可再生能源2017，Vol.35Issue(6)：833-840,8.
DSG吸热管内插入扭带的汽水动力学数值模拟
Numerical simulation for steam and water dynamics in absorber tubes with twisted-tape insert of DSG system
摘要
Abstract
Numerical simulations were conducted to investigate the steam and water dynamics in absorber tubes with twisted-tape insert of DSG system in the Eulerian multiphase flow model. The numerical model took the effect of non-uniform heat flux on the surface of DSG absorber tube into account, analyzed the distribution of steam and water, wall temperature and gradient of wall temperaturein absorber tubes with the twisted-tape inserted. The results show that: the distribution ofthe steam and water is relatively uniform, disrupting the stratified flow patterninabsorber tubeswith twisted-tape insert. Both the circumferential wall temperature and gradient of wall temperature all decreases, and the circumferential wall temperature decreased 12.8%. The radial wall temperature and radial gradient of wall temperature decreased 14.4% and 30.9%, respectively, at thecircumferential angle=120 °, the distribution ofthe wall temperaturebemore uniforminabsorber tubeswith twisted-tape insert of DSG system.关键词
插入扭带/汽水两相分布/壁面温度/壁面温度梯度/数值模拟Key words
twisted-tape insert/distribution of the steam and water/wall temperature/gradient of wall temperature/numerical simulation分类
能源科技引用本文复制引用
嵇道峰,陶汉中,张红,蒋川..DSG吸热管内插入扭带的汽水动力学数值模拟[J].可再生能源,2017,35(6):833-840,8.基金项目
江苏省太阳能技术重点实验室开放基金(JPKLSST201505). （JPKLSST201505）
