Augmenting heat transfer performance in a heat exchanger with CeO2 nanofluids

被引：0
作者：
Sreenivasulu Reddy G. [1 ,2 ]
Kalaivanan R. [3 ]
Uday Kumar R. [2 ]
Krishna Varma K.P.V. [4 ]
机构：
[1] Department of Mechanical Engineering, Faculty of Engineering and Technology, Annamalai University, Annamalai Nagar
[2] Department of Mechanical Engineering, Mahatma Gandhi Institute of Technology, Telangana, Hyderabad
[3] Department of Mechanical Engineering, Annamalai University, Annamalai Nagar
[4] Department of Mechanical Engineering, Raghu Engineering College, Andhra Pradesh, Visakhapatnam
来源：
Materials Research Innovations | 2024年 / 28卷 / 01期
关键词：
Cerium Oxide nanofluid; double pipe heat exchanger; friction factor; Nusselt number;
D O I：
10.1080/14328917.2023.2213487
中图分类号：
学科分类号：
摘要：
This work aims at determining the heat transfer enhancement as well as friction losses of CeO2 nanofluids (NFs) in a double pipe heat exchanger. Cerium Oxide nanopowder was characterised by Energy-Dispersive X-ray Spectroscopy (EDX), X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Thermo-physical properties were measured at different temperatures and concentrations of the NF. Friction factor and Nusselt numbers were determined for various particles loading of 0.1%, 0.2% and 0.3%. Thermal conductivity enhanced by 7.92% to 12.9% than the based fluid. Experiments were performed for the range of Reynolds numbers of 2000 to 9000. Experimental results showed that for 0.3% concentration of NF, the maximum augmentation in the Nusselt number is 32.35% with a penalty of 1.18 times in terms of friction factor at a Reynolds number of 8720 in contrast to that of the carrier fluid. © 2023 Informa UK Limited, trading as Taylor & Francis Group.
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页码：19 / 31
页数：12
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