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      Thermal hydraulics of the fixed bed nuclear reactor concept Translated title: Thermohydraulik des Festbettreaktorkonzepts

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      1
      Kerntechnik
      Carl Hanser Verlag

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          Abstract

          The thermo-hydraulics of the fixed bed nuclear reactor (FBNR), possessing spherical HTGR type fuel, is described. Its main characteristic is the variable fixed bed core in suspense and its “cold” fuel in case of a LOCA (< 400°C). A 40 MW el reactor has a pressure loss across the fixed bed of 9.5 bar and needs a pump power of 3.4 MW el – more than in a classical PWR but being the price for its excellent inherent safety characteristics.

          Kurzfassung

          Die Thermohydraulik des Festbettreaktors (FBNR) mit sphärischem HTGR-Brennstoff wird behandelt. Sein Hauptmerkmal ist das Schwebebett-Core im Betrieb und dessen Desintegration im Notkühlfall, wobei der Brennstoff „kalt“ bleibt (<400°C). Ein 40 MW el Reaktor hat einen Druckabfall über das Bett von 9.5 bar und benötigt eine totale Pumpleistung von 3,4 MW el – mehr als in einem DWR, was der Preis für seine exzellente inhärente Sicherheit ist.

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          Convective boiling and condensation

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            Author and article information

            Journal
            kt
            Kerntechnik
            Carl Hanser Verlag
            0932-3902
            2195-8580
            2006
            : 71
            : 3
            : 144-148
            Affiliations
            1 Nuclear Engineering Department, Federal University of Rio Grande do Sul, Porto Alegre. Brazilfarhang@ 123456ufrgs.br
            Article
            KT100287
            10.3139/124.100287
            8aa47a37-9132-4a24-a2fa-ec31077d7cb8
            © 2006, Carl Hanser Verlag, München
            History
            : 14 September 2005
            Page count
            References: 9, Pages: 5
            Categories
            Technical Contributions/Fachbeiträge

            Materials technology,Materials for energy,Nuclear physics
            Materials technology, Materials for energy, Nuclear physics

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