• Title/Summary/Keyword: Nuclear Software Development

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A Study on Dynamic Test of Safety System Software on Nuclear Power Plant (원자력발전소 안전계통 소프트웨어의 동적시험에 관한 연구)

  • Moon, Chae-Joo;Chang, Young-Hak;Lee, Sun-Sung;Suh, Young
    • Journal of Energy Engineering
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    • v.8 no.2
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    • pp.213-223
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    • 1999
  • In recently, the safety system software of the nuclear power plant has been verified and validated according to ANSI/IEEE-ANS-7-4.3.2-1982 to improve the reliability. This standard requires that safety-related software should be tested in the static and dynamic environments. In case of Inadequate Core Cooling Monitoring System (ICCMS), the static test procedure and related techniques are developed but the dynamic test procedure and related techniques are not developed. Therefore, this paper discusses the undeveloped techniques, and suggests the dynamic test procedure and the program for generation of test input data. The performance of the program was identified using accident analysis report of Ulchin 3&4 Final Safety Analysis Report (FSAR).

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KTM TOKAMAK OPERATION SCENARIOS SOFTWARE INFRASTRUCTURE

  • Pavlov, V.;Baystrukov, K.;Golobokov, Yu.;Ovchinnikov, A.;Mezentsev, A.;Merkulov, S.;Lee, A.;Tazhibayeva, I.;Shapovalov, G.
    • Nuclear Engineering and Technology
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    • v.46 no.5
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    • pp.667-674
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    • 2014
  • One of the largest problems for tokamak devices such as Kazakhstan Tokamak for Material Testing (KTM) is the operation scenarios' development and execution. Operation scenarios may be varied often, so a convenient hardware and software solution is required for scenario management and execution. Dozens of diagnostic and control subsystems with numerous configuration settings may be used in an experiment, so it is required to automate the subsystem configuration process to coordinate changes of the related settings and to prevent errors. Most of the diagnostic and control subsystems software at KTM was unified using an extra software layer, describing the hardware abstraction interface. The experiment sequence was described using a command language. The whole infrastructure was brought together by a universal communication protocol supporting various media, including Ethernet and serial links. The operation sequence execution infrastructure was used at KTM to carry out plasma experiments.

DEVELOPMENT OF BEST PRACTICE GUIDELINES FOR CFD IN NUCLEAR REACTOR SAFETY

  • Mahaffy, John
    • Nuclear Engineering and Technology
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    • v.42 no.4
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    • pp.377-381
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    • 2010
  • In 2007 the Nuclear Energy Agency's Committee on the Safety of Nuclear Installations published Best Practice Guidelines for the use of CFD in Nuclear Reactor Safety. This paper provides an overview of the document' contents and highlights a few of its recommendations. The document covers the full extent of a CFD analysis from initial problem definition and selection of an appropriate tool for the analysis, through final documentation of results. It provides advice on selection of appropriate simulation software, mesh construction, and selection of physical models. In addition it contains extensive discussion of the verification and validation process that should accompany any high-quality CFD analysis.

Measurement of Weld Material Properties of Alloy 617 Using an Instrumented Indentation Technique (계장화 압입시험법에 의한 Alloy 617 용접 물성치 측정)

  • Song, Kee-Nam;Hong, Sung-Deok;Ro, Dong-Seong;Lee, Joo-Ha;Hong, Jung-Hwa
    • Journal of Welding and Joining
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    • v.31 no.5
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    • pp.41-46
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    • 2013
  • Different microstructures in the weld zone of a metal structure such as a fusion zone or heat affected zone are formed as compared to the parent material. Thus, the mechanical properties in the weld zone are different from those in the parent material. As the basic data for reliably understanding the structural characteristics of a welded PCHE specimen to be made of Alloy 617, the mechanical properties in the weld zone and parent material for a Alloy 617 plate are measured using an instrumented indentation technique in this study.

PACS in Nuclear Medicine (핵의학 PACS)

  • Kang, Keon-Wook
    • The Korean Journal of Nuclear Medicine
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    • v.34 no.6
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    • pp.439-444
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    • 2000
  • PACS (Picture Archiving and Communication System) is being rapidly spread and installed in many hospitals, but most of the system do not include nuclear medicine field. Although additional costs of hardware for nuclear medicine PACS is low, the complexity in developing viewing software and little market have made the nuclear medicine PACS not popular. Most PACS utilize DICOM 3.0 as standard format, but standard format in nuclear medicine has been Interfile. Interfile should be converted into DICOM format if nuclear images are to be stored and visualized in most PACS. Nowadays, many vendors supply the DICOM option in gamma camera and PET. Several hospitals in Korea have already installed nuclear PACS with DICOM, but only the screen captured images are supplied. Software for visualizing pseudo-color with color lookup tables and expressing with volume view should be developed to fulfill the demand of referring physicians and nuclear medicine physicians. PACS is going to integrate not only radiologic images but also endoscopic and pathologic images. Web and PC based PACS is now a trend and is much compatible with nuclear medicine PACS. Most important barrier for nuclear medicine PACS that we encounter is not a technical problem, but indifference of investor such as administrator of hospital or PACS. Now it is time to support and invest for the development of nuclear medicine PACS.

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