THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

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Heat transfer performance and friction factor of various nanofluids in a double-tube counter flow heat exchanger

ABSTRACT
An experimental research was conducted to reveal effects of nanofluids on heat transfer performance in a double-tube heat exchanger. With nanoparticle weight fraction of 0.5%-2.0% and Reynolds number of 4500-14500, the flow resistance and heat transfer were analyzed by using six nanofluids, i.e., CuO-water, Al2O3-water, Fe3O4-water, ZnO-water, SiC-water, SiO2-water nanofluids. Results show that SiC-water nanofluid with a weight concentration of 1.5% provides the best improvement of heat transfer performance. 1.0% CuO-water and 0.5% SiO2-water nanofluids have lower friction factors in the range of Reynolds number from 4500 to 14500 compared to the other nanofluids. Based on test results of heat transfer performance and flow resistance, the 1.0% CuO-water nanofluid shows a great advantage due to a relatively high heat transfer performance and a low friction factor. Finally, empirical formulae of Nusselt numbers for various nanofluids were established based on experimental data tested in the double-tube heat exchanger.
KEYWORDS
PAPER SUBMITTED: 2020-03-23
PAPER REVISED: 2020-07-10
PAPER ACCEPTED: 2020-08-01
PUBLISHED ONLINE: 2020-09-26
DOI REFERENCE: https://doi.org/10.2298/TSCI200323280Z
REFERENCES
  1. Choi, S. U. S., Enhancing Thermal Conductivity of Fluids with Nanoparticle, Dev. Appl. Non-Newtonian Flows FED/MD, 231 (1995), 66, pp. 99-105
  2. Gupta, M., et al., Up to Date Review on the Synthesis and Thermophysical Properties of Hybrid Nanofluids. Journal of Cleaner Production, 190 (2018), pp. 169-192
  3. Ranjbarzadeh, R., et al., An Experimental Study on Stability and Thermal Conductivity of Water/Silica Nanofluid: Eco-Friendly Production of Nanoparticles, Journal of Cleaner Production, 206 (2019), pp. 1089-1100
  4. Jilte, R. D., et al., Cooling Performance of Nanofluid Submerged vs. Nanofluid Circulated Battery Thermal Management Systems, Journal of Cleaner Production, 240 (2019), pp. 118131.
  5. Nazari, S., et al., Performance Improvement of a Single Slope Solar Still by Employing Thermoelectric Cooling Channel and Copper Oxide Nanofluid: An Experimental Study, Journal of Cleaner Production, 208 (2019), pp. 1041-1052
  6. Athinarayanan, A. S. K., et al., Numerical Investigation of Heat Transfer from Flow over Square Cylinder Placed in a Confined Channel Using Cu-Water Nanofluid, Thermal Science, 23 (2019) 4, pp. 1367-1380
  7. Chen, Z. X., et al., Experimental Investigation on Heat Transfer Characteristics of Various Nanofluids in an Indoor Electric Heater, Renewable Energy, 147 (2020), pp. 1011-1018
  8. Belahmadi, E., and Bessaih R., Entropy Generation Analysis of Nanofluid Natural Convection in Coaxial Cylinders Subjected to Magnetic Field, Thermal Science, 23 (2018), 6A, pp. 3467-3479
  9. Duangthongsuk, W., and Wongwises S., An Experimental Study on the Heat Transfer Performance and Pressure Drop of TiO2-Water Nanofluids Flowing under a Turbulent Flow Regime, International Journal of Heat and Mass Transfer, 53 (2010), 1-3, pp. 334-344
  10. Abbasian Arani A. A., and Amani J., Experimental Study on the Effect of TiO2-Water Nanofluid on Heat Transfer and Pressure Drop, Experimental Thermal and Fluid Science, 42(2012), pp. 107-115
  11. Zhang, H. C., et al., Flow and Heat Transfer Characteristics of Nanofluids in Sudden Expansion Structure Based on SLA Method, Thermal Science, 23 (2019), 3A, pp. 1449-1455
  12. Hussein, A. M., Thermal Performance and Thermal Properties of Hybrid Nanofluid Laminar Flow in a Double Pipe Heat Exchanger, Experimental Thermal and Fluid Science, 88 (2017), pp. 37-45
  13. Pak, B. C., and Cho Y. I., Hydrodynamic and Heat Transfer Study of Dispersed Fluids with Submicron Metallic Oxide Particles, Experimental Heat Transfer, 11 (1998), pp. 151-170
  14. Xuan Y. M., and Roetzel W., Conceptions for Heat Transfer Correlation of Nanofluids, International Journal of Heat and Mass Transfer, 43 (2000), pp. 3701-3707
  15. Moffat, R. J., Describing the Uncertainties in Experimental Results, Experimental Thermal and Fluid Science, 1(1988), pp. 3-17
  16. Naphon, P., et al., Tube Side Heat Transfer Coefficient and Friction Factor Characteristics of Horizontal Tubes with Helical Rib, Energy Conversion and Management, 47 (2006), pp. 3031-3044