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Plutonium and MA Management in VVER-440 and FR

Plutonium and MA Management in VVER-440 and FR. P. D ařílek, R. Zajac – VUJE Trnava darilek@vuje.sk J. Breza, V Nečas – SUT Bratislava. VVER-440. PWR reactor power 440 MW el triangular net „black“ control rods hexagonal fuel assembly. Standard uranium FA of VVER-440.

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Plutonium and MA Management in VVER-440 and FR

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  1. Plutonium and MA Management in VVER-440 and FR P. Dařílek, R. Zajac – VUJE Trnava darilek@vuje.sk J. Breza, V Nečas – SUT Bratislava VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  2. VVER-440 • PWR reactor • power 440 MWel • triangular net • „black“ control rods • hexagonal fuel assembly Standard uranium FA of VVER-440 VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  3. VVER-440 open fuel cycle description • reference case • feeding enrichment 4.2 % U235 • no reprocessing VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  4. VVER-440 closed fuel cycle with IMF description VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  5. VVER-440 closed fuel cycle with IMF description VVER-440 combined fuel assembly (CFA) • microheterogeneous assembly • 30 transmutation pins (TP) with: • 6.17 wt.% Pu oxides • 0.77 wt.% MA oxides • from CFA UP reprocessing Transmutation pin with inert matrix fuel Fresh UOX pin with 4.2% U235 enrichment VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  6. isotope wt. content (%) content (%) isotope content (%) Pu-238 3.00 Cm-242 0.02 NpO2 0.349 Pu-239 52.20 Cm-243 0.74 PuO2 6.174 Pu-240 25.19 Cm-244 90.97 AmO2 0.371 Pu-241 12.35 Cm-245 7.34 CmO2 0.047 Pu-242 7.26 Cm-246 0.92 CfO2 0.000 Cm-247 0.01 ZrO2 93.059 Cm-248 0.00 isotope content (%) isotope content (%) Am-241 67.94 Cf-249 64.16 Am-243 31.83 Cf-250 20.88 Am-242m 0.23 Cf-251 12.64 Cf-252 2.31 VVER-440 closed fuel cycle with IMF description Detailed composition of fresh TP • reprocessing of all UPs • all Pu and MA into TPs • no TP reprocessing • equilibrium cycle without UOX core VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  7. FRclosed fuel cycle description VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  8. isotope content (% of HM) content (%) isotope content (%) Pu-238 3.00 Cm-242 0.02 U-235 0.250 Pu-239 45.25 Cm-243 0.62 Np 0.097 Pu-240 39.58 Cm-244 45.70 Pu 23.223 Pu-241 4.46 Cm-245 17.87 Am 1.623 Pu-242 7.71 Cm-246 28.91 Cm 0.977 Cm-247 3.60 Cf 0.003 Cm-248 3.30 U-238 73.827 isotope content (%) isotope content (%) Am-241 58.34 Cf-249 76.32 Am-243 38.77 Cf-250 19.81 Am-242m 2.89 Cf-251 3.79 Cf-252 0.07 FRclosed fuel cycle description Fast reactor fuel assembly (FFA) Super Phenix FA VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  9. Fuel cycle Units VVER-440 open VVER-440 IMF FR Pu transmutation rate kg/TWhe 0.00 30.70 25.4 MA transmutation rate kg/TWhe 0.00 0.46 4.15 Pu and MA rate in entering fuel % 0.00 6.94 25.9 Pu and MA rate in spent fuel % 1.22 0.46 21.9 Quantity of separated Pu kg/TWhe 0.00 41.20 151 Content of (Pu239+Pu241) in separated Pu % 0.00 64.55 49.7 Inventory of Pu in cycle incl.core kg/TWhe 26.00 6.76 150 Content of (Pu239+Pu241) in burned fuel % 0.83 0.061 49.2 Amount of finally disposed of Pu kg/TWhe 26.00 10.50 0.15 Cycle comparison Pu and MA balance VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  10. Conclusion • Comparison of closed cycles • comparable Pu transmutation rate • fissionable Pu content in spent IMF very low • Pu amount in FR cycle much higher • MA transmuted 4-times faster in FR • finally disposed Pu amount 70-times smaller VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

  11. Acknowledgements Performance of mentioned analyses could not be possible without participation of VUJE and SUT at the RED-IMPACT project. We want to acknowledge especially valuable advise and notes of project and WP leaders W. Gudowski, W.v. Lensa, D. Greneche, L. Boucher and C. Zimmermann. This project has been partially supported by the Slovak grant agency for science through the grant No. 1/3160/06. VUJE , Inc., Okružná 5, SK 918 64 Trnava, Slovakia

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