Search
124 articles for “Heat transfer”
-
Study and Thermal Analysis of a Rectangular Duct with Z-shaped Baffle Using Ansys
Abstract: This project aims to enhance heat transfer in a rectangular duct by utilizing Z-shaped baffles. It involves creating a 3D CAD model using SolidWorks and validating it in ANSYS Fluent 2019 R2. The study focuses on analyzing the effect of baffle arrangement, height, and angle on heat transfer rate. Comparative analysis is conducted between rectangular ducts with a 60° angle and heights of 4 mm, 6 mm, and 8 mm. …
Published in International Journal of Energy and Thermal Applications · Vol. 1, Issue 2, 2023 · pp. 14–30 Read article
-
Nanofluids: Advanced Synthesis Methods, Innovative Applications, and Future Directions
Abstract: Nanofluids, a novel mixture of nanoparticles and base fluids, is an innovative blend that has appeared as a transformative advancement in heat transfer and thermal management technologies. This study is going to discuss advanced synthesis methods, properties, and extensive applications of nanofluids in various fields, such as biomedical engineering, electronics cooling, solar energy, and machining. Optimization techniques such as nanoparticle selection, concentration control, and computational fluid dynamics modelling are also …
Published in Journal of Nuclear Engineering & Technology · Vol. 15, Issue 1, 2025 · pp. 1–11 Read article
-
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
-
Entropy Analysis of Unsteady MHD Bioconvective Nanofluid between Parallel Disks under Squeezing Motion and Multiple Slip Conditions.
Abstract: This research offers valuable insights for improving heat transfer and minimizing entropy generation in engineering systems that involve nanofluids and microorganisms. It investigates the unsteady squeezing bioconvection flow of a nanofluid between two parallel disks, with a focus on entropy generation, flow dynamics, heat transfer, and the concentration of both nanoparticles and microorganisms. The lower disk is stretched horizontally and subjected to suction, while the upper disk moves vertically, creating …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 28, Issue 1, 2025 · pp. 17–40 Read article
-
Review of Thermal Performance of Solar Air Heaters: Influence of Composite Materials and Advanced Thermal Storage Techniques
Abstract: Solar air heaters (SAHs) are essential devices for capturing solar energy and converting it into heat, finding applications in steam generation, refrigeration, agricultural drying, and space and water heating in residential and commercial environments. However, the thermal performance of SAHs is often limited by the low heat transfer coefficient of air and the absence of solar energy during nighttime, impacting efficiency and reliability. To address these challenges, this study explores …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 488–506 Read article
-
Numerical Simulation of Transient Free Convection in a Rectangular Cavity Filled with Porous Material Using Finite Element Formulations
Abstract: In this study, the finite element method is used to quantitatively explore transient free convection in porous cavities in order to understand the flow characteristics and heat conduction processes in the square cavities. In comparison to an uniform temperature gradient, the left wall is swiftly heated and the right wall is allowed to cool to a specific temperature. The horizontal walls are insulated on both sides. Dimensionless representations of the …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 1–10 Read article
-
Thermal Effects in High-Power Laser Systems: Modeling and Mitigation
Abstract: High-power laser systems are increasingly employed in industrial manufacturing, defense, medical procedures, and scientific research due to their ability to deliver high energy density with excellent spatial coherence. However, the performance and reliability of these systems are significantly influenced by thermal effects arising from optical absorption, non-radiative recombination, and inefficient heat dissipation within laser gain media and optical components. These thermal phenomena lead to adverse effects such as thermal lensing, …
Published in International Journal of Manufacturing and Production Engineering · Vol. 3, Issue 2, 2025 · pp. 9–13 Read article
-
The Impact of High-Performance Computing on FEA and CFD Simulations
Abstract: The integration of advanced simulation techniques, such as Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD), has transformed mechanical design by enabling engineers to develop optimized, efficient, and reliable systems. FEA is widely applied to analyze structural mechanics, thermal stresses, and vibrations, offering detailed insights into material behavior and design performance. On the other hand, CFD focuses on simulating fluid flow, heat transfer, and aerodynamic performance, making it indispensable …
Published in Journal of Aerospace Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 26–35 Read article
-
Comparative Investigation of Solar Still by Varying Basin Water Depth and Integrating Energy Storage Material and Steel Wool Fibre
Abstract: The main obstacle to human life in the modern age was the unequal distribution of drinking water on Earth. The demand for drinking water is increasing due to population growth and industrial exploitation, while supply levels are essentially unchanged. Because of its simplicity in construction, techno-economic advantages, and environmental friendliness, solar energy is still regarded as one of the best methods for turning saline into potable water. The main disadvantage …
Published in Trends in Machine design · Vol. 12, Issue 1, 2025 · pp. 1–11 Read article
-
Energy-Efficient Thermal Management: Advanced Cooling Techniques for Electronics, Automotive, and Aerospace Applications
