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Containment assessment results for ALFRED Results and conclusions (EA)

Containment assessment results for ALFRED Results and conclusions (EA). E. Bubelis of behalf of Task 5.6 of LEADER WP5. Model for RADTRAD calculation. 7/171 SAs severely damaged Source term  Fission Products: Kr, Xe, I, Sr, Cs, 3 H  ENEA Activation: 3 H (CR), 210 Po (Pb)  ENEA

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Containment assessment results for ALFRED Results and conclusions (EA)

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  1. Containment assessment results for ALFREDResults and conclusions (EA) E. Bubelis of behalf of Task 5.6 of LEADER WP5

  2. Model for RADTRAD calculation E. Bubelis – LEADER/ELECTRA Safety Review Workshop, Petten

  3. 7/171 SAs severely damaged Source term  Fission Products: Kr, Xe, I, Sr, Cs, 3H  ENEA Activation: 3H (CR), 210Po (Pb)  ENEA 100% release from pins & immediate release Volatilization fractions  800ºC (ULOF)  I, Cs, Sr, Po (by KTH) Data & assumptions (1/2) E. Bubelis – LEADER/ELECTRA Safety Review Workshop, Petten

  4. Containment Model Chemical form of Iodine isotopes  R.G. 1.183  Irrelevant (No removal) Radionuclide removal from containment  only decay and leakage, NO natural deposition, NO spray Primary Containment Leak rate  0.1% d-1 (EUR for LWR, Vol. 2, Rev. C) Dose Conversion Factors  FGR-11&12 X/Q  need of meteorological data  Pitesti (Romania) Reference values for accident condition (Spanish NPP) Data & assumptions (2/2) E. Bubelis – LEADER/ELECTRA Safety Review Workshop, Petten

  5. Activity Released to Environment Noble Gases & Tritium ~1012-1014 Bq (~100%) Lead-soluble FP & AP ~107-1010 Bq (<0.01%) E. Bubelis – LEADER/ELECTRA Safety Review Workshop, Petten

  6. Whole-body dose Xenon & Krypton ~0.1 mSv after 30 days (~100%) 88Kr+135Xe+133Xe (84%) E. Bubelis – LEADER/ELECTRA Safety Review Workshop, Petten

  7. Thyroid dose Iodine & Tritium ~0.03 mSv after 30 days (~100%) 131I+3H+133I (99%) E. Bubelis – LEADER/ELECTRA Safety Review Workshop, Petten

  8. Total Effective Dose Equivalent (TEDE) Noble Gases & Tritium ~0.1 mSv after 30 days (100%) E. Bubelis – LEADER/ELECTRA Safety Review Workshop, Petten

  9. Doses Whole-body, Thyroid & TEDE ~0.04-0.001% of US NRC limits after 30 days E. Bubelis – LEADER/ELECTRA Safety Review Workshop, Petten

  10. Doses – Sensitivity Analysis Whole-body, Thyroid & TEDE X/Q*10 & leakage*10  Source term 100 times higher E. Bubelis – LEADER/ELECTRA Safety Review Workshop, Petten

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