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INTERIM EXAMINATIONS OF EXPERIMENTAL FUEL RODS TESTED IN THE MIR REACTOR UNDER PWR CONDITIONS

INTERIM EXAMINATIONS OF EXPERIMENTAL FUEL RODS TESTED IN THE MIR REACTOR UNDER PWR CONDITIONS. A.V. Burukin , O.N. Vladimirova , A.L. Izhutov , A.I. Dolgov , P.A. Ilyin, V.V. Kalygin, M.A. Mokeichev, V.A. Ovchinnikov . JSC “SSC RIAR”, Dimitrovgrad, Russia. Reactor MIR .М1.

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INTERIM EXAMINATIONS OF EXPERIMENTAL FUEL RODS TESTED IN THE MIR REACTOR UNDER PWR CONDITIONS

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  1. INTERIM EXAMINATIONS OF EXPERIMENTAL FUEL RODS TESTED IN THE MIR REACTOR UNDER PWR CONDITIONS A.V. Burukin, O.N. Vladimirova, A.L. Izhutov, A.I. Dolgov, P.A. Ilyin, V.V. Kalygin, M.A. Mokeichev, V.A. Ovchinnikov. JSC “SSC RIAR”, Dimitrovgrad, Russia

  2. Reactor MIR.М1 Loop Facility PV-2 Standardfuelassembly Control rods

  3. Design ofEFAs andExperimental Fuel Rods EFA Head Fuel plug Spacer Grids E110 s.p. E125 12,6 mm Spring Fuel pellet Cladding Ø9,5 mm Fuel plug Support grid

  4. EFA MIR Inspection Stand Eddy current sensor Output unit Magnetic field lines Oxide film Cladding Induced eddy currents

  5. Methodological aspects of measuring the oxide film thickness Set of non-irradiatedcladding segments with the known oxide film thickness value Inspection stand Ø9,5 mm Ø9,1 mm Inspection stand

  6. Test Results of Experimental Fuel Rods Maximumlinear heat rate, W/cm 2 1 2 3 3 Fuel rod height , m Fuel rod height, m 1 Average fuel burnup in the experimental fuel rods, MW/days×kgU Temperature, °С Steam content, %

  7. Test Results of cladding corrosion resistance LHR, W/cm Average fuel burnup in the experimental fuel rods, MW/days×kgU

  8. Average fuel burnup in the experimental fuel rods Test Results of cladding corrosion resistance 30,0 MW×days/kgU 16,5 MW×days/kgU E110 s.p. E125 E110 s.p. E125 Fuel rodheight, mm Fuel rodheight, mm Oxide film thickness, µm Oxide film thickness, µm

  9. Test Results of cladding corrosion resistance Maximum thickness of the oxide film, µm E125 E110 s.p. Average fuel burnup in the experimental fuel rods, MW/days×kgU

  10. Thank you for your attention!

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