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

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v38.i6.20
pages 495-505

Computational Study of Nonstationary Modes of Operation of a Solar Sodium Evaporator with Supply of a Nonuniform Heat Flux

O. E. Maletskaya
Institute of Technical Thermophysics, National Academy of Sciences, Ukraine
Natalia Mikhailivna Fialko
Institute of Technical Thermophysics, National Academy of Sciences, Ukraine
E. N. Shevchuk
Institute of Technical Thermophysics, National Academy of Sciences, Ukraine
V. L. Yurchuk
Institute of Technical Thermophysics, National Academy of Sciences, Ukraine

ABSTRAKT

Experimental data on superheating during sodium boiling-up in a high-temperature receiver-evaporator, receiving concentrated solar radiation, has been analyzed for the first time. The relationship for calculation of the onset of boiling depending on the saturation temperature (pressure) and the heat-flux density has been obtained. This was used as the basis for evaluating the impact of nonuniformity of a nonstationary heat flux on the temperature field of the evaporator.


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