 | About ARIS The Design Descriptions available in ARIS are compiled by IAEA’s Nuclear Power Technology Development Section based on information provided by the developers of each reactor design/concept. After being received from the developers, each Design Description is reviewed and edited by the IAEA, with the objective of achieving a clear and balanced technical description of the design without overly commercial promotional statements. Following concurrence of the developer with the editing suggestions, and clarification of any technical questions, the Design Description is loaded onto ARIS, so that ARIS can be used as an unbiased source of technical information about the various advanced nuclear power plant designs.
Although the amount of detail in the nuclear plant Design Descriptions may vary depending on the level of development of the various concepts, ARIS includes reports on nuclear steam supply system, safety concept, plant performance objectives, proliferation resistance features, spent fuel and waste management approaches, as well as a detailed list of summary technical data for each design. The information is continuously updated based on information provided by the developers as significant changes on a each design take place. For advanced reactor designs, ARIS describes the Design Status of the various designs/concepts based on the definitions in IAEA-TECDOC-936 "Terms for Describing New, Advanced Nuclear Power Plants," as: - Concept Description: When the basic idea and design goals are described; A few calculations/sketches/data are provided; Development and test needs have been identified; and rough estimates of costs and schedules are available.
- Conceptual Design: When the key components and layout drawings as well as single line diagrams are available; Brief descriptions of key components and systems are provided; Identification and preliminary analysis of concept relevant incidents and accidents have been performed.
- Basic Design: When the system descriptions for all plant systems are provided; Safety analyses needed for a design approval have been completed; Licensing documents for certification is available; Procurement specifications and documentation for major components, systems, and structures have been developed; Itemized cost estimate and master schedule for the construction phase have been prepared.
- Detailed Design: When a largely completed design and a complete construction schedule are available; Manufacturing, procurement specifications are completed; Commissioning specifications are completed.
- Site-Specific Design and Engineering: When the adjustments to adapt the design to site conditions are completed; Local cooling arrangements are finalized; Final safety analysis is completed.
- Under Construction
- In Operation: A link to the IAEA sister database PRIS (Power Reactors Information System) that keeps track of the performance of all operating reactors will be provided in this case.
 For some innovative reactor designs, especially those that are normally a “one of kind” designs and where most times a prototype or a demonstration plant are required, ARIS describes the Design Status based on the definitions in IAEA-TECDOC-1531 “Fast Reactor Database: 2006 Update” and IAEA-TECDOC-1083 “Status of Liquid Metal Cooled Fast Reactor Technology” as:
- Experimental Reactor: Typically of up to 100 MW(th) and built to demonstrate the technology, but often including a steam plant and turbine-generators to allow operation as a small power station.
- Prototype Reactor: in which much of the scaling up required for a commercial station in terms of both overall size and individual components has been incorporated.
- Demonstration Commercial Size: to demonstrate the system's capability to operate in a utility environment.
With regards to historical Fast Reactors that have been developed, built and operated during the last 50 years, ARIS will directly link to the Fast Reactor Database that characterizes every fast reactor design by about 500 parameters: physics, thermal hydraulics, thermo-mechanics, by design and technical data, and by relevant sketches.
The ARIS Team- Software Developer: Marianne Mandl
- IAEA Scientific Officers: Sama Bilbao y León, Jong Ho Choi, Seong Deuk Jo, Vladimir Kuznetsov, Alexander Stanculescu, Hadid Subki, Bismark Tyobeka
- Reviewers: John Cleveland, Bharat Shiralkar
- Interns: Mohammad Hashemi, Sahak Margossian, Yoshiki Kimura, Aditi Verma
- Technical Support: Maxim Gladyshev, Mani Yadav
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