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Keywords: subchannel
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Proceedings Papers

Proc. ASME. ICONE29, Volume 7A: Thermal-Hydraulics and Safety Analysis, V07AT07A012, August 8–12, 2022
Paper No: ICONE29-89360
... the radial power reference distribution of PWR is obtained, which can be used by engineers when designing the reference radial power distribution. radial power distribution DNBR 1/4 core 1/4 hot assembly subchannel Proceedings of the 2022 29th International Conference on Nuclear Engineering...
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
... costs while maintaining accuracy. In this paper, the application of the volume porosity subchannel analysis method by CFD code for fuel subassemblies (subchannel CFD model) to the RV-CFD model was attempted. shape factor In the subchannel CFD model, the porous media approach was used to consider...
Proceedings Papers

Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A059, August 4–6, 2021
Paper No: ICONE28-64623
... efficiency of subchannel method. The interface code is developed in python for data transfer between RMC and CTF. The coupling simulation is firstly performed under 1MW, 1.5MW and 2MW steady state. The temperature and power distribution are obtained. The results are compared with the experimental data...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T13A037, August 4–5, 2020
Paper No: ICONE2020-16679
...INVESTIGATION ON VELOCITY DISTRIBUTION IN THE SUBCHANNELS OF PIN BUNDLE WITH WRAPPING WIRE: EVALUATION OF REYNOLDS NUMBER DEPENDENCE IN 3-PIN BUNDLE Kosuke Aizawa Japan Atomic Energy Agency Ibaraki, Japan Tomoyuki Hiyama Japan Atomic Energy Agency Ibaraki, Japan Masahiro Nishimura Japan Atomic...
Proceedings Papers

Proc. ASME. ICONE20-POWER2012, Volume 3: Thermal-Hydraulics; Turbines, Generators, and Auxiliaries, 299-308, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-54404
... and influence the heat removal capability. Therefore, it is important to obtain the flow velocity distribution in a wire wrapped pin bundle. In this study, water experiments were carried out to investigate the detailed velocity distribution in inner subchannel of the pin bundle geometry. These basic data...
Topics: Fuels, Wire
Proceedings Papers

Proc. ASME. ICONE10, 10th International Conference on Nuclear Engineering, Volume 3, 399-411, April 14–18, 2002
Paper No: ICONE10-22264
... are obtained for the distributions of the time mean axial velocity, lateral velocity, and turbulent intensities in 3 component directions over a center subchannel along axial locations and compared with the previous results of split vane grid that has two vanes in a cell. The results show that the mixing...
Proceedings Papers

Proc. ASME. ICONE12, 12th International Conference on Nuclear Engineering, Volume 2, 223-231, April 25–29, 2004
Paper No: ICONE12-49106
... the thermal/hydraulic viewpoint, the CHF margin is very important in order to extend its life. Particularly, the mixing flow or cross flow between the subchannels have to be reinforced for this purpose. From the mechanical/structural viewpoint, the critical strength and the fuel rod support behaviour...