Results of Parallel Flow Oscillator Studies. Progress Report No. 2

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From the results of the tests it is clear that changing from series to parallel flow effects little or no change i the nature of the reactivity feedback. The physical processes which characterize the magnitude and time dependence of the negative power coefficient of reactivity are apparently identical in both instances. Accordingly, it is reasonable to infer that the conclusions reached as he result of the series flow studies are still valid. These are :(1) the overall power (temperature) coefficient of reactivity is negative, (2) evidence of a positive temperature coefficient of reactivity is completely lacking, (3) a small increase … continued below

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41 pages : illustrations

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Smith, ‎R. R.; Boland, James F., 1927- & Thalgott, F. W. April 17, 1958.

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Description

From the results of the tests it is clear that changing from series to parallel flow effects little or no change i the nature of the reactivity feedback. The physical processes which characterize the magnitude and time dependence of the negative power coefficient of reactivity are apparently identical in both instances. Accordingly, it is reasonable to infer that the conclusions reached as he result of the series flow studies are still valid. These are :(1) the overall power (temperature) coefficient of reactivity is negative, (2) evidence of a positive temperature coefficient of reactivity is completely lacking, (3) a small increase in the amplitude of the transfer function and a peaking of the associated phase lag in the region 0.06 to 0.15 c/sec is the direct result of feedback from a time dependent negative power coefficient, (4) the separated feedback appears to be in reasonable agreement with conventional mathematical models, (5) the reactor is stable to impressed reactivity oscillations beyond the power level at which the reactor is limited by heat transfer considerations.

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41 pages : illustrations

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Digitized from microopaque cards (2).

Includes bibliographic references (page 12).

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  • Report No.: AECU-4007
  • SuDoc Number: Y 3.At 7:22/AECU-4007
  • Accession or Local Control No: metadc1240447
  • Archival Resource Key: ark:/67531/metadc1240447

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  • April 17, 1958

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  • Nov. 5, 2023, 7:50 a.m.

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  • July 31, 2024, 11:39 a.m.

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Smith, ‎R. R.; Boland, James F., 1927- & Thalgott, F. W. Results of Parallel Flow Oscillator Studies. Progress Report No. 2, report, April 17, 1958; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1240447/: accessed May 12, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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