Structural Integrity Demonstration of High Burnup Fuel Rod

2006 ◽  
Author(s):  
Tong Liu ◽  
Danrong Song ◽  
Hua Zhao ◽  
Kaiming Wang
Keyword(s):  
Structural Integrity ◽  
Design Criterion ◽  
Current Status ◽  
Design Codes ◽  
Fuel Rod ◽  
Fuel Models ◽  
High Burnup ◽  
Near Future

This paper introduces the current status and the work has been done for structural integrity demonstration of high burnup fuel in China. The FRAMATOME ANP COCCINEL, FLAMBE and MISTIGRI design codes are used in the structural integrity demonstration of fuel rod. This paper presents the results of structural integrity demonstration of AFA3G fuel rod in GNPS. All the design criterion are met. Based on CAFA program, the new fuel models are planning to be developed in the near future.

scholarly journals Simplified Model of a High Burnup Spent Nuclear Fuel Rod under Lateral Impact Considering a Stress-Based Failure Criterion

Metals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1631
Author(s):  
Seyeon Kim ◽  
Sanghoon Lee
Keyword(s):  
Nuclear Fuel ◽  
Failure Criterion ◽  
Power Plants ◽  
Structural Integrity ◽  
Spent Nuclear Fuel ◽  
Simplified Model ◽  
Beam Model ◽  
Detailed Model ◽  
Fuel Rod ◽  
High Burnup

The inventory of spent nuclear fuel (SNF) generated in nuclear power plants is continuously increasing, and it is very important to maintain the structural integrity of SNF for economical and efficient management. The cladding surrounding nuclear fuel must be protected from physical and mechanical deterioration, which causes fuel rod breakage. In this study, the material properties of the simplified beam model of a SNF rod were calibrated for a drop accident evaluation by considering the pellet–clad interaction (PCI) of the high burnup fuel rod. In a horizontal drop, which is the most damaging during a drop accident of SNF, the stress in the cladding caused by the inertia action of the pellets has a great effect on the integrity of the fuel rod. The failure criterion for SNF was selected as the membrane plus bending stress through stress linearization in the cross-sections through the thickness of the cladding. Because the stress concentration in the cladding around the vicinity of the pellet–pellet interface cannot be simulated in a simplified beam model, a stress correction factor is derived through a comparison of the simplified model and detailed model. The applicability of the developed simplified model is checked through dynamic impact simulations. The developed model can be used in cask level analyses and is expected to be usefully utilized to evaluate the structural integrity of SNF under transport and in storage conditions.

New high burnup fuel models for NRC`s licensing audit code, FRAPCON

1996 ◽  
Author(s):  
D D Lanning ◽  
C E Beyer ◽  
C L Painter
Keyword(s):  
Fuel Models ◽  
High Burnup

scholarly journals Discussion: Producer Bargaining: Its Current Status and Distribution of Benefits

1973 ◽  
Vol 5 (1) ◽  
pp. 45-46
Author(s):  
H. M. Harris
Keyword(s):  
Present Status ◽  
Dairy Industry ◽  
Current Status ◽  
Complete Analysis ◽  
Key Aspects ◽  
Near Future

We should be indebted to Dr. Berry for his cogent observations on some key aspects of the producer bargaining issue. At the same time, however, I would be remiss in my role as discussant if I failed to point out two major shortcomings of his paper. First, the current status of producer bargaining is treated incompletely. Second, and more glaring, is the complete omission of any discussion of the distribution of benefits of agricultural bargaining.It should be mentioned that both these shortcomings could be remedied simply by changing the title of the paper. For example, if the address was entitled, “Producer Bargaining: Its Present Status in the Dairy Industry,” these two criticisms would be largely unwarranted. I must also confess that if the assigned roles of Professor Berry and myself were reversed, he would very likely be levying the same comments about my presentation. For a complete analysis of the assigned topic involves a Herculean task – but a task with which we must come to grips in the near future.

CoA biosynthesis in archaea

2013 ◽  
Vol 41 (1) ◽  
pp. 427-431 ◽  
Author(s):  
Haruyuki Atomi ◽  
Hiroya Tomita ◽  
Takuya Ishibashi ◽  
Yuusuke Yokooji ◽  
Tadayuki Imanaka
Keyword(s):  
Metabolic Pathways ◽  
Current Status ◽  
Domains Of Life ◽  
Near Future

CoA is a ubiquitous molecule in all three domains of life and is involved in various metabolic pathways. The enzymes and reactions involved in CoA biosynthesis in eukaryotes and bacteria have been identified. By contrast, the proteins/genes involved in CoA biosynthesis in archaea have not been fully clarified, and much has to be learned before we obtain a general understanding of how this molecule is synthesized. In the present paper, we review the current status of the research on CoA biosynthesis in the archaea, and discuss important questions that should be addressed in the near future.

Current status of different detector technologies in the searches of 0νββ decay

2021 ◽  
pp. 2130008
Author(s):  
S. Karmakar ◽  
M. K. Singh
Keyword(s):  
Current Status ◽  
Advance Technology ◽  
Near Future

In this paper, we focused on the different detector technologies used in the search of [Formula: see text] decay, from beginning till date. We have also explained the advance technology which is planned for near future by various worldwide experimental collaboration in the search of [Formula: see text] decay.

Rapid Methods and Automation: A Survey of Professional Microbiologists

1989 ◽  
Vol 52 (1) ◽  
pp. 65-68 ◽  
Author(s):  
DANIEL Y. C. FUNG ◽  
NELSON A. COX ◽  
MILLICENT C. GOLDSCHMIDT ◽  
J. STANLEY BAILEY
Keyword(s):  
Future Development ◽  
Pathogen Detection ◽  
International Workshop ◽  
Current Status ◽  
Rapid Methods ◽  
Diagnostic Kits ◽  
Plate Counts ◽  
Near Future

Participants of an international workshop on rapid methods and automation were surveyed concerning the numbers of total plate counts and coliform counts performed per year, the numbers and kinds of pathogen detection tests routinely performed, and the type of instruments and diagnostic kits routinely used in their laboratories. The candid opinions on what is needed in the near future and the general perceptions of the field of rapid methods and automation in microbiology and their wish list were also solicited. Responses from 55 professional practicing microbiologists were analyzed. The data should be of interest to educators and the developers of instruments and diagnostic kits as well as applied microbiologists concerned with the current status and future development of the field of rapid methods and automation in microbiology

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