核四廠電廠全黑狀況下嚴重事故導則之分析

A Study on the Severe Accident Guideline for the Fourth Nuclear Power Plant under station blackout condition

李志毅(Chin-Yi Lee)

指導教授 ： 鄧治東

中原大學/工學院/光機電及資電控產業研發碩士專班/碩士(2008年)

https://doi.org/10.6840/cycu200800492

摘要

本研究係針對龍門電廠所採用之進步型沸水式反應爐（Advanced Boiling Water Reactor, ABWR），應用MAAP 4.0.4程式進行電廠全黑事故（Station Blackout, SBO）安全分析。研究重點係按照嚴重事故導則（Severe Accident Guideline, SAGs）之控制程序模擬本研究之事故，以MAAP 4.0.4程式計算和分析事故之嚴重性，並分析所得之事故序列表中各現象之差異性。
本文中針對龍門電廠，電廠全黑事故所進行之探討與研究，並且將事故依據嚴重事故導則，僅使用消防水注水系統（ACIWA），將其注水時間靈敏度分為四個案例進行模擬運跑，分析消防水之延遲時間，對爐心之各種數據影響進行探討，於結果中顯示，按照嚴重事故導則以模擬設定之事故序列，針對爐心注水時間做延遲，將引發爐心壓力的增大、燃料棒的嚴重損毀以及過多的惰性氣體外洩，但是依據嚴重事故導則（Severe Accident Guideline, SAGs）進行控制，爐心溫度、壓力隨即被消防水注水系統有效控制獲得進而平穩，所以並無出現重置（Relocation）現象。因此，依據SAGs能有效控制爐心之完整性，反應爐最終並未失效（RPV failed）。於結果中顯示，使用SAGs為運作依據，與一般事故之序列比較其結果而言，較能減緩事故嚴重性並最終維持反應爐爐心之完整性。
關鍵字：電廠全黑事故,嚴重事故導則,消防水注水系統

關鍵字

消防水注水系統 ； 電廠全黑事故 ； 嚴重事故導則

並列摘要

The purpose of this study is to evaluate the postulate severe accidents scenarios of the Station Blackout (SBO) in the Lungmen Nuclear Power Plant (LMNPP). The methodology uses the MAAP 4.0.4 code - (the Modular Accident Analysis Program version 4.0.4), developed by the Fauske Associates, Incorporated (FAI), under the contract from the Electric Power Research Institute (EPRI).
Simulations of severe accidents will be modeled and effects of severe accidents among the cases using the plant-specific Severe Accident Guideline (SAGs) of LMNPP and the cases without them will be compared and discussed.
According to the Severe Accident Guideline (SAGs), only use the fire-water (AC-Independent Water Addition, ACIWA) begins to inject into reactor core, the modeling is about the scenarios of SBO accident and it according to inject time sensitivity to divided into four cases, analyze the core water flooding time was delayed, influence discussion to various data of the core, reveal in the result, lead the Severe Accident Guideline(SAGs) set up by simulation according to the serious accident, directed by core water flooding time was delayed, lead to core increase of pressure, serious damage to the fuel rods and too much inert gas will be let out, but based on Severe Accident Guideline(SAGs) control, core temperature, pressure were controlled and got effectively by fire water injection system control immediately then steady, so has not appeared Relocation Phenomenon.
The SAGs for the LMNPP were used for the postulate severe accidents scenarios of the SBO. The results obtained from this study indicated that implementation of the SAGs is useful to reduce the degree of severe accidents and maintain the completeness of reactor core

Keyword：Station Blackout, Severe Accident Guideline, AC-Independent Water Addition

並列關鍵字

Severe Accident Guideline ； AC-Indepe ； Station Blackout

參考文獻

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24.黃雅娟，“核一廠與核四廠之遇見暫態未急停事故分析”，

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