摘要
以混合堆次临界包层为研究对象,开展对竖直圆形通道的均匀加热和非均匀加热条件下的临界热流密度实验。基于均匀加热实验获得实验关系式,并通过数据统计规律的分析和与现有关系式的比较,验证本实验关系式的准确性和可靠性。以该实验关系式作为基础,比较周向非均匀加热效应对临界热流密度的影响。结果表明:偏心管形式的周向非均匀加热的临界热流密度受质量流速的影响不大,在低含汽率下低于均匀加热的预测结果,在高含汽率下高于均匀加热的预测结果;二者比值随含汽率呈线性关系。
In this paper, the critical heat flux （CHF） experiment in uniform heated and circumferential nonuniform heated vertical channels is developed for the sub-critical energy blanket in the fission-fusion hybrid energy system. The experiment forecast correlation, based on the critical heat flux experiment in the the uniform heated vertical channel, is obtained. The accuracy and reliability of these experiment correlations are proved by statistics analysis and comparison with the present correlations. Based on this experiment correlation, the effect of the circumferential nonuniform heating on the critical heat flux is compared. The experiment result shows that the effect of the mass flux on CHF in nonuniform heated condition is less than that in the uniform heated condition. The CHF of nonuniform channel is lower than that of the uniform channel while the quality is low, otherwise, is higher than that in the uniform channel while the quality is high. The rate of CHF in the nonuniform channel and the uniform channel is nearly linear with the quality.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2016年第1期38-42,共5页
Nuclear Power Engineering
关键词
混合能源系统
周向非均匀加热
临界热流密度
Hybrid energy system, Circumferential nonuniform heating, Critical heat flux
