摘要
螺旋管式直流蒸汽发生器结构紧凑、换热效率高,因此被广泛应用于先进小型堆设计中。目前常用的反应堆热工水力分析程序由于缺乏螺旋管的传热、阻力关系式,不适用于螺旋管螺旋管式直流蒸汽发生器的研究。本文对水在不同结构螺旋管内的传热、流动阻力特性进行实验研究,得出螺旋盘管直径对传热影响明显的结论,并根据实验数据拟合建立螺旋管传热及流动阻力关系式。基于实验拟合关系式以及成熟的热工水力计算模型,集成开发了专有螺旋管热工水力分析程序。对于软件的验证与确认,将程序计算结果与理论计算和实验测量的传热系数及流动压降进行对比,结果表明程序计算结果与理论计算值、实验值符合良好,本文建立的传热与阻力关系式及开发的螺旋管专用程序可用于螺旋管热工水力分析。
Because of the compact structure and high heat exchange efficiency,the helical coil once-through steam generator(HOTSG)is widely used in advanced small modular reactors.Present widely-used thermal-hydraulic analysis codes lack correlations of helical coil tubes,thus they cannot be applied to study the helical coil once-through steam generator.The heat transfer and flow resistance characteristics in helical coil tubes with different sizes are experimentally studied.The result shows that the coil diameter has obvious influence on heat transfer.The heat transfer and flow resistance correlations of helical coil tubes are established from experimental data.Based on these correlations,a thermal-hydraulic analysis code is developed for the helical coil once-through steam generator.The code verification and validation is carried out by comparison of the calculated heat transfer coefficient,pressure drop and the measured values.Good agreement is observed and shows that the correlations and the code are applicable to the thermal-hydraulic analysis of HOTSG.
作者
高雅心
邹悦
金德升
朱元兵
卢向晖
GAO Yaxin;ZOU Yue;JIN Desheng;ZHU Yuanbing;LU Xianghui(China Nuclear Power Research Institute Co.,Ltd.,Shenzhen of Guangdong Prov.518031,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2021年第4期703-711,共9页
Nuclear Science and Engineering
关键词
螺旋管
传热
流动阻力
实验研究
程序开发
Helical coil tube
Heat transfer
Flow resistance
Experimental study
Code development