Abstract: The growing demand for energy-efficient systems across diverse industrial sectors, including electronics, automotive, aerospace, and renewable energy, has elevated the importance of advanced thermal management techniques. Effective heat dissipation is critical not only for maintaining optimal operating conditions in electronic devices but also for enhancing the performance and reliability of broader energy and mechanical systems. Inadequate thermal management can compromise energy efficiency, reduce component lifespan, and increase environmental impact. This …
Published in International Journal of Energy and Thermal Applications · Vol. 3, Issue 1, 2025 · pp. 18–23 Read article
-
An Experimental Investigation on the Determination of Critical Micelle Concentration (CMC) Of Various Surfactants Using the Surface Tension Method
Abstract: This study primarily focuses on the experimental investigation for determining the critical micelle concentration (CMC) of various surfactants that are commonly employed to enhance the stability of nanoparticles in base fluids. In this context, three surfactants belonging to the anionic category—Sodium Dodecyl Sulfate (SDS), Sodium Lauryl Sulfate (SLS), and the bio-surfactant Rhamnolipid—were selected, along with one non-ionic polymer, Polyvinylpyrrolidone (PVP), which is used as a surfactant. The CMC of each …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 145–153 Read article
-
Advances in Pipe Flow Systems, Turbulence, and Combustion Processes in Fluid Mechanics
Abstract: Fluid mechanics plays a critical role in the design and optimization of engineering systems involving fluid transport, energy conversion, and thermal processes. This review presents recent advances in pipe flow systems, turbulence behavior, and combustion processes, highlighting their interdependence in modern applications. Pipe flow systems are essential in industries such as water distribution, oil and gas transport, and chemical processing, where flow characteristics are influenced by factors such as pressure, …
Published in Recent Trends in Fluid Mechanics · Vol. 13, Issue 1, 2026 · pp. 1–7 Read article
-
Fractional Calculus-Based Analysis of Magneto-Thermal Nanofluid Flow Over Stretching and Shrinking Surfaces
Abstract: This study presents a comprehensive investigation of magneto-thermal hybrid nanofluid flow over stretching and shrinking surfaces using a fractional calculus framework to capture the memory and hereditary characteristics of complex fluid transport phenomena. The proposed model incorporates the effects of magnetic field intensity, thermal radiation, viscous dissipation, Brownian motion, and thermophoretic diffusion on the velocity and temperature distributions within the boundary layer region. A fractional-order derivative formulation is employed to …
Published in Recent Trends in Fluid Mechanics · Vol. 13, Issue 2, 2026 Read article
-
Enhancing the Performance of Evacuated Tube Heat Pipe Solar Collector Using CuO Nanofluid
Abstract: Renewable energy is an important component of sustainable development technologies that meet current demands without risking future generations' ability to meet their own. Due to fast expanding energy consumption and environmental concerns, many international scholars are seeking an alternate approach to fulfill future energy demand. Due to its abundance and pure nature, solar energy appears to be the most enticing option in this case. Because of their ease of use, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 393–407 Read article
-
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
-
Psychometric Analysis of an Induced Cooling Tower in a Humid Condition
Abstract: An Induced Cooling Tower (ICT) is an energy transformation device that facilitates heat and mass transfer by leveraging ambient conditions. ICTs are particularly effective in applications requiring a large heat transfer surface area, utilizing evaporative cooling of ambient air to cool hot steam. The performance of an ICT is significantly influenced by ambient humidity and temperature, making these environmental factors critical in its design and operation. As such, ICTs are …
Published in Journal of Thermal Engineering and Applications · Vol. 12, Issue 3, 2025 · pp. 22–29 Read article
-
Liquid-Cooled Battery Thermal Management System: A Numerical Investigation of Effect of Coolant Path and Flow Rate Optimization
Abstract: Battery thermal management system (BTMS) is crucial for ensuring the safety and performance of battery packs in electric vehicles. Liquid cooling is one of the most effective methods for BTMS, but the choice of coolant, fluid path and its flow rate can affect the heat transfer efficiency and the pressure drop. In this paper, a numerical simulation of a liquid-cooled BTMS using three designs with water as a coolant has …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 11–18 Read article
-
Experimental Investigation on Thermal Conductivity and Viscosity of Phase Change Material (NaNOᴣ and KNOᴣ) with Different Concentrations of ZnO Polymer Nanofluids for Solar Energy Absorption
Abstract: When evaluating the effectiveness of solar heat absorption methods or solar thermal energy storage systems (TESS), heat transfer fluid is a crucial element. Thermal conductivity and usable heat obtained for any industrial or immediate power plant efficiency are improved by the distinctive refining of Heat Transfer Fluid (HFT). The phase change material used in this study, known as solar salt is a blend of 60% NaNO3 and 40% KNO3. It …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 25–35 Read article
-
Fluent Simulation & Analysis of Earth Heat Exchanger with Air as a Cooling Medium
Abstract: Because of the temperatures differential between the environment and the subsurface, an Earth Air Tube Heat Exchanger (EATHE) uses the thermal energy of the ground for air conditioners in the winter and air cooling in the summer. Everyone can lower the amount of energy needed for space heating or cooling with the aid of EATHE. However, it is challenging to create precise energy simulations and designs for calculating surface heat …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 1, 2024 · pp. 18–26 Read article
-
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