核动力工程
覈動力工程
핵동력공정
NUCLEAR POWER ENGINEERING
2001年
2期
122-126
,共5页
压水堆%失水事故%冷凝回流%阻液%压降
壓水堆%失水事故%冷凝迴流%阻液%壓降
압수퇴%실수사고%냉응회류%조액%압강
进行了单根U型管内蒸汽冷凝回流实验。U型管的内径为20mm，总高度为4.1m和7.0m两种。在系统压力0.1～6.0MPa、蒸汽质量流速4～45kg/m2·s、二次侧进口冷却水温度20～196℃的范围内，研究了U型管内蒸汽冷凝回流的流动及其压降特性。
進行瞭單根U型管內蒸汽冷凝迴流實驗。U型管的內徑為20mm，總高度為4.1m和7.0m兩種。在繫統壓力0.1～6.0MPa、蒸汽質量流速4～45kg/m2·s、二次側進口冷卻水溫度20～196℃的範圍內，研究瞭U型管內蒸汽冷凝迴流的流動及其壓降特性。
진행료단근U형관내증기냉응회류실험。U형관적내경위20mm，총고도위4.1m화7.0m량충。재계통압력0.1～6.0MPa、증기질량류속4～45kg/m2·s、이차측진구냉각수온도20～196℃적범위내，연구료U형관내증기냉응회류적류동급기압강특성。
Reflux condensation is studied in single inverted U-tubes. The experiments are conducted with two different tube lengths: 4. lm and 7.0m. The I. D. of the U-tubes is 20mm. Under the pressure range of 0.1～6.0MPa, steam flow rate of 4～45kg/m2·s and inlet cooling water temperature of 20～196℃, the flow patterns and pressure drop characteristics of reflux condensation are investigated.
