- 學位論文
國聖於全黑事故情況下之分析研究
A Study on the Kuosheng Nuclear Power Plant under the Station Blackout Accident Conditions
摘要
核能相關單位對於核能的模擬非常重視，進行了非常多的實驗，開發出好幾套核電廠模擬分析的軟體，本文所使用的為 Fauske & Associates, Inc. (FAI)研發的核能電廠事故模擬的程式 MAAP 5(Modular Accident Analysis Program)與美國能源部所屬的聖地亞(Sandia)國家實驗室所開發的MELCOR1.8.5(Methods for Estimation of Leakages and Consequences of Releases)來進行模擬國聖電廠全黑事故個案分析。 本文分析個案為電廠全黑事故及加入緊急操作程序書及延續緊急操作程序書之操作邏輯對電廠進行救援動作並延遲消防水注入之時間分析，研究消防水延後注入對爐心的影響。藉著不同程式的比較，探討嚴重事故，更可以驗證程式模擬的準確性，便於發生事故時做出快速且正確的處置，提升核能電廠整體的安全性。本文分析所得結果顯示，於電廠全黑事故狀況下，MAAP5在計算蒸氣產生較為保守，導致事件發生之壓力及溫度峰值較小，而MELCOR1.8.5在計算氫氣產生較為保守，但兩程式模擬之趨勢大致相同。
並列摘要
Nuclear-related units have paid extraordinary attention to nuclear energy simulation. They have conducted a very large number of experiments and also developed several sets of nuclear power plant simulation software. The software used here are Modular Accident Analysis Program (MAAP5), developed by the Fauske & Associates, Inc., a simulation program for analyzing nuclear power plant accidents, and MELCOR1.8.5, developed by the U.S. Department of Energy’s Sandia National Laboratory. These two programs are applied to study the cases of severe accidents of Kuosheng Nuclear Power Plant. This thesis analyzes the case for the Station Blackout, the time difference between the added Emergency Operation Procedures and the sustained Emergency Operation Procedures, and their impacts on the rescue operation logic for the plant and the time delay of firefighting water pouring into nuclear reactor cores. By comparing the analyses of different programs, the paper explores the serious accidents and verifies the accuracy of the simulation programs, which facilitates a quicker and more appropriate operation when emergencies occur, elevating the safety of the overall nuclear power plant. The analysis results show that in the case of the Station Blackout, MAAP5 appears to be conservative in calculating the amount of steam generated, which ends up with the smaller numbers of pressure and temperature peaks. On the other hand, MELCOR1.8.5 is conservative in calculating the amount of hydrogen generated. Generally speaking, these two models have similar simulation tendencies.