Heat Transfer最新文献

{"title":"The Role of Periodic Mixing on Thermal Energy Extraction From an L-Shaped Heater Covered by Porous Layer","authors":"Nehila Tarek,&nbsp;Muneer Ismael","doi":"10.1002/htj.23265","DOIUrl":"https://doi.org/10.1002/htj.23265","url":null,"abstract":"<div>\u0000 \u0000 <p>In this numerical study, a technical solution is proposed to maximize heat transfer within a square cavity by integrating an L-shaped porous layer in the lower right part of the cavity, covering an L-shaped heat sink heated to a set temperature. Additionally, a thin bar undergoes a periodic sinusoidal motion with an amplitude of <i>V</i>_bar and a period of <i>ω</i>_bar. The finite element method is used to solve the governing dimensionless nonlinear equations, with a mesh test supported by numerical and experimental validations. The study focuses on the effects of bar displacement amplitude (<i>V</i>_bar = 0.1–0.4), displacement period (<i>ω</i>_bar = 1/3–1), Reynolds number (<i>Re</i> = 50, 100, and 200), Darcy number (<i>Da</i> = 10⁻² and 10⁻⁴), and porosity (<i>ε</i> = 0.75–0.95) on the average Nusselt number, streamlines, and isotherms distribution. The numerical results show that increasing the bar displacement amplitude, Darcy number, and Reynolds number can significantly enhance the overall heat transfer, while an increase in the porosity of the porous medium has the opposite effect. The bar's sinusoidal motion and the porous medium's presence alter the flow dynamics within the cavity and directly influence heat transfer.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1851-1864"},"PeriodicalIF":2.8,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Study of Quadratic Buoyancy-Driven Magnetohydrodynamic Stagnation-Point Flow With Radiative Heat, Thermophoresis, and Arrhenius Energy Over a Stretching Surface","authors":"Utpal Jyoti Das,&nbsp;Indushri Patgiri","doi":"10.1002/htj.23264","DOIUrl":"https://doi.org/10.1002/htj.23264","url":null,"abstract":"<div>\u0000 \u0000 <p>The motivation of this study is to explore the magnetohydrodynamic flow of the Newtonian fluid model, focusing on the effects of thermophoresis and nonlinear convection on the viscous fluid in a stretchy sheet embedded in permeable media. This work aims to study the flow behavior, including the novel effects of radiative heat in the energy equation and energy activation in the concentration equation. Through proper similarity variables, governing equations are transformed to dimension-free form. The nonlinear dimension-free equations are solved via the bvp4c tool. The study of stagnation-point flow for a viscous nanofluid towards a stretchable area offers a comprehensive understanding of the relationships between fluid dynamics, heat transportation, and material properties. The flow behavior of several physical factors is studied graphically for temperature, velocity, and concentration boundary layer. Moreover, skin friction, mass, and heat transmission rates are important in this investigation. The impact of skin friction, heat, and mass transmission rates are represented in a table. From observation, it is highlighted that the permeability parameter reduces fluid velocity and the heat transport rate. Magnetic parameter enhances skin friction. Heat and mass transfer rates decrease by 0.39% and 0.21%, respectively, whereas skin friction rises by 6.19% when <i>M</i> is increased by 0.5 from 0.5 to 1. The heat transfer rate increases by 0.06% when the activation energy is increased by 0.2 from 0.4 to 0.6, but the mass transfer rate declines by 39.8%. Eckert number and radiation parameters enhance the fluid's temperature. The concentration boundary layer reduces for increasing chemical reactions and Schmidt numbers. This research helps design efficient systems and processes for engineering and commercial uses incorporating fluid motion and heat exchange.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1841-1850"},"PeriodicalIF":2.8,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical Simulations of Heat and Mass Transfer Enhancement Over a Rotating Cone","authors":"Saquib Ul Zaman,&nbsp;Sameed Ahmad","doi":"10.1002/htj.23251","DOIUrl":"https://doi.org/10.1002/htj.23251","url":null,"abstract":"<div>\u0000 \u0000 <p>In this work, we investigate the combined effects of heat and mass exchange on the time-dependent convectional flow of a rheological nanofluid across a rotating cone. A numerical arrangement of nonlinear differential equations is obtained for spinning cones with separator temperature boundary conditions by similarity transformation. The effect of different parameters on the velocity, temperature, and concentration profiles are discussed. Tangential velocity is observed to decrease with an increase in the Deborah number, whereas it increases with increasing values of the angular velocity ratio, relaxation to the retardation time ratio, and buoyancy parameter. Expansion in the Prandtl number is noted to decrease the boundary-layer temperature and thickness. Nusselt number and skin disunion observations are also considered. It is discovered that the Nusselt number expands by expanding the lightness parameter and Prandtl number, whereas it increases by decreasing the Deborah number. We also noticed that the Sherwood number falls incrementally in Deborah and Prandtl numbers, but it upsurges with an increase in the buoyancy parameter. The effect of parameters on temperature is graphically displayed, and the face shear stress tabulated values and heat shift rate are included in tables.