Experimental investigations of two-phase mixture level swell and axial void fraction distribution under high pressure, low heat flux conditions in rod bundle geometry

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Experimental data is reported from a series of quasi-steady-state two-phase mixture level swell and void fraction distribution tests. Testing was performed at ORNL in the Thermal Hydraulic Test Facility - a large electrically heated test loop configured to produce conditions similar to those expected in a small break loss of coolant accident. Pressure was varied from 2.7 to 8.2 MPa and linear power ranged from 0.33 to 1.95 kW/m. Mixture swell was observed to vary linearly with the total volumetric vapor generation rate over the power range of primary interest in small break analysis. Void fraction data was fit by … continued below

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22 pages

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Anklam, T. M. & White, M. D. January 1, 1981.

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Experimental data is reported from a series of quasi-steady-state two-phase mixture level swell and void fraction distribution tests. Testing was performed at ORNL in the Thermal Hydraulic Test Facility - a large electrically heated test loop configured to produce conditions similar to those expected in a small break loss of coolant accident. Pressure was varied from 2.7 to 8.2 MPa and linear power ranged from 0.33 to 1.95 kW/m. Mixture swell was observed to vary linearly with the total volumetric vapor generation rate over the power range of primary interest in small break analysis. Void fraction data was fit by a drift-flux model and both the drift-velocity and concentration parameter were observed to decrease with increasing pressure.

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22 pages

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NTIS, PC A02/MF A01.

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  • Conference on small break loss of coolant accident analysis in LWR's, Monterey, CA, USA, 25 Aug 1981

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  • Other: DE81028072
  • Report No.: CONF-810806-8
  • Grant Number: W-7405-ENG-26
  • Office of Scientific & Technical Information Report Number: 6169677
  • Archival Resource Key: ark:/67531/metadc1113391

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1981

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  • Feb. 22, 2018, 7:45 p.m.

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  • Jan. 12, 2021, 1:01 p.m.

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Anklam, T. M. & White, M. D. Experimental investigations of two-phase mixture level swell and axial void fraction distribution under high pressure, low heat flux conditions in rod bundle geometry, article, January 1, 1981; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1113391/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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