کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8067087 | 1521080 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Systematic hydrogen risk analysis of OPR1000 containment before RPV failure under station blackout scenario
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کلمات کلیدی
SDSKNTFSARLBLOCALoss of Offsite PowerPassive autocatalytic recombinerMSSVOPR1000Hydrogen deflagrationPWRSafety Injection TankCEDMRPVRDTRCSDBASITCSSPDSCDFSBOAICcESFNPPLarge break loss of coolant accident - از دست دادن شکست بزرگ از تصادف خنک کنندهDeflagration-to-detonation transition - انتقال جابجایی به انفجارThai - تایلندیSafety injection - تزریق ایمنیPar - توسطSevere Accident - حادثه شدیدControl volume - حجم کنترلLoop - حلقهStation Blackout - خاموش شدن ایستگاهCFD - دینامیک سیالاتComputational fluid dynamics - دینامیک سیالات محاسباتیDDT - دیکرو دیفنیل تری کلرواتانPressurized Water Reactor - راکتور آب تحت فشارReactor coolant system - سیستم خنک کننده راکتورFlame acceleration - شتاب شعلهDesign basis accident - طراحی تصادفیCore damage frequency - فرکانس آسیب هستهReactor pressure vessel - مخزن مخزن راکتورMELCOR - ملکورnuclear power plant - نیروگاه هستهایLumped parameter - پارامتر توزیع شدهPANDA - پانداSteam generator - ژنراتور بخارFinal Safety Analysis Report - گزارش نهایی تجزیه و تحلیل ایمنی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
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چکیده انگلیسی
This study postulates a hydrogen risk analysis for the Korean Optimized Power Reactor 1000â¯MWe (OPR1000) until the reactor pressure vessel (RPV) fails under a station blackout (SBO) scenario, using the MELCOR 1.8.6 code. A detailed MELCOR input for OPR1000 was developed through the modified nodalization of the containment building considering hydrogen release paths. The reactor drain tank compartment is the major compartment of interest, because it is a proximate hydrogen release path before the failure of the RPV under the SBO scenario. The flammability and the flame propagation regime for hydrogen combustion in each compartment were evaluated by applying the criteria for ignition, flame acceleration (FA), and deflagration-to-detonation transition (DDT). As a result, the Annulus 1st A and B regions were identified as the flammable compartments exceeding the ignition criteria embedded in the MELCOR BUR package. In terms of the flame propagation regime, the major compartments were determined as being exposed to the possibility of FA meeting the Ï-criterion. However, the possibility of DDT was not predicted when the L/7λ-criterion was applied. Nevertheless, it should be noted that these criteria for evaluating FA and DDT give required, but not necessarily sufficient conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Nuclear Energy - Volume 116, June 2018, Pages 429-438
Journal: Annals of Nuclear Energy - Volume 116, June 2018, Pages 429-438
نویسندگان
Nam Kyung Kim, Joongoo Jeon, Wonjun Choi, Sung Joong Kim,