Resolution of thermal striping issue downstream of a horizontal pipe elbow in stratified pipe flow. [LMFBR]

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A thermally stratified pipe flow produced by a thermal transient when passing through a horizontal elbow as a result of secondary flow gives rise to large thermal fluctuations on the inner curvature wall of the downstream piping. These fluctuations were measured in a specially instrumented horizontal pipe and elbow system on a test set-up using water in the Mixing Components Technology Facility (MCTF) at Argonne National Laboratory (ANL). This study is part of a larger program which is studying the influence of thermal buoyancy on general reactor component performance. This paper discusses the influence of pipe flow generated thermal oscillations ... continued below

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Pages: 10

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Kuzay, T.M. & Kasza, K.E. January 1, 1985.

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Description

A thermally stratified pipe flow produced by a thermal transient when passing through a horizontal elbow as a result of secondary flow gives rise to large thermal fluctuations on the inner curvature wall of the downstream piping. These fluctuations were measured in a specially instrumented horizontal pipe and elbow system on a test set-up using water in the Mixing Components Technology Facility (MCTF) at Argonne National Laboratory (ANL). This study is part of a larger program which is studying the influence of thermal buoyancy on general reactor component performance. This paper discusses the influence of pipe flow generated thermal oscillations on the thermal stresses induced in the pipe walls. The instrumentation was concentrated around the exit plane of the 90/sup 0/ sweep elbow, since prior tests had indicated that the largest thermal fluctuations would occur within about one hydraulic diameter downstream of the elbow exit. The thermocouples were located along the inner curvature of the piping and measured the near surface fluid temperature. The test matrix involved thermal downramps under turbulent flow conditions.

Physical Description

Pages: 10

Notes

NTIS, PC A02/MF A01; 1.

Source

  • Annual meeting of the American Nuclear Society, Boston, MA, USA, 9 Jun 1985

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  • Other: DE85006195
  • Report No.: CONF-850610-4
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5633074
  • Archival Resource Key: ark:/67531/metadc1093794

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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

  • January 1, 1985

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • April 19, 2018, 9:34 a.m.

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Kuzay, T.M. & Kasza, K.E. Resolution of thermal striping issue downstream of a horizontal pipe elbow in stratified pipe flow. [LMFBR], article, January 1, 1985; Illinois. (digital.library.unt.edu/ark:/67531/metadc1093794/: accessed April 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.