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DOE OKs $1.5B loan for “restoration and maintenance” at Palisades
The Department of Energy has signed off on a $1.5 billion loan guarantee to Holtec Palisades LLC to support initial work needed to restart the Michigan nuclear plant.
Hiroshi Motoda, Tamotsu Hayase, Yasunori Bessho, Kanji Kato
Nuclear Science and Engineering | Volume 80 | Number 4 | April 1982 | Pages 648-666
Technical Paper | doi.org/10.13182/NSE82-A18975
Articles are hosted by Taylor and Francis Online.
A coarse mesh nodal coupling method, a well-known technique often used in steady-state neutronics analysis of light water reactors, is extended to a problem of transient phenomena of boiling water reactors (BWRs). Spatial collapse is attempted to develop a multiregion neutronics model and the associated axially one-dimensional and one-point models. These models are numerically solved through the use of two approximations, quasi-static and prompt jump. The results as applied to a reference BWR core for transient analyses, initiated by artificial thermal-hydraulic disturbances, are presented to show the practicality of the approach. The nature of the optimal weighting function necessary for the spatial collapse and for the quasi-static approximation is also discussed.