Particle effects on penetration and solidification of flowing mixed melts on metal structures;

Md Abdul Malek Soner, Yu Hasegawa, Shinya Nakayama, Koji Morita, Tatsuya Matsumoto, Werner Maschek

Research output: Contribution to journalArticle

Abstract

In severe-accident analyses of liquid-metal-cooled reactors, assessing the relocation and solidification of disrupted core materials is of importance. We investigate here the fundamental characteristics of these behaviors in flowing melt mixed with solid particles under various conditions. To simulate the melts, we use a low-melting-point metal (viz., Bi-Sn-In alloy) mixed with various concentrations of copper and bronze as solid particles; the flow channels used were inclined open ones with a V-shaped cross section made of either stainless steel or brass plate. Transient melt flow was recorded, and melt penetration lengths and frozen melt distributions along the channel were measured. Results indicate that penetration length decreases for molten-metal/solid particle mixtures (mixed melts) compared with a pure molten metal (a pure melt), as well as decreases with decreasing solid particle size and increasing particle volume fraction in the melt. For the pure melt, we found only one freezing mode of all melt adhesions along the channel, whereas there were two freezing modes of melt separation with high solid particle concentrations, as well as melt adhesion, along the channel for mixed melts. The results obtained will be utilized in an experimental database to validate and improve physical models used for reactor safety analysis codes.

Original languageEnglish
Pages (from-to)1214-1222
Number of pages9
Journaljournal of nuclear science and technology
Volume48
Issue number8
DOIs
Publication statusPublished - Jan 1 2011

Fingerprint

solidification
Solidification
penetration
Metals
metals
Liquid metals
Freezing
Liquid metal cooled reactors
Adhesion
freezing
liquid metal cooled reactors
adhesion
reactor safety
Relocation
Bronze
Brass
Channel flow
relocation
brasses
bronzes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

Cite this

Particle effects on penetration and solidification of flowing mixed melts on metal structures; / Soner, Md Abdul Malek; Hasegawa, Yu; Nakayama, Shinya; Morita, Koji; Matsumoto, Tatsuya; Maschek, Werner.

In: journal of nuclear science and technology, Vol. 48, No. 8, 01.01.2011, p. 1214-1222.

Research output: Contribution to journalArticle

Soner, Md Abdul Malek ; Hasegawa, Yu ; Nakayama, Shinya ; Morita, Koji ; Matsumoto, Tatsuya ; Maschek, Werner. / Particle effects on penetration and solidification of flowing mixed melts on metal structures;. In: journal of nuclear science and technology. 2011 ; Vol. 48, No. 8. pp. 1214-1222.
@article{ceb259c2f21244c2985832f17cebd00e,
title = "Particle effects on penetration and solidification of flowing mixed melts on metal structures;",
abstract = "In severe-accident analyses of liquid-metal-cooled reactors, assessing the relocation and solidification of disrupted core materials is of importance. We investigate here the fundamental characteristics of these behaviors in flowing melt mixed with solid particles under various conditions. To simulate the melts, we use a low-melting-point metal (viz., Bi-Sn-In alloy) mixed with various concentrations of copper and bronze as solid particles; the flow channels used were inclined open ones with a V-shaped cross section made of either stainless steel or brass plate. Transient melt flow was recorded, and melt penetration lengths and frozen melt distributions along the channel were measured. Results indicate that penetration length decreases for molten-metal/solid particle mixtures (mixed melts) compared with a pure molten metal (a pure melt), as well as decreases with decreasing solid particle size and increasing particle volume fraction in the melt. For the pure melt, we found only one freezing mode of all melt adhesions along the channel, whereas there were two freezing modes of melt separation with high solid particle concentrations, as well as melt adhesion, along the channel for mixed melts. The results obtained will be utilized in an experimental database to validate and improve physical models used for reactor safety analysis codes.",
author = "Soner, {Md Abdul Malek} and Yu Hasegawa and Shinya Nakayama and Koji Morita and Tatsuya Matsumoto and Werner Maschek",
year = "2011",
month = "1",
day = "1",
doi = "10.1080/18811248.2011.9711809",
language = "English",
volume = "48",
pages = "1214--1222",
journal = "Journal of Nuclear Science and Technology",
issn = "0022-3131",
publisher = "Atomic Energy Society of Japan",
number = "8",

}

TY - JOUR

T1 - Particle effects on penetration and solidification of flowing mixed melts on metal structures;

AU - Soner, Md Abdul Malek

AU - Hasegawa, Yu

AU - Nakayama, Shinya

AU - Morita, Koji

AU - Matsumoto, Tatsuya

AU - Maschek, Werner

PY - 2011/1/1

Y1 - 2011/1/1

N2 - In severe-accident analyses of liquid-metal-cooled reactors, assessing the relocation and solidification of disrupted core materials is of importance. We investigate here the fundamental characteristics of these behaviors in flowing melt mixed with solid particles under various conditions. To simulate the melts, we use a low-melting-point metal (viz., Bi-Sn-In alloy) mixed with various concentrations of copper and bronze as solid particles; the flow channels used were inclined open ones with a V-shaped cross section made of either stainless steel or brass plate. Transient melt flow was recorded, and melt penetration lengths and frozen melt distributions along the channel were measured. Results indicate that penetration length decreases for molten-metal/solid particle mixtures (mixed melts) compared with a pure molten metal (a pure melt), as well as decreases with decreasing solid particle size and increasing particle volume fraction in the melt. For the pure melt, we found only one freezing mode of all melt adhesions along the channel, whereas there were two freezing modes of melt separation with high solid particle concentrations, as well as melt adhesion, along the channel for mixed melts. The results obtained will be utilized in an experimental database to validate and improve physical models used for reactor safety analysis codes.

AB - In severe-accident analyses of liquid-metal-cooled reactors, assessing the relocation and solidification of disrupted core materials is of importance. We investigate here the fundamental characteristics of these behaviors in flowing melt mixed with solid particles under various conditions. To simulate the melts, we use a low-melting-point metal (viz., Bi-Sn-In alloy) mixed with various concentrations of copper and bronze as solid particles; the flow channels used were inclined open ones with a V-shaped cross section made of either stainless steel or brass plate. Transient melt flow was recorded, and melt penetration lengths and frozen melt distributions along the channel were measured. Results indicate that penetration length decreases for molten-metal/solid particle mixtures (mixed melts) compared with a pure molten metal (a pure melt), as well as decreases with decreasing solid particle size and increasing particle volume fraction in the melt. For the pure melt, we found only one freezing mode of all melt adhesions along the channel, whereas there were two freezing modes of melt separation with high solid particle concentrations, as well as melt adhesion, along the channel for mixed melts. The results obtained will be utilized in an experimental database to validate and improve physical models used for reactor safety analysis codes.

UR - http://www.scopus.com/inward/record.url?scp=85010543718&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85010543718&partnerID=8YFLogxK

U2 - 10.1080/18811248.2011.9711809

DO - 10.1080/18811248.2011.9711809

M3 - Article

AN - SCOPUS:85010543718

VL - 48

SP - 1214

EP - 1222

JO - Journal of Nuclear Science and Technology

JF - Journal of Nuclear Science and Technology

SN - 0022-3131

IS - 8

ER -