Results 21 to 30 of about 2,961,144 (192)

Correlations of Nucleate Boiling Heat Transfer and Critical Heat Flux for External Reactor Vessel Cooling [PDF]

open access: yesHeat Transfer: Volume 2, 2005
Four types of steady-state boiling experiments were conducted to investigate the efficacy of two distinctly different heat transfer enhancement methods for external reactor vessel cooling under severe accident conditions. One method involved the use of a thin vessel coating and the other involved the use of an enhanced insulation structure.
Yang, J.   +4 more
openaire   +3 more sources

Application of CFD modelling to external nuclear reactor vessel cooling

open access: yes, 2018
In nuclear power plants, passive cooling can increase the safety of reactors whilst reducing costs and design complexity. However, the effectiveness of passive mechanisms needs to be carefully proved with reliable computational modelling.
Colombo, M, Fairweather, M
openaire   +3 more sources

Experimental Research for CHF Sensitivity of Heat Flux Distribution under IVR Conditions

open access: yesScience and Technology of Nuclear Installations, 2022
In-vessel retention (IVR) through external reactor vessel cooling (ERVC) is one of the most effective severe accident mitigation measures in the nuclear power plants.
Shilei Han   +3 more
doaj   +1 more source

Predictive functional control for the temperature control of a chemical batch reactor [PDF]

open access: yes, 2006
A predictive functional control (PFC) technique is applied to the temperature control of a pilot-plant batch reactor equipped with a mono-fluid heating/cooling system.
Cabassud, Michel   +2 more
core   +1 more source

Development of a large-deformation model for the pressure-vessel lower head and analysis of its application in the FOREVER experiment

open access: yesHe jishu, 2023
BackgroundThe in-vessel retention (IVR) strategy is an important measure for mitigating severe reactor accidents. It has been successfully applied to the severe-accident management of advanced pressurized water reactors such as the AP1000, HPR1000, and ...
ZHAI Runze   +5 more
doaj   +1 more source

External Reactor Vessel Cooling Evaluation for Severe Accident Mitigation in NPP Krško [PDF]

open access: yes, 2016
The In-Vessel corium Retention (IVR) through the External Reactor Vessel Cooling (ERVC) is mean for maintaining the reactor vessel integrity during a severe accident, by cooling and retaining the molten material inside the reactor vessel. By doing this,
Mihalina, Mario   +2 more
core   +1 more source

Residence time distribution measurements in an external-loop airlift reactor: Study of the hydrodynamics of the liquid circulation induced by the hydrogen bubbles [PDF]

open access: yes, 2011
A detailed study of the residence time distribution (RTD) analysis of liquid phase has been performed in an external-loop airlift reactor of 20 L nominal volume, regarded as a global unit and discriminating its different sections (riser, gas–liquid ...
A.H. Essadki   +7 more
core   +1 more source

DataSheet1_Research on Optimized Design of In-Vessel Retention–External Reactor Vessel Cooling Strategy and Negative Effect Assessment.pdf

open access: yes, 2022
Due to large uncertainty, the effectiveness of in-vessel retention (IVR) with external reactor vessel cooling (ERVC) for high-power reactors cannot be fully demonstrated during the transient process. To optimize the current IVR-ERVC strategy, the concept
Dekui Zhan (12130140)   +4 more
core   +1 more source

CFD Simulation of Single- and Two-Phase Natural Convection in the Context of External Reactor Vessel Cooling [PDF]

open access: yes, 2017
In recent decades, and with renewed importance after the events in Fukushima, the nuclear community has focused on the opportunity to rely on passive safety and, after plant shutdown, to ensure that reactor cooling can be safely guaranteed by natural ...
Colombo, M, Fairweather, M
core   +8 more sources

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