Experimental and theoretical studies of criticality safety by ingress of water in systems with pebble-bed high-temperature gas-cooled reactor fuel

Journal Article · Fri Aug 01 00:00:00 EDT 1975 · Nucl. Sci. Eng., v. 57, no. 4, pp. 328-332

OSTI ID:4077359

Drueke, V; Filges, S; Kirch, N; Neef, R D

Experiments in a subcritical assembly with pebble-bed high-temperature gas-cooled reactor fuel and hydrogen ranging between 0 and 14.4 vol percent were carried out to study the effects of water ingress in reactivity and to test the accuracy of diffusion-code calculations for small subcritical systems. Special emphasis is given to an adequate description of the influence of the water ingress on the diffusion properties of the pebble-bed system. The agreement between experimental and theoretical results is in all cases better than +-0.01 in k/sub eff/.(auth)

• Research Organization: Kernforschungsanlage, Juelich, Ger.
• NSA Number: NSA-33-016437
• OSTI ID: 4077359
• Journal Information: Nucl. Sci. Eng., v. 57, no. 4, pp. 328-332, Other Information: Orig. Receipt Date: 30-JUN-76
• Country of Publication: United States
• Language: English

Related Subjects

N77900* -Reactors-Reactor Safety & Environmental Aspects
N77300 -Reactors-Power Reactors
Non-breeding
Graphite Moderated
N52300 -Nuclear Materials & Waste Management-Handling Equipment & Procedures
220900* -Nuclear Reactor Technology-Reactor Safety
*CRITICALITY
*FUEL ASSEMBLIES- CRITICALITY
*HTGR TYPE REACTORS- FUEL ASSEMBLIES
*PEBBLE BED REACTORS- FUEL ASSEMBLIES
HYDROGEN
RADIATION ACCIDENTS
REACTOR ACCIDENTS
REACTOR SAFETY
STORAGE
TRANSPORT
WATER