@article{(Open Science Index):https://publications.waset.org/pdf/10006518,
	  title     = {Degradation of Irradiated UO2 Fuel Thermal Conductivity Calculated by FRAPCON Model Due to Porosity Evolution at High Burn-Up},
	  author    = {B. Roostaii and  H. Kazeminejad and  S. Khakshournia},
	  country	= {},
	  institution	= {},
	  abstract     = {The evolution of volume porosity previously obtained by using the existing low temperature high burn-up gaseous swelling model with progressive recrystallization for UO2 fuel is utilized to study the degradation of irradiated UO2 thermal conductivity calculated by the FRAPCON model of thermal conductivity. A porosity correction factor is developed based on the assumption that the fuel morphology is a three-phase type, consisting of the as-fabricated pores and pores due to intergranular bubbles whitin UO2 matrix and solid fission products. The predicted thermal conductivity demonstrates an additional degradation of 27% due to porosity formation at burn-up levels around 120 MWd/kgU which would cause an increase in the fuel temperature accordingly. Results of the calculations are compared with available data.
},
	    journal   = {International Journal of Nuclear and Quantum Engineering},
	  volume    = {11},
	  number    = {3},
	  year      = {2017},
	  pages     = {221 - 224},
	  ee        = {https://publications.waset.org/pdf/10006518},
	  url   	= {https://publications.waset.org/vol/123},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 123, 2017},
	}