液体窒素のフラッシング現象に関する実験的研究

The aim of this study is to clarify the fundamental features of the flashing phenomenon of cryogenic liquid nitrogen under rapid depressurization. Liquid nitrogen flashing experiments have been carried out using a cryostat with windows. From these experimental results, it is shown that a pressure re...

Full description

Saved in:
Bibliographic Details
Published in日本機械学会論文集 B編 Vol. 58; no. 549; pp. 1498 - 1503
Main Authors 戸倉, 郁夫, 花岡, 裕, 横山, 真吾
Format Journal Article
LanguageJapanese
Published 一般社団法人 日本機械学会 01.05.1992
日本機械学会
Subjects
Boiling
Bubble
Cryogenics
Cryostat
Depressurization
Flashing
Liquid Nitrogen
Stratification
Online AccessGet full text
ISSN0387-5016
1884-8346
DOI10.1299/kikaib.58.1498

Cover

More Information
Summary:The aim of this study is to clarify the fundamental features of the flashing phenomenon of cryogenic liquid nitrogen under rapid depressurization. Liquid nitrogen flashing experiments have been carried out using a cryostat with windows. From these experimental results, it is shown that a pressure recovery process after rapid depressurization occurs when bubbles generated in the lowtemperature region grow and rise in liquid nitrogen. Furthermore, local minimum pressure and pressure recovery within the vessel are predicted by saturated pressure corresponding to initial liquid temperature. The local minimum pressure depends strongly on initial temperature rather than on the rate of depressurization.
ISSN:0387-5016
1884-8346
DOI:10.1299/kikaib.58.1498