摘要
对环周进汽型变截面通道内超音速汽液两相流升压装置进行了系统的实验研究,实验中进汽压力为0.15～0.4MPa,进水压力为0.2～0.6MPa,汽水面积比为0.5～9.0。实验结果分析表明,装置的升压性能随汽水面积比的增加先上升后降低。最佳面积比随进汽压力的增加而减小,随进水压力的增加而增加。同时对装置的耗汽性能进行了分析,装置的升压性能随耗汽率的增加也呈现出先上升后降低的趋势。最佳耗汽率随进水压力的增加而降低,随进汽压力的增加而增加。
Steam injector with central steam nozzle arrangement is investigated experimentally.The inlet steam and water pressure are in the range of 0.15～0.4 MPa and 0.2～0.6 MPa,respectively,and the steam nozzle to water nozzle area ratio is in the range of 0.5～9.0.The results indicate that the lifting-pressure performance increases first,and then decreases with the area ratio.The optimal value of area ratio increases with inlet water pressure and decreases with inlet steam pressure.Moreover, the steam consumption rate of steam is studied.An optimal value of steam consumption rate is also found,and it increases with inlet steam pressure and decreases with inlet water pressure.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2011年第5期783-786,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.51006081
No.50821064)
国家重点基础研究计划项目(973)(No.2009CB219803)
关键词
超音速
两相流
升压系数
耗汽率
supersonic
two-phase flow
lifting-pressure coefficient
steam consumption rate
