每年出版 6 期
ISSN 打印: 1940-2503
ISSN 在线: 1940-2554
Indexed in
DESIGN AND PERFORMANCE EVALUATION OF AIR SOLAR CHANNELS WITH DIVERSE BAFFLE STRUCTURES
摘要
We conducted a detailed analysis of the baffle design and its impact on the convective phenomenon of heat transfer inside a solar air channel. Several differently shaped baffles [i.e., arc, cascaded, corrugated, diamond, rectangular (simple), trapezoidal, triangular, V-downstream, V-upstream, double V, and Z-shaped] with the same flow conditions were compared in a staggered manner. Our purpose is to explore the effect of these baffle geometries on the steady turbulent forced-convection flow behaviors inside a two-dimensional horizontal rectangular cross section channel. The thermo-aeraulic aspects are presented for Reynolds numbers based on the aeraulic diameter of the channel ranging from 12 × 103 to 32 × 103. The governing flow equations with the thermo-aerodynamic boundary conditions were solved by the finite volume method using the commercial CFD software FLUENT. The result analysis shows that the V-upstream–type baffle is the best design, which significantly decreases the skin friction loss, giving thus an augmentation in the thermal enhancement factor from 11.855 to 25.397% compared to the simple baffle.
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Menni Younes, Azzi Ahmed, Chamkha A., Modeling and analysis of solar air channels with attachments of different shapes, International Journal of Numerical Methods for Heat & Fluid Flow, 29, 5, 2019. Crossref
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Menni Younes, Azzi Ahmed, Chamkha Ali J., Harmand Souad, Effect of wall-mounted V-baffle position in a turbulent flow through a channel, International Journal of Numerical Methods for Heat & Fluid Flow, 29, 10, 2019. Crossref
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Ganesh Kumar P., Balaji K., Sakthivadivel D., Vigneswaran V.S., Meikandan M., Velraj R., Effect of using low-cost thermal insulation material in a solar air heating system with a shot blasted V-corrugated absorber plate, Thermal Science and Engineering Progress, 14, 2019. Crossref
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Olfian Hassan, Zabihi Sheshpoli Amirhossein, Mousavi Ajarostaghi Seyed Soheil, Numerical evaluation of the thermal performance of a solar air heater equipped with two different types of baffles, Heat Transfer, 49, 3, 2020. Crossref
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N Girish, Sankar M., Makinde O. D., Developing buoyant convection in vertical porous annuli with unheated entry and exit, Heat Transfer, 49, 5, 2020. Crossref
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Menni Younes, Ghazvini Mahyar, Ameur Houari, Ahmadi Mohammad Hossein, Sharifpur Mohsen, Sadeghzadeh Milad, Numerical calculations of the thermal-aerodynamic characteristics in a solar duct with multiple V-baffles, Engineering Applications of Computational Fluid Mechanics, 14, 1, 2020. Crossref
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Medjahed Driss Meddah, Ameur Houari, Rebhi Redha, Inc Mustafa, Ahmad Hijaz, Menni Younes, Lorenzini Giulio, Bayones Fatimah S., Aldhabani Musaad, Details on the Hydrothermal Characteristics within a Solar-Channel Heat-Exchanger Provided with Staggered T-Shaped Baffles, Energies, 14, 20, 2021. Crossref
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BHARADWAJ Gaurav, SHARMA Kamal, MAUSAM Kuwar, Factors influencing the performance of solar air heater (SAH) having artificial coarseness: a review, Journal of Thermal Engineering, 2021. Crossref
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Kumar B., Seth G. S., Singh M. K., Chamkha A. J., Carbon nanotubes (CNTs)-based flow between two spinning discs with porous medium, Cattaneo–Christov (non-Fourier) model and convective thermal condition, Journal of Thermal Analysis and Calorimetry, 146, 1, 2021. Crossref
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Menni Younes, Ameur Houari, Yao Shao-Wen, Amine Amraoui Mohammed, Inc Mustafa, Lorenzini Giulio, Ahmad Hijaz, Computational fluid dynamic simulations and heat transfer characteristic comparisons of various arc-baffled channels, Open Physics, 19, 1, 2021. Crossref
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Menni Younes, Ahmad Hijaz, Ameur Houari, Askar Sameh, Botmart Thongchai, Bayram Mustafa, Lorenzini Giulio, Effects of two-equation turbulence models on the convective instability in finned channel heat exchangers, Case Studies in Thermal Engineering, 31, 2022. Crossref
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Aldabesh Abdulmajeed, Rout Bishnu C., Mishra Satyaranjan R., Henda Mouna Ben, Tlili Iskander, Impact of magnetohydrodynamic and buoyancy‐driven forces on carbon nanotube‐water nanofluid, Mathematical Methods in the Applied Sciences, 2020. Crossref
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Venkata Ramana K., Gangadhar K., Kannan T., Chamkha Ali J., Cattaneo–Christov heat flux theory on transverse MHD Oldroyd-B liquid over nonlinear stretched flow, Journal of Thermal Analysis and Calorimetry, 147, 3, 2022. Crossref
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Almeshaal Mohammed A., Maatki Chemseddine, Kolsi Lioua, Ghachem Kaouther, Chamkha Ali, 3D Rayleigh‐Bénard‐type natural convection in MWCNT‐nanofluid‐filled L‐shaped enclosures with consideration of aggregation effect, Mathematical Methods in the Applied Sciences, 2020. Crossref
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Jiang Yingzi, Alawee Wissam Hameed, Essa Fadl Abdelmonem, Abdullah Abdelkader saad, Omara Zakaria Mohamed, Ahmad Hijaz, Ali Rifaqat, Wang Fuzhang, Menni Younes, Effect of area ratio and Reynolds number on the distribution of discharge in dividing manifold, International Journal of Low-Carbon Technologies, 17, 2022. Crossref