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Title: CHAIN REACTING SYSTEM

Abstract

A nuclear reactor of the gas-cooled, graphitemoderated type is described. In this design, graphite blocks are arranged in a substantially cylindrical lattice having vertically orienied coolant channels in which uranium fuel elements having through passages are disposed. The active lattice is contained within a hollow body. such as a steel shell, which, in turn, is surrounded by water and concrete shields. Helium is used as the primary coolant and is circulated under pressure through the coolant channels and fuel elements. The helium is then conveyed to heat exchangers, where its heat is used to produce steam for driving a prime mover, thence to filtering means where radioactive impurities are removed. From the filtering means the helium passes to a compressor and an after cooler and is ultimately returned to the reactor for recirculation. Control and safety rods are provided to stabilize or stop the reaction. A space is provided between the graphite lattice and the internal walls of the shell to allow for thermal expansion of the lattice during operation. This space is filled with a resilient packing, such as asbestos, to prevent the passage of helium.

Inventors:
;
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4330262
Patent Number(s):
2837477
Assignee:
U. S. Atomic Energy Commission DTIE; NSA-12-014460
NSA Number:
NSA-12-014460
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; ASBESTOS; COMPRESSORS; CONCRETES; CONFIGURATION; CONTROL ELEMENTS; CYLINDERS; EXPANSION; FILTERS; FUEL ELEMENTS; GAS COOLANT; GRAPHITE MODERATOR; HEAT EXCHANGERS; HELIUM; IMPURITIES; PATENT; PRESSURE; RADIOACTIVITY; REACTORS; RODS; SHIELDING; STABILITY; STEAM; STEELS; URANIUM; WATER

Citation Formats

Fermi, E., and Leverett, M.C. CHAIN REACTING SYSTEM. United States: N. p., 1958. Web.
Fermi, E., & Leverett, M.C. CHAIN REACTING SYSTEM. United States.
Fermi, E., and Leverett, M.C. Sun . "CHAIN REACTING SYSTEM". United States.
@article{osti_4330262,
title = {CHAIN REACTING SYSTEM},
author = {Fermi, E. and Leverett, M.C.},
abstractNote = {A nuclear reactor of the gas-cooled, graphitemoderated type is described. In this design, graphite blocks are arranged in a substantially cylindrical lattice having vertically orienied coolant channels in which uranium fuel elements having through passages are disposed. The active lattice is contained within a hollow body. such as a steel shell, which, in turn, is surrounded by water and concrete shields. Helium is used as the primary coolant and is circulated under pressure through the coolant channels and fuel elements. The helium is then conveyed to heat exchangers, where its heat is used to produce steam for driving a prime mover, thence to filtering means where radioactive impurities are removed. From the filtering means the helium passes to a compressor and an after cooler and is ultimately returned to the reactor for recirculation. Control and safety rods are provided to stabilize or stop the reaction. A space is provided between the graphite lattice and the internal walls of the shell to allow for thermal expansion of the lattice during operation. This space is filled with a resilient packing, such as asbestos, to prevent the passage of helium.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {6}
}