本研究之主要目的為利用TRACE程式以及最新加入其中的CONTAN組件建立國聖電廠之分析模式，進行熱水流分析。透過此種分析模式的計算可以觀察到反應器與圍阻體交互影響的結果。本研究首先利用TRACE/CONTAN程式，建立國聖電廠之圍阻體分析模式。在成功建立國聖電廠圍阻體分析模式之後，根據FSAR第15章中各項假設，進行主蒸汽管破管(MSLB)之短程暫態模擬，並與FSAR、以及GOTHIC分析結果做比較。研究結果顯示在發生MSLB的情況之下，整體趨勢與FSAR、GOTHIC之分析結果大致相同。在完成圍阻體分析模式的建立及分析後，與本研究團隊原先已建立並完成驗證的國聖電廠反應器分析模式結合，進行MSLB，以及飼水控制器失效無旁通(FWCFNB)兩案例的模擬分析。由MSLB的結果可看出：圍阻體與反應器的交互運算與否確實會對結果造成影響。而由FWCFNB的結果可了解：面對爐心高壓的正常釋壓情況下，短期內對於圍阻體的危害甚小。目前已完成國聖電廠TRACE/CONTAN分析模式的建立，並運用在數項案例分析上。其結果可做為暫態發生時的相關評估；此外，本研究對於未來國內其他三座核電廠的圍阻體分析將會有一定程度的幫助。

The objectives of this thesis is to establish a Kuosheng Mark III containment model using CONTAN, which is coupled with Kuosheng Boiling Water Reactor (BWR) model using TRACE. The result of coupled calculation was different to other researches which calculate them separately.
The Kuosheng CONTAN analysis model was built up refers to FSAR and other related documents. After the model had been established, the Main Steamline Break (MSLB) transient was simulated and compared to FSAR’s results.
After the CONTAN analysis, the model was coupled to Kuosheng TRACE model, and two cases, MSLB, and Feedwater Controller Failure without Bypass (FWCFNB) were used to simulate the transient in containment. Both transients caused the injection of working fluid. However, MSLB transient let the working fluid go into the drywell, and FWCFNB let it go through the SRVs, ended in the suppression pool. The result of MSLB analysis was compared to FSAR and GOTHIC’s analysis, while FWCFNB (NPP part) was compared to FSAR. The trends of the Kuosheng TRACE/CONTAN model’s result were correspond to FSAR and GOTHIC’s, which were approximately the same.

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