• Title/Summary/Keyword: TROI

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The Verification of TEXAS-V code for TROI Experimental Results and the Evaluation of the Ex-vessel Steam Explosion Load (TROI 실험결과를 활용한 TEXAS-V 코드 검증 및 원자로 노외증기폭발 하중평가)

  • Park, Ik-Kyu;Kim, Jong-Hwan;Min, Beong-Tae;Hong, Seong-Ho;Kim, Hee-Dong;Hong, Seong-Wan
    • Proceedings of the KSME Conference
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    • 2007.05b
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    • pp.3485-3490
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    • 2007

  • The TEXAS-V code tuned for TROI-13 was used for analyzing the parametric findings in TROI experiments. The calculations on the melt composition are relatively similar to the TROI experimental results. The water depth effect in TEXAS-V code seems to be consistent with TROI experiments in some degree. The water area effect of TEXAS-V calculations seems not to be harmonious to that in TROI experiments. This seems to indicate that TEXAS-V as 1-dimensional code or as the numerical steam explosion has a limitation on estimating area effect. Thus, TEXAS-V tuned for TROI-13 seems to have an ability to estimate the parametric effect of TROI experiments. The evaluated TEXAS-V was used for estimating the ex-vessel steam explosion load. The calculated explosion pressure and load were about 40 MPa and 75 kPa.sec, which are not much threatening level for containment integrity, but are arguable value for the integrity.

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An Evaluation of the Ex-vessel Steam Explosion Load Against TROI Experimental Results (TROI 실험결과를 활용한 원자력발전소 중대사고시 노외 증기폭발 하중평가)

  • Park, Ik-Kyu;Kim, Jong-Hwan;Min, Beong-Tae
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.33 no.8
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    • pp.622-628
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    • 2009

  • The TEXAS-V code tuned for TROI-13 was used for analyzing the parametric findings in TROI experiments. The calculations on the melt composition are relatively similar to the TROI experimental results. The water depth effect in TEXAS-V code seems to be consistent with TROI experiments in some degree. The water area effect of TEXAS-V calculations seems not to be harmonious to that in TROI experiments. This seems to indicate that TEXAS-V as 1-dimensional code or as the numerical steam explosion has a limitation on estimating area effect. Thus, TEXAS-V tuned for TROI-13 seems to have an ability to estimate the parametric effect of TROI experiments. The evaluated TEXAS-V was used for estimating the ex-vessel steam explosion load. The calculated explosion pressure and load were about 40 MPa and 75 kPa.sec, which are not much threatening level for containment integrity.

  • https://doi.org/10.3795/KSME-B.2009.33.8.622 인용 PDF KSCI

The TROI Steam Explosion Experiments Using Metal-added Corium (금속이 함유된 코륨을 이용한 TROI 증기폭발 실험)

  • Kim, Jong-Hwan;Min, Beong-Tae;Hong, Seong-Wan;Hong, Seong-Ho;Park, Ik-Kyu;Song, Jin-Ho;Kim, Hee-Dong
    • Proceedings of the KSME Conference
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    • 2007.05b
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    • pp.3479-3484
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    • 2007

  • Two steam explosion experiments were performed in the TROI facility by using metal-added molten corium (core material) which is produced during a postulated severe accident in the nuclear reactor. A triggered steam explosion occurred in a case, but no triggered steam explosion did in the other case. The dynamic pressure and the dynamic load measured in the former experiment show a stronger explosion that those performed previously with oxidic corium. A steam explosion is prohibited when the melt temperature is low, because the melt is easily solidified to prevent a liquid-liquid interaction.

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