Rear face hardware replacement 105-B, D, DR, F, and H

Technical Report · Tue Dec 31 04:00:00 EST 1963

DOI:https://doi.org/10.2172/10145135· OSTI ID:10145135

Barker, C R; Young, J R

Prior to the use of venturis on the front of the B, D, DR, P, and H Reactors, much of the pressure and velocity heads developed by the 190 process water pumps were used in overcoming built-in frictional losses in the system external to the process tubes. As Reactor Technology was gained, changes were continually taking place. Venturis replaced orifices installed during original construction. Hydraulically efficient front nozzles, front pigtails, front adaptors, and a second generation of front venturis were designed and installed as a part of Project CG-558. Process changes, such as eliminating upstream dummy charges, were also made to reduce the energy dissipation due to frictional losses. The pressure drop across the active section of a fuel charge was reduced by the internal flow passage in the I&E elements. Little has been done to date, however, to reduce the pressure drops in the rear face fittings. This report is intended to review some of these still existent pressure restrictions and to discuss possible future courses of action.

• Research Organization: General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 10145135
• Report Number(s): HW--80164; ON: DE94010589
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200
220600
COMPONENTS AND ACCESSORIES
HANFORD PRODUCTION REACTORS
NOZZLES
OUTAGES
PRESSURE DROP
REACTOR COMPONENTS
REACTOR MAINTENANCE
REPAIR
RESEARCH
TEST
TRAINING
PRODUCTION
IRRADIATION
MATERIALS TESTING REACTORS
VENTURI TUBES