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132 articles for “rate of heat transfer”
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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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Improved Cooling Effectiveness in Radiators and Heat Exchangers with Nanofluid-Based Technology
Abstract: This study discusses how the process of heat transfer in radiators and heat exchangers can be improved using nanofluids and analysis of computational fluid dynamics. These nanofluids comprise Al₂O₃ and ZnO dispersed in water-based ethylene glycol solutions, and graphene oxide dispersed in water-based solutions, and performance evaluation was done for the range of flow rates 180–420 l/h. And a 3D CAD model was created using the ANSYS Workbench. It was …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 1, 2025 · pp. 31–62 Read article
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A Study and Thermal Analysis of Automobile Radiator Using Nanofluids
Abstract: Over past few decades, number analysis has been carried out by the researchers and academicians in the radiator for it’s efficiency. It is purely depend on the application of fluid. Conventional fluids such a water, ethylene glycol and sodium are normally used as heat transfer fluids in radiator various techniques are applied to improve the heat transfer the used of additives is a technique applied to increase the heat transfer …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 1, 2016 · pp. 9–14 Read article
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Human Comfort inside the Vehicle by Using Internal Cooling Materials
Abstract: Human comfort is the most important aspect of the vehicle. Due to harsh sunlight and many other climatic conditions the human comfort level is breached. This breaching in the comfort level results in the abnormal physical conditions of the human. The occupants may feel uncomfortable which may cause unpleasant ride and journey. The most common problem encountered under this condition is the overheating of the vehicle -cabin due to parking …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 52–58 Read article
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Design, Fabrication and Testing of Ejector for Solar Thermal Cooling System
Abstract: The Solar Thermal Cooling System mainly comprises of Solar Panels, Generator, Condenser and Evaporator. In addition an ejector is mounted in the existing system to improve the performance of the system. The Ejector is having a primary and secondary inlet nozzle. In the primary flow nozzle the motive refrigerant will flow with high pressure which comes from generator. The area of the ejector is reduced to increase the pressure by …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 1, 2020 · pp. 12–20 Read article
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Design and Thermal Analysis of Fins for Air Cooled Engine by Varying its Geometry
Abstract: An air-cooled motorcycle engine releases heat to the atmosphere through the mode of convection to facilitate this, fins are provided on the outer surface of the cylinder. The cooling fins allow the wind to move the heat away from the engine. The heat transfer rate depends upon the velocity of the vehicle, fin geometry and the ambient temperature. Low rate of heat transfer through fins is the main problem of …
Published in Trends in Machine design · Vol. 5, Issue 3, 2018 · pp. 37–53 Read article
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Design and Analysis of of Fins for Air Cooled Engine by Varying its Geometry & Material - A Review
Abstract: Fins are mechanical structures which are used to cool various structures via the process of convection to facilitate this, fins are provided on the outer surface of the cylinder. The cooling fins allow the wind to move the heat away from the engine. For fins, material like aluminium alloy is widely used. In most of cases simple fins geometry is preferred such as rectangular fins. . The heat transfer rate …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 41–45 Read article
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A review on the Enhancing Heat Exchanger Efficiency with CuO/Water Nanofluid in a Shell and Helical Coil System
Abstract: Over the years, there has been a lot of focus on improving heat transmission by utilizing various approaches in an effort to make heat exchangers smaller and less expensive. The following methods have been found to be the most successful in increasing heat transfer rate in heat exchangers: Nano-Fluids, first (3) Rubbing heat exchanger surfaces rough. (2) Inserting fluid tabulators. However, a combination of all three approaches or any two …
Published in Trends in Mechanical Engineering & Technology Read article
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Enhancing Engine Efficiency and Reducing Emissions: A Comprehensive Review of Air Calorimeter Technology
Abstract: The article talks about the idea behind this project to pre-heat the intake air that passes through the carburettor to increase a petrol engine's fuel efficiency. The vaporization of petrol in the carburettor is influenced by the humidity of the surrounding air. Therefore, vaporization can be facilitated, and full combustion can be accomplished by preheating the carburettor's incoming air for a significant amount of time. Additionally, by lowering the amount …
Published in Journal of Aerospace Engineering & Technology · Vol. 15, Issue 1, 2025 · pp. 8–13 Read article
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Enhancement of Thermo-hydraulic Properties of a Novel Composite-Based Spiral Fin Tube Heat Exchanger: An Experimental Investigation
Abstract: It is now crucial for engineers to enhance procedures and boost heat exchanger efficiency. Heat exchanger performance can be significantly enhanced by a variety of methods. Composite-based fins or enlarged surfaces are frequently utilized to increase the air-side heat transfer rate in a variety of heat transfer applications. Because composite materials are lightweight, highly thermally conductive, and resistant to corrosion, they were used. A composite based fin's efficiency is influenced …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 238–251 Read article
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Experimental Study on Heat Transfer Enhancement in a Mini Channel Heat Sink Using Al2O3/Water Nanofluid
Abstract: In this present work, experimental investigation of heat transfer enhancement using Al2O3/water nano fluid in a mini channel heat sink is carried out. Efforts have been undertaken to explore the forced convective heat transfer performance of Al2O3/water nanofluid having 0.1% volume fraction of Al2O3 as the coolant in a copper mini channel heat sink. The mini channel heat sink fabricated consists of 15 parallel rectangular mini-channels of length 50mm with …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 2, 2014 · pp. 29–38 Read article
