Results 261 to 270 of about 23,190 (286)
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Risk-Informed Design Changes in a Passive Decay Heat Removal System
Nuclear Technology, 2008The failure probability of a passive decay heat removal (DHR) system after a loss-of-coolant accident (LOCA) is evaluated as part of a risk-informed design process for a helium-cooled fast reactor....
Giovanbattista Patalano +2 more
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Design and evaluation of Operation Grade Decay Heat Removal System of PFBR
Nuclear Engineering and Design, 2011Abstract The decay heat removal (DHR) system removes the decay heat generated (by radioactive decay of fission products) in the core after the reactor is shut down, thereby ensuring proper cooling of the core sub assemblies and limiting main vessel, internals and sodium temperature within safe limits.
L. Satish Kumar +4 more
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A passive decay heat removal system for LWRs based on air cooling
Nuclear Engineering and Design, 2015Abstract The present paper describes the capability of an air cooling system (ACS) to remove decay heat from a core of LWR such as an advanced boiling water reactor (ABWR) and a pressurized water reactor (PWR). The motivation of the present research is the Fukushima severe accident (SA) on 11 March 2011.
Hiroyasu Mochizuki, Takahiro Yano
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Experimental study on the transient response of passive decay heat removal system
Nuclear Engineering and Design, 2014Abstract The safety grade decay heat removal system (SGDHR) of prototype fast breeder reactor will be kept in a poised state during normal operating conditions with a small sodium flow in the SGDHR secondary system. Followed by a reactor trip, damper provided at air side of sodium to air heat exchanger opens and the air flow through AHX and sodium ...
V. Vinod +4 more
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Simulation Model of a Passive Decay Heat Removal System for Lead-Cooled Fast Reactors
Volume 6: Energy, Parts A and B, 2012The generation IV lead cooled fast reactors are of particular interest for the Italian research: several influential companies (Ansaldo Nucleare, ENEA) are involved in these important European R&D projects. At present, one significant European project in progress is LEADER (Lead cooled European Advanced DEmonstrator Reactor) which includes, among ...
DAMIANI, LORENZO, PINI PRATO, ALESSANDRO
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Progress in Nuclear Energy, 1998
Abstract To investigate the applicability of heat pipe to the decay hat removal (DHR) system of the modular HTRs, preliminary study of the Heat Pipe DHR System was performed. The results show that the Heat Pipe DHR System is applicable to the modular HTRs and its heat removal capability is sufficient.
K. Ohashi +4 more
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Abstract To investigate the applicability of heat pipe to the decay hat removal (DHR) system of the modular HTRs, preliminary study of the Heat Pipe DHR System was performed. The results show that the Heat Pipe DHR System is applicable to the modular HTRs and its heat removal capability is sufficient.
K. Ohashi +4 more
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Nuclear Engineering and Design, 2006
Increased reliance on passive emergency cooling using natural circulation of gas at elevated pressure is one of the major goals for the Gas-cooled Fast Reactor (GFR). Since GFR cores have high power density and low thermal inertia, the decay heat removal (DHR) in depressurization accidents is a key challenge.
Lee, JI Lee, JeongIk +3 more
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Increased reliance on passive emergency cooling using natural circulation of gas at elevated pressure is one of the major goals for the Gas-cooled Fast Reactor (GFR). Since GFR cores have high power density and low thermal inertia, the decay heat removal (DHR) in depressurization accidents is a key challenge.
Lee, JI Lee, JeongIk +3 more
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Decay heat removal in pool type fast reactor using passive systems
Nuclear Engineering and Design, 2012Abstract Post shutdown decay heat removal in a fast reactor is one of the most important safety functions which must be accomplished with a very high reliability. To achieve high reliability, the fast breeder reactor design has emphasized on passive or near passive decay heat removal systems utilizing the natural convection in the heat removal path ...
U. Parthasarathy +5 more
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Modeling and Experiments of a Passive Decay Heat Removal System for Advanced Nuclear Reactors
Volume 9: Student Paper Competition, 2017Within the field of research and development of innovative nuclear reactors, in particular Generation IV reactors and Small Modular Reactors (SMR), the design and the improvement of safety systems play a crucial role. Among all the safety systems high attention is dedicated to passive systems that do not need external energy to operate, with a very ...
BERSANO, ANDREA +4 more
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Application of heat pipes to decay heat removal systems in next generation reactors
Proceeding of Heat Pipe Technology: Volume 1. Fundamentals and Experimental Studies, 2023Ichiro Sugawara, Yoshiro Asahi
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