CONTROL ROD WITHDRAWAL TRANSIENTS. Test Evaluation, DLCS 2760101 DLCS 2760201

Technical Report · Fri Dec 01 04:00:00 EST 1961

OSTI ID:4804846

Wieczorkowski, E A

Criticality and the average reactor coolant temperature of the Shippingport Atomic Power Station's nuclear reactor is controlled by hafnium control rods. Continuous withdrawal of the control rods, due to equipment malfunction or operator error. can be a potential danger to the reactor core. The reactor protection system provides automatic shutdown of the reactor core and thus limits the extent of accidental control rod withdrawal transients to protect the core. Analog simulation was employed to calculate the reactor plant response to control rod withdrawal accidents and thus determine the reactor shutdown setpoints of the protection system. The adequacy and/or degree of conservatism of the analog simulation in predicting plant response is of considerable importance. Testing was performed at the Shippingport Atomic Power Station to determine the actual plant response to mild control rod withdrawals under controlled conditions. The results of these tests were compared with calculations performed by analog simulation. The comparison of test data with calculations illustrated fairly good agreement or conservative calculations, i.e., calculations indicated greater transient excursions than did plant test data. (auth)

• Research Organization: Westinghouse Electric Corp. Bettis Atomic Power Lab., Pittsburgh
• DOE Contract Number: AT(11-1)-GEN-14
• NSA Number: NSA-16-025000
• OSTI ID: 4804846
• Report Number(s): WAPD-PWR-TE-99
• Country of Publication: United States
• Language: English

Related Subjects

ACCIDENTS
ACETONE
ANALOG SYSTEMS
BENZENE
CONTROL ELEMENTS
CONTROL SYSTEMS
CRITICALITY
CYANIDES
ELECTRIC CONDUCTIVITY
EQUATIONS
ERRORS
EXCURSIONS
FAILURES
HAFNIUM
INTERACTIONS
MOTION
NITRILES
ORGANIC COMPOUNDS
POWER PLANTS
PRESSURE
REACTOR SAFETY
REACTOR TECHNOLOGY
REACTORS
RODS
SHIPPINGPORT
SHUTDOWN
SILVER NITRATES
SOLUTIONS
TESTING
TRANSIENTS
VISCOSITY
WATER COOLANT
WATER MODERATOR