Numerical investigation of natural convection in an inclined wavy solar collector containing a nanofluid
DOI:
https://doi.org/10.21152/1750-9548.14.2.115Abstract
The present paper gives a numerical study of natural convection heat transfer inside the inclined wavy solar collectors containing nanofluid in Bechar region. Bechar is located in the southwest of Algeria and belongs to the semi-arid zone. The solar deposit of this city corresponds to an angle of inclination of a=37°.The collector has a wavy absorber and cover. The inclined corrugated walls are maintained at constant temperature but different values. The vertical walls are assumed to be adiabatic. The nanofluid used is Al2O3-water. This problem consists in solving the system of equations containing: mass conservation, Navier Stokes and energy with adapted simplified hypotheses. Transport equations are solved numerically by finite element method. Governing parameters are taken as Rayleigh number (from 105 to 4´106), volume fraction (from 0 to 10%), amplitude of wavy cover (from 0 to 0.2) and wave of number (from 1.5 to 3.5). Results are presented by stream function and overage Nusselt numbers.
References
Varola, H.F. Oztop, A comparative numerical study on natural convection in inclined wavy and flat-plate solar collectors, Building and Environment 43 (2008) 1535–1544.
Rovense F., Amelio M., Ferraro V., Scornaienchi N.M. (2016). Analysis of a concentrating solar power tower operating with a closed joule Brayton cycle and thermal storage, International Journal of Heat and Technology, Vol.34, No.3, pp.485-490. http://dx.doi.org/10.18280/IJHT.340319
Nasrin R., Alim M.A. (2015). Thermal performance of nanofluid filled solar flat plate collector, International Journal of Heat and Technology, Vol. 33, No. 2, pp. 17-24. http://dx.doi.org/10.18280/IJHT.330203
Wenxian L. Optimum inclinations of south-facing solar collectors during the heating season in China. Energy 1989;14:123–9.
Zhuang C., Fu B., Huang G., Zhang H. (2016). Optimization of the structure of a solar air heater fitted with V-shaped perforated baffles, International Journal of Heat and Technology, Vol. 34, No. 4, pp. 604-610. http://dx.doi.org/10.18280/IJHT.340408
N. Bozorgan, M.Shafahi, Performance evaluation of nanofluids in solar energy: a review of the recent literature, Bozorgan and Shafahi Micro and Nano Systems Letters (2015) 3:5. http://dx.doi.org/10.1186/s40486-015-0014-2
S.U.S. Choi, Enhancing thermal conductivity of fluids with nanoparticles, ASME FED 231 (1995) 99–105.
N. Azwadi Che Sidik et al., A review on the application of nanofluids in vehicle engine cooling system, International Communications in Heat and Mass Transfer 68 (2015) 85–90.
Heris SZ, Edalati Z, Noie SH, Mahian O. Experimental investigation of Al2O3/water nanofluid through equilateral triangular duct with constant wall heat flux in laminar flow. Heat Transf Eng 2014;35:1173e82. http://dx.doi.org/10.1080/01457632.2013.870002
Ahadi A, Yousefi T, Saghir MZ. Double diffusive convection and thermodiffusion of fullerene-toluene nanofluid in a porous cavity. Can J Chem Eng 2013;91. http://dx.doi.org/10.1002/cjce.21801.1918e1827
Michaelides EE. Brownian movement and thermophoresis of nanoparticles in liquids. Int J Heat Mass Transf 2015;81:179e87. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.10.019
Murshed SMS. Simultaneous measurement of thermal conductivity, thermal diffusivity, and specific heat of nanofluids. Heat Transf Eng 2012;33:722e31. http://dx.doi.org/10.1080/01457632.2011.635986
Haghshenas Fard M, Esfahany MN, Talaie MR. Numerical study of convective heat transfer of nanofluids in a circular tube two-phase model versus singlephase model. Int Commun Heat Mass Transf 2010; 37:91e7. http://dx.doi.org/10.1016/j.icheatmasstransfer.2009.08.003
K. Khanafer, K. Vafai, M. Lightstone, Buoyancy-driven heat transfer enhancement in a two-dimensional enclosure utilizing nanofluids, Int. J. HeatMass Transf. 46 (2003) 3639–3653.
