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Experimental and Computational Studies of LNPP-2 Passive System for Severe Accident Management

[+] Author Affiliations
Valery G. Sidorov, Vladimir Bezlepkin, Sergej Alekseev, Sergey Semashko, Igor Ivkov, Vladimir Kukhtevich

The Joint Stock Company Saint Petersburg Research and Design Institute ATOMENERGOPROEKT (JSC SPAEP), St. Petersburg, Russia

Paper No. ICONE18-29857, pp. 589-596; 8 pages
  • 18th International Conference on Nuclear Engineering
  • 18th International Conference on Nuclear Engineering: Volume 3
  • Xi’an, China, May 17–21, 2010
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-4931-6
  • Copyright © 2010 by ASME


The project of nuclear station LNPP-2 with a reactor power plant VVER type by electrical power 1200 MVt involves a number of new design solutions to increase of parameters of safety. The passive containment heat removal system and heat removal system via steam generators is including of number of such solutions. Passive heat removal system via steam generators (PHRS/SG) is assigned for remove of residual heat of reactors core to final heat absorber (atmosphere) through a secondary circuit at DEC accident. The system PHRS/SG duplicates cooling-down system via SG to final heat absorber in case of impossibility of realization of its design functions. Containment heat removal system (PHRS/C) is assigned for remove of residual heat from containment in accidents with heat-transfer emissions from primary circuit. PHRS/C duplicates functions of a spray system to reduce of pressure under containment in case of spray system failure. In the substantiation of passive security systems the complex in SPbAEP of computational and experimental analysis was executed, the main results of which are shown in the present report.

Copyright © 2010 by ASME
Topics: Accidents



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