Sro Fuel Receipt

Front 1

Question 1a: What is the function of the fuel assembly top nozzle?

Back 1

Answer 1a: The top nozzle functions as the upper structural element of the fuel assembly, and provides a partial protective housing for the rod cluster control assembly or other components that are installed in the guide thimble tubes.

Front 2

Question 1b: What provides the structural integrity for the fuel assembly?

Back 2

Answer 1b: The guide thimbles and instrument tubes.

Front 3

Question 1c: What are three fuel assembly auxiliaries used at Wolf Creek?

Back 3

Answer 1c: Burnable poison assemblies (currently not being used), thimble plug assemblies, and rod cluster control assemblies

Front 4

Question 2a: The Spent Fuel Storage Facility is designed to keep personnel radiation exposure to what levels?

Back 4

Answer 2a: These facilities are designed to keep personnel radiation exposure less than 2.5 mrem/hour during normal operations, and less than 10 mrem/hour during refueling operations, and maintains the gaseous activity less than the 10 CFR Part 20 limits.

Front 5

Question 2b: What are the 5 areas of the fuel storage facility?

Back 5

Answer 2b: * New Fuel Storage Facility for dry storage of new fuel, Spent. * Spent fuel pool for permanent storage of spent irradiated assemblies and fuel inserts, and for temporary storage of fuel assemblies prior to core loading/reloading. * Fuel Transfer Canal for transferring fuel assemblies to and from spent fuel pool and containment. * Cask Loading Pool for loading spent fuel assemblies into shipping casks when shipping or transferring out of the spent fuel pool to some other storage. * Cask Washdown Pit for washing spent fuel-shipping casks down prior to releasing them from the fuel building.

Front 6

Question 3a: What are the phases of refueling operations?

Back 6

Answer 3a: New Fuel Receipt, Preparation, Reactor disassembly, Fuel handling, Reactor re-assembly, and Pre-operational checks and startup.

Front 7

Question 4a: What is the capacity of the Cask Handling Crane's main hoist?

Back 7

Answer 4a: The main hoist has a 150-ton capacity.

Front 8

Question 4b: What is used to move new fuel shipping containers and assemblies during new fuel receipt?

Back 8

Answer 4b: The monorail and auxiliary hoist.

Front 9

Question 5a: The operator is using the Cask Handling Crane and releases the button that is in use. The crane continues to operate. What action does the operator need to take?

Back 9

Answer 5a: Push the STOP button. The STOP button overrides all functions if a control button should stick in the ON position.

Front 10

Question 5b: What prevents transporting heavy loads over the spent fuel pool?

Back 10

Answer 5b: There are limit switches and mechanical stops that prevent the crane from traveling over the spent fuel pool.

Front 11

Question 6a: What is the function of the New Fuel Elevator?

Back 11

Answer 6a: The elevator is used to lower new fuel elements into the pool, where they can be moved to the Spent Fuel Pool with the Spent Fuel Bridge Crane.

Front 12

Question 7a: Can the New Fuel Elevator be used to raise a load?

Back 12

Answer 7a: The New Fuel Elevator is interlocked to prevent upward movement when it is loaded, thus preventing inadvertent removal of fuel from the pool. This interlock, as with the majority of the electrical interlocks throughout the Fuel Handling System, may be defeated with a key operated interlock bypass switch.

Front 13

Question 8a: What is the interrelationship between the Spent Fuel Pool and the ESW System?

Back 13

Answer 8a: The ESW System provides a safety-related supply of emergency makeup to the Spent Fuel Pool, when all other sources are unavailable and the spent fuel assemblies are in danger of being uncovered.

Front 14

Question 8b: How can a leak in the spent fuel pool liner be detected?

Back 14

Answer 8b: By using the Leak Chase and Collection System.

Front 15

Question 8c: What is the purpose for radiation monitors SD RE-36, 36, 37, and 38?

Back 15

Answer 8c: These provide continuous monitoring of the spent fuel pool and new fuel storage for inadvertent criticality.

Front 16

Question 8d: What is the purpose of the interface of the reactor makeup water system with the spent fuel pool?

Back 16

Answer 8d: The reactor makeup water system provides a source of borated water to the spent fuel pool and pure unborated water to the reservoirs for the upenders in the Fuel Building and Containment.

Front 17

Question 9a: What is the main radiological concern of failed fuel in the Spent Fuel Pool?

Back 17

Answer 9a: The damaged fuel will be the source of "Hot Particles." These hot particles can rapidly cause an administrative skin overexposure if they contaminate plant personnel.

Front 18

Question 10: What can you do to help prevent problems from occurring during refueling operations?

Back 18

Answer 10: Interact with the class, Discussion/Answers: Possible responses: - Procedure adherence - Communication - STAR - Good Turnover - Crew arrive on station together - Pre-Job Briefs - Other Human Factors - Careful attention to details, proper use of procedures, and a well trained, alert refueling crew using the STAR program will do much to prevent the occurrence or re-occurrence of these types of events.