CAS OpenIR  > 研究所(批量导入)
3-D NUMERICAL SIMULATION OF THE VAPOR-LIQUID FLOW AT THE SHELL SIDE OF SHELL-AND-TUBE HEAT EXCHANGERS
Xiao, Q; Yang, N; Zhao, ZX; Dai, CH; Wu, J; Bai, F; Wang, JR; Wei, ZG; Tao, M
2016
会议名称24th International Conference on Nuclear Engineering
会议录名称PROCEEDINGS OF THE 24TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING, 2016, VOL 4
会议日期JUN 26-30, 2016
会议地点Charlotte, NC
摘要

The boiling vapor-liquid flow at the shell side of shell-and tube heat exchangers was simulated by Euler-Euler transient 3D method in this paper. The mass and heat transfers between the two-phase fluid and heated wall for the subcooled boiling phenomenon were described by the Rensselaer Polytechnic Institute model (RPI model), while the steam condensation within the subcooled liquid was described by the Lee model. Firstly, different turbulence and interfacial force models were evaluated by comparing with the experimental data of Bartolomej (1982). It was found that the turbulence models have minor influence on the temperature and vapor volume fraction distributions. As the bubble size in the subcooled boiling process is small (usually <1 mm), the velocity slip between the vapor bubbles and the liquid is not so important. The simulation results using different drag force models are similar, and the Tomiyama model offers relatively better predictions. The non-drag forces could not significantly improve the accuracy in our simulations. Then the gas-liquid' boiling flow at the shell side of shell-and-tube heat exchangers was then simulated. It was found that the water temperature increases almost linearly near the inlet zone, and the increase speed was slowed down when the bulk temperature approached to the saturated point as the boiling process happened more frequently and consumed much heat. The heat exchangers with the triangle and square configurations have similar temperature and vapor distributions. Further analyses for those two kinds of tube configurations are needed.

关键词Bubble-column Steam-generator Turbulence Models Cfd Prediction Secondary-side Internals Bundles Forces
WOS记录号WOS:000387190900005
引用统计
文献类型会议论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22554
专题研究所(批量导入)
推荐引用方式
GB/T 7714
Xiao, Q,Yang, N,Zhao, ZX,et al. 3-D NUMERICAL SIMULATION OF THE VAPOR-LIQUID FLOW AT THE SHELL SIDE OF SHELL-AND-TUBE HEAT EXCHANGERS[C],2016.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
3-D NUMERICAL SIMULA(1951KB)会议论文 开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Xiao, Q]的文章
[Yang, N]的文章
[Zhao, ZX]的文章
百度学术
百度学术中相似的文章
[Xiao, Q]的文章
[Yang, N]的文章
[Zhao, ZX]的文章
必应学术
必应学术中相似的文章
[Xiao, Q]的文章
[Yang, N]的文章
[Zhao, ZX]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 3-D NUMERICAL SIMULATION OF THE VAPOR-LIQUID FLOW AT THE SHELL SIDE OF SHELL-AND-TUBE HEAT EXCHANGERS.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。