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1832-1840"},"PeriodicalIF":2.8,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetohydrodynamic Flow of Immiscible Couple Stress and Newtonian Fluids in a Porous Pipe With Navier Slip Effect","authors":"Yitagesu Daba,&nbsp;Gosa Gadisa","doi":"10.1002/htj.23255","DOIUrl":"https://doi.org/10.1002/htj.23255","url":null,"abstract":"<p>This work deals with the magnetohydrodnamic (MHD) flow of non-miscible couple stress and Newtonian fluids within a horizontally-oriented porous cylinder. The overall flow domain is divided into two separate regions. In the core area, identified as region I, the flow of the couple stress fluid takes place, while in region II, which forms the outer part of the flow area, the flow of Newtonian fluid occurs. The linear Navier slip condition on the cylinder's surface and continuity conditions for velocities and shear stresses, along with vanishing couple stress at the fluid-fluid surface, have been taken as boundary and interface conditions, respectively. The nonlinear partial differential equations describing the flow situation along with the boundary conditions are first mathematically formulated and, then cast in a dimensionless form. Closed-form solutions for velocities, wall shear stress, and total flow rate have been obtained by solving the non-dimensionalized governing equations through the direct method. The influences of different flow parameters on the velocity in both flow areas are depicted graphically. The numerical values of the total flow rate and the wall stress for various flow parameters are also tabulated. The examination of the obtained results indicates that the fluid velocities diminish with increases in the Hartmann number, viscosity ratio, and porosity parameter. Conversely, they escalate with higher Reynolds numbers, pressure gradients, and slip parameters. Furthermore, the increase in the couple stress parameter increases the velocity of the couple stress fluid (core region), while the velocity of the Newtonian fluid (peripheral region) remains nearly constant. The findings of this research align very well with the results documented in the existing literature. This study is novel as it examines, for the first time, the effects of slip and magnetic fields on the flow of two immiscible fluids (couple stress and Newtonian) through a porous medium in cylindrical coordinates.</p>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1819-1831"},"PeriodicalIF":2.8,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/htj.23255","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Analytical and Numerical Methods to Solve Boundary-Layer Natural Convection Problem for Various Prandtl Number Fluids","authors":"Durgesh Kushawaha,&nbsp;Sushil Yadav,&nbsp;Rajiv Aggarwal","doi":"10.1002/htj.23260","DOIUrl":"https://doi.org/10.1002/htj.23260","url":null,"abstract":"<div>\u0000 \u0000 <p>Semianalytical approaches such as the Homotopy Perturbation Method (HPM) and Variational Iteration Method (VIM), as well as the Numerical Method, are investigated in this study to solve the boundary-layer natural convection problem for various Prandlt number fluids on a horizontal flat plate. Nonlinear partial differential expressions can be incorporated into the ordinary differential framework by applying appropriate transformations. The purpose of this study is to show how analytical solutions to heat transfer problems are more versatile and broadly applicable. The results of the analytical solutions are compared with numerical solutions, revealing a high level of approximation accuracy. The numerical findings clearly imply that the analytical techniques can produce accurate numerical solutions for nonlinear differential equations. We analyze the temperature distribution, velocity, and flow field under various conditions. The study found that temperature patterns, velocity distribution, and flow dynamics are all improved by raising the Prandtl numbers. As a result, the thickness of the boundary layer is significantly reduced, leading to an enhanced heat transfer rate at the moving surface. This reduction in boundary-layer thickness contributes to a more efficient convection process. The study further highlights that the HPM and the VIM both offer highly accurate approximations for solving nonlinear differential equations related to boundary-layer flow and heat transfer. Among these methods, HPM was found to provide a higher level of precision compared with VIM.