Feedpump operation and design guidelines. Summary report: Final report

Technical Report · Tue Jun 01 04:00:00 EDT 1993

OSTI ID:10172191

Guelich, J F; Bolleter, U; Simon, A

Unscheduled outages and deratings caused by problems with feedpumps cost utilities an estimated $460 million in replacement power costs in 1985. Among the leading causes of feedpump failures were: Hydraulic instabilities caused by partload flow separation; Cavitation erosion; Excessive rotor vibrations and pressure pulsations; Premature wear due to thermal deformations of casing and rotor; and Inadequate design of feedpump suction piping. The physical mechanisms leading to such failures have been investigated in great depth under the EPRI research project 1884-10. The present report summarizes the most important results of these investigations and emphasizes the guidelines developed to prevent the above pump failures.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); Sulzer Bros. Ltd., Winterthur (Switzerland)
• Sponsoring Organization: Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 10172191
• Report Number(s): EPRI-TR--102102; ON: UN93017531
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200
CAVITATION
COMPONENTS AND ACCESSORIES
DESIGN
EROSION
FAILURES
FEEDWATER
FLUID FLOW
HYDRAULICS
MAINTENANCE
MECHANICAL VIBRATIONS
NUCLEAR POWER PLANTS
OPERATION
PUMPS
RELIABILITY
ROTORS
THERMAL DEGRADATION
WEAR