Method of and apparatus for shutting down a gas-cooled nuclear reactor

US4279697A · kind A · utility

Assignees

• Kernforschungsanlage Lulich Gesellschaft mit beschrankter Haftung · DE
• BAYER HEALTHCARE LLC · DE

Inventors

• Theodor Overhoff · Niederzier, DE
• Rudolf Schulten · Aachen, DE
• Jasbir Singh · Whitefield, IN
• Gerd Sylvester · Leverkusen, DE
• Josef Witte · Cologne, DE

Key dates

• Filing date: Nov 30, 1978
• Grant date: Jul 21, 1981
• Expiry date: Nov 30, 1998

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E30/30
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A gas-cooled nuclear reactor whose nuclear-fuel elements are constituted by graphite-encapsulated nuclear fuel particles and have graphite coatings is shut down in accordance with the present invention by introducing into the primary coolant gas circulation, a gadolinium-containing substance which is dispersed in the primary cooling gas before the latter enters the space between the fuel elements within the reactor core so that the gadolinium-containing substance is at least partly deposited on the free graphitic surfaces of the fuel elements.