Applicability of steam-explosion retardant for molten nickel and tin at high-temperature

Masahiro Furuya; Takahiro Arai

Applicability of steam-explosion retardant for molten nickel and tin at high-temperature

Masahiro Furuya^*, Takahiro Arai

^*この研究の対応する著者

研究成果: Paper › 査読

1 被引用数 (Scopus)

抄録

Steam explosion has been a potential threat to containment boundary during severe accident in light water reactors. Polyethylene glycol (PEG) aqueous solution is an effective triggering retardant for both spontaneous and external-triggered steam explosions. In order to investigate steam explosion controllability at high temperature and for high meting-point metal, experiments are extended for molten nickel and tin up to 1800^oC. Steam explosion was suppressed for both molten tin and nickel in a 0.1 wt% PEG (molecular weight of 4×10⁶ g/mol) aqueous solution. The stability of PEG was investigated with gel permeation chromatography, ion chromatography, and high-performance liquid chromatography. The results indicated that PEG may be precipitated in the liquid side without producing byproducts and suppress steam explosions even for the molten jet at 1800 ^oC.

本文言語	English
出版ステータス	Published - 2017 1月 1
外部発表	はい
イベント	17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017 - Xi'an, Shaanxi, China 継続期間: 2017 9月 3 → 2017 9月 8

Conference

Conference	17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017
国/地域	China
City	Xi'an, Shaanxi
Period	17/9/3 → 17/9/8

ASJC Scopus subject areas

原子力エネルギーおよび原子力工学
器械工学

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title = "Applicability of steam-explosion retardant for molten nickel and tin at high-temperature",

abstract = "Steam explosion has been a potential threat to containment boundary during severe accident in light water reactors. Polyethylene glycol (PEG) aqueous solution is an effective triggering retardant for both spontaneous and external-triggered steam explosions. In order to investigate steam explosion controllability at high temperature and for high meting-point metal, experiments are extended for molten nickel and tin up to 1800oC. Steam explosion was suppressed for both molten tin and nickel in a 0.1 wt% PEG (molecular weight of 4×106 g/mol) aqueous solution. The stability of PEG was investigated with gel permeation chromatography, ion chromatography, and high-performance liquid chromatography. The results indicated that PEG may be precipitated in the liquid side without producing byproducts and suppress steam explosions even for the molten jet at 1800 oC.",

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author = "Masahiro Furuya and Takahiro Arai",

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language = "English",

note = "17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017 ; Conference date: 03-09-2017 Through 08-09-2017",

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TY - CONF

T1 - Applicability of steam-explosion retardant for molten nickel and tin at high-temperature

AU - Furuya, Masahiro

AU - Arai, Takahiro

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Steam explosion has been a potential threat to containment boundary during severe accident in light water reactors. Polyethylene glycol (PEG) aqueous solution is an effective triggering retardant for both spontaneous and external-triggered steam explosions. In order to investigate steam explosion controllability at high temperature and for high meting-point metal, experiments are extended for molten nickel and tin up to 1800oC. Steam explosion was suppressed for both molten tin and nickel in a 0.1 wt% PEG (molecular weight of 4×106 g/mol) aqueous solution. The stability of PEG was investigated with gel permeation chromatography, ion chromatography, and high-performance liquid chromatography. The results indicated that PEG may be precipitated in the liquid side without producing byproducts and suppress steam explosions even for the molten jet at 1800 oC.

AB - Steam explosion has been a potential threat to containment boundary during severe accident in light water reactors. Polyethylene glycol (PEG) aqueous solution is an effective triggering retardant for both spontaneous and external-triggered steam explosions. In order to investigate steam explosion controllability at high temperature and for high meting-point metal, experiments are extended for molten nickel and tin up to 1800oC. Steam explosion was suppressed for both molten tin and nickel in a 0.1 wt% PEG (molecular weight of 4×106 g/mol) aqueous solution. The stability of PEG was investigated with gel permeation chromatography, ion chromatography, and high-performance liquid chromatography. The results indicated that PEG may be precipitated in the liquid side without producing byproducts and suppress steam explosions even for the molten jet at 1800 oC.

KW - Additives

KW - Cloud-point phenomenon

KW - Polyethylene glycol

KW - Retardant

KW - Steam explosion

KW - Triggering

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M3 - Paper

AN - SCOPUS:85052395677

T2 - 17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017

Y2 - 3 September 2017 through 8 September 2017

ER -

Applicability of steam-explosion retardant for molten nickel and tin at high-temperature

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Conference

ASJC Scopus subject areas

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