Investigation of pressure transient propagation in pressurized water reactor feedwater lines

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Results are reported of a study for the Nuclear Regulatory Commission (NRC) to provide a general understanding of pressure transient (water hammer) propagation in pressurized water reactor (PWR) steam generator feedwater piping systems. A typical feedwater network is defined, and pressure transient initiation is discussed, as well as the plausible pulse shapes reported. The analysis is performed by using the computer codes PTA and WHAM. Forces are calculated at elbows and valves by using momentum principles. The effects of pipe yielding, pipe wall friction, and elbow and value losses are included. Pipe yielding and elbow/valve effects are found to be ... continued below

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Pages: 70

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Sutton, S.B. July 22, 1977.

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Description

Results are reported of a study for the Nuclear Regulatory Commission (NRC) to provide a general understanding of pressure transient (water hammer) propagation in pressurized water reactor (PWR) steam generator feedwater piping systems. A typical feedwater network is defined, and pressure transient initiation is discussed, as well as the plausible pulse shapes reported. The analysis is performed by using the computer codes PTA and WHAM. Forces are calculated at elbows and valves by using momentum principles. The effects of pipe yielding, pipe wall friction, and elbow and value losses are included. Pipe yielding and elbow/valve effects are found to be important, and pressure magnitudes and forces are substantially reduced when these effects are included in the analysis. Typical pressure and force time histories are also given.

Physical Description

Pages: 70

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Dep. NTIS, PC A04/MF A01.

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  • Report No.: UCRL-52265
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/5452084 | External Link
  • Office of Scientific & Technical Information Report Number: 5452084
  • Archival Resource Key: ark:/67531/metadc1074770

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • July 22, 1977

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • April 4, 2018, 1:01 p.m.

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Sutton, S.B. Investigation of pressure transient propagation in pressurized water reactor feedwater lines, report, July 22, 1977; United States. (digital.library.unt.edu/ark:/67531/metadc1074770/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.