Thermal Performance Improvement of the Heat Pipe by Employing Dolomite/Ethylene Glycol Nanofluid

Duygu Yilmaz Aydin  -  Chemical Engineering Department, Gazi University, Ankara, Turkey
Metin Gürü  -  Chemical Engineering Department, Gazi University, Ankara, Turkey
Adnan Sözen  -  Energy Systems Engineering Department, Gazi University, Ankara, Turkey
*Erdem Çiftçi orcid scopus  -  Energy Systems Engineering Department, Gazi University, Ankara, Turkey
Received: 16 Oct 2019; Revised: 5 Jan 2020; Accepted: 28 Jan 2020; Published: 18 Feb 2020; Available online: 15 Feb 2020.
Open Access Copyright (c) 2020 International Journal of Renewable Energy Development

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Section: Original Research Article
Language: EN
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In heat transfer applications, heat pipes are widely- preferred because of some characteristics such as low cost, being able to be produced in any size and low maintenance cost make them superior. Moreover, the working fluid to be employed substantially affects the heat transfer characteristics of a heat pipe. In this paper, effects of nanoparticle addition into the ethylene glycol on heat pipe’s thermal performance were analysed experimentally. Every test was done using two variant working fluids, ethylene glycol and dolomite nanoparticles-doped ethylene glycol, respectively. Dolomite nanoparticles (2% by weight) and Sodium Dodecyl Benzene Sulfonate (0.5% by weight) were doped into the ethylene glycol while preparing the dolomite/ethylene glycol nanofluid. After filling in the heat pipe, experiments were realized under changing working conditions. Using experimental data, efficiency and thermal resistance of the heat pipe were examined. Viscosity of the each working fluid was determined. The contact angle –wettability measurements were also performed to specify the effects of surface active agent addition. The obtained findings revealed that nanoparticle inclusion inside the base fluid, i.e. ethylene glycol, improved the thermal performance (efficiency) and decreased the heat pipe’s thermal resistance substantially. ©2020. CBIORE-IJRED. All rights reserved
Ethylene glycol; dolomite; nanofluid; efficiency; thermal resistance

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  1. Baïri, A. and Laraqi, N. (2019) Experimental quantification of natural convective heat transfer within annulus space filled with a H2O-Cu nanofluid saturated porous medium. Application to electronics cooling. Experimental Heat Transfer, 32(4), 364-375.
  2. Bang, I.C. and Chang, S.H. (2005) Boiling heat transfer performance and phenomena of Al2O3-water nano-fluids from a plain surface in a pool. International Journal of Heat and Mass Transfer, 48(12), 2407–2419.
  3. Chen, Y-J., Wang, P.-Y., Liu, Z.-H. and Li, Y.-Y. (2013) Heat transfer characteristics of a new type of copper wire-bonded flat heat pipe using nanofluids. International Journal of Heat and Mass Transfer, 67, 548-559.
  4. Dagdevir, T., Keklicioglu, O. and Ozceyhan, V. (2019) The effect of chamfer length on thermal and hydraulic performance by using Al2O3-water nanofluid through a square cross-sectional duct. Heat Transfer Research, 50(12), 1183-1204.
  5. Das; S.K., Putra, N., Thiesen, P. and Roetzel, W. (2003) Temperature Dependence of Thermal Conductivity Enhancement for Nanofluids. Journal of Heat Transfer-Transactions of the ASME, 125(4), 567-574.
  6. Ghanbarpour, M., Nikkam, N., Khodabandeh, R. and Toprak, M.S. (2015) Improvement of heat transfer characteristics of cylindrical heat pipe by using SiC nanofluids. Applied Thermal Engineering, 90, 127-135.
  7. Gürü, M., Sözen A., Karakaya, U. and Çiftçi, E. (2019) Influences of bentonite-deionized water nanofluid utilization at different concentrations on heat pipe performance: an experimental study. Applied Thermal Engineering, 148, 632-640.
  8. Hassan, M. I., Alzarooni, I. A. and Shatilla, Y. (2015). The effect of water-based nanofluid incorporating Al2O3 nanoparticles on heat pipe performance. Energy Procedia, 75, 3201-3206.
  9. Khanlari, A., Sözen, A. and Variyenli, H.İ. (2019) Simulation and experimental analysis of heat transfer characteristics in the plate type heat exchangers using TiO2/water nanofluid. International Journal of Numerical Methods for Heat & Fluid Flow, 29(4), 1343-1362.
  10. Kim, K.M. and Bang, I.C. (2015) Effects of graphene oxide nanofluids on heat pipe performance and capillary limits. International Journal of Thermal Sciences, 100, 346-356.
  11. Lin, J.Z., Xia, Y. and Ku, X.K. (2015) Flow and heat transfer characteristics of nanofluids containing rod-like particles in a turbulent pipe flow. International Journal of Heat and Mass Transfer, 93, 57-66.
  12. Ma, H.B., Wilson, C., Yu, Q., Park, K, Choi, U.S. and Tirumala, M. (2006) An experimental investigation of heat transport capability in a nanofluid oscillating heat pipe. Journal of Heat Transfer-Transactions of the ASME, 128(11), 1213-1216.
  13. Malekan, M., Khosravi, A., Goshayeshi, H.R., Assad M.E.H. and Garcia Pabon, J.J. (2019) Thermal resistance modeling of oscillating heat pipes for nanofluids by artificial intelligence approach. Journal of Heat Transfer-Transactions of the ASME, 141(7), 072402(1-12).
  14. Ozdemir, M.B. and Ergun M.E. (2019) Experimental and numerical investigations of thermal performance of Al2O3/water nanofluid for a combi boiler with double heat exchangers. Journal of Numerical Methods for Heat Fluid Flow, 29(4), 1300-1321.
  15. Sadeghinezhad, E., Mehrali, M., Rosen, M.A., Akhiani, A.R., Latibari, S.T., Mehrali, M. and Metselaar, H.S.C. (2016) Experimental investigation of the effect of graphene nanofluids on heat pipe thermal performance. Applied Thermal Engineering, 100, 775-787.
  16. Sözen, A., Çiftçi, E., Keçel, S., Gürü, M., Variyenli, H.İ. and Karakaya, U. (2018) Usage of diatomite-containing nanofluid as the working fluid in a wickless loop heat pipe: experimental and numerical study. Heat Transfer Research, 49(17), 1721–1744.
  17. Sözen, A., Khanlari, A. and Çiftçi, E. (2019a) Experimental and numerical investigation of nanofluid usage in a plate heat exchanger for performance improvement. International Journal of Renewable Energy Development, 8(1), 27-32.
  18. Sözen, A., Khanlari, A. and Çiftçi, E. (2019b) Heat transfer enhancement of plate heat exchanger utilizing kaolin-including working fluid. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 233(5), 626-634.
  19. Sözen, A., Variyenli, H.İ., Özdemir, M.B. and Gürü, M. (2016) Improving the thermal performance of parallel and cross-flow concentric tube heat exchangers using fly-ash nanofluid, Heat Transfer Engineering, 37, 805–813.
  20. Tharayil, T., Asirvatham, L.G., Ravindran, V. and Wongwises, S. (2015) Thermal performance of miniature loop heat pipe with graphene–water nano fluid. International Journal of Heat and Mass Transfer, 93, 657-968.
  21. Venkatachalapathy, S., Kumaresan, G. and Suresh, S. (2015) Performance analysis of cylindrical heat pipe using nanofluids – An experimental study. International Journal of Multiphase Flow, 72, 188-197.