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The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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IAEA’s Grossi talks with insurance companies’ executives
International Atomic Energy Agency director general Rafael Mariano Grossi was in Switzerland last week to talk with insurance executives at the Nuclear Pools’ Forum about the potential of nuclear power.
Arndt B. Lindner, Dieter H. Wach
Nuclear Technology | Volume 143 | Number 2 | August 2003 | Pages 197-207
Technical Paper | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies | doi.org/10.13182/NT03-A3409
Articles are hosted by Taylor and Francis Online.
Operational benefits and enlarged functionality of modern technology, but also the physical and the technological aging of conventional instrumentation and control (I&C) systems, are motivations for modernization of I&C systems in nuclear power plants (NPPs). In case of safety-relevant I&C systems, the licensing authorities require the demonstration of sufficient safety of the systems.In several countries ongoing research and development projects are directed to provide a scientific basis and engineering solutions for cost-effective assessment of software-based I&C systems important to safety in NPPs. International initiatives have been started to develop a harmonized safety assessment methodology. The Institute for Safety Technology (ISTec) has been engaged in national and international programs as well as in establishing a two-phase qualification approach, which comprises a generic plant-independent qualification of hardware and software components and a plant-specific system qualification phase.In both generic qualification and plant-specific system qualification, ISTec has been involved as an independent third-party assessor for the relevant state authority. This paper reports experiences from the ISTec involvement in the assessment projects, e.g., in the assessment of the I&C important to safety in the new German High-Flux Research Reactor (FRM-2) in Munich and in the assessments of I&C modernization in NPPs of foreign countries (Bohunice, Slovak Republic; Paks, Hungary; and others). Conclusions are drawn from the experiences with respect to the practicability of the two-phase qualification concept and from the major findings in the plant-specific I&C assessments.