ERDEM ÇİFTÇİ, Adnan SÖZEN

A Numerical Study on Performance Improvement in Boiling Heat Transfer via Dichloromethane-Based Nanofluid Utilization

Nanofluids are colloidal suspensions and have been utilized frequently in heat transfer implementations ranging from heating to cooling. In this study, for numerically specifying the influence of nanoparticle addition inside the base fluid on pool boiling heat transfer, a series of numerical analysis were performed by using hexagonal boron nitride and dichloromethane as nanoparticle and base fluid material, respectively. The nanofluid solution was prepared by doping hexagonal boron nitride nanoparticles into the dichloromethane at the rate of 1.0% (vol.) and Sodium Dodecyl Benzene Sulfonate was added into this solution to prevent nanoparticle compilation during operation. Computational Fluid Dynamics (CFD) approach was preferred and ANSYS Fluent software was used for numerical analysis. In order to be able to make comparison, analysis was performed both dichloromethane and hexagonal boron nitride nanoparticles containing dichloromethane, i.e. nanofluid, solutions. Vapour volume fractions, velocity vectors and contours for each working fluid were determined and discussed.

Anahtar Kelimeler:

Pool boiling, nanofluid, hexagonal boron nitride, Computational Fluid Dynamics

A Numerical Study on Performance Improvement in Boiling Heat Transfer via Dichloromethane-Based Nanofluid Utilization

Keywords:

Pool boiling, Nanofluid, hexagonal boron nitride, Computational Fluid Dynamics,

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Sözen, A., Menlik, T., Gürü, M., Irmak, A. F., Kılıç, F. and Aktaş, M., “Utilization of fly ash nanofluids in two-phase closed thermosyphon for enhancing heat transfer”, Experimental Heat Transfer, 29(3): 337–354, (2016).
Ham, J., Kim, H., Shin, Y. and Cho, H., “Experimental investigation of pool boiling characteristics in Al2O3 nanofluid according to surface roughness and concentration”, International Journal of Thermal Sciences, 114: 86-97, (2017).
Ham, J. and Cho, H., “Theoretical analysis of pool boiling characteristics of Al2O3 nanofluid according to volume concentration and nanoparticle size”, Applied Thermal Engineering, 108: 158-171, (2016).
Ebrahimian, M. and Ansarifar, G. R., “Investigation of the nano fluid effects on heat transfer characteristics in nuclear reactors with dual cooled annular fuel using CFD (Computational Fluid Dynamics) modelling”, Energy, 98: 1-14, (2016).
Shoghl, S. N., Bahrami, M. and Moraveji, M. K. “Experimental investigation and CFD modeling of the dynamics of bubbles in nanofluid pool boiling”, International Communications in Heat and Mass Transfer, 58: 12-24, (2014).
Afshari, F., Zavaragh, H.G. and Di Nicola, G. “Numerical analysis of ball-type turbulators in tube heat exchangers with computational fluid dynamic simulations”, International Journal of Environmental Science and Technology, 16(7): 3771-3780, (2018).
Khanlari, A., Sözen, A. and Variyenli, H.İ., “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, (2019).
Khanlari, A., Sözen, A., Variyenli, H. İ. and Gürü, M., “Comparison between heat transfer characteristics of TiO2/deionized water and kaolin/deionized water nanofluids in the plate heat exchanger”, Heat Transfer Research, 50(5): 435-450, (2018).
Sosnowski, M., Krzywanski, J., and Gnatowska, R., “Polyhedral meshing as an innovative approach to computational domain discretization of a cyclone in a fluidized bed CLC unit” in EPJS Web of Conferences, 14: 01027, (2017).
Sosnowski, M., Krzywanski, J., Grabowska, K., and Gnatowska, R., “Polyhedral meshing in numerical analysis of conjugate heat transfer” in EPJ Web of Conferences, 180: 02096, (2017).
Sözen A., Gürü, M., Khanlari, A. and Çiftçi, E., “Experimental and numerical study on enhancement of heat transfer characteristics of a heat pipe utilizing aqueous clinoptilolite nanofluid”, Applied Thermal Engineering, 160: 114001, (2019).
Su, J., Gu, Z., Chen, C., and Xu, X.Y., “A two layer mesh method for discrete element simulation of gas particle systems with arbitrarily polyhedral mesh”, International Journal for Numerical Methods in Engineering, 103(10): 759-780, (2015).
Ansys, “ANSYS Fluent theory guide”, Canonsburg: ANSYS Inc., (2017).