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19 articles for “Heat Transfer Augmentation”
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Heat Transfer Augmentation in Twisted Rectangular Channel
Abstract: The best way to profoundly and scientifically concentrate the heat exchange upgrade of nanofluids under turbulent course through Twisted Rectangular channels under consistent heat flux conditions on every one of the walls is to look at the marvel numerically. The nanofluids are fundamentally the strong nanoparticle of CuO suspended in water arranged chemically. CFD investigation is led utilizing FLUENT programming by the limited volume technique. The limit conditions connected are …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 2, 2020 · pp. 8–17 Read article
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Heat Transfer Augmentation in Twisted Rectangular Channel
Abstract: Abstract The best way to profoundly and scientifically concentrate the heat exchange upgrade of nanofluids under turbulent course through twisted rectangular channels under consistent heat flux conditions on every one of the walls is to look at the marvel numerically. The nanofluids are fundamentally the strong nanoparticle of CuO suspended in water arranged chemically. CFD investigation is led utilizing FLUENT programming by the limited volume technique. The limit conditions connected …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 2, 2017 · pp. 47–55 Read article
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Passive Augmentation Studies in a Double Pipe Heat Exchanger with Ellipsoidal Dimples
Abstract: In this work, the numerical studies of heat transfer augmentation of a counter-current double pipe heat exchanger with ellipsoidal dimples (inward-facing, raised dimples) on the inner tube was performed using SOLIDWORKS software. The effect of dimple depth, dimple pitch and number of dimples/angles between two dimples on heat transfer was investigated at a constant volumetric flow rate of 4 LPM for hot (water) and cold (water) fluids. The effect of …
Published in Journal of Thermal Engineering and Applications · Vol. 13, Issue 2, 2026 Read article
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Analysis of Porous Media Tube Cooling in a Rankine Cycle SCO2 Heat Exchanger
Abstract: This paper presents analysis of a supercritical CO2 (SCO2) shell and tube heat exchanger for use in a waste-energy recovery Rankine cycle. Heat transfer augmentation through the use of porous media to cool the tube side of the heat exchanger is presented. The variability of the specific heat of SCO2 at high side (shell side) pressure 20 MPa and low side pressure (tube side) of 12.4 MPa is presented. Second …
Published in Journal of Thermal Engineering and Applications · Vol. 3, Issue 1, 2016 · pp. 1–17 Read article
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Augmentation of Heat Transfer in a Trough Shaped Solar Collector Compared to Flat Plate Collector Using CFD
Abstract: Surface Enhancement plays a vital role in augmenting the thermal performance of flat plate collectors. In this paper, an attempt is made to explain in a comparative way the effect of surface geometry of solar flat plate collector having troughs with that of a normal collector. Flat plate collectors with and without troughs of dimensions 1 × 0.5 m is modelled in CATIA V5R19 and meshed using ANSYS ICEM CFD. …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 3, 2014 · pp. 1–7 Read article
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Experimental Analysis on Longitudinal Finned Tube Heat Exchanger and Numerical Investigation on Parameters that Accrue the Overall Heat Transfer Coefficient
Abstract: The presence of nanofluids ascertained great augmentation in heat transfer. Several works have been done so far to parameterize the properties of nanofluid in relation to augmentation of heat transfer. In conjunction to this, the present work focuses on heat transfer within a longitudinal finned tube heat exchanger with simulated employment of nanofluids. Experimentation is done on longitudinal finned tube heat exchanger and the results were compared with numerical simulations …
Published in Journal of Thermal Engineering and Applications · Vol. 3, Issue 1, 2016 · pp. 29–41 Read article
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Numerical Study of Heat Transfer in Six Channeled Dimpled Plate Heat Exchanger
Abstract: Heat transfer augmentation is the most important criteria in many chemical, pharmaceutical and mechanical industry sectors. Considering this factor into account, heat transfer surface modification is being done for heat transfer augmentation purpose. Making dimples on heat transfer surface is one such augmentation technique. This study presents numerical analysis of six channeled counter current dimpled plate heat exchanger, in which the relative depth (dimple depth to diameter ratio (δ/D)) is …
Published in Journal of Thermal Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 15–25 Read article
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Numerical and Experimental Investigation of AlHE30 for Rectangular Finned Cooking Vessel
Abstract: AbstractFins are basically extended surface, which is used to increase the heat transfer rate, this is basically a secondary surface mounted on primary surface to augment heat transfer from it. A numerical study using ANSYS were conducted to optimize fin shape based on base temperature and maximize the heat transfer across the cooking vessel. By investigating fin of (AlHE30) material were conducted experiments the fin of diameter 14 and 195 …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 28–36 Read article
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A Taguchi approach for determination of parametric dependence in absorber tube of parabolic trough solar collector with roughened surfaces
Abstract: The Taguchi experimental design approach is used in this study to offer the ideal design parameters for the absorber tube with roughened surfaces. In order to determine parametric dependence, passive heat transfer augmentation strategies have been used in the parabolic trough receiver in this article by applying the Taguchi approach. So, for better understanding, two case studies are analyzed using two augmentation technique i.e., wire coil and twisted tape inserts. …
Published in Journal of Thermal Engineering and Applications · Vol. 9, Issue 2, 2022 · pp. 40–47 Read article
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A Comprehensive Analysis of Artificially Roughened Solar Air Heaters
Abstract: The solar air heater is the most cost-effective and popular solar energy harvesting device. It may be used for a variety of tasks, including drying crops, heating rooms, conditioning wood, and curing industrial items. Introducing artificial roughness to surfaces emerges as a highly effective method to augment heat transfer rates within the ducts of solar air heaters. Over the past three decades, research interest has centered on the incorporation of …
