For heat transfer analysis, the thermal properties of the heat transfer fluid is aninterestingtopic of current research. The hybrid nanofluids have better effective thermal conductivity, which is being used to improve the heat transfer rate. This experimental study presents the heat transfer characteristic of aqueous Zinc Ferrite/water (ZnFe₂O₄/water) nanofluids. ZnFe₂O₄/waternanofluids were prepared, suspending hybrid nanoparticles in the basefluids with 0.01 wt% CTAB as surfactant with different weight concentrations i.e., (0.02, 0.05, 0.1, 0.2, 0.5 wt%). Detailed surface properties of ZnFe₂O₄/waternanofluids were characterized using EDS, TEM, and UV–vis spectroscopy. Experiments were conducted to find out the viscosity, thermal conductivity,and convective heat transfer coefficient of ZnFe₂O₄/waternanofluids using laminar flow in a tube geometry using constant heat flux (CHF) boundary condition. Results revealed 11.8% improvement in the thermal conductivity for ZnFe₂O₄/waternanofluids, whereas an enhancement of 42.99% was observed in the convective heat transfer coefficient using 0.5 wt% of the nanofluids.The thermal conductivity results indicate that ZnFe₂O₄/waternanofluids have higher thermal conductivity for all the studied nanofluids. From the experimental data, new correlations for finding the thermophysical properties and Nusselt number has been proposed. The novel correlation established will help scientists and engineers for further insight into future research.

对于传热分析，传热流体的热性质是当前研究的一个有趣话题。杂化纳米流体具有更好的有效导热率，其被用于提高传热速率。该实验研究提出了水性铁酸锌/水（ZnFe ₂ O ₄ /水）纳米流体的传热特性。制备ZnFe ₂ O ₄ /水纳米流体，将杂化纳米颗粒悬浮在具有0.01重量％CTAB作为不同重量浓度即（0.02、0.05、0.1、0.2、0.5重量％）的表面活性剂的基础流体中。ZnFe ₂ O _4的详细表面特性/水纳米流体使用EDS，TEM和UV-vis光谱进行了表征。进行了实验，以层流在恒定热通量（CHF）边界条件下的管几何形状中发现了ZnFe ₂ O ₄ /水纳米流体的粘度，热导率和对流传热系数。结果表明，ZnFe ₂ O ₄ /水纳米流体的导热系数提高了11.8％，而使用0.5 wt％的纳米流体的对流传热系数提高了42.99％。导热系数结果表明ZnFe ₂ O ₄对于所有研究的纳米流体，水/纳米流体都具有较高的热导率。从实验数据，提出了寻找热物理性质和努塞尔数的新的相关性。建立的新颖相关性将帮助科学家和工程师进一步了解未来的研究。