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Forced convection study with microporous channels and nanofluid: experimental and numerical

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Abstract

There is a growing demand for the removal of thermal energy from industrial applications. This paper investigates the heat transfer enhancement potential of microporous channels and nanofluid concentrations. The varying parameters of the experimental and numerical study are heat flux, permeability, and nanofluid concentration. The porosity that is used in the channels is 10 and 20 PPI. For the experimental and numerical studies, two concentrations are considered: 0.6% alumina (Al2O3) and distilled water. The study focuses on one flow rate, which is 6.309 × 10−5 m3 s−1. There are two different test blocks used: two and three microporous channels. The analysis of the average Nusselt number is considered, which determines the case that results in the optimal removal of thermal energy. The maximum average Nusselt number that is found is 135.5; the results are obtained from the three-channel test block with nanofluid with 0.6% alumina and 20 PPI inserts. It was found that the pressure drop can be considered negligible. A negligible pressure drop means that operating costs are minimal. Another observation is that the temperature distribution has optimal results when nanofluid with 0.6% alumina is used. Finally, the experimental and numerical studies are in good agreement with an average relative error of 3.3%, which is determined by analyzing the temperature distribution.

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Acknowledgements

The authors would like to acknowledge the support they received from the National Science and Engineering Research Council of Canada and Ryerson University, which made this research possible.

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  1. Ryerson University, 350 Victoria St, Toronto, ON, M5B2K3, Canada

    C. S. Delisle, C. A. Welsford & M. Z. Saghir

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  1. C. S. Delisle
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  2. C. A. Welsford
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  3. M. Z. Saghir
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Correspondence to C. S. Delisle.

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Delisle, C.S., Welsford, C.A. & Saghir, M.Z. Forced convection study with microporous channels and nanofluid: experimental and numerical. J Therm Anal Calorim 140, 1205–1214 (2020). https://doi.org/10.1007/s10973-019-09175-8

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  • DOI: https://doi.org/10.1007/s10973-019-09175-8

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