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Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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Orlando, FL|Renaissance Orlando at SeaWorld
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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
Jungchung Jung, Nobuo Ohtani, Keisuke Kobayashi, Hiroshi Nishihara
Nuclear Science and Engineering | Volume 53 | Number 4 | April 1974 | Pages 355-369
Technical Paper | doi.org/10.13182/NSE74-A23369
Articles are hosted by Taylor and Francis Online.
Discrete-ordinate neutron transport equations in x-y geometry, which are equivalent to the PL approximation, are developed for eliminating the ray effect in the usual discrete ordinate or SN method. The standard diamond difference schemes for the discrete ordinate equations developed here are studied for vacuum and periodic boundary conditions. It is shown that the difference schemes, with an exception, lead to nonsingular systems of algebraic equations. The exception, which yields singular systems of difference equations, is the case where the following condition is satisfied: “In at least one of the x and y directions, the boundary conditions are periodic, and the number of mesh intervals is even.” It is also shown that the solutions yielded by these schemes with periodic boundary conditions converge in the L2 norm to the solutions of the PL equations.