Measurement and Model Correlation of Specific Heat Capacity of Water-Based Nanofluids With Silica, Alumina and Copper Oxide Nanoparticles
Author(s)
O'Hanley, Harrison F.; Buongiorno, Jacopo; Hu, Lin-wen; McKrell, Thomas J.; Hu, Lin-Wen
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Nanofluids are being considered for heat transfer applications. However, their thermo-physical properties are poorly known. Here we focus on nanofluid specific heat capacity. Currently, there exist two models to predict a nanofluid’s specific heat capacity as a function of nanoparticle concentration and material. Model I is a straight volume-weighted average; Model II is based on the assumption of thermal equilibrium between the particles and the surrounding fluid. These two models give significantly different predictions for a given system. Using differential scanning calorimetry, the specific heat capacities of water based silica, alumina, and copper oxide nanofluids were measured. Nanoparticle concentrations were varied between 5wt% and 50wt%. Test results were found to be in excellent agreement with Model II, while the predictions of Model I deviate very significantly from the data.
Date issued
2011-11Department
Massachusetts Institute of Technology. Department of Mechanical Engineering; Massachusetts Institute of Technology. Department of Nuclear Science and Engineering; MIT Nuclear Reactor LaboratoryJournal
Proceedings of the ASME 2011 International Mechanical Engineering Congress and Exposition (IMECE 2011)
Publisher
ASME International
Citation
O’Hanley, Harry, Jacopo Buongiorno, Thomas McKrell, and Lin-wen Hu. “Measurement and Model Correlation of Specific Heat Capacity of Water-Based Nanofluids With Silica, Alumina and Copper Oxide Nanoparticles.” ASME 2011 International Mechanical Engineering Congress and Exposition (IMECE 2011). In Volume 10: Heat and Mass Transport Processes, Parts A and B, 1209-1214.
Version: Author's final manuscript
ISBN
978-0-7918-5496-9