A nodal transport method for coupled fast-thermal reactor analysis

2021 ◽  
Vol 157 ◽  
pp. 108229
Author(s):  
Puran Deng ◽  
Won Sik Yang
Keyword(s):  
Thermal Reactor ◽  
Nodal Transport ◽  
Transport Method

Two-dimensional nodal transport method for triangular geometry

2007 ◽  
Vol 34 (5) ◽  
pp. 424-432 ◽  
Author(s):  
Haoliang Lu ◽  
Hongchun Wu ◽  
Liangzhi Cao ◽  
Yongqiang Zhou ◽  
Chunyu Xian ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Nodal Transport ◽  
Transport Method

Improved discrete nodal transport method for treating void regions

2017 ◽  
Vol 108 ◽  
pp. 172-180
Author(s):  
Zhitao Xu ◽  
Hongchun Wu ◽  
Yunzhao Li ◽  
Youqi Zheng
Keyword(s):  
Nodal Transport ◽  
Transport Method

scholarly journals The Application of the Combined Fission Matrix Theory in Fast Reactors

2021 ◽  
Vol 9 ◽  
Author(s):  
Donghao He ◽  
Tengfei Zhang ◽  
Xiaojing Liu
Keyword(s):  
High Efficiency ◽  
Matrix Theory ◽  
Neutron Transport ◽  
Thermal Reactor ◽  
Fast Reactors ◽  
Sodium Fast Reactor ◽  
The Monte Carlo Method ◽  
Transport Calculation ◽  
Rms Error ◽  
Transport Method

The combined fission matrix theory is a recently-developed hybrid neutron transport method. It features high efficiency, fidelity, and resolution whole-core transport calculation. The theory is based on the assumption that the fission matrix element ai,j is dominated by the property of the destination cell i. This assumption can be well explained in thermal reactors, and the combined fission matrix method has been validated in a series of thermal neutron system benchmarks. This work examines the feasibility of the combined fission matrix theory in fast reactors. The European Sodium Fast Reactor is used as the numerical benchmark. Compared to the Monte Carlo method, the combined fission matrix theory reports a 64 pcm keff difference and 8.3% 2D RMS error. The error is much larger than that in thermal reactors, and the correction ratio cannot significantly reduce the material discontinuity error in fast reactors. Overall, the combined fission matrix theory is more suited for thermal reactor transport calculations. Its application in fast reactors needs further developments.

scholarly journals Interface-flux nodal transport method

1991 ◽  
Vol 18 (11) ◽  
pp. 609-615 ◽  
Author(s):  
P. Kohut
Keyword(s):  
Nodal Transport ◽  
Transport Method

A higher order hexagonal-z nodal transport method

1995 ◽  
Vol 24 (1-3) ◽  
pp. 133-154 ◽  
Author(s):  
Antoine Van de Velde ◽  
Robert Beauwens
Keyword(s):  
Higher Order ◽  
Nodal Transport ◽  
Transport Method

Explicit formulation of a nodal transport method for discrete ordinates calculations in two-dimensional fixed-source problems

Kerntechnik ◽  
2014 ◽  
Vol 79 (2) ◽  
pp. 155-162 ◽  
Author(s):  
A. Tres ◽  
C. B. Picoloto ◽  
J. F. Prolo Filho ◽  
R. D. da Cunha ◽  
L. B. Barichello
Keyword(s):  
Discrete Ordinates ◽  
Two Dimensional ◽  
Explicit Formulation ◽  
Nodal Transport ◽  
Transport Method

The nodal transport method for general triangular meshes in (X,Y)-geometry

1986 ◽  
Vol 18 (1-2) ◽  
pp. 153-160 ◽  
Author(s):  
Richard R. Paternoster ◽  
Wallace F. Walters
Keyword(s):  
Triangular Meshes ◽  
Nodal Transport ◽  
Transport Method

A new tool for rapid development of electron microscopy negatives and micrographs: Initial impressions of the MOHR/PRO-8 processor

1992 ◽  
Vol 50 (2) ◽  
pp. 972-973
Author(s):  
James C. Long
Keyword(s):  
Electron Microscopy ◽  
Processing Time ◽  
Rapid Development ◽  
Processing Times ◽  
Initial Impressions ◽  
Transport Method

Over the years, many techniques and products have been developed to reduce the amount of time spent in a darkroom processing electron microscopy negatives and micrographs. One of the latest tools, effective in this effort, is the Mohr/Pro-8 film and rc paper processor.At the time of writing, a unit has been recently installed in the photographic facilities of the Electron Microscopy Center at Texas A&M University. It is being evaluated for use with TEM sheet film, SEM sheet film, 35mm roll film (B&W), and rc paper.Originally designed for use in the phototypesetting industry, this processor has only recently been introduced to the field of electron microscopy.The unit is a tabletop model, approximately 1.5 × 1.5 × 2.0 ft, and uses a roller transport method of processing. It has an adjustable processing time of 2 to 6.5 minutes, dry-to-dry. The installed unit has an extended processing switch, enabling processing times of 8 to 14 minutes to be selected.

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