A Siphon Break as a Blocking Valve

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Description

An experiment was conducted io determine the feasibility of using the breaking of a siphon as a quick-acting means for stopping sodium fiow following a loss of pump power. A 2-in. pipe system with a high-speed free-surface centrifugal pump was used in this investigation. Runs were made with sodium at 500 and 940 deg F, cover gas at various pressures up to 10 psig, and Reynolds numbers up to approximately 360,000. The siphon-break was established as an effective method for rapid flow stoppage; however, a brief reversal of flow follows the initial flow stoppage. An expression for the flow transient ... continued below

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Pages: 29

Creation Information

McDonald, J. & Marten, W. October 15, 1959.

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Description

An experiment was conducted io determine the feasibility of using the breaking of a siphon as a quick-acting means for stopping sodium fiow following a loss of pump power. A 2-in. pipe system with a high-speed free-surface centrifugal pump was used in this investigation. Runs were made with sodium at 500 and 940 deg F, cover gas at various pressures up to 10 psig, and Reynolds numbers up to approximately 360,000. The siphon-break was established as an effective method for rapid flow stoppage; however, a brief reversal of flow follows the initial flow stoppage. An expression for the flow transient following the breaking of the siphon was derived which agreed reasonably well with experimental results. (auth)

Physical Description

Pages: 29

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  • Other Information: Orig. Receipt Date: 31-DEC-60

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  • Report No.: NAA-SR-4050
  • Grant Number: AT-11-1-GEN-8
  • DOI: 10.2172/4240708 | External Link
  • Office of Scientific & Technical Information Report Number: 4240708
  • Archival Resource Key: ark:/67531/metadc1027297

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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

  • October 15, 1959

Added to The UNT Digital Library

  • Oct. 15, 2017, 10:09 p.m.

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  • Jan. 22, 2018, 11:26 a.m.

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McDonald, J. & Marten, W. A Siphon Break as a Blocking Valve, report, October 15, 1959; Canoga Park, California. (digital.library.unt.edu/ark:/67531/metadc1027297/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.