The improved vortex generation insert for heat exchanger is measured in this research paper. The wavy insert is adopted to enhance the performance of heat transfer in the tube. The wavy fin is produced by 3D printing and Acrylonitrile Butadiene Styrene (ABS) is used to be the fin's material. The experiment is performed to determine the thermal and fluid flow characteristic. The wavy fin is mounted on the top of tape to produce the flow circulations inside the tube. The Reynolds number from 4004 to 18,173 are selected to be the testing range. The geometric parameter, Amplitude to Height of wavy fin (A/h = 0.5, 1.0 and 1.5), is considered. The experimental investigation signify that the wavy insert with A/h of 1.5 can show higher Nusselt number ratio than A/h of 1.0 and 0.5 about 8% and 16%. The maximum heat transfer enhancement performance for using wavy insert with A/h of 1.5 is observed to be 1.51 at lowest Reynolds number of 4004. Furthermore, the empirically achieved correlations for friction factor and Nusselt number are expressed and compared with experimental data within ±5% deviation.

本文研究了改进的换热器涡流插入件。采用波浪形插入件以增强管中的传热性能。波浪状鳍片是通过3D打印制成的，丙烯腈丁二烯苯乙烯（ABS）被用作鳍片的材料。进行实验以确定热和流体流动特性。波浪状的鳍片安装在胶带的顶部，以在管子内部产生流动循环。从4004到18,173的雷诺数被选择为测试范围。考虑了几何参数，波浪鳍的高度到高度（A / h = 0.5、1.0和1.5）。实验研究表明，A / h为1.5的波浪形插入物可以显示出比1.0 / A / h的Nusselt数更高的比率，约为8％和16％。