ABSTRACT

An experimental study has been performed to analyze the heat transfer characteristics by impinging a hybrid nanofluid jet on horizontal-heated test surface. The Ag/ZnO nanoparticles are synthesized and dispersed in DI water Φ = 0.02% to 0.1% by volume. A set of experiments were performed to calculate heat transfer coefficient and boiling performance at varying Reynolds numbers ranging from 1769 to 8273 and different ratios of H/D. The experimental analysis reveals that there is 88.53% and 87.17% improvement in the heat transfer coefficient and boiling performance for Ag/ZnO hybrid nanofluid when it is compared with water at H/D = 3.5.

摘要

已经进行了一项实验研究，通过在水平加热的测试表面上撞击混合纳米流体射流来分析传热特性。Ag/ZnO 纳米颗粒合成并分散在去离子水中 Φ = 0.02% 至 0.1%（体积）。进行了一组实验以计算在不同雷诺数范围从 1769 到 8273 和不同 H/D 比率下的传热系数和沸腾性能。实验分析表明，在 H/D = 3.5 时，Ag/ZnO 混合纳米流体与水相比，传热系数和沸腾性能分别提高了 88.53% 和 87.17%。