Nuclear Engineering and Technology

  • 제51권1호
  • /
  • Pages.95-103
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  • 2019
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Stratified steam explosion energetics

  • Jo, HangJin (Department of Engineering Physics, University of Wisconsin) ;
  • Wang, Jun (Department of Engineering Physics, University of Wisconsin) ;
  • Corradini, Michael (Department of Engineering Physics, University of Wisconsin)
  • 투고 : 2018.05.03
  • 심사 : 2018.08.24
  • 발행 : 2019.02.25
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초록

Vapor explosions can be classified in terms of modes of contact between the hot molten fuel and the coolant, since different contact modes may affect fuel-coolant mixing and subsequent vapor explosion energetics. It is generally accepted that most vapor explosion phenomena fall into three different modes of contact; fuel pouring into coolant, coolant injection into fuel and stratified fuel-coolant layers. In this study, we review previous stratified steam explosion experiments as well as recent experiments performed at the KTH in Sweden. While experiments with prototypic reactor materials are minimal, we do note that generally the energetics is limited for the stratified mode of contact. When the fuel mass involved in a steam explosion in a stratified geometry is compared to a pool geometry based on geometrical aspects, one can conclude that there is a very limited set of conditions (when melt jet diameter is small) under which a steam explosion is more energetic in a stratified geometry. However, under these limited conditions the absolute energetic explosion output would still be small because the total fuel mass involved would be limited.

키워드

참고문헌

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피인용 문헌

  1. Comparison of Triggered Steam Explosion Behavior According to Corium Injection Mode in TROI Facility from TEXAS-V Code Simulations vol.207, pp.10, 2021, https://doi.org/10.1080/00295450.2020.1820827
  2. Modelling of water jet impact on molten metal vol.2119, pp.1, 2019, https://doi.org/10.1088/1742-6596/2119/1/012073