摘要
本文对双孔直接接触冷凝进行了实验研究。实验的蒸汽质量流速范围为50~500 kg/(m 2·s),水箱温度范围为35~85℃。实验获得了压力脉动和高速摄像机的同步数据,重点研究分析了双孔对冷凝流型和压力脉动特性的影响。结果表明:单孔和双孔冷凝相图不同,孔数的变化导致冷凝相图流型界线的改变,且双孔造成冷凝的压力脉动强度和频率随热工参数变化的转折点提前发生。
Direct contact condensation through double holes was investigated experimentally in this paper.The experiment was conducted under the conditions of steam mass flux of 50-500 kg/(m^(2)·s)and the pool temperature of 35-85℃.The data of pressure pulsation and high speed video camera were obtained with perfect synchronization.Analysis and research were mainly focused on the influences of double holes on the characteristics of direct contact condensation.The results show that condensation regime maps of single hole and double holes are different.The number of holes results in the change of the regime transition boundary.Besides,the turning point of the pressure pulsation intensity and frequency of the direct contact condensation occurs in advance with the change of thermal parameters.
作者
叶亚楠
肖瑶
丛腾龙
张伟
顾汉洋
YE Yanan;XIAO Yao;CONG Tenglong;ZHANG Wei;GU Hanyang(School of Nuclear Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2021年第11期1984-1990,共7页
Atomic Energy Science and Technology
关键词
直接接触冷凝
双孔
压力脉动
direct contact condensation
double holes
pressure pulsation
