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Title: TREAT (Transient Reactor Test Facility) reactor control rod scram system simulations and testing

Conference ·
OSTI ID:7175273

Air cylinders moving heavy components (100 to 300 lbs) at high speeds (above 300 in/sec) present a formidable end-cushion-shock problem. With no speed control, the moving components can reach over 600 in/sec if the air cylinder has a 5 ft stroke. This paper presents an overview of a successful upgrade modification to an existing reactor control rod drive design using a computer model to simulate the modified system performance for system design analysis. This design uses a high speed air cylinder to rapidly insert control rods (278 lb moved 5 ft in less than 300 msec) to scram an air-cooled test reactor. Included is information about the computer models developed to simulate high-speed air cylinder operation and a unique new speed control and end cushion design. A patent application is pending with the US Patent Trade Mark Office for this system (DOE case number S-68,622). The evolution of the design, from computer simulations thru operational testing in a test stand (simulating in-reactor operating conditions) to installation and use in the reactor, is also described. 6 figs.

Research Organization:
Argonne National Lab., Idaho Falls, ID (USA)
Sponsoring Organization:
DOE/NE
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
7175273
Report Number(s):
CONF-9004138-4; ON: DE90010581; TRN: 90-016103
Resource Relation:
Conference: 3. Canadian Nuclear Society international conference on simulation methods in nuclear engineering, Montreal (Canada), 18-20 Apr 1990
Country of Publication:
United States
Language:
English