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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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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Robert Martin
Nuclear Science and Engineering | Volume 48 | Number 2 | June 1972 | Pages 125-138
Technical Paper | doi.org/10.13182/NSE72-A22466
Articles are hosted by Taylor and Francis Online.
This article presents the results of an experimental study of the void fraction at high pressure (80 to 140 kg/cm2) in two rectangular channels (5 × 0.2 and 5 × 0.28 cm) simulating a subchannel of a nuclear reactor plate-type fuel element. The method enabled the distribution of the local void fraction in a cross section to be measured at about 100 locations; from these local values it was possible to determine accurate mean values and to precisely quantitate the influence of the parameters: pressure, mass velocity, and heat flux. This distributions of void fractions, among the first to be determined in this range of pressures, were obtained from 120 000 systematic, individual measurements, sufficient to allow accurate interpolations in the experimental region under consideration which included subcooled conditions. These results enabled testing certain models presented in the literature. Analyses with the Bowring model, for example, are in good agreement with present experimental data at 80 kg/cm2. The purpose of this study was not to establish a new model but to furnish accurate data for verification or, if necessary, adjustment of existing models.