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Keywords: VHTR
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Proceedings Papers

Proc. ASME. ICONE29, Volume 2: Nuclear Fuel and Material, Reactor Physics and Transport Theory, and Fuel Cycle Technology, V002T02A066, August 8–12, 2022
Paper No: ICONE29-92858
... Abstract Very-high-temperature gas-cooled reactors (VHTR) are being developed to provide higher thermal efficiency and high-temperature process heat. Zirconium carbide (ZrC) has been proposed as a potential coating material for TRistructural-ISOtropic (TRISO) coated fuel particles because...
Proceedings Papers

Proc. ASME. ICONE29, Volume 2: Nuclear Fuel and Material, Reactor Physics and Transport Theory, and Fuel Cycle Technology, V002T02A003, August 8–12, 2022
Paper No: ICONE29-88943
... Abstract Helium is generally used as coolant in Very-High-Temperature Reactor (VHTR), but a small amount of impurity gas will inevitably be mixed in the primary coolant during construction, operation and maintenance. At high temperature, these impurity gases will corrode with the alloy...
Proceedings Papers

Proc. ASME. ICONE29, Volume 2: Nuclear Fuel and Material, Reactor Physics and Transport Theory, and Fuel Cycle Technology, V002T02A002, August 8–12, 2022
Paper No: ICONE29-88939
... Abstract IN617 was considered the primary material candidate for the IHX in the VHTR. Researching microstructure evolution during high-temperature creep of IN617 helped understand its fracture laws and guide IHX operation under creep loading. Creep tests of IN617 were conducted under 19 MPa, 24...
Proceedings Papers

Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A055, August 4–6, 2021
Paper No: ICONE28-64553
... configuration of GTHTR300C to investigate the mixing In recent years, a next-generation nuclear power plant, the process of a two-component gas of helium and air. The very-high-temperature reactor (VHTR), has been attracting experimental apparatus consisted of a coaxial double cylinder attention worldwide...
Proceedings Papers

Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A054, August 4–6, 2021
Paper No: ICONE28-64552
... Proceedings of the 2021 28th International Conference on Nuclear Engineering ICONE28 August 4-6, 2021, Virtual, Online ICONE28-64552 HEAT TRANSFER AND FLUID FLOW CHARACTERISTIC OF U-SHAPED FLOW CHANNEL FOR APPLICATIONS OF VHTR Yasuaki Takayama1 and Tetsuaki TAKEDA2 1Integrated Graduate School...
Proceedings Papers

Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 6, 59-63, May 17–21, 2010
Paper No: ICONE18-29392
... and concentration difference obtained with a CFD model agreed well with that measured by bench experiments, which showed natural circulation pattern in a simplified reactor. VHTR GTHTR300 SCAD air ingress Atsuhiko TERADA, Xing L. YAN, Ryutaro HINO, Hiroyuki SATO Japan Atomic Energy Agency Nuclear...
Proceedings Papers

Proc. ASME. ICONE17, Volume 1: Plant Operations, Maintenance, Engineering, Modifications and Life Cycle; Component Reliability and Materials Issues; Next Generation Systems, 779-785, July 12–16, 2009
Paper No: ICONE17-75007
... 23 02 2010 The Very High Temperature Gas Cooled Reactor (VHTR) has been selected as a high energy heat source of the order of 950°C for nuclear hydrogen generation, which can produce hydrogen from water or natural gas. A primary hot gas duct (HGD) as a coaxial double-tube type cross...
Proceedings Papers

Proc. ASME. ICONE16, Volume 4: Structural Integrity; Next Generation Systems; Safety and Security; Low Level Waste Management and Decommissioning; Near Term Deployment: Plant Designs, Licensing, Construction, Workforce and Public Acceptance, 331-338, May 11–15, 2008
Paper No: ICONE16-48334
... 09 07 2009 This paper presents an analysis of TRU-fueled VHTR systems focusing on applications requiring an extended operation with minimized control and no refueling (single-batch mode). As an example of such applications, international deployment opportunities for grid-appropriate...
Proceedings Papers

Proc. ASME. ICONE14, Volume 1: Plant Operations, Maintenance and Life Cycle; Component Reliability and Materials Issues; Codes, Standards, Licensing and Regulatory Issues; Fuel Cycle and High Level Waste Management, 929-934, July 17–20, 2006
Paper No: ICONE14-89563
... the possibility, advantages and limitations of achieving ultra-long life VHTR (Very High Temperature Reactor) configurations by utilizing minor actinides as a fuel component. The postulated principal mechanism is an enhanced involvement of self-generated fissile compositions based on spent LWR fuel. Since pebble...
Proceedings Papers

Proc. ASME. ICONE14, Volume 4: Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition, 499-506, July 17–20, 2006
Paper No: ICONE14-89155
... is evaluated. The influence of the various variables and constraints is also pointed out. techno-economic optimization genetic algorithms VHTR Proceedings of ICONE14 International Conference on Nuclear Engineering July 17-20, Miami, Florida, USA P : pressure [Pa] Proceedings of ICONE14...