H.F. Oztop, E. Abu-Nada, Numerical study of natural convection in partially heated rectangular enclosure filled with nanofluids, Int. J. Heat Fluid Flow 29 (2008) 1326–1336.
M.M. Rahman, M.M. Billah, M. Hasanuzzaman, R. Saidur, N.A. Rahim, Heat transfer enhancement of nanofluids in a lid-driven square enclosure, Numer. Heat Transf. A 62 (2012) 973–991.
E. Abu-Nada, H.F. Oztop, Effects of inclination angle on natural convection in enclosures filled with CuO–water nanofluid, Int. J. Heat Fluid Flow 30 (2009) 669–678.
S.Manikandan and K. Rajan, “Newhybrid nanofluid containing encapsulated paraffin wax and sand nanoparticles in propylene glycol-water mixture: Potential heat transfer fluid for energy management,” Energy Conversion andManagement, vol. 137, pp. 74–85, 2017.
H.D. Koca, S.Doganay, andA. Turgut, “Thermal characteristics and performance of Ag-water nanofluid: Application to natural circulation loops,” Energy Conversion andManagement, vol. 135, pp. 9–20, 2017.
L. S. ShyamandG.N. Tiwari, “Analytical characteristic equation of nanofluid loaded active double slope solar still coupled with helically coiled heat exchanger,” Energy Conversion and Management, vol. 135, pp. 308–326, 2017.
Marina S. Astanina et al., Natural convection in a differentially heated enclosure having two adherent porous blocks saturated with a nanofluid, Eur. Phys. J. Plus (2017) 132: 509
Sheikholeslami M. (2017). Influence of magnetic field on nanofluid free convection in an open porous cavity by means of lattice Boltzmann Method, Journal of Molecular Liquids, Vol. 234, pp. 364-374. http://dx.doi.org/10.1016/J.MOLLIQ.2017.03.104
Sheikholeslami M. (2017). CuO-water nanofluid free convection in a porous cavity considering Darcy law, Eur. Phys. J. Plus, Vol. 132, pp. 1-11. http://dx.doi.org/10.1140/EPJP/I2017-11330-3
Yasin Varol, Hakan F. Oztop, A comparative numerical study on natural convection in inclined wavy and flat-plate solar collectors, Building and Environment 43 (2008) 1535–1544.
R. Nasrin and M. A. Alim, Natural convective inside a correugated solar collector filled with nanofluid : effect of aspect ratio, Engineering e-Transaction (ISSN 1823-6379), Vol. 7, No.2, December 2012, pp 77-85.
M.M. Rahman, S. Mojumder, S. Saha, S.Mekhilef, R. Saidur, Augmentation of natural convection heat transfer in triangular shape solar collector by utilizing water based nanofluids having a corrugated bottom wall, International Communications in Heat and Mass Transfer 50 (2014) 117–127.
Nasrin R., Alim M.A., Ahmed S.R., Comparative study between 2D and 3D modeling of nanofluid filled flat plate solar collector, International Journal of Heat and Technology, Vol. 34 (2016), No. 3, pp. 604-610. http://dx.doi.org/10.18280/IJHT.340326
Ammar Maouassi, Abdelhadi Baghidja, Said Daoud, Noureddine Zeraibi, Numerical study of nanofluid heat transfer SiO2 through a solar flat plate collector, International Journal of Heat and Technology, Vol. 35 (2017), No. 3, pp. 619-625. http://dx.doi.org/10.18280/ijht350319
Issameddine Bacha et al., Optimal Model of Thermal Conductivity and Dynamic Viscosity for Convective Heat Transfer in a Nanofluid, Journal of Nanofluids, Volume 8, Number 1, January 2019, pp. 171-178(8).
D.A.G. Bruggeman. Ann. Physics (Leipzig), 24, 636, 1935.
Brinkman, H.C, The viscosity of concentrated suspensions and solutions, J.Chem. Phys. 20, 1952, 571–581.
Ching-Chang Cho et al., Natural convection and entropy generation of Al2O3–water nanofluid in an inclined wavy-wall cavity, International Journal of Heat and Mass Transfer 97 (2016) 511–520.
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