スリーマイル島原発事故の化学工学による検証

大江 修造

doi:10.11363/kaihatsukogaku.31.19

書誌事項

タイトル別名

Examining Three Mile Island from a Chemical Engineering View Point

説明

The Three Mile Island Unit-2 accident was examined from the view point of chemical engineering. It was concluded that preventive measures for the TMI atomic power plant were insufficient compared with those of a chemical plant. Zirconium alloy cladding reacts with steam and generates a hydrogen and zirconium oxide, which loses mechanical strength. As a result, the fuel element melted. At the temperature of 871°C, zirconium alloy starts to react with steam.<BR>Zr + 2H₂O → ZrO₂ + 2H₂ + 141 Kcal (1)<BR>The reaction rate was observed by Pawel et al., and they presented a rate equation called the Cathcart-Pawel equation. According to the Cathcart-Pawel equation , zirconium alloy cladding was oxidized for 40 minutes at 1649°C (Schneider, 1980). This paper will state that the simulation of a hydrogen explosion at a higher temperature results in a significantly shorter reaction time. For example, at 1000°C the time is 100 hours, whereas at 1500°C it is two hours.

収録刊行物

開発工学

開発工学 31 (1), 19-22, 2011

日本開発工学会

詳細情報詳細情報について

CRID: 1390001205359839872

NII論文ID: 130002576537

DOI: 10.11363/kaihatsukogaku.31.19

ISSN: 21852480; 13437623

本文言語コード: ja

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JaLC
CiNii Articles

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