Nuclear reactor incorporating means for preventing molten fuel from breaching the containment vessel thereof in the event of a core melt-down

Title: Nuclear reactor incorporating means for preventing molten fuel from breaching the containment vessel thereof in the event of a core melt-down

Full Record
Other Related Research

Inventors:: Jansen, G. Jr.

Issue Date:: 1972-11-14

Research Org.:: Originating Research Org. not identified

OSTI Identifier:: 4481658

Patent Number(s):: 3702802

Assignee:: to United States Atomic Energy Commission TIC; NSA-28-004597

NSA Number:: NSA-28-004597

Resource Type:: Patent

Resource Relation:: Patent File Date: 1971 Jun 16; Other Information: G21c9/00. Orig. Receipt Date: 31-DEC-73

Country of Publication:: United States

Language:: English

Subject:: N77900* -Reactors-Reactor Safety & Environmental Aspects; *FBR TYPE REACTORS- MELTDOWN; *MELTDOWN- THERMAL INSULATION; *SODIUM COOLED REACTORS- MELTDOWN; BASALT; CONTAINMENT; PATENTS; REACTOR CORES

Citation Formats


                    Jansen, G. Jr. Nuclear reactor incorporating means for preventing molten fuel from breaching the containment vessel thereof in the event of a core melt-down.  United States: N. p., 1972. 
        Web.

Copy to clipboard


                    Jansen, G. Jr. Nuclear reactor incorporating means for preventing molten fuel from breaching the containment vessel thereof in the event of a core melt-down.  United States.

Copy to clipboard


                    Jansen, G. Jr. Tue .  
        "Nuclear reactor incorporating means for preventing molten fuel from breaching the containment vessel thereof in the event of a core melt-down".  United States.

Copy to clipboard


                    
@article{osti_4481658,

  title        = {Nuclear reactor incorporating means for preventing molten fuel from breaching the containment vessel thereof in the event of a core melt-down},

  author       = {Jansen, G. Jr.},

  abstractNote = {},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1972},

  month        = {11}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Patents and OSTI.GOV collections:

NUCLEAR REACTOR CORE HAVING MEANS FOR VARYING INCLINATION OF FUEL ASSEMBLIES

Patent Astley, E.R.; Finch, L.M.
Method and arrangement for reducing the radiation exposure risks in the course of a nuclear reactor core melt down accident

Patent Donne, M.D.; Dorner, S.; Schumacher, G.

A method and arrangement are described for containing the core melt flowing from a nuclear reactor into a core catcher below the core wherein the core melt is permitted to gradually penetrate layers of a core catcher materials of inorganic reactor soluble oxides or salts disposed in the core catcher which core catcher materials are dissolved by the oxidic part of the core melt. The molten solution, after solidification and after being cooled down to a temperature at which hydrogen generating reactions do not take place, is leached with water and rinsed out of the core catcher without the needmore »« less
MEANS FOR PREVENTING THE BLOWING OUT OF FUEL ELEMENTS DURING THE REFUELLING OPERATION OF A NUCLEAR REACTOR COOLED BY PRESSURIZED GAS

Patent

In nuclear reactors where the pressurized gaseous coolant flows upward through the reactor channel, the pressure drop in the channel during refueling is sufficient to blow out some of the elements when the top ones are removed. In order to prevent this occurrence, the maximum gas flow is artificially restricted by an annular chamber positioned around the charging chute during the refueling operation. This chamber communicates via lateral openings in the wall of the charging chute with the inside of the charging chute, so that a gas flow from the reactor channel passes through the chamber. Gas leaves the chambermore »« less
Nuclear reactor fuel and fuel element and preparation thereof.

Patent Tetenbaum, M.; Hunt, P.D.
Nuclear reactor fuel assembly with improved top nozzle and hold-down means

Patent Gjertsen, R. K.

A nuclear reactor fuel assembly having an improved top nozzle subassembly with a hold-down device incorporated therewithin to prevent the force of the upward coolant flow from lifting the fuel assembly into damaging contact with the upper core support plate, while allowing for changes in fuel assembly length due to core-induced thermal expansion. The construction of the fuel assembly is such that its top surface can be placed in direct contact with the upper core plate. Thermal expansion of the components of the fuel assembly in the upward direction are accommodated within the top nozzle subassembly.

Similar Records