CAJ | 학술논문

为研究核电厂中ADS‐4卸压夹带过程，以AP1000核电厂为原型设计建造了ADS‐4喷放卸压试验回路ADET EL。用高速摄像仪拍摄夹带起始和夹带率的试验过程，将试验数据与现有试验数据和模型进行对比。结果表明：ADETEL试验数据和其他试验数据及理论模型之间存在较大差异；RELAP5和ATLATS的夹带率模型不能准确估算AP1000核电厂中的ADS‐4夹带量；当热管段内液位较低时，夹带量会随热管段内液位降低而迅速减小；夹带起始在小支管‐主管直径比（d／D）工况下更容易发生；在相同的热管段相对液位下，A P1000中ADS‐4支管内液体的夹带率较A P600的低。
위연구핵전엄중ADS‐4사압협대과정，이AP1000핵전엄위원형설계건조료ADS‐4분방사압시험회로ADET EL。용고속섭상의박섭협대기시화협대솔적시험과정，장시험수거여현유시험수거화모형진행대비。결과표명：ADETEL시험수거화기타시험수거급이론모형지간존재교대차이；RELAP5화ATLATS적협대솔모형불능준학고산AP1000핵전엄중적ADS‐4협대량；당열관단내액위교저시，협대량회수열관단내액위강저이신속감소；협대기시재소지관‐주관직경비（d／D）공황하경용역발생；재상동적열관단상대액위하，A P1000중ADS‐4지관내액체적협대솔교A P600적저。
The ADS‐4 depressurization and entrainment test loop (ADETEL ) scaled with AP1000 as the prototype was constructed to investigate the entrainment process at the ADS‐4 tee branch line .The experimental phenomenon of the onset of entrainment and the entrainment rate were recorded by a high speed camera .The data were obtained and compared with the existing data and correlations .The results show that large dis‐crepancy between ADETEL experimental data and available data exists .RELAP5 and ATLATS correlations can not estimate the entrainment quality in AP1000 accurately . The entrainment rate declines rapidly with the decrease of liquid level in hot leg when the liquid level is low .T he onset of entrainment is more likely to happen in smaller d/D (diameter ratio of branch to hot leg ) conditions .The ADS‐4 entrainment rate in AP1000 is lower than that in AP600 at the same dimensionless hot leg liquid level .