Investigation of a SPH-based sub-cell homogenization for PHWR using a multi-cell model
dc.contributor.advisor | Nichita, Eleodor | |
dc.contributor.author | Ferguson, Thomas | |
dc.date.accessioned | 2018-07-25T19:56:48Z | |
dc.date.accessioned | 2022-03-29T16:49:00Z | |
dc.date.available | 2018-07-25T19:56:48Z | |
dc.date.available | 2022-03-29T16:49:00Z | |
dc.date.issued | 2018-06-01 | |
dc.degree.discipline | Nuclear Engineering | |
dc.degree.level | Master of Applied Science (MASc) | |
dc.description.abstract | Superhomogenization (SPH) has gained interest in the industry as a possible method to overcome the inherent limitations of standard homogenization (SH) for full nuclearreactor-core neutronics calculations because its implementation does not require any changes to existing computer codes. Previous work found that single-cell SPH applied to Pressurized Heavy Water Reactors (PHWR) yields virtually no improvement compared to single-cell standard homogenization. This work attempts to improve those results by accounting for neutron leakage across cell boundaries by performing SPH-based homogenization using a 3×3 multi-cell model. The method is evaluated using a 5×5 lattice-cell model and comparing results for single-cell SH, multi-cell SH, single-cell SPH and multi-cell SPH. Results show that multi-cell SPH produces better results than single-cell SPH and multi-cell SH produces better results than single-cell SH. However, multi-cell SPH offers no improvement compared to multi-cell SH, just as single-cell SPH offers no improvement over single-cell SH. | en |
dc.description.sponsorship | University of Ontario Institute of Technology | en |
dc.identifier.uri | https://hdl.handle.net/10155/940 | |
dc.language.iso | en | en |
dc.subject | Applied reactor physics | en |
dc.subject | Superhomogenization | en |
dc.subject | SPH factors | en |
dc.subject | PHWR | en |
dc.title | Investigation of a SPH-based sub-cell homogenization for PHWR using a multi-cell model | en |
dc.type | Thesis | en |
thesis.degree.discipline | Nuclear Engineering | |
thesis.degree.grantor | University of Ontario Institute of Technology | |
thesis.degree.name | Master of Applied Science (MASc) |