论文部分内容阅读
以体积浓度30%的乙二醇水溶液为工质,采用定热流加热方式,对槽宽0.3mm的4个深度不同的矩形截面涡旋微槽试件的换热性能进行了实验研究.试件所用材料为紫铜,每个试件上分布6个涡旋微槽.实验测量了不同工质流量,不同加热功率下涡旋微槽的换热性能,分析了微槽结构、工质流速对其换热性能的影响,拟合得到相应的换热实验关联式.与平直微槽的换热性能进行了对比,结果表明涡旋微槽散热器的换热性能优于平直微槽散热器.
The heat transfer performance of rectangular cross-section vortex microgrooves with different depths of 0.3mm and different depths of 0.3mm was experimentally studied by using constant volume flow rate of 30% ethylene glycol aqueous solution as the working fluid. The materials used are copper and six vortex microgrooves are distributed on each specimen.The heat transfer performance of vortex microgrooves is measured experimentally with different working fluid flow rates and heating powers.The effects of micro-groove structure and working fluid velocity on Heat exchange performance, fitting the corresponding correlation experiment of heat transfer.Compared with the heat transfer performance of the straight microgrooves, the results show that the heat transfer performance of the vortex microgrooves is better than that of the straight microgrooves .