Abstract
High-vacuum-multilayer-insulation (HVMLI) cryogenic tank is one kind of dangerous pressure vessels. One of the worst accidents that may occur in a high-vacuum-multilayer-insulation (HVMLI) cryogenic tank is a sudden, catastrophic loss of insulating vacuum (SCLIV). The influence of SCLIV on storage performance for a HVMLI cryogenic tank is experimentally studied in this paper. A test rig was built up and experiments were conducted using LN2 as the test medium. The cryogenic tank was tested in the conditions of various combinations with different initial liquid level and number of insulation layers. Some important conclusions for storage performance with a vacuum-lost HVMLI cryogenic tank have been obtained. The experimental results show that the numbers of insulation layers and the initial liquid level have obvious effect on the storage performance after SCLIV for cryogenic tanks.
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