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Keywords: decay heat removal
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Proceedings Papers

Proc. ASME. ICONE29, Volume 7B: Thermal-Hydraulics and Safety Analysis, V07BT07A034, August 8–12, 2022
Paper No: ICONE29-93119
... Abstract The natural circulation process with a thermal hydraulic interaction between the core and the plenum in a reactor vessel is a significant issue for the evaluation of the feasibility of a decay heat removal system using dipped-type direct heat exchangers (D-DHXs) in the upper plenum...
Proceedings Papers

Proc. ASME. ICONE29, Volume 7B: Thermal-Hydraulics and Safety Analysis, V07BT07A019, August 8–12, 2022
Paper No: ICONE29-92695
... Abstract In decay heat removal processes of the pebble-bed high temperature gas-cooled reactors, particle-scale radiative heat transfer between spheres is complicated for modeling and numerical simulations with traditional approaches. Artificial intelligence (AI) provides a new aspect to solve...
Proceedings Papers

Proc. ASME. ICONE28, Volume 1: Operating Plant Challenges, Successes, and Lessons Learned; Nuclear Plant Engineering; Advanced Reactors and Fusion; Small Modular and Micro-Reactors Technologies and Applications, V001T04A006, August 4–6, 2021
Paper No: ICONE28-64163
... blackout transients, both temperature and simulated both with reactor trip and as an anticipated transient pressure remained at safe levels. The innovative containment without scram (ATWS) scenario. design functioned as planned and was capable of efficient decay heat removal. The small break LOCA ceased...
Proceedings Papers

Proc. ASME. ICONE28, Volume 2: Nuclear Fuels, Research, and Fuel Cycle; Nuclear Codes and Standards; Thermal-Hydraulics, V002T07A005, August 4–6, 2021
Paper No: ICONE28-63380
... circulation, Decay heat In order to enhance the safety of sodium-cooled fast reactor removal, Subchannel, CFD (SFR), diverse decay heat removal systems (DHRSs) installed in the primary heat transfer system are considered, such as a direct reactor auxiliary cooling system (DRACS) with a dipped-type direct heat...
Proceedings Papers

Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B, 893-903, May 17–21, 2010
Paper No: ICONE18-29933
... 08 04 2011 The PERSEO experimental program was performed in the framework of a domestic research program on innovative safety systems with the purpose to increase the reliability of passive decay heat removal systems implementing in-pool heat exchangers. The conceived system was tested...
Proceedings Papers

Proc. ASME. ICONE10, 10th International Conference on Nuclear Engineering, Volume 2, 965-974, April 14–18, 2002
Paper No: ICONE10-22564
... 05 03 2009 A new design concept for a decay heat removal system in a liquid metal reactor is proposed. The new design utilizes a thermosyphon to enhance the heat removal capacity and its heat transfer characteristics are analyzed against the current PSDRS (Passive Safety Decay heat...
Proceedings Papers

Proc. ASME. ICONE12, 12th International Conference on Nuclear Engineering, Volume 1, 753-762, April 25–29, 2004
Paper No: ICONE12-49360
..., hejzlar@mit ABSTRACT A computer code (LOCA-COLA) has been developed at MIT for steady state analysis of convective heat transfer loops. In this work, it is used to investigate an external convection loop for decay heat removal of a post-LOCA GFR. The major finding is that natural circulation cooling...