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Heat Transfer Research
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ISSN Print: 1064-2285
ISSN Online: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v32.i1-3.140
9 pages

Experimental and Computational Investigations of Heat Transfer and Stability of Boiling Liquid Metal in a Model of an Array of the Fast-Neutron Reactor Fuel Elements

A. D. Efanov
State Scientific Center of the Russian Federation - Physical and Power Engineering Institute, 1 Bondarenko Sq., 249033, Obninsk, Russia
E. F. Ivanov
State Scientific Center of the Russian Federation - Physical and Power Engineering Institute, Obninsk, Russia
V. P. Kolesnik
State Scientific Center of the Russian Federation - Physical and Power Engineering Institute, Obninsk, Russia
O. A. Korkhov
State Scientific Center of the Russian Federation - Physical and Power Engineering Institute, Obninsk, Russia
V. L. Mal'kov
State Scientific Center of the Russian Federation - Physical and Power Engineering Institute, Obninsk, Russia
D. E. Martsinyuk
State Scientific Center of the Russian Federation - Physical and Power Engineering Institute, Obninsk, Russia
K. S. Rymkevich
State Scientific Center of the Russian Federation - Physical and Power Engineering Institute, Obninsk, Russia
A. P. Sorokin
State Scientific Center of the Russian Federation - Physical and Power Engineering Institute, Obninsk, Russia
Galina Pavlovna Bogoslovskaya
SSC RF "Institute of Physics and Power Engineering" Bondarenko sq. 1, Obninsk, Kaluga Region, 249033, Russia

ABSTRACT

The paper presents and analyzes experimental and calculated data on the boiling of a sodium-potassium heat carrier in an array of simulators of fuel elements in a loop with natural circulation which models the conditions of operation of a fast reactor in the regime of accidental cooling. At different mass flow rates of a heat carrier, three regimes of boiling were obtained: a stable (bubble) regime at the initial stage of boiling, then a pulsing (slug) regime which, on increase in the power supply, passed into the second stable (mist) regime of boiling.


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