A simplified heterogeneous Β1 model with isotropically-reflected neutrons on assembly boundary
Апстракт
This model is based on the heterogeneous B1 theory and accounts for heterogeneous effects on the neutron streaming To the price of some approximations, it yields an iterative scheme to simultaneously compute the multi-group scalar fluxes and the directional currents in a heterogeneous geometry Although a similar simplified model called TIBERE, has already been proposed for specularly-reflected neutrons on the assembly (or cell) boundary there was a need to develop this new model, called TIBERE-2, for isotropically-reflected neutrons on the boundary This new model requires the classical and directional escape and transmission probabilities in addition to the classical and directional first flight collision probabilities calculated for an open assembly Consequently, considering the specific geometry of the CANDU reactor lattice, calculations with the TIBERE-2 model are as appropriate but less time consuming than those with the TIBERE model Moreover, this new model circumvents the diverge...nce, leading to infinite leakage coefficients, appearing in the TIBERE model in the case when a PWR assembly is completely voided The TIBERE-2 model has been introduced, for 2D geometry, in the multigroup transport code DRAGON, in order to evaluate space-dependent leakage coefficients
Извор:
Proceedings of the international conference on mathematics and computations, reactor physics, and environmental analyses. Vol. 1 and 2, 1995, 792-801Издавач:
- American Nuclear Society
Напомена:
- International conference on mathematics and computations, reactor physics, and environmental analyses; Portland, OR (United States); 30 Apr - 4 May 1995; American Nuclear Society, Inc., 555 N. Kensington Ave., La Grange Park, IL 60525 (United States)
URI
http://inis.iaea.org/search/search.aspx?orig_q=RN:28045651https://vinar.vin.bg.ac.rs/handle/123456789/8549
Колекције
Институција/група
VinčaTY - CONF AU - Petrović, Ivan M. AU - Marleau, Guy AU - Benoist, Pierre PY - 1995 UR - http://inis.iaea.org/search/search.aspx?orig_q=RN:28045651 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8549 AB - This model is based on the heterogeneous B1 theory and accounts for heterogeneous effects on the neutron streaming To the price of some approximations, it yields an iterative scheme to simultaneously compute the multi-group scalar fluxes and the directional currents in a heterogeneous geometry Although a similar simplified model called TIBERE, has already been proposed for specularly-reflected neutrons on the assembly (or cell) boundary there was a need to develop this new model, called TIBERE-2, for isotropically-reflected neutrons on the boundary This new model requires the classical and directional escape and transmission probabilities in addition to the classical and directional first flight collision probabilities calculated for an open assembly Consequently, considering the specific geometry of the CANDU reactor lattice, calculations with the TIBERE-2 model are as appropriate but less time consuming than those with the TIBERE model Moreover, this new model circumvents the divergence, leading to infinite leakage coefficients, appearing in the TIBERE model in the case when a PWR assembly is completely voided The TIBERE-2 model has been introduced, for 2D geometry, in the multigroup transport code DRAGON, in order to evaluate space-dependent leakage coefficients PB - American Nuclear Society C3 - Proceedings of the international conference on mathematics and computations, reactor physics, and environmental analyses. Vol. 1 and 2 T1 - A simplified heterogeneous Β1 model with isotropically-reflected neutrons on assembly boundary SP - 792 EP - 801 UR - https://hdl.handle.net/21.15107/rcub_vinar_8549 ER -
@conference{ author = "Petrović, Ivan M. and Marleau, Guy and Benoist, Pierre", year = "1995", abstract = "This model is based on the heterogeneous B1 theory and accounts for heterogeneous effects on the neutron streaming To the price of some approximations, it yields an iterative scheme to simultaneously compute the multi-group scalar fluxes and the directional currents in a heterogeneous geometry Although a similar simplified model called TIBERE, has already been proposed for specularly-reflected neutrons on the assembly (or cell) boundary there was a need to develop this new model, called TIBERE-2, for isotropically-reflected neutrons on the boundary This new model requires the classical and directional escape and transmission probabilities in addition to the classical and directional first flight collision probabilities calculated for an open assembly Consequently, considering the specific geometry of the CANDU reactor lattice, calculations with the TIBERE-2 model are as appropriate but less time consuming than those with the TIBERE model Moreover, this new model circumvents the divergence, leading to infinite leakage coefficients, appearing in the TIBERE model in the case when a PWR assembly is completely voided The TIBERE-2 model has been introduced, for 2D geometry, in the multigroup transport code DRAGON, in order to evaluate space-dependent leakage coefficients", publisher = "American Nuclear Society", journal = "Proceedings of the international conference on mathematics and computations, reactor physics, and environmental analyses. Vol. 1 and 2", title = "A simplified heterogeneous Β1 model with isotropically-reflected neutrons on assembly boundary", pages = "792-801", url = "https://hdl.handle.net/21.15107/rcub_vinar_8549" }
Petrović, I. M., Marleau, G.,& Benoist, P.. (1995). A simplified heterogeneous Β1 model with isotropically-reflected neutrons on assembly boundary. in Proceedings of the international conference on mathematics and computations, reactor physics, and environmental analyses. Vol. 1 and 2 American Nuclear Society., 792-801. https://hdl.handle.net/21.15107/rcub_vinar_8549
Petrović IM, Marleau G, Benoist P. A simplified heterogeneous Β1 model with isotropically-reflected neutrons on assembly boundary. in Proceedings of the international conference on mathematics and computations, reactor physics, and environmental analyses. Vol. 1 and 2. 1995;:792-801. https://hdl.handle.net/21.15107/rcub_vinar_8549 .
Petrović, Ivan M., Marleau, Guy, Benoist, Pierre, "A simplified heterogeneous Β1 model with isotropically-reflected neutrons on assembly boundary" in Proceedings of the international conference on mathematics and computations, reactor physics, and environmental analyses. Vol. 1 and 2 (1995):792-801, https://hdl.handle.net/21.15107/rcub_vinar_8549 .