FUEL COMPOSITION OPTIMIZATION IN A 78-ELEMENT FUEL BUNDLE FOR USE IN A PRESSURE TUBE TYPE SUPERCRITICAL WATER-COOLED REACTOR
A 78-element fuel bundle containing a plutonium-thorium fuel mixture has been proposed for aGeneration IV pressure tube type supercritical water-cooled reactor. In this work, using a lattice cellmodel created with the code DRAGON, the lattice pitch, fuel composition (fraction of PuO2 inThO2) and radial enrichment profile of the 78-element bundle is optimized using a merit functionand a metaheuristic search algorithm. The merit function is designed such that the optimal fuelmaximizes fuel utilization while minimizing peak element ratings and coolant void reactivity, andthe sensitivity of the results to merit function assumptions is documented. A radial enrichmentprofile of 10 wt％, 11 wt％ and 20 wt％ PuO2 (inner to outer ring) with a lattice pitch of 25.0 cm wasfound to provide the optimal merit score based on the aforementioned criteria.
D.W.Hummel D.R.Novog
McMaster University,Hamilton,Ontario,Canada
国际会议
3rd China-Canada Joint Workshop on Supercritical Water-Cooled Reactors(第三届中国-加拿大超临界水堆研讨会 (CCSC-2012)
西安
英文
1-12
2012-04-18（万方平台首次上网日期，不代表论文的发表时间）