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Nuclear Technology Volume 208, 2022 - Issue 2
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Technical Papers

PHWR Reactivity Device Incremental Macroscopic Cross Sections and Reactivities for a Molybdenum-Producing Bundle and a Standard Bundle

J. HaroonOntario Tech University, Faculty of Energy Systems and Nuclear Science, 2000 Simcoe Str. North, Oshawa, OntarioL1G 0C5, CanadaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-8614-4704
ORCID Icon &
E. NichitaOntario Tech University, Faculty of Energy Systems and Nuclear Science, 2000 Simcoe Str. North, Oshawa, OntarioL1G 0C5, Canada
Pages 246-267 | Received 01 Feb 2021, Accepted 07 May 2021, Published online: 25 Aug 2021

Figures & data

Fig. 1. Reactivity devices located between PHWR fuel channels.

Fig. 1. Reactivity devices located between PHWR fuel channels.

Fig. 2. A schematic of the 37-element Molybdenum-99 producing bundle.Citation3

Fig. 2. A schematic of the 37-element Molybdenum-99 producing bundle.Citation3

TABLE I AA and SA Design SpecificationsCitation7

TABLE II AA and SA Material CompositionsCitation7

Fig. 3. Cross sectional view of PHWR shutoff absorber and adjuster absorber rods.

Fig. 3. Cross sectional view of PHWR shutoff absorber and adjuster absorber rods.

Fig. 4. Cross sectional view of PHWR liquid zone controller compartment.

Fig. 4. Cross sectional view of PHWR liquid zone controller compartment.

Fig. 5. A 3D PHWR supercell configuration with two fuel lattices and a reactivity device in the axial center.

Fig. 5. A 3D PHWR supercell configuration with two fuel lattices and a reactivity device in the axial center.

Fig. 6. PHWRD 3D supercell face view and homogenized inner region.

Fig. 6. PHWRD 3D supercell face view and homogenized inner region.

Fig. 7. 37-Element explicit (left) and annularized (right) models.

Fig. 7. 37-Element explicit (left) and annularized (right) models.

TABLE III Set of Incremental Cross Sections

TABLE IV Adjuster Absorbers Homogenized Incremental Cross Sections at Zero Burnup

TABLE V Shutoff Absorbers Homogenized Incremental Cross Sections at Zero Burnup

TABLE VI Liquid Zone Controllers Homogenized Incremental Cross Sections at Zero Burnup

TABLE VII Guide Tubes Homogenized Incremental Cross Sections at Zero Burnup

TABLE VIII Adjuster Absorbers Homogenized Incremental Cross Sections at 20-day Burnup

TABLE IX Shutoff Absorbers Homogenized Incremental Cross Sections at 20-day Burnup

TABLE X Liquid Zone Controllers Homogenized Incremental Cross Sections at 20-day Burnup

TABLE XI Guide Tubes Homogenized Incremental Cross Sections at 20-day Burnup

TABLE XII Annularized Fuel Adjuster Absorbers Homogenized Incremental Cross Sections at Zero Burnup

TABLE XIII Annularized Fuel Shutoff Absorbers Homogenized Incremental Cross Sections at Zero Burnup

TABLE XIV Annularized Fuel Liquid Zone Controllers Homogenized Incremental Cross Sections at Zero Burnup

TABLE XV Cluster versus Annular Fuel Homogenized Incremental Cross Sections for Adjuster Rods at Zero Burnup

TABLE XVI Cluster versus Annular Fuel Homogenized Incremental Cross Sections for Shutoff Absorbers at Zero Burnup

TABLE XVII Cluster versus Annular Fuel Homogenized Incremental Cross Sections for Liquid Zone Controllers at Zero Burnup

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