An Experimental Investigation of Boiling of Water in a Vertical Tube
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- MATSUMURA Kunihito
- Ibaraki University
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- KAMINAGA Fumito
- Ibaraki University
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- SUZUKI Masahiro
- Division of Advanced Nuclear System, Japan Atomic Energy Agency
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- FUJII Kan-ichi
- Ibaraki University
Bibliographic Information
- Other Title
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- 垂直管内の沸騰現象に関する実験的研究
- スイチョクカン ナイ ノ フットウ ゲンショウ ニ カンスル ジッケンテキ ケンキュウ
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Abstract
In order to realize a quick mass production of PuO2/UO2 (MOX) particles via vaporization of Pu/U mixed nitrate solution, an innovative denitration process is required. In this process, one of the important problems is the safety control of radioactive materials in the solution. However, it is known that violent boiling (i.e., geysering) of liquid sometimes occurs in a long, heated vessel. In this study, we experimentally examined the boiling characteristics of water in a vertical glass tube with a closed lower end opening to an upper plenum at the top. In our experiments, we measured the transient statistic water pressure and the water temperature at four elevations along the glass tube. The effects of the water temperature of the upper plenum and heat input into the water on the boiling of water were investigated. Flow visualization shows that the bubbles are first formed on the heater surface, and then they detach and start to rise in the water. They suddenly coalesce and form a large slug bubble in the test tube. Measurements of local water temperatures showed that in the case of violent boiling, the temperatures and pressure fluctuate at the same frequency.<br>
Journal
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- Transactions of the Atomic Energy Society of Japan
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Transactions of the Atomic Energy Society of Japan 13 (2), 51-61, 2014
Atomic Energy Society of Japan
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Details 詳細情報について
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- CRID
- 1390001205187162624
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- NII Article ID
- 130003397102
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- NII Book ID
- AA11643165
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- ISSN
- 21862931
- 13472879
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- NDL BIB ID
- 025587023
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed