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Energetic fuel-coolant interactions considering chemical reactions

Book ·
OSTI ID:400853
;  [1]
  1. Univ. of Wisconsin, Madison, WI (United States)
A propagation/expansion model developed for large scale vapor explosions was enhanced to consider the possibility of a chemical reaction between metallic fuel and the water coolant during an energetic fuel-coolant interaction (FCI). This lumped volume model, based on a fragmentation concept involving film collapse, coolant jet impingement and entrapment, predicts the correct qualitative trends for recent Sandia NPR experiments involving molten aluminum dropped into water, as a function of fuel composition, coolant temperature, ambient pressure, coolant/fuel mass ratio, and initial constraints. Chemical reactions between the molten metal and the water vapor in the surrounding film are considered and predicts aluminum ignition at 1,225 K compared to the empirically observed chemical assisted vapor explosion at 1,150 K.
OSTI ID:
400853
Report Number(s):
CONF-950828--
Country of Publication:
United States
Language:
English

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