Liquid Nitrogen Flashing in the glass vessel under Rapid Depressurizations

Recently, a demand for cryogenic fluids as a coolant has been increasing because of the industrial development of low temperature technology. The purpose of this study is to clarify some fundamental features of the phase changes associated with the flashing of cryogenic fluid. Liquid nitrogen at low...

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Bibliographic Details
Published in:The international journal of multiphysics 2023-01, Vol.17 (2), p.125-134
Main Authors: T Watanabe, A Nakano, K Tokunaga, T Shiigi, K Shimojima
Format: Article
Language:English
Online Access:Get full text
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Summary:Recently, a demand for cryogenic fluids as a coolant has been increasing because of the industrial development of low temperature technology. The purpose of this study is to clarify some fundamental features of the phase changes associated with the flashing of cryogenic fluid. Liquid nitrogen at low temperatures was used as the test liquid. Experiments on the decompression boiling of liquid nitrogen in a pressure vessel made of glass were conducted. In these experiments, many types of boiling behavior were observed. These were classified into several typical patterns by visual observation. The degree of superheat of liquid nitrogen at the start of boiling was found to depend strongly on the rate of depressurization.
ISSN:1750-9548
2048-3961
DOI:10.21152/1750-9548.17.2.125