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Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
Digital control system installed at China’s Linglong One
Earlier this month, the first digital control system was put in place at Linglong One, a small modular reactor demonstration project being built at the Changjiang nuclear power plant in Hainan Province. This is the world’s first land-based commercial SMR and is controlled by China National Nuclear Power Co. Ltd., a subsidiary of the China National Nuclear Corporation (CNNC).
Yoon Sub Sim
Nuclear Technology | Volume 161 | Number 3 | March 2008 | Pages 299-314
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT08-A3928
Articles are hosted by Taylor and Francis Online.
Decay heat removal in a nuclear plant is very important, and the performance of a decay heat removal system in a plant is a critical factor for the plant safety. In designing the decay heat removal system, a passive-type system is usually more difficult than an active-type system, and there can be additional restrictions in designing plant systems for passive decay heat removal to secure a sufficient natural-circulation head. If one can devise a decay heat exchanger that can enhance buildup of the natural-circulation head during an accident, the restrictions on designing the systems related to the decay heat removal can be relaxed and a better plant design can be attained. To meet this necessity, a design concept of an improved decay heat removal heat exchanger, IDINHX, was devised for a pool-type liquid-metal reactor (LMR). Its performance was evaluated, and the physics related to the core cooling in a pool-type LMR was investigated. During an accident, the core exit temperature usually peaks twice. The first peaking reflects the early-phase cooling capacity of a system, and the second peaking reflects the late-phase or long-term cooling capacity. The physics of the first peaking are more complex than that of the second peaking and, consequently, designing against the first peaking is more difficult. Based on the investigation results, ways to control the first peaking are suggested.