Results 21 to 30 of about 19,514,073 (287)

MANAGING A PROLONGED STATION BLACKOUT CONDITION IN AHWR BY PASSIVE MEANS

open access: yesNuclear Engineering and Technology, 2013
Removal of decay heat from an operating reactor during a prolonged station blackout condition is a big concern for reactor designers, especially after the recent Fukushima accident.
MUKESH KUMAR   +4 more
doaj   +1 more source

Neutronic analysis of a heat-pipe cooled reactor

open access: yesActa Polytechnica CTU Proceedings, 2023
Heat-pipe cooled reactors belong to the group of nuclear reactors using heat pipes filled with liquid metals (such as sodium or potassium) to cool the core. Due to the passive heat removal system, there is no need to use closed loops with pumps, and the
Josef Sabol, Jan Frýbort
doaj   +1 more source

CFD Investigation of MHTGR Natural Circulation and Decay Heat Removal in P-LOFC Accident

open access: yesFrontiers in Energy Research, 2020
One of the key postulated accidents in a high-temperature gas-cooled reactor (HTGR) is the pressurized loss of forced cooling (P-LOFC) of the primary loop, which can be triggered by its primary helium circulator trip or turbine trip.
Chengqi Wang   +2 more
doaj   +1 more source

Plant system study of France–Japan common concept on Sodium-cooled Fast Reactor

open access: yesEPJ Nuclear Sciences & Technologies, 2022
This paper provides an overview of plant system studies to establish a common technical view for Sodium-cooled Fast Reactor (SFR) concept (the common SFR concept) between France and Japan based on ASTRID 600 and the new concept with downsized output ...
Kato Atsushi   +17 more
doaj   +1 more source

Simulation of Steady States of Helium Loop at Long Time Scenarios [PDF]

open access: yesMATEC Web of Conferences, 2020
The natural circulation helium loop is an experimental facility designed for the research of the possibility of utilizing natural convection cooling for the case of decay heat removal from a fast nuclear reactor.
Világi František   +6 more
doaj   +1 more source

Characteristic analysis of natural circulation residual heat removal in small reactor

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology, 2022
In order to study the characteristics of small helium-xenon cooled nuclear reactor that only relies on natural circulation to remove residual heat after shutdown, this paper carries out geometric and physical modeling of helium-xenon cooled nuclear ...
Haoyang Liao   +5 more
doaj   +1 more source

Passive decay heat removal system for water-cooled nuclear reactors [PDF]

open access: yes, 1990
This document describes passive decay-heat removal system for a water-cooled nuclear reactor which employs a closed heat transfer loop having heat-exchanging coils inside an open-topped, insulated evaporator located inside the reactor vessel, below its ...
Forseberg, C.W.
core   +1 more source

Thermal Characteristics of High Temperature Naturally Circulating Helium Cooling Loop

open access: yesJournal of Mechanical Engineering, 2018
The paper deals with the process properties in terms of the heat transfer, i.e. the thermal performance of the thermal-process units within a helium loop intended for the testing of the decay heat removal (DHR) from the model of the gas-cooled fast ...
Dzianik František   +2 more
doaj   +1 more source

Preliminary CFD analysis of innovative decay heat removal system for the European Sodium Fast Reactor concept

open access: yes, 2021
A major safety design objective for sodium cooled fast reactors is the practical elimination of the prolonged failure of the decay heat removal function.
Guidez, Joel (author)   +6 more
core   +1 more source

Hydrodynamic Properties of High Temperature Natural Circulating Helium Cooling Loop

open access: yesJournal of Mechanical Engineering, 2017
The paper deals with the hydrodynamic properties, i.e. the consumption of mechanical energy expressed by pressure drops within a helium loop intended for the testing of decay heat removal (DHR) from the model of a gas-cooled fast reactor (GFR).
Dzianik František, Gužela Štefan
doaj   +1 more source

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