摘要
在系统压力p＝3～18MPa，质量流速G＝700～1400kg／m2·s，人口过冷度△Tsub＝30～120℃，热负荷qw＝0～6O0kW／m2，管径d＝12mm的参数范围内，研究了压力、质量流速、人口过冷度、进口节流、可压缩容积、热负荷及不对称热负荷对垂直并联营内高压汽水两相流密度波到不稳定性的起始点、周期和报价的影响，并与垂直单管内的密度波到不稳定性进行了对比分析。根据试验研究和量细分析，提出了预防密度波型脉动的话施，给出了计算脉动起始点的无困次经验关系式，为一体化反应堆蒸汽发生器、直流锅炉水冷壁等工业设备的设计与运行提供了可靠依据。
Within the system pressure p＝3～18MPa,mass velovity G＝700～1400kg/m2.s,inlet subcooled temperature △Tsub＝30～120℃,heat flux qw＝0～600kW/m2 and pipe di ameter d＝12mm,the influence of pressure,mass velocity,inlet subcooled temperature,inlet throttle,compressible volume,heat flux and nonsymmetric heat flux on the thresh old,period and amplitude of density wave oscillation(DWO)in vertical parallel pipes was studied and compared with the DWO in one vertical pipe.By the experimental investiga tion and dimensional analysis,the measures for preventing DWO and one dimensionless empirical correlation for prediction DWO's threshold were proposed for the design and op eration of integrated reactor steam generator and once-through boiler etc.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
1996年第3期245-249,共5页
Nuclear Power Engineering
关键词
汽水两相流
密度波型
蒸汽发生器
核反应堆
Parallel pipes Steam-water two-phase flow Density wave Oscillation Steam generator
