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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : "大连理工大学-大连斯频德”联合研究中心主任
性别：男
毕业院校：西安交通大学
学位：博士
所在单位：能源与动力学院
学科：热能工程
办公地点：大连理工大学西部校区知行楼420
联系方式：Tel: 13109836979 微信号：18642809658
电子邮箱：zhuxiaojing@dlut.edu.cn
Numerical investigation of flow and heat transfer in the sub-channel of an SCWR core with split-vanes
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论文类型：期刊论文
发表时间：2018-12-01
发表刊物：INTERNATIONAL JOURNAL OF LOW-CARBON TECHNOLOGIES
收录刊物：SCIE、Scopus
卷号：13
期号：4
页面范围：414-423
ISSN号：1748-1317
关键字：supercritical water; heat transfer enhancement; grid spacer with split-vanes; wall temperature
摘要：In this paper, the influence of split-vanes attached to the end of grid spacers on local flow and heat transfer was investigated at a pressure of 25 MPa, a mass rate of 1000 kg/m(2)s and a heat flux of 800 kW/m(2)K for the sub-channels of an supercritical water reactor core. The numerical results show that there are obviously different distributions of wall temperature in three regions. The circumferential heterogeneities of the heat transfer are evidently enhanced at the downstream of the grid spacers with split-vanes. Additionally, there is a phenomenon of weakened heat transfer at the downstream of the grid spacers in the large specific heat region.