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1807-1818"},"PeriodicalIF":2.8,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic Effect on Thermocapillary Flow of Silicon Melt in an Annulus","authors":"Ali Bendjaghlouli,&nbsp;Brahim Mahfoud,&nbsp;Hibet Errahmane Mahfoud","doi":"10.1002/htj.23262","DOIUrl":"https://doi.org/10.1002/htj.23262","url":null,"abstract":"<div>\u0000 \u0000 <p>Thermocapillary convection plays a crucial role in various processes, including the formation of crystals from a molten state. Recent studies have established that the oscillatory flow of the molten material during crystal growth is a significant contributor to the formation of undesirable micro-inhomogeneities. The oscillatory flow can cause uneven distribution of solute and impurities, leading to localized variations in crystal composition and structure. This article discusses the possibility of controlling bidirectional thermocapillary flow, which is one of the sources of inhomogeneity in produced crystals, using an external magnetic field. The model examined in this study is a shallow annulus filled with silicon melt. This research investigates the effects of the annular space and the magnetic field on the thermocapillary process. The mathematical model, formulated as partial differential equations, was solved using the finite-volume method. The results show the formation of hydrothermal waves with different azimuthal modes (<i>m</i> = 6, 4, and 3) corresponding, respectively, to the annular space <i>R</i> = 0.8, 0.7, and 0.6. Stronger magnetic fields attenuate the instabilities and reduce the vertical temperature gradient, transforming the isotherms into concentric circles, thereby improving the homogeneity of the crystals.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1796-1806"},"PeriodicalIF":2.8,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating Salt-Finger Convection Under Time-Dependent Gravity Modulation in Micropolar Liquids","authors":"Devika Jayan,&nbsp;Clair Tom,&nbsp;N. Arun Kumar","doi":"10.1002/htj.23252","DOIUrl":"https://doi.org/10.1002/htj.23252","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper investigates how gravity modulation affects salt-finger convection in a micropolar liquid layer confined between two parallel, infinitely long plates separated by a thin gap. The system is heated and has solute added from above. The study uses linear stability analysis to examine when and how salt-finger convection, driven by the salt-finger process, begins. To analyze this, the partial differential equations governing the system are solved numerically using normal mode analysis. The Venezian approach is applied to find the critical Rayleigh number and the solutal Rayleigh number, which are key to understanding the onset of convection. Also, the paper explores how different micropolar fluid parameters—such as the coupling parameter, micropolar heat conduction parameter, couple stress parameter, and inertia parameter—affect the system when gravity modulation is present. It is found that gravity modulation can either stabilize or destabilize convection, depending on its frequency. At very high frequencies (approaching infinity), the effect of gravity modulation becomes minimal, having little impact on the convection process. The paper also examines the relationship between the critical Rayleigh number and the solutal Rayleigh number, which are related to heat and solute concentration, respectively.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1782-1795"},"PeriodicalIF":2.8,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Atomized Droplet Characteristics and Heat Transfer Performance in Minimum Quantity Lubrication Cutting Technology","authors":"Donghui Li,&nbsp;Tao Zhang,&nbsp;Tao Zheng,&nbsp;Nan Zhao,&nbsp;Zhen Li","doi":"10.1002/htj.23254","DOIUrl":"https://doi.org/10.1002/htj.23254","url":null,"abstract":"<div>\u0000 \u0000 <p>Minimum quantity lubrication (MQL) cutting technology is ecologically friendly and efficient in terms of cooling and lubrication. It has be.en widely used in recent years. The atomization effect of the MQL system was characterized by the average diameter of atomized droplets in this study. Second, the MQL heat transfer experimental platform was built, and the cooling experiments were carried out under different MQL parameters. The heat flux density is linearly related to the heat source temperature under steady-state conditions, and the nozzle target distance has the greatest influence on the cooling effectiveness. The flow state of the lubricating oil is liquid film flow when the heat source temperature is lower than 120°C. The flow state of the lubricating oil is ditch flow when the heat source temperature is higher than 180°C. The average droplet diameter decreased by 43.7% when the pressure was 0.4 MPa compared with 0.2 MPa. An increase in gas supply pressure can improve the cooling effect of MQL. With the increase in flow rate, the average droplet diameter and steady-state heat flux do not change significantly. At 270°C, the steady-state heat flux at a flow rate of 90 mL/h was only 2.99% lower than that at 18 mL/h. The average droplet diameter is the smallest, and the cooling effect is the best when the nozzle diameter is 1.5 mm. The heat transfer effect is the best when the nozzle distance is 20 mm at different temperatures. When the nozzle distance is between 20 and 40 mm, the heat transfer capacity of MQL is the most stable. The heat transfer performance of MQL is helpful to improving the efficiency and quality of cutting, and promoting the implementation of a green manufacturing and sustainable development strategy.