Explosive Fragmentation of Molten Salt in Subcooled Water

Agaltsov, A. M.; Vavilov, S. N.

doi:10.1134/s0018151x18060275

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…Melt‐water explosion in the aluminum casting industry is one of potential hazards to personnel and facility 1,2 . Such explosions named fuel‐coolant interactions (FCIs) also could occur in other industrial applications, for example, the accidental spills of liquefied natural gas over water, 3 the direct contact of molten salt with water in paper‐pulp process, 4 even in the core meltdown accident of nuclear reactor 5 . These hazardous events involve the explosive boiling of volatile liquid in an extremely brief period, accompanied by the strong shock wave and splash of hot materials in general.…”

Section: Introductionmentioning

confidence: 99%

Study on large‐scale steam explosion of molten aluminum and water

Shen

Chen

Zhongjie

et al. 2020

Process Safety Progress

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Explosive interaction can be originated from an inadvertent contract of molten metal and water, and most explosive accidents to date have been reported in the aluminum industry. In most cases, this incident is not a major problem to production, but do occur at some plants. Most previous work at small-scale experiments by bringing melt droplets into a water pool, with external trigger and controlled condition. These results are difficult to extend to large-scale events for the effect of scale. A new selftriggering test setup to deal with~10 kg molten aluminum for interaction under open condition was designed in this article, and the explosion energetics were first measured quantitatively. Results show that the mild explosion often occurs at relatively high aluminum/water mass ratio. Conversely, an intense explosion is more likely with higher water content. The peak temperature of intense explosion is only 247 C, and the overpressure detected in the surroundings is about 0.113 MPa. It is suggested that the carbon steel with high surface wettability could promote a spontaneous explosion, and the merely addition of metal oxide has little effect on the initiation of explosion. In view of above, two possible explosion scenarios are assessed on the superheated limit theory.

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Section: Introductionmentioning

confidence: 99%

Study on large‐scale steam explosion of molten aluminum and water

Shen

Chen

Zhongjie

et al. 2020

Process Safety Progress

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“…Much focus has been given on the energy dissipation dynamics of the detonation, but limited attention is paid to the understanding of structure stability and energy storage. An examination of the molten NaCl explosive fragmentation in water suggested that the lower viscosity of the liquid salts foresters the explosion [12]. Density functional theory computations [13] suggested that the nonlocal X:H van der Waals dispersive interaction is dominant to the cohesive energies of the molecular crystals without the intramolecular or their coupling being involved.…”

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confidence: 99%

What Makes an Explosion Happen?

Sun¹

2019

Preprint

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What makes an explosion happen?

Sun

Yao

Zhang

et al. 2020

Journal of Molecular Liquids

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Energy density and structure stability are of key concerns in designing and synthesizing energetic materials such as CNHC molecular crystals and the emerging cyclo-N5complexes for desired explosive functionalities with a mechanism being open for exploration. An extension of the recent progress in solvation [Sun, Unprecedented O::O compression and HH fragilization in Lewis solutions (perspective).

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Explosive Fragmentation of Molten Salt in Subcooled Water

Cited by 3 publications

References 5 publications

Study on large‐scale steam explosion of molten aluminum and water

Study on large‐scale steam explosion of molten aluminum and water

What Makes an Explosion Happen?

What makes an explosion happen?

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