压力容器2013，Vol.30Issue(3)：1-4,14,5.DOI:10.3969/j.issn.1001-4837.2013.03.001
竖直管内超临界二氧化碳局部对流换热研究
Research of Local Convection Heat Transfer of CO2 at Supercritical Pressures in a Vertical Tube
摘要
Abstract
Convection heat transfer of supercritical pressure CO2 in vertical tube was investigated, the changes of physical property near critical point of supercritical carbon dioxide, the effect of inlet pressure, flow direction and imported Re on heat transfer coefficient. The results show that the physical property changes are very violently around the critical point, especially to the specific heat of carbon dioxide. It also concludes that inlet pressure of carbon dioxide have small influence on temperature of the thermal fluid, but larger influence on heat transfer coefficient. The effect of flow direction of thermal fluid on heat transfer coefficient is not too large. The effect of Re number on the heat transfer coefficient is more obvious.关键词
超临界二氧化碳/对流换热/数值模拟Key words
supercritical CO2 / convection transfer coefficient/ numerical simulation分类
机械制造引用本文复制引用
杨凤叶,王珂,刘彤,赵鹏飞..竖直管内超临界二氧化碳局部对流换热研究[J].压力容器,2013,30(3):1-4,14,5.基金项目
国家自然科学基金资助项目(51076145) （51076145）
