Persistent Link:
http://hdl.handle.net/10150/277150
Title:
Nuclear excursions in aqueous solutions of fissile materials
Author:
Smith, Adrienne Bobbette, 1960-
Issue Date:
1989
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Fissile materials in the form of aqueous homogeneous solutions are used during the chemical processing of nuclear materials. In this form there exists the possibility of an accidental criticality. A one-dimensional multi-region model was developed for simulating fast power excursions in a cylinderical homogeneous aqueous fissile solution. The model includes a novel method for computing reactivity feedback that accounts for the axial distribution of power and solution density. The feedback method is based on the change in neutron leakage due to a change in solution density. The model also includes an equation of state derived from quasi-static thermodynamic theory for a solution containing gas bubbles. The model was compared to the KEWB-5 (Kinetic Experiments on Water Boilers) series of experiments. The model could approximate the values of peak power and pressure found in the experiments, but the pressure curves did not match the shapes of the experimental pressure traces.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Nuclear fuels.; Nuclear reactor accidents
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Nuclear and Energy Engineering
Degree Grantor:
University of Arizona
Advisor:
Hetrick, D. L.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleNuclear excursions in aqueous solutions of fissile materialsen_US
dc.creatorSmith, Adrienne Bobbette, 1960-en_US
dc.contributor.authorSmith, Adrienne Bobbette, 1960-en_US
dc.date.issued1989en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractFissile materials in the form of aqueous homogeneous solutions are used during the chemical processing of nuclear materials. In this form there exists the possibility of an accidental criticality. A one-dimensional multi-region model was developed for simulating fast power excursions in a cylinderical homogeneous aqueous fissile solution. The model includes a novel method for computing reactivity feedback that accounts for the axial distribution of power and solution density. The feedback method is based on the change in neutron leakage due to a change in solution density. The model also includes an equation of state derived from quasi-static thermodynamic theory for a solution containing gas bubbles. The model was compared to the KEWB-5 (Kinetic Experiments on Water Boilers) series of experiments. The model could approximate the values of peak power and pressure found in the experiments, but the pressure curves did not match the shapes of the experimental pressure traces.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectNuclear fuels.en_US
dc.subjectNuclear reactor accidentsen_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineNuclear and Energy Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorHetrick, D. L.en_US
dc.identifier.proquest1338849en_US
dc.identifier.oclc23167941en_US
dc.identifier.bibrecord.b17584358en_US
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