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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.
Chang H. Oh, John C. Chapman
Nuclear Technology | Volume 113 | Number 3 | March 1996 | Pages 327-337
Technical Paper | Heat Transfer and Fluid Flow | doi.org/10.13182/NT96-A35212
Articles are hosted by Taylor and Francis Online.
Flow experiment and analysis were performed to determine flow instability condition in a single thin vertical rectangular flow channel (1.98 mm in channel gap, 50.8mm in width, and 121.92 or 60.96 cm in heated height), which represents one of the Advanced Test Reactor’s inner coolant channels between fuel plates. The maximum surface heat flux and flow rate are 159.8kW/m2 and 462.5 kg/s-m2, respectively, which simulates decay heat removal from the single heated surface of the Advanced Test Reactor. The tests are conducted at atmospheric and subatmospheric pressure, simulating expected conditions during a hypothetical loss-of-coolant accident. The precursor of the flow instability [the point of net void generation and the onset of flow instability (OFI) defined by Saha and Zuber] was compared, and the OFI map (power density versus minimum mass flux at OFI) was developed in this study.
