Wall temperature prediction in annular geometry during post-dryout heat transfer

被引:0
|
作者
Anghel, Ionut G. [1 ]
Anglart, Henryk [1 ]
机构
[1] Royal Inst Technol KTH, Roslagstullsbacken 21, S-10691 Stockholm, Sweden
来源
JOURNAL OF POWER TECHNOLOGIES | 2014年 / 94卷 / 05期
关键词
Post-dryout; Obstacle effect; Annular geometry; Heat transfer;
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
In this paper a new approach to predict wall temperature during post-dryout heat transfer in annuli with flow obstacles is presented. The proposed approach takes into account the obstacle specifics and location in the channel to determine the onset of post-dryout patch. The wall temperature in the dry patch area is predicted from a correlation that takes into account the developing post-dryout heat transfer regime. The method is applied to post-dryout conditions in an annulus with pin spacers and achieves a significant improvement in prediction accuracy compared to other reference methods.
引用
收藏
页码:1 / 7
页数:7
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