Double pipe Heat exchangers are some of the important equipment which is seen in a variety of industrial applications. In the current study a new type of insert, namely Para-Winglet Tape inserts are investigated for thermal and flow behavior from Reynolds number 6000 to 30000. The Para-Winglet Tape inserts are investigated for three sets of pitches and para-inclinations. The inclusion of para-winglet tape on the tube has intensified the turbulent kinetic energy and has resulted in recirculation in-between the inserts. The arrangement of the para-winglet tape has proved their worthiness over the plain tube. The highest Nusselt number was obtained for Case9 at Reynolds number 30000 with an enhancement of 407% and the least was obtained by Case7 at Reynolds number 6000 with an enhancement of 88% compared to plain double pipe heat exchanger. The highest friction factor was obtained for Case3 at Reynolds number 30000 with an enhancement of 846% and the least was obtained by Case7 at Reynolds number 24000 with an enhancement of 286% compared to plain double pipe heat exchanger. The maximum and minium performance optimization index value of 2.69 and 1.09 was achieved for Case9 and Case1 at Reynolds number 30000 and 6000.

双管热交换器是在许多工业应用中都可以看到的一些重要设备。在当前的研究中，研究了一种新型的嵌件，即Para-Winglet嵌件，研究了雷诺数6000到30000的热和流动特性。研究了Para-Winglet嵌件，研究了三组螺距和副倾角。管上包含小翼小带，加剧了湍动能，并导致了嵌件之间的再循环。副翼小翼带的布置证明了它们在普通管上的价值。与普通双管换热器相比，在雷诺数为30000时Case9的Nusselt值最高，增加了407％，在雷诺数为6000时Case7的Nusselt值增加了88％。与普通双管换热器相比，在雷诺数为30000的情况下，Case3的摩擦系数最高，提高了846％，在雷诺数为24000的情况下，通过Case7的摩擦系数最低，与普通双管换热器相比，提高了286％。雷诺数为30000和6000的Case9和Case1的最大和最小性能优化指标值为2.69和1.09。