原子能科学技术2011，Vol.45Issue(11)：1317-1323,7.
基于矩形窄缝通道实验数据的DNB机理模型评价
DNB Mechanistic Model Assessment Based on Experimental Data in Narrow Rectangular Channel
摘要
Abstract
The departure from nucleate boiling (DNB) is important concerning about the safety of a PWR. Lacking assessment by experimental data points, it's doubtful whether the existing models can be used in narrow rectangular channels or not. Based on experimental data points in narrow rectangular channels, two kinds of classical DNB models, which include liquid sublayer dryout model (LSDM) and bubble crowding model (BCM), were assessed. The results show that the BCM has much wider application range than the LSDM. Several thermal parameters show systematical influences on the calculated results by the models. The performances of all the models deteriorate as the void fraction increases. The reason may be attributed to the geometrical differences between a circular tube and narrow rectangular channel.关键词
矩形窄缝通道/偏离泡核沸腾/模型评价Key words
narrow rectangular channel/ departure from nucleate boiling/ model assessment分类
能源科技引用本文复制引用
周磊,闫晓,黄善仿,黄彦平,肖泽军..基于矩形窄缝通道实验数据的DNB机理模型评价[J].原子能科学技术,2011,45(11):1317-1323,7.基金项目
中核集团青年科技创新团队资助项目 （）
