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1. Gibson, Hubert C. Gaseous swelling and release in nuclear fuels during grain growth.

Degree: MS, Mechanical Engineering, 2013, Georgia Tech

A model of the generation and release of fission gas, as well as the total swelling over time, was created. It uses an ideal spherical fuel grain with a time-dependent radius. UO2 and quasi-homogeneous SBR MOX fuels were simulated with this model, and the results were compared to a fixed grain radius model of gaseous swelling. Gaseous swelling and fission gas release were calculated for temperatures from 1600 K to 2200 K. The grain growth of UO2 was found to decrease the time needed to saturate the intergranular boundaries as compared to simple diffusion without grain growth. Small temperatures increased the time required for saturation, as did small rates of grain growth. Gaseous swelling was within the range of values found by experimental data. Advisors/Committee Members: Deo, Chaitanya (advisor), Petrovic, Bojan (committee member), Sjoden, Glenn E (committee member).

Subjects/Keywords: Nuclear fuel; Gaseous swelling; Gas release; Fission gases; Nuclear fuels; Gases, Rare

…quasi-homogeneous MOX fuels were simulated with this model. Gaseous swelling and fission gas… …saturation, as did small rates of grain growth. Gaseous swelling was within the range of values… …However, the increased fuel grain size 3 decreases the gaseous swelling, due to the reduced… …work on gaseous swelling, and extends the model from UO2 to other fuels. Chapter 2 explains… …densities lead to the gaseous swelling. Chapter 3 explains the approximations used to solve the… 

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Gibson, H. C. (2013). Gaseous swelling and release in nuclear fuels during grain growth. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/49103

Chicago Manual of Style (16th Edition):

Gibson, Hubert C. “Gaseous swelling and release in nuclear fuels during grain growth.” 2013. Masters Thesis, Georgia Tech. Accessed April 25, 2019. http://hdl.handle.net/1853/49103.

MLA Handbook (7th Edition):

Gibson, Hubert C. “Gaseous swelling and release in nuclear fuels during grain growth.” 2013. Web. 25 Apr 2019.

Vancouver:

Gibson HC. Gaseous swelling and release in nuclear fuels during grain growth. [Internet] [Masters thesis]. Georgia Tech; 2013. [cited 2019 Apr 25]. Available from: http://hdl.handle.net/1853/49103.

Council of Science Editors:

Gibson HC. Gaseous swelling and release in nuclear fuels during grain growth. [Masters Thesis]. Georgia Tech; 2013. Available from: http://hdl.handle.net/1853/49103

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