DC Field | Value | Language |
---|---|---|
dc.contributor.author | Venneri, Paolo | ko |
dc.contributor.author | Eades, Michael | ko |
dc.contributor.author | Kim, Yonghee | ko |
dc.date.accessioned | 2017-04-14T08:15:36Z | - |
dc.date.available | 2017-04-14T08:15:36Z | - |
dc.date.created | 2017-02-14 | - |
dc.date.issued | 2017-01 | - |
dc.identifier.citation | NUCLEAR TECHNOLOGY, v.197, no.1, pp.64 - 74 | - |
dc.identifier.issn | 0029-5450 | - |
dc.identifier.uri | http://hdl.handle.net/10203/223084 | - |
dc.description.abstract | This paper explores the possibility of passively controlling the reactivity of a nuclear thermal propulsion (NTP) reactor. The objective of this study is to limit the use of the radial control drums to start-up and shutdown procedures and ensure that the exact same operation is performed for each full-power burn. To achieve the goal, this work considers several design measures, which include a low-density burnable absorber in the tie-tube components of the core, the use of variable hydrogen density in the moderator element coolant passages, and the judicious selection of a modified mission profile to maximize the decay of 135Xe after operation. In addition, the improved stability from the enhanced fuel temperature feedback due to the implementation of low-enriched-uranium fuel is also exploited for the realization of passive reactivity control. In this work, a passive reactivity control system is implemented in the Superb Use of Low Enriched Uranium (SULEU) NTP core and analyzed in terms of its ability to fulfill a NASA Mars Mission Design Reference Architecture 5.0-style mission. It is concluded that the use of the control drums can be limited to start-up and shutdown operations only, eliminating operator input in order to maintain a constant power level in the core. | - |
dc.language | English | - |
dc.publisher | AMER NUCLEAR SOC | - |
dc.subject | ENRICHED URANIUM FUEL | - |
dc.subject | FEASIBILITY | - |
dc.subject | ROCKETS | - |
dc.title | Passive Reactivity Control of Nuclear Thermal Propulsion Reactors | - |
dc.type | Article | - |
dc.identifier.wosid | 000397232300006 | - |
dc.identifier.scopusid | 2-s2.0-85012237819 | - |
dc.type.rims | ART | - |
dc.citation.volume | 197 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 64 | - |
dc.citation.endingpage | 74 | - |
dc.citation.publicationname | NUCLEAR TECHNOLOGY | - |
dc.identifier.doi | 10.13182/NT16-80 | - |
dc.contributor.localauthor | Kim, Yonghee | - |
dc.contributor.nonIdAuthor | Eades, Michael | - |
dc.type.journalArticle | Article | - |
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