Application of high-frame-rate neutron radiography to steam explosion research

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

3 Scopus Citations
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Author(s)

  • Y. Saito
  • K. Mishima
  • A. Yamamoto
  • J. Sugimoto
  • K. Moriyama

Detail(s)

Original languageEnglish
Pages (from-to)142-147
Journal / PublicationNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume424
Issue number1
Publication statusPublished - 3 Nov 1999
Externally publishedYes

Conference

TitleProceedings of the 1998 3rd International Topical Meeting on Neutron Radiography, ITMNR-3
CityLucerne, Switzerland
Period16 - 19 March 1998

Abstract

To understand the behavior of dispersed molten metal particles dropped into water during the premixing process of steam explosion, experiments were performed by using heated stainless-steel particles simulating dispersed molten metal particles. High-frame-rate neutron radiography was successfully employed for visualization and void fraction measurement. Visualization was conducted by dropping heated stainless-steel particle into heavy water filled in a rectangular tank with the particle diameter (6, 9, and 12 mm) and temperature (600 °C, 700 °C, 800 °C, and 1000 °C) as parameters. Steam generation due to direct contact of heated particle and heavy water was successfully visualized by the high-frame-rate neutron radiography at the recording speed of 500 frames/s. From void fraction measurement it was revealed that the amount of generated steam was in proportion to the particle size and temperature. It is suggested that the ambient liquid might be superheated by the particle-liquid contact.

Bibliographic Note

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Citation Format(s)

Application of high-frame-rate neutron radiography to steam explosion research. / Saito, Y.; Mishima, K.; Hibiki, T. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 424, No. 1, 03.11.1999, p. 142-147.

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