OMR (PIQUA) UNITIZED CONTROL-SAFETY ROD PROTOTYPE TESTS

Technical Report · Thu Jun 30 04:00:00 EDT 1960

OSTI ID:4183406

Howell, J D; Weeks, C C

S>A unitized magnetic jack driven control-safety red was developed for the 45.5 thermal megnwatt organic moderated reactor (Piqua). The md assembly, includin g neutron absorber, magnetic jack drive, shock absorber and position in dicator, is designed to be installed inside the reactor core tank and to operate immersed in the reactor coolant (Santowax-R) at 550 to 600 deg F. Results of component tests were reported in NAA-SR-3172. Two prototupe rods, representative of the type to be used in the Piqua plant, were subjected to extensive performance and life tests in hot Santowax-R. Requirements on rod speed (10 inches per minute) scrsun time (800 microseconds maximum) and position indicator accuracy ( plus or minus 1/4 inch) were met in these tests. Total rod travel without failure or maintenance of 86,000 and 65,000 feet, respectively, (equivalent to 10,750 and 8,125 full excursions) by the two prototypes demonstrated the reliability of the magnetic jack drive in this application. (auth)

• Research Organization: Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
• DOE Contract Number: AT(11-1)-GEN-8
• NSA Number: NSA-14-018628
• OSTI ID: 4183406
• Report Number(s): NAA-SR-5077
• Country of Publication: United States
• Language: English

Related Subjects

CONFIGURATION
CONTROL ELEMENTS
HIGH TEMPERATURE
MACHINE PARTS
MOTION
ORGANIC COOLANT
ORGANIC MODERATOR
PERFORMANCE
PIQUA OMR
POWER PLANTS
REACTOR TECHNOLOGY
REACTORS
TESTING
VELOCITY