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个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:化工学院
学科:化学工程. 工程热物理
办公地点:化工学院 化工实验楼 D-309
联系方式:辽宁省大连市凌工路2号 大连理工大学化环生学部化工学院 116024
电子邮箱:xuehuma@dlut.edu.cn
Experimental Investigation of Oscillating Heat Pipe With Hybrid Fluids of Liquid Metal and Water
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论文类型:期刊论文
发表时间:2019-07-01
发表刊物:JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
收录刊物:SCIE、EI
卷号:141
期号:7
ISSN号:0022-1481
关键字:Oscillating heat pipe (OHP); oscillating motion; liquid metal; thermal performance
摘要:A new oscillating heat pipe (OHP) charged with hybrid fluids can improve thermal performance. The key difference in this OHP is that it uses room temperature liquid metal (Galinstan consisting of gallium, indium, and tin) and water as the working fluid. The OHP was fabricated on a copper plate with six turns and a 3 x 3 mm(2) cross section. The OHP with hybrid fluids as the working fluid was investigated through visual observation and thermal measurement. Liquid metal was successfully driven to flow through the OHP by the pressure difference between the evaporator and the condenser without external force. Experimental results show that while added liquid metal can increase the heat transport capability, liquid metal oscillation amplitude decreases as the filling ratio of liquid metal increases. Visualization of experimental results show that liquid metal oscillation position and velocity increase as the heat input increases. Oscillating motion of liquid metal in the OHP significantly increases the heat transfer performance at high heat input. The lowest thermal resistance of 0.076 degrees C/W was achieved in the hybrid fluids-filled OHP with a heat input of 420 W. We experimentally demonstrated a 13% higher heat transfer performance using liquid metal as the working fluid compared to an OHP charged with pure water.