The effects of using convergent, convergent-divergent and divergent conical wire coils in ethylene glycol and water mixture flow region on the augmentation of heat transfer are experimentally analyzed. Three different volumetric ratios (0:100), (20:80) and (40:60) of ethylene glycol and water, convergent, convergent-divergent and divergent conical wire coils with two different pitch ratios 2 and 3 are intended for the experiments. The experiments are conducted under the turbulent flow conditions Reynolds number ranging from 4627 to 25,099 and constant heat flux. The use of conical wire coils enhance both the heat transfer rate and fluid friction, whereas adding the ethylene glycol on pure water decreases the heat transfer rate and friction factor is slightly increased. The highest Nusselt number is obtained as 558 for the divergent conical wire coil with pitch ratio of two at Reynolds number of 22,846 in the case of using a fluid type with a (40:60) volumetric ratio. The highest performance evaluation criteria of 1.62 is achieved for the divergent wire coil insert P/D = 2 is used at lowest Reynolds number for Ethylene glycol:Water-0:100 fluid type. New correlations are modelled to predict the Nusselt number and friction factor. Therefore, making the currently investigated configurations a potential technique to increase the thermohydraulic performance of the engineering applications.

实验分析了在乙二醇和水混合物流动区域使用收敛、收敛-发散和发散锥形线圈对传热增强的影响。三种不同体积比 (0:100)、(20:80) 和 (40:60) 的乙二醇和水，具有两种不同节距比 2 和 3 的会聚、会聚-发散和发散锥形线圈用于实验. 实验是在雷诺数范围从 4627 到 25,099 和恒定热通量的湍流条件下进行的。锥形线圈的使用提高了传热率和流体摩擦力，而在纯水中加入乙二醇会降低传热率，摩擦系数略有增加。在使用体积比为 (40:60) 的流体类型的情况下，雷诺数为 22,846 时，螺距比为 2 的发散锥形线圈的最高努塞尔数为 558。1.62 的最高性能评估标准是在乙二醇:水-0:100 流体类型的最低雷诺数下使用的发散线圈插入件 P/D = 2 实现的。新的相关性被建模来预测努塞尔数和摩擦系数。因此，使当前研究的配置成为提高工程应用的热工水力性能的潜在技术。62 用于发散线圈插入件 P/D = 2 用于乙二醇:水-0:100 流体类型的最低雷诺数。新的相关性被建模来预测努塞尔数和摩擦系数。因此，使当前研究的配置成为提高工程应用的热工水力性能的潜在技术。62 用于发散线圈插入件 P/D = 2 用于乙二醇:水-0:100 流体类型的最低雷诺数。新的相关性被建模来预测努塞尔数和摩擦系数。因此，使当前研究的配置成为提高工程应用的热工水力性能的潜在技术。