- 學位論文
龍門電廠全黑事故外釋輻射劑量分析
A Study on the Explant Radiation Doses of Station Blackout Accident Scenario for the Lung-Men Nuclear Power Plant
摘要
隨著科技的發展，能源在現今的社會中是一個非常重要的課題，為了使能源多元化，人們運用科技發展出許多的方式來產生能源，其中核能就是比較成熟的技術之一。從最早1979年的美國三哩島事件(Three Mile Island)到近期日本福島(Fukushima)第一核電廠事故，這些事故加深了人們對核能的恐慌，因此核能安全是目前面臨最重要的話題之一。 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 (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MELCOR(Methods for Estimation of Leakages and Consequences of Releases)來進行模擬核四龍門電廠的嚴重事故個案分析，接著使用MAAP、MACCS(MELCOR Accident Consequence Code Systems)程式分析廠外輻射劑量。 本文分析個案為電廠全黑事故及加入緊及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進行靈敏度分析，研究消防水延後注入對爐心的影響，並對不同個案進行輻射劑量的分析。藉著不同程式的比較，探討嚴重事故與輻射劑量外釋的關連性，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。本文中可以發現MAAP5在計算融熔物掉落底部時電廠全黑事故較為保守，即為事件發生峰值時間較早，MELCOR1.8.5在計算無融熔物掉落底部時電廠全黑事故會較為保守，但兩程式模擬之趨勢大致相同。
並列摘要
With the development of technology, energy in today's society is a very important issue. In order to diversify energy sources, people use numerous technologies to develop and generate energy, and nuclear energy is one of the relatively mature technologies. United States from the earliest 1979 Three Mile Island incident to the recent Fukushima Daiichi nuclear power plant accident, these incidents heighten the perception of fear of nuclear energy, so nuclear safety is now facing the most important topic. Nuclear-related units for nuclear energy simulation are very seriously, for a very large number of experiments, and the development of several sets of nuclear power plant simulation software. As used herein, the Fauske Associates, Inc. researches and develops nuclear power plant accident simulation program Modular Accident Analysis Program. The U.S. Department of Energy's Sandia National Laboratory developed MELCOR to simulate Lung-Men Nuclear Power Plant cases of severe accident analysis of the plant. This thesis analyzes the case for the Station Blackout and joined the Emergency Operation Procedures of the rescue operation logic operation for the plant. The time delay firefighting water into a sensitivity analysis to study the fire water delayed implantation on the impact of the reactor core, and different cases analysis of the radiation dose. By comparison of different programs, the paper which verifies the accuracy of the simulation program explores the serious accident, and radiation dose external release connected. When accident happened to make quick right ways, Operator enhances the safety of nuclear power plants.