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343 articles for “heat transfer”
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A Review on the Design of Vortex Flow Generator to Optimize Heat Transfer Enhancement in a Straight Tube
Abstract: This research focuses on the design and evaluation of a vortex flow generator (VFG) for improving heat transfer performance in a straight circular tube. Vortex generators create longitudinal and swirling secondary flows inside the tube, which enhance fluid mixing, disturb the thermal boundary layer, and increase convective heat transfer. Vortex flow generators placed inside straight tubes are widely used to improve heat transfer performance in thermal systems. These devices create …
Published in Trends in Mechanical Engineering & Technology · Vol. 16, Issue 3, 2026 Read article
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CFD Analysis of Effect of Forced Vibration on Heat Transfer in Laminar Flow
Abstract: Vibration of pipes conveying fluid is an important problem present in installations which are normally used in petroleum industries, hydropower systems, food processing industries, chemical plants and hydraulic power systems. Research is needed to further understand and be able to predict the flow behavior and investigate ways of improving their processing. The current work involves the numerical simulation of flow and heat transfer under an externally imposed mechanical vibration. CFD …
Published in Journal of Thermal Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 1–9 Read article
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A Computational Study on Convection Heat Transfer in a Differentially Heated Cavity Using Nanofluids
Abstract: Heat transfer is an integral part of thermodynamics. It is used to study the heat and mass transfer in and out of the system during a process; the medium may vary from solids, liquids and gases. The three major divisions of heat transfer are conduction, convection and radiation. In this paper we have discussed the heat transfer through nanofluids particle and water. Water is a very common fluid used in …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 1, 2015 · pp. 14–18 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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Experimental Investigation of Overall Heat Transfer Coefficientin Drop wise Condensation
Abstract: The experiments are performed to study the heat transfer characteristics over a drop wise condensation. The phenomenon of drop wise condensation is in which the condensate forms into drops rather than covering the entire cooling surface with a continuous film. In drop wise condensation, heat transfer coefficient produced is 2 to 10 times greater than those produced by film wise condensation. Hence drop wise condensation is desirable as it is …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 17–21 Read article
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Optimizing Heat Transfer Performance in CO2 Finned-Tube Gas Coolers: A Comparative CFD Study of Design Variations
Abstract: Computational fluid dynamics (CFD) simulations and mathematical analysis are used in this study to examine the heat transfer efficiency of CO2 fined tube gas coolers. To maximize heat transfer efficiency, CFD simulations were carried out on a variety of gas cooler designs with variable fin geometry, including offset strip fins, using the ANSYS Fluent program. Under the baseline design, there was a finned tube cooler measuring 610 mm in length, …
Published in Recent Trends in Fluid Mechanics · Vol. 11, Issue 3, 2024 · pp. 1–13 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 Roughened Solar Air Heater for Heat Transfer and Thermal Efficiency
Abstract: The use of artificial roughness on the absorber plate is the most effective technique to enhance the thermal performance of solar air heaters. Experimental investigation of distinct roughness geometries shows that the enhancement in the rate of heat transfer is accompanied by considerable rise in temperature. In this paper some distinguished roughness geometries have been compared on the basis of heat transfer rate and thermal performance. The objective of this …
Published in Journal of Experimental & Applied Mechanics · Vol. 6, Issue 1, 2015 · pp. 49–56 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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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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Enhancement of Heat Transfer Rate in Cooler by using Nanofluid
Abstract: The paper aims at the study of the cooling system in the household cooler by replacing honeycomb meshing into the radiator. Heat transfer from the radiator can be improved by maximizing the heat transfer area and increasing the heat transfer rate. In this paper, it is focused on increasing heat transfer rate by using MgO nanoparticles in suspension. A Thermophysical property has been increased in heat transfer material. Water was …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 3, 2019 · pp. 1–11 Read article
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Estimation of Heat Transfer Rate with Conjugate Gradient Method
Abstract: In thermal system, a considerable amount of heat leftovers with the exhaust flue gases. Appropriate arrangement to recover this waste heat may contribute to the enhancement of overall utilization of the energy supplied to the thermal system. In this study, heat transfer rate is approximately determined using inverse heat transfer concept. Simulated temperature readings have been taken at the measurement location on the mild steel rod. Conjugate gradient method (CGM) …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 1, 2018 · pp. 1–8 Read article
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Heat Transfer by Arc Welding for A Similar Material Joint
Abstract: Electric arc welding (EAW) is a traditional fabrication process used in wider domestic, commercial and industrial application. Welding is a joining of two materials with the application of heat at the molecular level with the application of heat and pressure. Many materials used for welding application for different joining process. Maraging steel is special steel used for production of different air-craft components. Maraging material is used for heavy tools, producing …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 2, 2025 · pp. 1–13 Read article
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Review on Suitability of Ionic Liquids for Heat Transfer Applications
Abstract: The thermophysical properties of thermal fluids play a key role in the design of heat transfer equipment. Better their properties, greater is the efficiency of the heat transfer equipment. The field of ionic liquids (ILs) is growing, at a very fast pace, as many beneficial properties of these are identified and utilized. The suitability of the ionic liquids as thermal fluid can be assured by examining their thermophysical properties. In …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 3, 2016 · pp. 40–51 Read article
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Experimental Investigation of Heat Transfer Enhancement Using Cross Inserts Having Different Pitch Rectangular Cuts
Abstract: This work presents experimental investigation of heat transfer enhancement using strip insert with cross configuration having rectangular cut. The heat transfer enhancement study in a circular copper tube of 10 mm internal diameter is carried out using three different inserts. The three inserts are of cross configuration with rectangular cuts of different pitches. The heat transfer enhancement in hydro-dynamically developed and thermally developing fluid region is studied. It is found …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 2, 2014 · pp. 1–6 Read article
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Mathematical Modelling on Unsteady Blood Flow and Unsteady Heat Transfer Through a Stenosed Artery with Hematocrit and Slip Velocity
Abstract: A theoretical investigation concerning variable viscosity dependent on percentage concentration of red blood cell interm of total volume of blood (hematocrit) and slip velocity on unsteady flow of blood and heat transfer has been carried out. The analytical expressions for the flow characteristics and the heat transfer rate, including the velocity profile, volumetric flow rate, flow resistance, wall shear stress, and temperature profile, were obtained using the weighted residual method, …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 12, Issue 2, 2025 · pp. 16–36 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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Study and Influence of heat transfer Characteristics in a Heat Exchanger by using Nanofluids: A Review
Abstract: AbstractHeat transfer play an important role in various applications like Radiator in Automobiles, Refrigerators, Electronic equipment’s etc. Therefore, heat transfer effectiveness can limit the related power utilization. The method for increasing heat exchanger effectiveness is to build higher conductivity of working liquid. The endeavor of this review summarizes the different research work articles on the improvement of the various heat transfer characteristics in heat exchangers utilizing nanofluids on two categories. …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 24–29 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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Dependency of pure liquid pool boiling heat transfer coefficient to bubble contact angle on roughened Brass heater in new model
Abstract: Heat transfer coefficient of nucleate pool boiling Nucleation is a basic part of phase transformations, which plays an important role in understanding and describing any phase change processes. For a boiling process, nucleation appears in the initial stage, and directly affects bubble formation and boiling intensity. According to the heterophase fluctuations which induce phase transition, the phase change has two main types. Classically, phase change caused by the fluctuation with …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 2, 2022 · pp. 29–36 Read article