Experimental study on molten metal spreading and deposition behaviors

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

13 Scopus Citations
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Author(s)

  • Takahito Ogura
  • Tatsuki Matsumoto
  • Shuichiro Miwa
  • Michitsugu Mori
  • Takashi Hibiki

Detail(s)

Original languageEnglish
Pages (from-to)353-362
Journal / PublicationAnnals of Nuclear Energy
Volume118
Publication statusPublished - 1 Aug 2018
Externally publishedYes

Abstract

In this paper, experimental investigation of the molten metal spreading behavior that was carried out at Hokkaido University using high frequency inductive heater is presented to address the fundamental behavior of the molten metal spreading and deposition behaviors on dry flat plate. Molten copper was utilized as a test sample, and dataset was obtained for the falling molten metal on dry stainless-steel plate at various elevations, nozzle sizes and initial temperatures. During the spreading transient, high-speed thermo-camera was utilized to measure the molten metal's surface temperature. Immediately after the solidification, solidified molten metal's spread area and deposition thickness were measured. Based on the database obtained, dimensional analysis was conducted to identify the key parameters responsible for the molten metal spreading. From the obtained database, new experimental correlation was developed which is capable of predicting the spreading area at reasonable accuracy. Present analysis provides characteristic information of molten metal spreading and deposition behaviors which will be useful for the corium relocation problem in severe accident analysis.

Research Area(s)

  • Debris, Molten metal, Rapid solidification, Severe accident

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Experimental study on molten metal spreading and deposition behaviors. / Ogura, Takahito; Matsumoto, Tatsuki; Miwa, Shuichiro; Mori, Michitsugu; Hibiki, Takashi.

In: Annals of Nuclear Energy, Vol. 118, 01.08.2018, p. 353-362.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review