A MECHANISM EXPLAINING THE INSTABILITY OF EBR-I, MARK III

Technical Report · Fri Sep 01 00:00:00 EDT 1961

DOI:https://doi.org/10.2172/4836022· OSTI ID:4836022

Smith, R. R.; Matlock, R. G.; McGinnis, F. D.; Novick, M.; Thalgott, F. W.

Presented at the International Atomic Energy Agencysponsored Seminar on the Physics of Fast and Intermediate Reactors. Vienna, August 3-11, 196l. A feedback model, was developed to account for resonant instabilities in the Mark II core. In this model, the prompt positive power coefficient effect is ascribed to fuel rod bowing and the delayed negative power coefficient effect to thermally lnduced motions in the lower shield plate. Since this model is supported by observations, it is concluded that the instability of Mark II is chiefly due to lack of radial coupling between fuel rods. (D.L.C.)

• Research Organization: Argonne National Lab., Argonne, Ill.
• DOE Contract Number: W-31-109-ENG-38
• NSA Number: NSA-16-001185
• OSTI ID: 4836022
• Report Number(s): ANL-6354
• Resource Relation: Other Information: Presented at the International Atomic Energy Agency-sponsored Seminar on the Physics of Fast and Intermediate Reactors, Vienna, August 3-11, 1961. Orig. Receipt Date: 31-DEC-62
• Country of Publication: United States
• Language: English

Related Subjects

REACTOR TECHNOLOGY
ANALOG SYSTEMS
CONFERENCE
CONFIGURATION
DEFORMATION
DELAYED NEUTRONS
EBR-1
FAILURES
FUEL ELEMENTS
HEAT TRANSFER
MEASURED VALUES
MECHANICAL STRUCTURES
MOTION
NEUTRON FLUX
PLANNING
PLATES
POWER PLANTS
PROMPT NEUTRONS
REACTIVITY
REACTOR CORE
REACTOR SAFETY
RESONANCE
RODS
SHIELDING
STABILITY
TEMPERATURE
THERMAL STRESSES
TRANSFER FUNCTIONS
TRANSIENTS
VARIATIONS