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SPECIAL SECTION: SELECTED PAPERS FROM THE 2018 INTERNATIONAL YOUTH NUCLEAR CONGRESS

Evaluation of the Steam Generator Clogging Phenomena Kinetics by γ-Ray Counting

[+] Author and Article Information
Patricia Schindler

Thermohydraulics and Hydromechanics
Test Laboratory,
French Alternative Energies and
Atomic Energy Commission,
Nuclear Energy Direction,
Saint Paul les Durance F-13108, France
e-mail: patricia.schindler@cea.fr

Pierre Guy Allinei, Laurent Loubet

Nuclear Measurements Laboratory,
French Alternative Energies and
Atomic Energy Commission,
Nuclear Energy Direction,
Saint Paul les Durance F-13108, France

Veronique Pointeau

Thermohydraulics and Hydromechanics
Test Laboratory,
French Alternative Energies and
Atomic Energy Commission,
Nuclear Energy Direction,
Saint Paul les Durance F-13108, France

1Corresponding author.

Manuscript received July 26, 2018; final manuscript received February 8, 2019; published online March 15, 2019. Assoc. Editor: Jovica R. Riznic.

ASME J of Nuclear Rad Sci 5(2), 020912 (Mar 15, 2019) (8 pages) Paper No: NERS-18-1056; doi: 10.1115/1.4042851 History: Received July 26, 2018; Revised February 08, 2019

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References

Schindler, P. , Tevissen, E. , Pointeau, V. , and Ungar, A. , 2012, “ Colentec: A New Approach to Investigate Tube Support Plate Clogging of Steam Generators,” Nuclear Plant Chemistry Conference, Paris, France, Sept. 23–27, Paper No. 3P 2-10. https://www.researchgate.net/publication/316242114_COLENTEC_A_new_approach_to_investigate_tube_support_plate_clogging_of_Steam_GeneratorsCOLENTEC_A_new_approach_to_investigate_tube_support_plate_clogging_of_Steam_Generators
Corredera, G. , Alves-Vieira, M. , and De Bouvier, O. , 2008, “ Fouling and TSP Blockage of Steam Generators on EDF Fleet: Identified Correlations With Secondary Water Chemistry and Planned Remedies,” International Conference on Water Chemistry of Nuclear Reactor Systems, Berlin, Sept. 15–18, p. L09–2.
Rummens, H. E. , 1999, “ The Thermal hydraulics of Tube Support Fouling in Nuclear Steam Generator,” Ph.D. thesis, Carleton University, Ottawa, ON, Canada.
Rummens, H. E. , Rogers, J. R. , and Turner, C. W. , 2004, “ The Thermal Hydraulics of Tube Support Fouling in Nuclear Steam Generator,” Nucl. Technol., 148(3), pp. 268–286. [CrossRef]
Yang, G. , Pointeau, V. , Tevissen, E. , and Chagnes, A. , 2017, “ Investigations of the Tube Support Plate (TSP) Clogging Phenomenon in PWR Steam Generators, Understanding and Prioritization of Its Formation Mechanisms,” International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH), Xi'an, China, Sept. 3–8.
Prusek, T. , Moleiro, E. , Oukacine, F. , Adobes, A. , Jaeger, M. , and Grandotto, M. , 2013, “ Deposit Models for Tube Support Plate Flow Blockage in Steam Generators,” Nucl. Eng. Des., 262, pp. 418–428. [CrossRef]
Pointeau, V. , Tevissen, E. , Schindler, P. , Yang, G. , Chagnes, A. , Bretelle, J. L. , and Delaunay, S. , 2016, “ Synthesis and Characterization of Magnetite Deposits on Tube Support Plate in Colentec Diphasic Loop Dedicated to the Study of Steam Generator's Clogging,” Nuclear Plant Chemistry Conference, Brighton, UK, Oct. 2–7, Paper No. 145. https://www.researchgate.net/publication/313367415_Synthesis_and_characterization_of_magnetite_deposits_on_tube_support_plate_in_COLENTEC_diphasic_loop_dedicated_to_the_study_of_steam_generator's_clogging
Allinei, P. G. , 2011, “ Dimensioning Study of the Measurement System Associated With the Colentec Loop,” Personal communication.
Blet, V. , Girard, M. , Fritz, G. , Bantiche, S. , Galliano, N. , Decossin, E. , and Guinard, L. , 2006, “ In Situ ACP Deposit Measurement in the Cirene Out of Pile Loop,” International Conference on Water Chemistry of Nuclear Reactor System, Jeger Island, South Korea, Oct. 23–26.
Brunet, J. P. , and Campan, J. L. , 1987, “ Caustic Concentration in Tube Support Plate Crevices of Steam Generators,” Electric Power Research Institute, Palo Alto, CA, Report No. NP-5073.
Brunet, J. P. , and Campan, J. L. , 1987, “ Hideout of Sodium Salts in Tube Sheet Crevices,” Electric Power Research Institute,” Palo Alto, CA, Report No. NP-5265.
Schindler, P. , Stutzman, A. , Brunet, J. P. , Campan, J. L. , Shoemaker, E. , Carlyle, E. , and Paine, J. P. , 1995, “ Effect of Boric Acid on Intergranular Corrosion and on Hideout Return Efficiency of Sodium in the Tube Support Plate Crevices,” Seventh International Symposium on Environmental Degradation of Materials in Nuclear Power Systems, Water Reactors, Breckenridge, CO, Aug. 7–10, pp. 339–351. https://www.researchgate.net/publication/316243975_Effect_of_boric_acid_on_intergranular_corrosion_and_on_hideout_return_efficiency_of_sodium_in_the_tube_support_plate_crevices

Figures

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Fig. 1

Clogging phenomena in PWR's SG (EDF source)

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Fig. 2

Schematic view of Colentec setup

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Fig. 3

Colentec stet up and the SG mock-up associated

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Fig. 4

Schematic view of the TSP zone

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Fig. 5

Background noise modeling, comparison with a real background

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Fig. 6

59Fe spectrum in the global spectrum with 13 Bq/cm3

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Fig. 7

59Fe in the global spectrum with 1 Bq/cm3-Comparison between NaI and HP-Ge Detector

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Fig. 8

On line γ-counting at the SG mock-up level

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Fig. 9

Efficiency of the γ-ray detector as a function of the measured zone

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