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Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Hiroshi Kawai, Ichio Tomiai
Nuclear Technology | Volume 121 | Number 3 | March 1998 | Pages 337-345
Technical Paper | RETRAN | doi.org/10.13182/NT98-A2845
Articles are hosted by Taylor and Francis Online.
If a boiling water reactor core shroud is postulated to completely crack at any of the horizontal welds, an upward load might cause the upper portion of the shroud to lift. Anomalous core characteristics resulting from the flow through the gap could be detected, and the operators would immediately shut down the plant. These anomalies [anomalous core power, total primary loop recirculation (PLR) system flow, core-support-plate P, PLR pump inlet temperature, etc.] are quantified using RETRAN-02/MOD4.A noding method has been introduced to precisely simulate gap leakage flow and its enthalpy. The detectability of shroud separation was confirmed through anomalous core characteristics.