Passive reactivity control technologies that enable reactivity control of a nuclear thermal propulsion (NTP) system with little to no active mechanical movement of circumferential control drums. By minimizing or eliminating the need for mechanical movement of the circumferential control drums during an NTP burn, the reactivity control technologies simplify controlling an NTP reactor and increase the overall performance of the NTP system. The reactivity control technologies mitigate and counteract the effects of xenon, the dominant fission product contributing to reactivity transients. Examples of reactivity control technologies include, employing burnable neutron poisons, tuning hydrogen pressure, adjusting wait time between burn cycles or merging burn cycles, and enhancement of temperature feedback mechanisms. The reactivity control technologies are applicable to low-enriched uranium NTP systems, including graphite composite fueled and tungsten ceramic and metal matrix (CERMET), or any moderated NTP system, such as highly-enriched uranium graphite composite NTP systems.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    PASSIVE REACTIVITY CONTROL OF NUCLEAR THERMAL PROPULSION REACTORS


    Beteiligte:

    Erscheinungsdatum :

    27.08.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G21C NUCLEAR REACTORS , Kernreaktoren / B64G Raumfahrt , COSMONAUTICS / F02K JET-PROPULSION PLANTS , Strahltriebwerke / G21D NUCLEAR POWER PLANT , Kernkraftwerke



    Passive reactivity control of nuclear thermal propulsion reactors

    VENNERI PAOLO FRANCESCO / EADES MICHAEL JOHN | Europäisches Patentamt | 2020

    Freier Zugriff

    PASSIVE REACTIVITY CONTROL OF NUCLEAR THERMAL PROPULSION REACTORS

    VENNERI PAOLO FRANCESCO / EADES MICHAEL JOHN | Europäisches Patentamt | 2017

    Freier Zugriff

    Variable propellant density for passive reactivity control of nuclear thermal propulsion reactors

    VENNERI PAOLO FRANCESCO / EADES MICHAEL JOHN | Europäisches Patentamt | 2022

    Freier Zugriff

    Reactors for nuclear electric propulsion

    BUDEN, D. / ANGELO, JR., J. / BECK, J. | AIAA | 1981


    Reactors for Nuclear Electric Propulsion

    D. Buden / J. A. Angelo | NTIS | 1981