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1750-1760"},"PeriodicalIF":2.8,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical Study on the Effect of Trapezoidal-Wave Shaped Partition on Natural Convection Flow Within a Porous Enclosure","authors":"Jayesh Chordiya,&nbsp;Padmakar Deshmukh,&nbsp;Ram V. Sharma","doi":"10.1002/htj.23247","DOIUrl":"https://doi.org/10.1002/htj.23247","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 &lt;p&gt;The use of a trapezoidal-wave shaped diathermal partition to reduce natural convection flow and heat transfer within a fluid-saturated, differentially heated porous enclosure is investigated in this study. This work is motivated by the need to control and reduce convective heat transfer in differentially heated porous enclosures, impacting applications like energy-efficient building materials, thermal insulation, and improved heat exchangers. The study aims to disrupt convection currents and minimize thermal transfer. The Darcy flow model, representing fluid flow in porous media, is applied here and solved using the successive accelerated replacement (SAR) scheme with a finite difference method. Key parameters are varied to explore their effects on thermal and flow patterns. These parameters include the partition's length (with values between &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0.02&lt;/mn&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mi&gt;Z&lt;/mi&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mn&gt;0.1&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt; &lt;math altimg=\"urn:x-wiley:26884534:media:htj23247:htj23247-math-0001\" wiley:location=\"equation/htj23247-math-0001.png\" display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mrow&gt;&lt;mrow&gt;&lt;mn&gt;0.02&lt;/mn&gt;&lt;mo&gt;unicode{x02264}&lt;/mo&gt;&lt;mi&gt;Z&lt;/mi&gt;&lt;mo&gt;unicode{x02264}&lt;/mo&gt;&lt;mn&gt;0.1&lt;/mn&gt;&lt;/mrow&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;), height (spanning from &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mi&gt;H&lt;/mi&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mn&gt;1&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt; &lt;math altimg=\"urn:x-wiley:26884534:media:htj23247:htj23247-math-0002\" wiley:location=\"equation/htj23247-math-0002.png\" display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mrow&gt;&lt;mrow&gt;&lt;mn&gt;0&lt;/mn&gt;&lt;mo&gt;unicode{x02264}&lt;/mo&gt;&lt;mi&gt;H&lt;/mi&gt;&lt;mo&gt;unicode{x02264}&lt;/mo&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;/mrow&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;), and distance from the left wall of the enclosure (&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0.25&lt;/mn&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mi&gt;D&lt;/mi&gt;\u0000 \u0000 &lt;","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1733-1749"},"PeriodicalIF":2.8,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovative Enhancements for Hemispherical Solar Stills: Enhancing Performance With Copper Conical Fins and Red Brick Fillings","authors":"Mohammed El Hadi Attia,&nbsp;Abd Elnaby Kabeel,&nbsp;M. A. Elazab,&nbsp;M. G. Mousa","doi":"10.1002/htj.23257","DOIUrl":"https://doi.org/10.1002/htj.23257","url":null,"abstract":"<div>\u0000 \u0000 <p>The existence of fins on a basin's flat absorber undoubtedly enhances the thermal efficiency and distillate output by increasing the exposed surface area of water to sunlight. However, the issue of shading caused by the fins hampers the productivity of distillers. Researchers are currently seeking a resolution to this problem. The current study conducted a performance comparison of hemispherical solar distillers using copper conical fins with a diameter of 4 cm and a height of 2 cm. The distillers were also equipped with copper conical fins-filled red bricks, which were painted black. These fins were placed on the bottom of the basin at various spacing intervals (0, 1, and 2 cm) and a water depth of 2 cm. The experimental data showed that the productivity values of the hemispherical solar distiller using copper conical fins (HSD-CCF) were 6.00, 5.40, and 5.00 L/m², while the productivity values of the hemispherical solar distiller using copper conical fins-filled with red bricks (HSD-CCF &amp; RB) were 7.00, 6.30, and 5.80 L/m² at spacing distances of 0, 1, and 2 cm, respectively. The conventional hemispherical solar distiller without fins (CHSD) achieved a peak efficiency of 4.50 L/m². The HSD-CCF achieves cumulative yields of 33.33%, 20.00%, and 11.11% when utilizing copper conical fins at spacing distances of 0, 1, and 2 cm, respectively, compared to the THSD. The efficiency of the hemispherical sun distiller using copper conical fins-filled with red bricks (HSD-CCF &amp; RB) is enhanced by 55.55%, 40.00%, and 28.89% when compared to the conventional hemispherical solar distiller (THSD), at spacing distances of 0, 1, and 2 cm, respectively. The study discovered that including copper conical fins packed with red bricks improves the efficiency of solar distillers. Furthermore, the study revealed that increasing the spacing between the fins further reduces shading, hence enhancing performance.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1765-1781"},"PeriodicalIF":2.8,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}