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A Review on Behavior of Heat Transfer in the Fluid in Shell and Tube Type Heat Exchanger
Abstract: The primary objective of this literature analysis is to examine the many applications of "Computational Fluid Dynamics (CFD)" within the domain of heat exchangers. "Computational Fluid Dynamics (CFD)" has been utilized in several investigations relating to heat exchangers, including fluid flow maldistribution, fouling, pressure drop, and thermal analysis during the stages of design and optimization. The simulations conducted demonstrate that the solutions generated from CFD are generally within the permissible …
Published in Trends in Machine design · Vol. 10, Issue 3, 2023 · pp. 1–7 Read article
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Experimental Analysis of Heat Transfer
Abstract: Experimental heat transfer and pressure drop characteristics of Al2O3/water nanofluid in a circular tube with meshes and without meshes is reported in this paper. The SEM image of Al2O3 nanoparticles in base fluid showed that the particles are uniformly dispersed in base fluid and tiny agglomeration of nanoparticles are present. The experiments were conducted under turbulent conditions with varying flow rates. It is observed the heat transfer rates increased by …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 16, Issue 1, 2014 Read article
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Corrugated Tube Shell-and-Tube Heat Exchanger Using Epoxy-Based Polymer Composite Coatings for Lightweight and Efficient Thermal Systems
Abstract: Corrugated tube geometries are widely recognized for their ability to enhance heat transfer through boundary layer disruption and secondary flow generation. In this study, a combined experimental and computational investigation is carried out to evaluate the thermo-hydraulic performance of a shell-and-tube heat exchanger incorporating corrugated stainless steel tubes integrated with an epoxy-based polymer composite coating and housed within a mild steel shell. Unlike conventional metallic systems, the present work introduces …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 603–617 Read article
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Optimization of Continuous Cast Steel in Steel Manufacturing Industry
Abstract: Steel industry has given a wide exposure for the researchers, academicians and professionals to deal with even minute plethora and dots to come up with new innovations and creativity. In order to increase the affordability and accessibility, the continuous casting is optimized through various processes and levels. Optimization is required to be done on discovering a range of water flow rate, material properties, thermal heat transfer factors and oscillation parameters …
Published in Trends in Mechanical Engineering & Technology · Vol. 9, Issue 2, 2019 · pp. 7–11 Read article
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Enhancing Efficiency and Adaptability of Double Pipe Heat Exchangers: Design and Implementation Perspectives
Abstract: The present study focuses on exploring the intricacies of twin pipe heat exchangers, highlighting their versatility and efficiency in various industrial applications. Twin pipe heat exchangers consist of concentric pipes through which fluids flow in opposite directions, enabling effective heat transfer across significant temperature gradients. This design is particularly advantageous in scenarios involving low flow rates or highly viscous fluids, as well as moderate heat loads. One of the key …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 1, 2025 · pp. 63–70 Read article
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CFD Analysis of Heat Transfer Enhancement in a Circular Pipe Flow by Swirl Flow
Abstract: Heat transfer enhancement techniques are very important to save more energy by using optimal energy sources. Heat transfer rate depends upon different parameters like Reynolds number, properties of fluid, nature of surface, mass flow rate, velocity, temperature and pressure. Many techniques are used for heat transfer enhancement in which swirl flow devices are effective. For enhancement of heat transfer, smooth pipe with tangentially injected swirl flow is better option than …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 3, 2015 · pp. 16–44 Read article
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Heat and Flow Characteristics of Jet Impingement: Literature Review
Abstract: AbstractA comprehensive review on jet impingement heat transfer and flow characteristics of impinging synthetic jets were compared with continuous jets. Considering all the single phase heat transfer jet impingement has maximum heat transfer rate. A number of experimental arrangements as done to study the jet impingement such as jet impingement on a solid flat surface, rough surface, concave surface, convex surface, etc. A large number of papers dealing with experimental …
Published in Recent Trends in Fluid Mechanics · Vol. 7, Issue 1, 2020 · pp. 1–8 Read article
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Thermo-hydraulic Performance of Annular-Finned Double-Pipe Heat Exchanger: Numerical and Experimental Investigation of Metallic and Polymer Composite Tube Wall Materials
Abstract: Double-pipe heat exchangers are central to the process industries — dependable, easily maintained, and straightforward to fabricate. Their conventional form relies on metallic tube materials, most often copper or stainless steel. Both metals conduct heat well, but they are dense, prone to corrosion in aggressive service environments, and increasingly at odds with the light-weighting goals that drive modern system design. Fibre-reinforced polymer composites, epoxy-based materials, and thermally enhanced thermoplastics such …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 891–909 Read article
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A Review on Solar Air Heater
Abstract: Solar energy has grown in importance in recent years as a result of the negative environmental effects of greenhouse gas emissions from fossil fuel combustion, as well as the rising cost of electricity generation as traditional energy sources become scarce. Solar air heaters are the most straightforward and cost-effective technique to harness solar energy. It converts solar energy into thermal energy for a variety of heating applications, including timber seasoning, …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 9, Issue 1, 2022 · pp. 29–32 Read article