Published in Journal of Experimental & Applied Mechanics · Vol. 14, Issue 3, 2023 · pp. 33–43 Read article
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Enhanced Heat Transfer in Double Pipe Heat Exchanger with Circular Fins Using Copper Nanofluid and Twisted Tape Inserts: A Computational Study
Abstract: The enhancement of convective heat transfer in a double-pipe heat exchanger utilizing circular finned twisted tape inserts and helical screw-tapes with centre rods, in conjunction with copper oxide nanofluid as the heat transfer medium was studied in this project. Computational Fluid Dynamics (CFD) simulations were conducted across Reynolds numbers ranging from 500 to 5000 to analyse heat transfer characteristics. The investigation focuses on Nusselt number improvement and friction factor analysis …
Published in Journal of Thermal Engineering and Applications · Vol. 12, Issue 1, 2025 · pp. 11–22 Read article
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Twisted Tape Insert Effect on Heat Transfer Enhancement Placed in Smooth Tube: A Review
Abstract: Today heat exchangers are commonly used with twisted-tape inserts to improve convectiveheat transfer in various industries such as thermal power plants, chemical processing plants,air conditioning equipment, refrigerators, petrochemical, biomedical, and food processingplants. By using the twisted tape patch, the fluid flow swirls together, interrupting a thermalboundary layer on the surface of the pipeline. Heat exchanger thermal efficiency can beenhanced by heat transfer increase techniques. Tape insert is one of the …
Published in Journal of Thermal Engineering and Applications · Vol. 7, Issue 3, 2020 · pp. 25–28 Read article
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Design of Evaporator and Condenser for Solar Adsorption Refrigeration System
Abstract: Solar adsorption refrigeration systems provide a promising alternative for sustainable cooling in regions with limited grid access and high solar availability because they can convert low-grade thermal energy into refrigeration without mechanical compression. The performance of such systems depends strongly on the thermal behavior of the evaporator and condenser, since these components govern the refrigerant evaporation rate, condensation effectiveness, and overall cycle stability. This paper presents focus on the design …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 13, Issue 2, 2026 · pp. 1–10 Read article
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Heat Transfer and Exergy Analysis of Methane-Air Flame Impinging on Plane Surfaces
Abstract: Exergy and heat flow have been numerically investigated for flame impinging on flat circular plates. The maximum work available when the system is brought to thermodynamic equilibrium state with its surrounding is known as the exergy of a system. This state of equilibrium of the system depends on the pressure, temperature, and composition of environment. Efficiency based on exergy is otherwise known as the second-law efficiency which measures the usefulness …
Published in Recent Trends in Fluid Mechanics · Vol. 9, Issue 1, 2022 · pp. 13–24 Read article
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Significance of Nanoparticles in Phase Change Materials as Heat Transfer Fluid for Solar Heat Absorption
Abstract: The utilization of solar energy as a sustainable and eco-friendly power source has gained significant traction in recent years, with innovations constantly evolving to improve efficiency and effectiveness.one such innovation lies in the integration of nanoparticles into phase change materials (PCMs) to enhance their heat transfer capabilities, making them ideal candidates for solar heat absorption applications. This paper delves into the significance of nanoparticles in PCMs as heat transfer fluids …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 57–65 Read article
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The Effect of CNT Coating on Convective Heat Transfer Coefficient, Heat Flux, Roughness, Pressure Drop of Porous Material with 3-Omega Technique: A Review
Abstract: The paper deals with the tentative survey on the heat transfer and pressure drop characteristics of CNT glaze on a stainless steel substrate in a rectangular comprehensive channel with water as the working fluid. The extremely high thermal conductivity of individual carbon nanotubes was predicted hypothetically and pragmatic experimentally. Under both, laminar and turbulent flow conditions, the experiments were conducted with Reynolds number unpredictable from 500–2600. A nanofluid, which depends …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 18, Issue 3, 2016 · pp. 5–8 Read article
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A Review on Increases the Heat Transfer Rate of the Solar Air Heater by Adding the Fins in the Absorber Plate
Abstract: Solar air heaters are extensively utilised in a diverse range of domestic and industrial settings. The need to enhance the thermal efficiency of solar air heaters has prompted researchers to concentrate on enhancing the thermal performance through the implementation of artificial flow modification techniques in the flow field. Consequently, the presence of this phenomenon will disrupt the laminar sublayer located beneath the absorber plate, so contributing to an elevation in …
Published in Trends in Machine design · Vol. 10, Issue 3, 2023 · pp. 8–16 Read article
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Investigation of Heat Transfer in Concentric Annuli with Perforated Inserts
Abstract: The increasing necessity for saving energy and material imposed by the diminishing world resources and environmental concerns have prompted the development of more effective heat-transfer equipment with improved heat-transfer rates. The hydrodynamic boundary layer acts as main resistance for the transfer of heat from tube surface to fluid or vice-versa and many researchers are trying to improve the convective heat transfer rate with inserts in tubes to break the boundary …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 1, 2018 · pp. 56–68 Read article
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Effect MFD Viscosity on Bénard–Marangoni Ferroconvection in a Rotating Ferrofluid Layer with Convective Surface Boundary Condition
Abstract: AbstractThe combined effect of Coriolis force due to rotation and magnetic field dependent (MFD) viscosity on the onset of Bénard–Marangoni convection in a horizontal layer of ferrofluid is investigated theoretically. The lower boundary is taken to be rigid–isothermal, while the upper free boundary open to the atmosphere is flat and subject to a convective surface boundary condition. The Galerkin technique is employed to extract the critical stability parameters numerically. It …
Published in Recent Trends in Fluid Mechanics · Vol. 7, Issue 2, 2020 · pp. 12–32 Read article