Results 41 to 50 of about 5,521 (168)

Assessment of ECCMIX component in RELAP5 based on ECCS experiment

open access: yesNuclear Engineering and Technology, 2020
ECCMIX component was introduced in RELAP5/MOD3 for calculating the interfacial condensation. Compared to other existing components in RELAP5, user experience of ECCMIX component is restricted to developmental assessment applications.
Gongle Song   +5 more
doaj   +1 more source

Uncertainty Analysis for RELAP5-3D [PDF]

open access: yes, 2011
In its current state, RELAP5-3D is a 'best-estimate' code; it is one of our most reliable programs for modeling what occurs within reactor systems in transients from given initial conditions. This code, however, remains an estimator. A statistical analysis has been performed that begins to lay the foundation for a full uncertainty analysis.
Pawel, Aaron J., Mesina, Dr. George L.
openaire   +2 more sources

Simulation of Spray Injection in the Pressurizer Using RELAP5 [PDF]

open access: yes, 2017
A modeling research using Relap5 to assess the pressurizer of a pressurized water reactor(PWR) power plant has been performed. The heater and water injection systems in the pressurizer system of the PWRare of greatimportance for system pressure control ...
Dibyo, S. (S), Susyadi, S. (S)
core   +1 more source

Development and analysis of passive residual heat-removal system on secondary side of small reactor

open access: yesHe jishu
BackgroundPassive residual heat-removal system (PRHRS) based on natural circulation has been widely used in small reactors connected on secondary side loop.PurposeThis study aims to develop and analyze a passive residual heat-removal system on the ...
DONG Botong   +7 more
doaj   +1 more source

RELAP5 Calculations of Bethsy 9.1b Test

open access: yesScience and Technology of Nuclear Installations, 2012
Recently, several advanced computational tools for simulating reactor system behavior during real and hypothetical transient scenarios were developed.
Andrej Prošek
doaj   +1 more source

Development of a RELAP5/MOD3.3 Module for MHD Pressure Drop Analysis in Liquid Metals Loops: Verification and Validation

open access: yesEnergies, 2021
Magnetohydrodynamic (MHD) phenomena, due to the interaction between a magnetic field and a moving electro-conductive fluid, are crucial for the design of magnetic-confinement fusion reactors and, specifically, for the design of the breeding blanket ...
Lorenzo Melchiorri   +4 more
doaj   +1 more source

RELAP5/MOD2 models and correlations [PDF]

open access: yes, 1988
A review of the RELAP5/MOD2 computer code has been performed to assess the basis for the models and correlations comprising the code. The review has included verification of the original data base, including thermodynamic, thermal-hydraulic, and geothermal conditions; simplifying assumptions in implementation or application; and accuracy of ...
Dimenna, R. A.   +7 more
openaire   +2 more sources

DEVELOPMENT OF THE ALTERNATE PRESSURIZED THERMAL SHOCK RULE (10 CFR 50.61a) IN THE UNITED STATES [PDF]

open access: yes, 2009
In the early 1980s, attention focused on the possibility that pressurized thermal shock (PTS) events could challenge the integrity of a nuclear reactor pressure vessel (RPV) because operational experience suggested that overcooling events, while not ...
Departament d'Arquitectura i Projectes Urbans   +1 more
core   +2 more sources

Thermal-hydraulic analysis of VVER-1000 residual heat removal system using RELAP5 code, an evaluation at the boundary of reactor repair mode

open access: yesAlexandria Engineering Journal, 2018
Removing the residual heat from a nuclear reactor is an important safety aspect of thermal hydraulic analysis. In this study, a typical VVER-1000 reactor residual heat removal system has been evaluated using RELAP5 thermal hydraulic loop code during cool-
Z. Tabadar   +3 more
doaj   +1 more source

Improvement and validation of the delayed neutron precursor transport model in RELAP5 code for liquid fuel molten salt reactor

open access: yesHe jishu, 2021
BackgroundThe liquid-fueled molten salt reactor (MSR) is one of the Generation IV advanced reactor concepts, which has unique advantages in aspects of safety, economy and nonproliferation.
LI Rui, CHENG Maosong, DAI Zhimin
doaj   +1 more source

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