RELAP5模擬AP1000 ERVC自然循環(huán)過程研究
發(fā)布時(shí)間:2019-05-11 05:09
【摘要】:壓力容器外部自然循環(huán)冷卻(ERVC)系統(tǒng)作為AP1000的非能動(dòng)安全系統(tǒng)之一,對(duì)熔融物堆內(nèi)滯留,阻止放射性物質(zhì)大規(guī)模釋放起到關(guān)鍵的作用。本文通過RELAP5程序針對(duì)AP1000的ERVC系統(tǒng)建立模型,進(jìn)行自然循環(huán)冷卻的物理過程模擬,并對(duì)加熱功率、冷卻水過冷度、安全殼壓力等關(guān)鍵參數(shù)進(jìn)行了敏感性分析。除此之外,本文還對(duì)分析模型進(jìn)行簡(jiǎn)化,并對(duì)比了兩個(gè)模型的計(jì)算結(jié)果,證明了簡(jiǎn)化的合理性。
[Abstract]:As one of the passive safety systems of AP1000, the natural circulation cooling (ERVC) system outside the pressure vessel plays a key role in the retention of molten materials and the prevention of large-scale release of radioactive materials. In this paper, the model of ERVC system of AP1000 is established by RELAP5 program, and the physical process simulation of natural circulation cooling is carried out, and the sensitivity of key parameters such as heating power, cooling water undercooling degree, containment pressure and so on is analyzed. In addition, the analysis model is simplified, and the calculation results of the two models are compared, and the rationality of the simplification is proved.
【作者單位】: 國(guó)核華清(北京)核電技術(shù)研發(fā)中心有限公司;
【基金】:國(guó)家重大科技專項(xiàng)嚴(yán)重事故機(jī)理及現(xiàn)象學(xué)研究課題
【分類號(hào)】:TL364
本文編號(hào):2474269
[Abstract]:As one of the passive safety systems of AP1000, the natural circulation cooling (ERVC) system outside the pressure vessel plays a key role in the retention of molten materials and the prevention of large-scale release of radioactive materials. In this paper, the model of ERVC system of AP1000 is established by RELAP5 program, and the physical process simulation of natural circulation cooling is carried out, and the sensitivity of key parameters such as heating power, cooling water undercooling degree, containment pressure and so on is analyzed. In addition, the analysis model is simplified, and the calculation results of the two models are compared, and the rationality of the simplification is proved.
【作者單位】: 國(guó)核華清(北京)核電技術(shù)研發(fā)中心有限公司;
【基金】:國(guó)家重大科技專項(xiàng)嚴(yán)重事故機(jī)理及現(xiàn)象學(xué)研究課題
【分類號(hào)】:TL364
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