Cavitation inception upstream of liquid lithium target for intense fusion neutron source

被引：2

作者：

Kondo, Hiroo ^{[1
,3
]}

Kanemura, Takuji ^{[1
,4
]}

Furukawa, Tomohiro ^{[1
]}

Hirakawa, Yasushi ^{[1
]}

Wakai, Eiichi ^{[2
]}

机构：

[1] Japan Atom Energy Agcy, 4002 Narita, Oarai, Ibaraki 3111393, Japan

[2] Japan Atom Energy Agcy, 2-4 Shirakata, Tokai, Ibaraki 3191195, Japan

[3] Natl Inst Quantum & Radiol Sci & Technol, 801-1 Mukoyama, Naka, Ibaraki 3110193, Japan

[4] Michigan State Univ, 640 South Shaw Lane, E Lansing, MI 48824 USA

来源：

FUSION ENGINEERING AND DESIGN | 2017年 / 124卷

关键词：

IFMIF; Li target; Liquid metal; High power bearn target; Cavitation; LI TARGET;

D O I：

10.1016/j.fusengdes.2017.05.106

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A liquid Li free-surface stream flowing at 15 m/s under a high vacuum of 10(-3) Pa is to serve as a beam target (Li target) for an intense neutron source such as the planned International Fusion Materials Irradiation Facility (IFMIF). This study examines cavitation-like acoustic noise occurring upstream of the Li target. This noise is detected using an acoustic emission sensor that is installed at a Li target assembly in which the Li target was produced. A time-frequency analysis by continuous wavelet transform (CWT) was performed to characterize the acoustic noise, which determined the cause of the acoustic signal was cavitation. And the occurrence of cavitation was discussed by using Bernoulli's equation and compared with the experimental observations. As a consequence, we revealed a criterion of inception of cavitation and a proper startup pressure of the Li target, which will be a design basis for the future IFMIF Li target facility. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：990 / 994

页数：5

共 7 条

[1] Measurement of Li target thickness in the EVEDA Li Test Loop [J].

Kanemura, Takuji ;

Kondo, Hiroo ;

Furukawa, Tomohiro ;

Hirakawa, Yasushi ;

Hoashi, Eiji ;

Yoshihashi, Sachiko ;

Horiike, Hiroshi ;

Wakai, Eiichi .

FUSION ENGINEERING AND DESIGN, 2015, 98-99 :1991-1997

[2]

Knaster J, 2016, NAT PHYS, V12, P424, DOI [10.1038/nphys3735, 10.1038/NPHYS3735]

[3] IFMIF: overview of the validation activities [J].

Knaster, J. ;

Arbeiter, F. ;

Cara, P. ;

Favuzza, P. ;

Furukawa, T. ;

Groeschel, F. ;

Heidinger, R. ;

Ibarra, A. ;

Matsumoto, H. ;

Mosnier, A. ;

Serizawa, H. ;

Sugimoto, M. ;

Suzuki, H. ;

Wakai, E. .

NUCLEAR FUSION, 2013, 53 (11)

[4] Validation of IFMIF liquid Li target for IFMIF/EVEDA project [J].

Kondo, H. ;

Kanemura, T. ;

Furukawa, T. ;

Hirakawa, Y. ;

Wakai, E. ;

Groeschel, F. ;

Nitti, F. ;

Knaster, J. .

FUSION ENGINEERING AND DESIGN, 2015, 96-97 :117-122

[5]

Kondo H., 2015, P ICONE 23 CHIB JAP

[6]

Kondo H., 2016, FUSION ENG DES, V21

[7] Experimental Study on Cavitation of a Liquid Lithium Jet for International Fusion Materials Irradiation Facility [J].

Kondo H. ;

Kanemura T. ;

Furukawa T. ;

Hirakawa Y. ;

Wakai E. ;

Knaster J. .

Journal of Nuclear Engineering and Radiation Science, 2017, 3 (04)

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