Experimental study on the storage performance of high-vacuum-multilayer-insulation tank after sudden, catastrophic loss of insulating vacuum

2011 ◽  
Vol 48 (5) ◽  
pp. 757-766
Author(s):  
G. F. Xie ◽  
X. D. Li ◽  
R. S. Wang
Keyword(s):  
Experimental Study ◽  
High Vacuum ◽  
Storage Performance ◽  
Catastrophic Loss ◽  
Multilayer Insulation

Experimental Investigation of the Influence of the Gas Type on the Heat Transfer in a High-Vacuum-Multilayer-Insulation Cryogenic Tank After Sudden, Catastrophic Loss of Insulating Vacuum

2011 ◽  
Vol 354-355 ◽  
pp. 294-303
Author(s):  
Ming Zhu ◽  
Gao Feng Xie ◽  
Rong Shun Wang
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Performance ◽  
High Vacuum ◽  
Cryogenic Liquid ◽  
Heat Transfer Process ◽  
Test Rig ◽  
Heat Transfer Characteristics ◽  
Cryogenic Tank ◽  
Catastrophic Loss ◽  
Multilayer Insulation

One of the worst accidents that may occur in a high-vacuum-multilayer-insulation (HVMLI) cryogenic tank is a sudden, catastrophic loss of insulation vacuum (SCLIV). it is obvious that the different gas leaking into the insulation jacket have some influence on the heat transfer process. However, this problem has not been studied systematically so far. In this paper, a test rig was built up and experiments were conducted on a SCLIV cryogenic tank by using the nitrogen, helium, oxygen, carbon dioxide and air as the leaking medium, respectively. Some important phenomena and heat transfer characteristics in a vacuum-lost HVMLI cryogenic tank have been obtained. The effects of the insulation layer numbers and the type of gases on venting rate and heat flux into the cryogenic liquid have been measured, analyzed and discussed. It indicates that the heat transfer performance of the HVMLI cryogenic tank after SCLIV is strong related to the type of gases leaking into the insulation jacket.

scholarly journals Experimental Study of Ultra-high Vacuum Flanges

Shinku ◽  
1968 ◽  
Vol 11 (1) ◽  
pp. 23-28
Author(s):  
Hiroshi NAKAGAWA ◽  
Kyon Ju CHIN ◽  
Yukio ISHIBE
Keyword(s):  
Experimental Study ◽  
High Vacuum ◽  
Ultra High Vacuum

Experimental Study on Supercooling Phenomenon and Supercooling Degree of Nanofluids

2021 ◽  
Vol 3 (8) ◽  
pp. 64-69
Author(s):  
Chengzhen Wu ◽  
◽  
Fu Fang ◽  
Pengfei Shi ◽  
Yilin Ning ◽  
...  
Keyword(s):  
Experimental Study ◽  
Graphene Oxide ◽  
Deionized Water ◽  
Hybrid Nanofluid ◽  
Fluid Temperature ◽  
Nano Particle ◽  
Storage Performance ◽  
Field Of Vision ◽  
Supercooling Degree ◽  
Ultrasonic Time

In recent years, nanofluid has gradually entered people's field of vision due to its unique cold storage performance. Hybrid nanofluid has a more prominent effect. In order to reduce the supercooling degree of the nanofluid and obtain a practical and effective method to reduce the supercooling degree, the nano-particle graphene oxide and Al2O3 are added into deionized water ultrasonically to configure the nanofluid, and then the temperature is cooled. The effect of nanofluid concentration and different initial fluid temperature on the nanofluid subcooling degree is obtained when the ultrasonic time is 120min; when the nanofluid concentration is 0.15%wt, the nanofluid subcooling degree is the lowest, and the nanofluid is supercooled at this time The temperature is 2.8°C, which is the optimal condition for undercooling research.

Sign in / Sign up

Export Citation Format

Share Document