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

Y. Saito; K. Mishima; T. Hibiki; A. Yamamoto; J. Sugimoto; K. Moriyama

doi:10.1016/S0168-9002(98)01298-4

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

Y. Saito
, K. Mishima^*
, T. Hibiki
, A. Yamamoto
, J. Sugimoto
, K. Moriyama

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

17 Citations (Scopus)

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.

Original language	English
Pages (from-to)	142-147
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	424
Issue number	1
DOIs	https://doi.org/10.1016/S0168-9002(98)01298-4
Publication status	Published - 3 Nov 1999
Externally published	Yes
Event	Proceedings of the 1998 3rd International Topical Meeting on Neutron Radiography, ITMNR-3 - Lucerne, Switzerland Duration: 16 Mar 1998 → 19 Mar 1998

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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 [email protected].

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title = "Application of high-frame-rate neutron radiography to steam explosion research",

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.",

author = "Y. Saito and K. Mishima and T. Hibiki and A. Yamamoto and J. Sugimoto and K. Moriyama",

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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 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Application of high-frame-rate neutron radiography to steam explosion research

AU - Saito, Y.

AU - Mishima, K.

AU - Hibiki, T.

AU - Yamamoto, A.

AU - Sugimoto, J.

AU - Moriyama, K.

N1 - 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 [email protected].

PY - 1999/11/3

Y1 - 1999/11/3

N2 - 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.

AB - 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.

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DO - 10.1016/S0168-9002(98)01298-4

M3 - RGC 21 - Publication in refereed journal

SN - 0168-9002

VL - 424

SP - 142

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1

T2 - Proceedings of the 1998 3rd International Topical Meeting on Neutron Radiography, ITMNR-3

Y2 - 16 March 1998 through 19 March 1998

ER -

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

Abstract

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