每年出版 8 期
ISSN 打印: 1065-5131
ISSN 在线: 1563-5074
Indexed in
INVESTIGATION OF HEAT TRANSFER CHARACTERISTICS OF MGMNNI/DIW-BASED NANOFLUIDS FOR QUENCHING IN INDUSTRIAL APPLICATIONS
摘要
Effective thermal conductivity of nanofluids is measured using the KD2 Pro method and the viscosity measurements obtained by the Brookfield DV-E viscometer. The tested fluids contain nanoparticles of MgMnNiFe2O4 dispersed in DIW as a base fluid. Experimental results show that the thermal conductivities of nanofluids are higher than those of the base fluids. We demonstrate that the predicted thermal conductivities of nanofluids in existing models are much lower than our measured data. A possible mechanism contributing to the enhancement of nanofluid thermal conductivity is discussed. The effects of Reynolds number, Nusselt number, Prandtl number, and nanoparticle concentration on heat transfer performance are also reported and discussed. Experimental results on thermophysical properties and convective heat transfer characteristics are compared with theoretical simulations based on assumptions regarding thermal and heat transfer enhancement for quenching in industrial applications.
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Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Additives for Gases and Liquids, in Electric Fields, Additives and Simultaneous Heat and Mass Transfer in Heat Transfer Enhancement, 2020. Crossref