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

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 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.

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 32017 9月 8

Conference

Conference17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2017
国/地域China
CityXi'an, Shaanxi
Period17/9/317/9/8

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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