MAIN PRINCIPLES AND THE SETTLEMENT – EXPERIMENTAL RESEARCHES PROVIDING SODIUMFIRE FAST REACTOR SAFETY

Authors & Affiliations

Vinogradov A.V., Kamaev A.A., Drobyshev A.V., Krjuchkov E.A., Pakhomov I.A.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia <

Vinogradov A.V. - R?searcher, A.I. Leypunsky Institute for Physics and Power Engineering. Contacts: 1, sq. Bondarenko, Obninsk, Kaluga reg., Russia, 249033, Tel.: (484) 399-50-56, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Kamaev A.A. – Deputy Director of Branch of Safety on Nuclear Power Plants, Head of Department, Cand. Sci. (Tech.), A.I. Leypunsky Institute for Physics and Power Engineering.
Drobyshev A.V. – Leading Researcher, Cand. Sci.(Tech.), Associate Professor, A.I. Leypunsky Institute for Physics and Power Engineering.
Krjuchkov E.A. –Head of Laboratory, A.I. Leypunsky Institute for Physics and Power Engineering.
Pakhomov I.A. – Head of Laboratory, A.I. Leypunsky Institute for Physics and Power Engineering.

Abstract

In article main principles and the basic results of settlement – experimental researches on maintenance of fire safety at possible leaks of sodium coolant in technological rooms of fast reactor power plants are submitted. As a basis for formation of principles of fire safety positions the existing normative documents on maintenance of fire safety on atomic engineering objects are serve. Positions of the additional developed normative document on maintenance the sodium fire safety are submitted, reflecting specificity of fast reactors (the usage of sodium as a coolant). Necessity for the given normative document has arisen during works on a substantiation of fire-prevention safety of fast reactors. The structure and design concept on fire safety system of maintained and perspective fast reactors are generated. The results of settlement - experimental researches on sodium fires system effectiveness in perspective fast reactor, efficiency of the first contour sodium leaks prevention subsystem and perspective sodium leaks detection system are submitted. The problem of fire safety on fast reactors such as the sodium jet expiration and sodium spray fire is considered. The basic results of experimental works on sodium spray fire are submitted, executed by foreign experts (France). The analytical parities for an estimation of the air pressure and temperatures growth in fast reactor technological rooms are given during sodium spray fire, received on the basis of the analysis of foreign experiments. By results of experimental researches with the expiration of sodium through defects in the equipment or pipelines the conclusion about an opportunity for safety localization of sodium leaks through defects in pipelines and the equipment is made at presence on them the thermal insulation and facing.

Keywords
fast reactor, sodium, coolant, safety, sodium leaks, sodium burning, sodium fire, fire-prevention safety, fire safety maintenance system, main constructions principles, settlement - experimental researches

Article Text (PDF, in Russian)

References

UDC 621.039.58

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2016, issue 5, 5:10