Results 81 to 90 of about 186 (119)
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Hf COMPTON NEUTRON DETECTOR IN THE CORE OF WWER-1000
Problems of Atomic Science and TechnologyHafnium-based Compton self-powered detectors were investigated through MCNPX simulations of four fuel cycles in a WWER-1000 reactor core with fuel by “Westinghouse”. Seven detectors positioned at standard Rh detector locations were modeled to obtain: nuclide composition evolution, (n, γ)-reaction rates, neutron absorption rates, neutron and γ-ray flux ...
O. Ulybkin +6 more
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Application of Master Curve Approach to WWER-1000 RPV Materials
Fatigue, Fracture and Damage Analysis, Volume 1, 2002Part of the IRLA (International Residual Life Assessment) project was concentrated on a detailed analysis of existing and available fracture toughness data of WWER-1000 (Water-Water-Energetical-Reactor) reactor pressure vessel materials – steel 15Kh2NMFA (Ni-Cr-Mo-V) type and its welding metals.
Milan Brumovsky, Antonio Ballesteros
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SIMULATION OF TRANSIENT PROCESS ON WWER-1000 USING COUPLED APPROACH
POWER ENGINEERING: economics, technique, ecologyResearch and modeling of thermohydraulic processes in NPP equipment is necessary for a deep and improved justification of reliable and safe operation of nuclear installations. Taking into account the accumulated experience and the latest technologies, the study of thermohydraulic processes is developing in the direction of applying innovative ...
Yurii Onyshchuk, Sergii Klevtsov
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WWER-1000 base metal reference steel and its characterisation
Nuclear Engineering and Design, 2005The surveillance programmes of western power reactors include, in many cases, standard reference materials in addition to actual pressure vessel steels. These are specimens cut from standard steel plates (Heavy Section Steel Technology, JRQ, etc.) that are similar in composition and heat treatment to the base material in the respective reactor pressure
Beatriz Acosta +7 more
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Use of BEPU Technique for Analyses of BDBAs With Cooling in WWER-1000
Volume 5: Fuel Cycle and High and Low Level Waste Management and Decommissioning; Computational Fluid Dynamics (CFD), Neutronics Methods and Coupled Codes; Instrumentation and Control, 2009Hypothetical conditions with deep cooling of coolant are analyzed for serial Reactor Installation (RI) with WWER-1000. The beyond design basis accident (BDBA) scenarios are specially chosen, to reveal the effectiveness of internal properties of nuclear fuel and reactor emergency protection (EP) in conditions when criterial parameters are close to the ...
Grigory L. Ponomarenko +3 more
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WWER-1000 shutdown probabilistic risk assessment: An introductory insight
Annals of Nuclear Energy, 2008Abstract The probabilistic risk assessment has become an essential part of every plant’s safety/risk analysis. In the past, regulations and safety assessments of nuclear power plants were traditionally concentrated on full power operation. However, because of the events that might potentially occur during low power and shutdown modes, the assessment ...
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AUTONOMOUS THERMOSIPHON SYSTEM FOR WWER 1000 COOLDOWN
Heat Pipe Science and Technology, An International Journal, 2011Igor I. Sviridenko, Dmitriy V. Shevielov
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An improved method for automated control of the WWER-1000 power maneuvering
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Huiyu Zhou +3 more
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