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August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
Charles R. Marotta
Nuclear Technology | Volume 42 | Number 3 | March 1979 | Pages 350-352
Technical Note | Reactor | doi.org/10.13182/NT79-A32192
Articles are hosted by Taylor and Francis Online.
A simple and accurate calculation method is presented for the variation of bubble worth in a molten core. The method depends on previous analysis of the author on reactivity increase due to compaction of unmoderated fissile systems. The average density of the fuel material after it has expanded into the bubble region is the controlling parameter of the proposed method. Comparison with detailed bubble worth calculations due to Nicholson and Goldsmith shows excellent agreement. Given a “quality” base worth case, the bubble worth variation for the perturbed system (of fuel, either moving into or out of the bubble volume) can be accurately calculated in terms of the base worth value. The proposed method can be used to evaluate the physical reasonableness of complex calculations using transport theory or Monte Carlo for estimates of bubble worth.