamic analysis and comparison of four insulation schemes for liquid hydrogen storage tank
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液氢储罐四种保温方案的热力学分析比较
DOI：
10.1016/j.enconman.2019.02.073
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发表时间：
2019-04
影响因子：
10.4
通讯作者：
Junjie Wang
中科院分区：
文献类型：
--
作者：
Jianpeng Zheng;Liubiao Chen;Jue Wang;Xiaotong Xi;Honglai Zhu;Yuan Zhou;Junjie Wang
氢的每单位质量能量（141.8 MJ/kg）比任何其他燃料都高，但气体密度最低（0.084 kg/m3），而液氢（LH 2）储存是一种高能量密度的解决方案。然而，液氢储存具有低温（20 K）、易蒸发的特点，对绝热系统提出了更高的要求。目前，对喷涂泡沫绝热层（SOFI）、多层绝热层（MLI）和变密度多层绝热层（VDMLI）等绝热系统的改进和优化是研究的热点。考虑到氢气的显热相当可观，本文在上述绝热系统中引入了自蒸发式蒸汽冷却屏，以充分回收氢气的显热，提高绝热性能。建立了液氢储罐复合绝热系统绝热性能的热力学模型，计算结果与试验数据吻合较好。分析了它们之间的耦合作用，定量地解释了MLI、VDMLI和EQUIPMENT的优化策略，以获得更好的绝缘性能。定量分析了MLI、VDMLI、MLI + DRIVE和VDMLI + DRIVE四种绝热结构的热流密度和温度分布，为绝热系统的优化提供指导。比较了不同真空条件下复合绝热系统的绝热性能。
Hydrogen has more energy per unit mass (141.8 MJ/kg) than any other fuel but also has the lowest gaseous density (0.084 kg/m3), and liquid hydrogen (LH2) storage is a solution with high energy density. However, LH2storage has the characteristics of low temperature (20 K) and easy evaporation, putting forward higher requirements for insulation system. At present, the improvement and optimization of insulation system consisting of spray on foam insulation (SOFI), multilayer insulation (MLI) and variable density MLI (VDMLI) is a hot topic. Considering the considerable sensible heat of hydrogen, this paper introduces self-evaporation vapor cooled shield (VCS) into the above-mentioned insulation systems to fully recover its sensible heat to improve insulation performance. A thermodynamic model has been established to study the insulation properties of composite insulation system for LH2tank, and the results have good agreement with test data. Coupling effects among them are analyzed and the optimization strategies of MLI, VDMLI and VCS are quantitatively explained to obtain better insulation performance. The heat flux and temperature profile of four insulation structures (MLI, VDMLI, MLI + VCS and VDMLI + VCS) have also been quantitatively analyzed, which can provide guidance for insulation system optimization. The insulation performance of composite insulation system under different vacuum conditions have also been compared.
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影响因子：
7.2
作者：
Xi-Wan Sun;Zhen-yun Guo;Wei Huang
通讯作者：
Xi-Wan Sun;Zhen-yun Guo;Wei Huang
DOI：
10.1088/1757-899x/278/1/012194
发表时间：
2017-12
期刊：
IOP Conference Series: Materials Science and Engineering
影响因子：
--
作者：
L. Chen;J. Zheng;X. Wu;C. Cui;Y. Zhou;J. Wang
通讯作者：
L. Chen;J. Zheng;X. Wu;C. Cui;Y. Zhou;J. Wang
DOI：
10.1063/1.2908506
发表时间：
2008-03
期刊：
Advances in cryogenic engineering
影响因子：
--
作者：
D. Plachta;R. Christie;E. Carlberg;J. Feller
通讯作者：
D. Plachta;R. Christie;E. Carlberg;J. Feller
影响因子：
10.4
作者：
A. Ahmad;R. AL-Dadah;S. Mahmoud
通讯作者：
A. Ahmad;R. AL-Dadah;S. Mahmoud
DOI：
10.1016/0168-9002(95)01106-4
发表时间：
1996-02
影响因子：
1.4
作者：
D. McCammon;R. Almy;S. Deiker;J. Morgenthaler;R.L Kelley;F.J Marshall;S. H. Moseley;C. Stahle;A. E. Szymkowiak
通讯作者：
D. McCammon;R. Almy;S. Deiker;J. Morgenthaler;R.L Kelley;F.J Marshall;S. H. Moseley;C. Stahle;A. E. Szymkowiak