Examining Three Mile Island from a Chemical Engineering View Point

DOI

Bibliographic Information

Other Title
  • スリーマイル島原発事故の化学工学による検証

Description

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.

Journal

Details 詳細情報について

  • CRID
    1390001205359839872
  • NII Article ID
    130002576537
  • DOI
    10.11363/kaihatsukogaku.31.19
  • ISSN
    21852480
    13437623
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top