IMPROVEMENTS IN OR RELATING TO NUCLEAR REACTORS

Journal Article · Fri Nov 01 04:00:00 EST 1957 · Nuclear Power

OSTI ID:4344866

Moore, R V; Dent, K H; Bowen, J H

This is the basic patent for the PIPPA design study for a natural- uranium, gas-cooled graphite-moderated power reactor that later became Calder Hall. It apparently covers a core with vertical fuel element channels arranged on a regular lattice in groups with a control rod in the center of each group. The whole core is contained in a pressure vessel and access to the fuel and control rods is from above through standpipes. Heat exchanger and gas circulation systems are described in the specification, as is the burst slug detection system. An interesting point covered is the design of graphite blocks to permit Wigner growth at the same time maintaining the lattice geometry As is well known, the final Calder Hall design was rather different in some resOects from PIPPA. In particular the patent specification covers ledges in the graphite fuel channels for separate support of the fuel elements: at Calder this was abandoned in place of straightforward stacking. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-12-002606
• OSTI ID: 4344866
• Journal Information: Nuclear Power, Journal Name: Nuclear Power Vol. 2; ISSN 0546-8981; ISSN NUPOAS
• Country of Publication: United Kingdom
• Language: English

Related Subjects

CONTROL SYSTEMS
FUEL ELEMENTS
GAS COOLANT
GRAPHITE MODERATOR
HEAT EXCHANGERS
LATTICES
PATENT
PATENTS
PLANNING
PRESSURE VESSELS
RADIATION DETECTORS
REACTOR CORE
REACTORS
RODS
URANIUM