Measurement and Model Validation of Nanofluid Specific Heat Capacity with Differential Scanning Calorimetry

By H. O’Hanley, J. Buongiorno, T. Mckrell, Lin-wen Hu. 2011

200 citations recorded by the source corpus.

Nanofluids are being considered for heat transfer applications; therefore it is important to know their thermophysical properties accurately. In this paper we focused on nanofluid specific heat capacity. Currently, there exist two models to predict a nanofluid 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 (DSC), a robust experimental methodology for measuring the heat capacity of fluids, the specific heat capacities of water-based silica, alumina, and copper oxide nanofluids were measured. Nanoparticle concentrations were varied between 5 wt% and 50 wt%. Test results were found to be in excellent agreement with Model II, while the predictions of Model I deviated very significantly from the data. Therefore, Model II is recommended for nanofluids.

Subfields: Biomedical Engineering, Mechanical Engineering, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/4695c2b0ad297d7e71385fc2810df832340c11a1

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. I. Mahbubul
2. R. Saidur
3. Patrice Estellé
4. S. Halelfadl
5. T. Maré
6. K. V. Sharma
7. Alpaslan Turgut
8. I. Tavman

In Mechanical Engineering

1. I. Mahbubul
2. R. Saidur
3. K. V. Sharma
4. Alpaslan Turgut
5. I. Tavman
6. S. Doğanay
7. H. Koca
8. Patrice Estellé

In Statistical and Nonlinear Physics

1. K. V. Sharma
2. Y. Sekhar

Citations in the corpus

• Effect of particle size on the viscosity of nanofluids: A review (2018, methodology): “It is based on the experimental data [82-85] from the literature.”
• Efficiency of carbon nanotubes water based nanofluids as coolants (2014, methodology): “With specific heat, the assumption of thermal equilibrium between the particles and the base fluid is generally assumed [36].”
• Study of viscosity and specific heat capacity characteristics of water-based Al2O3 nanofluids at low particle concentrations (2015, methodology): “It is observed from Figure 11 that the effective specific heat capacity increases with particle diameter which is in agreement with experimental results of Zhou and Ni [31] and others [11,51].”