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

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

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 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.

Original language	English
Publication status	Published - 2017 Jan 1
Externally published	Yes
Event	17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017 - Xi'an, Shaanxi, China Duration: 2017 Sept 3 → 2017 Sept 8

Conference

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

Keywords

Additives
Cloud-point phenomenon
Polyethylene glycol
Retardant
Steam explosion
Triggering

ASJC Scopus subject areas

Nuclear Energy and Engineering
Instrumentation

Cite this

@conference{5a3d2b4442ca4123b1f5a0e7f68c5019,

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.",

keywords = "Additives, Cloud-point phenomenon, Polyethylene glycol, Retardant, Steam explosion, Triggering",

author = "Masahiro Furuya and Takahiro Arai",

year = "2017",

month = jan,

day = "1",

language = "English",

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

}

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

UR - http://www.scopus.com/inward/record.url?scp=85052395677&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85052395677&partnerID=8YFLogxK

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

Abstract

Conference

Keywords

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this