论文部分内容阅读
针对一体化自然循环试验装置OSU-MASLWR开展的实验,采用系统分析程序RELAP5/MOD3.3进行分析计算。失水事故瞬态计算结果表明,堆芯有足够的冷却,加热元件在整个瞬态过程中温度不断降低。安全壳内出现热分层现象,通过安全壳壁从安全壳到周围水池的热传递速率足以除去堆芯的衰变热。与试验结果相比,程序基本预测了整个瞬态过程中各参数的变化情况。
For the experiment of integrated natural circulation test device OSU-MASLWR, the system analysis program RELAP5 / MOD3.3 was used for analysis and calculation. The transient calculation results of water loss accident show that the core has sufficient cooling, and the temperature of the heating element decreases continuously throughout the transient. Thermal delamination occurs within the containment and the rate of heat transfer from the containment to surrounding reservoirs through the containment walls is sufficient to remove decay heat from the core. Compared with the experimental results, the program basically predicted the changes of the parameters in the whole transient process.