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A study of the effect of binary oxide materials in a single droplet vapor explosion
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.
2013 (English)In: Nuclear Engineering and Design, ISSN 0029-5493, E-ISSN 1872-759X, Vol. 264, 168-175 p.Article in journal (Refereed) Published
Abstract [en]

In an effort to explore fundamental mechanisms that may govern the effect of melt material on vapor explosion's triggering, fine fragmentation and energetics, a series of experiments using a binary-oxide mixture with eutectic and non-eutectic compositions were performed. Interactions of a hot liquid (WO3-CaO) droplet and a volatile liquid (water) were investigated in well-controlled, externally triggered, single-droplet experiments conducted in the Micro-interactions in steam explosion experiments (MISTEE) facility. The tests were visualized by means of a synchronized digital cinematography and continuous X-ray radiography system, called simultaneous high-speed acquisition of X-ray radiography and photography (SHARP). The acquired images followed by further analysis indicate milder interactions for the droplet with non-eutectic melt composition in the tests with low melt superheat, whereas no evident differences between eutectic and non-eutectic melt compositions regarding bubble dynamics, energetics and melt preconditioning was observed in the tests with higher melt superheat.

Place, publisher, year, edition, pages
2013. Vol. 264, 168-175 p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-134675DOI: 10.1016/j.nucengdes.2013.02.017ISI: 000326767400019ScopusID: 2-s2.0-84885180403OAI: diva2:677270

QC 20131209

Available from: 2013-12-09 Created: 2013-11-27 Last updated: 2013-12-09Bibliographically approved

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