Authors & Affiliations
Grabezhnaya V.A., Mikheyev A.S., Alekhin A.V.
A.I. Leipunsky Institute for Physics and Power Engineering, Obninsk, Russia
Grabezhnaya V.A. – Leading Researcher, Cand. Sci. (Tech.). Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7 (484) 399-86-86; e-mail:
Mikheyev A.S. – Senior Researcher.
Alekhin A.V. – Lead Systems Engineer, A.I. Leipunsky Institute for Physics and Power Engineering.
Abstract
Since the middle of the last century power
units of nuclear power plants with fast reactors cooled by liquid metal have
been created, built, and operated in the world. Steam generator (SG) is one of
the main elements of such power units. For more than half a century in the SSC
RF – IPPE at the SPRUT test facility on SG models work is carried out on the
thermal hydraulic justification of steam generators of various reactor plants
heated by different liquid-metals. Single-tube models of sodium-heated steam
generators were tested to justify the evaporators of power units BN-350,
BN-600; lead-heated multi-tube models were tested to justify the BREST-OD-300
SG, as well as single-tube models of sodium-heated steam generators were tested
for new generation reactors of the BN-type. The main purpose of SG testing is
to confirm the design characteristics, substantiate the thermohydraulic
stability of steam generating channels when operating at specified mode parameters.
This paper gives a brief description of the tested SG models, presents the main results obtained
during the tests. It is shown that during the tests, special attention was paid
to the identification of modes with thermohydraulic instability at the
operation of the steam generating channel, the occurrence of which
significantly reduces the service life of the SG.
Keywords
steam generator, BN-350, BN-600,
BREST-OD-300, sodium, lead, water, one-tube model, fragment model,
thermohydraulic stability, heat transfer, longitudinal flow, transverse flow,
basic oxygen mode, lead on the oxygen saturation line
Article Text (PDF, in Russian)
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