Journal ArticleDOI
The study of steam explosions in nuclear systems
TLDR
In this article, a comprehensive approach is described and sample results are provided on 2D explosions from the recently proposed microinteractions model (the esprose.m code) and on the chemical augmentation of steam explosions with highly reactive metals.About:
This article is published in Nuclear Engineering and Design.The article was published on 1995-04-02. It has received 61 citations till now. The article focuses on the topics: Steam explosion.read more
Citations
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Journal ArticleDOI
Thermal radiation from nonisothermal spherical particles of a semitransparent material
TL;DR: In this paper, the applicability of radiation transfer theory for calculations of the thermal radiation emitted by spherical particle of a semitransparent material, and in particular the determination of radial heat generation profiles, is analyzed.
Journal ArticleDOI
Experimental and analytical studies of melt jet-coolant interactions: a synthesis
TL;DR: In this article, the effects of melt physical properties, and the thermal hydraulics of the mixing zone, on jet fragmentation were investigated, and two innovative approaches to computational fluid dynamics (CFD) modeling of jet fragmentation are developed and employed for analysis.
Journal ArticleDOI
Explosive properties of water in volcanic and hydrothermal systems
Régis Thiéry,Lionel Mercury +1 more
TL;DR: In this paper, the physicochemical conditions under which water behaves as an explosive were described from a thermodynamic point of view, from a one-component perspective, introducing the notion of spinodals and delimiting the extent of metastable fields, and detailed the physical mechanisms (bubble nucleation, cavitation, spinodal decomposition) which are involved in these explosive transformations of water, which are related to the natural eruption topic.
Book ChapterDOI
Phreatomagmatic explosions in subaqueous volcanism
Bernd Zimanowski,Ralf Büttner +1 more
TL;DR: In this paper, a thermohydraulic explosion mechanism was identified that can explain the high kinetic energy release of phreatomagmatic explosion and the formation of typical subaerial pyroclastic deposits.
Journal ArticleDOI
On the proper formulation of safety goals and assessment of safety margins for rare and high-consequence hazards
TL;DR: The purpose of this paper is to explain the views on how to combine expert opinions that diverge widely, to follow them through to the definition of the methodology and its implementation, and to indicate some of the insights gained through the several practical applications available so far.
References
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Journal ArticleDOI
Heat flux distribution from a volumetrically heated pool with high Rayleigh number
TL;DR: In this article, the authors present experimental results on the heat flux distribution at the boundaries of volumetrically heated pools at high enough Rayleigh numbers to be directly relevant to the problem of retention of a molten corium pool inside the lower head of a reactor pressure vessel.
ReportDOI
Light water reactor lower head failure analysis
TL;DR: In this paper, the authors investigated the mode and timing of vessel lower head failure in different light water reactor designs and accident conditions and developed a method for determining which failure mode would occur first in different LWR designs.
An assessment of steam-explosion-induced containment failure
TL;DR: In this paper, a probabilistic framework is proposed to quantify the likelihood of steam explosion induced (cap alpha-mode) containment failure from core melt accidents in commercial light water reactors.
Journal ArticleDOI
An Assessment of Steam-Explosion-Induced Containment Failure. Part I: Probabilistic Aspects
TL;DR: In this article, a probabilistic framework is proposed to quantify the likelihood of steam-explosion-induced (α-mode) containment failure from core melt accidents in commercial light water reactors.
Journal ArticleDOI
A consistent approach to severe accident management
H. Tuomisto,T.G. Theofanous +1 more
TL;DR: The approach adopted for severe accident management (SAM) at the Loviisa nuclear power plant (in Finland) is presented and discussed in this article, which includes a number of significant hardware changes and procedures that allow lowering of the lower head thermal insulation and neutron shield assembly, opening of the ice condenser doors, and spraying (externally) of the steel shell of the containment.