原子能科学技术2016，Vol.50Issue(10)：1756-1762,7.DOI:10.7538/yzk.2016.50.10.1756
2×2稠密棒束内超临界水的传热特性试验研究
Experimental Investigation on Heat Transfer Characteristics of Supercritical Water in 2 × 2 Tight Rod Bundle
吴刚 1潘杰 1毕勤成 2王汉2
作者信息
- 1. 西安石油大学石油工程学院，陕西西安 710065
- 2. 西安交通大学动力工程多相流国家重点实验室，陕西西安 710049
- 折叠
摘要
Abstract
Within the experimental parameters of pressure of 23‐28 M Pa ,mass flux of 350‐1 000 kg/(m2 ・s) and heat flux of 200‐1 000 kW/m2 ,heat transfer characteristics of supercritical water in a 2 × 2 rod bundle were experimentally investigated .The varia‐tions of circumferential wall temperature distribution were obtained ,and the reasons for this phenomenon were discussed .The effects of pressure ,mass flux and heat flux on heat transfer characteristics were investigated and the heat transfer deterioration which occurred at low mass flux condition was analyzed .The experimental results indicate that the circumferential wall temperature is non‐uniform ,the wall temperature in the corner sub‐channel is the highest ,whereas the central sub‐channel is the lowest . The wall <br> temperature difference is closely related to the non‐uniform cross‐sectional flow area . The heat transfer of supercritical water is weakened with the increase of heat flux or the decrease of mass flux .Deteriorated heat transfer occurs in the rod bundle w hen the heat flux to mass flux ratio increases to a certain level .关键词
稠密棒束/超临界水/周向壁温/传热恶化Key words
tight rod bundle/supercritical water/circumferential wall temperature/heat transfer deterioration分类
能源科技引用本文复制引用
吴刚,潘杰,毕勤成,王汉..2×2稠密棒束内超临界水的传热特性试验研究[J].原子能科学技术,2016,50(10):1756-1762,7.
