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277 articles for “heat-conduction”
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Advanced Polymer Composite Coating for Thermal Performance and EEE Improvement of a Solar Energy Harvesting System
Abstract: The integration of carbon-based nanomaterials with polymer matrices presents a promising route toward advancing solar energy harvesting technologies. In this study, nanoparticle-blended polymer composite coatings are examined to evaluate the performance of FPSC, utilizing an unconventional collector setup and a multiple-carbon-based nanoparticle-blended paint polymer. Nanomaterial provides a crucial alternative for enhancing their thermal efficiency. The research findings reveal that the deformation of nanomaterials improves the heat efficiency of solar collectors. …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 1197–1222 Read article
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Effect of Ply Orientation on Thermal Erosion and Conductivity of Silica Phenolic Composites Under Oxy-Acetylene Flame
Abstract: The thermal and erosion performance of fiber-reinforced composites is highly sensitive to fiber architecture, matrix chemistry, and processing techniques, factors that have shaped development of advanced thermal protection systems (TPS) over past two decades. Silica phenolic (SP) composites, in particular, are widely employed in aerospace and defense applications due to their flame resistance, char stability, and ability to withstand severe thermal shock. However, optimizing thermal conductivity while improving erosion resistance …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 273–283 Read article
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Numerical Investigation of Effect of SiO2–Water Nanofluid on Convective Heat Transfer and Pressure Drop of a Novel Heat Sink
Abstract: In this work, SiO2–water nanofluids are utilized to improve heat transfer characteristics of a novel heat sink. Commercial Fluent and Gambit package is utilized to run the test. Two different thermal conductivity models previously introduced by other researchers are tested and it is shown that one of them predicts the heat transfer coefficients better in comparison to the other. The range of volume fractions are from 0.5% to 2%. Also, …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 2, 2015 · pp. 9–13 Read article
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Performance Analysis of Graphene Reinforced Sug-ar-Alcohol Based PCM for Thermal Energy Storage System
Abstract: The thermal-conductivity of the Phase Change Materials (PCMs) of thermal heat storage systems is improved by distributing nano-particles in the basic PCM for a faster rate of heat transfer. During the charging and discharging procedures, the heat transfer properties of the newly created Sugar-Alcohol based PCM dispersed with 1.0 wt% graphene nanoparticles in a shell and helical tube storage tank were examined. The helical tube configuration caused the melting and …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 133–147 Read article
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Design and Analysis of Cantilever Optomechanical Resonator
Abstract: Solar energy harvesting is one of the leading branches of research in the world. Sun is the greatest source of energy on earth. A lot of techniques are developed in order to tap this energy as much as possible. Optomechanical resonance is a very novel approach for achieving this objective. Solar energy is used to heat a cantilever beam which vibrates at its natural frequency. Due to vibration the beam …
Published in Trends in Machine design · Vol. 2, Issue 1, 2015 · pp. 21–25 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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Dielectric Responses of Hybrid Polymer Matrix Composites at 2–3 GHz Microwave Frequencies
Abstract: AbstractMeasurement of dielectric properties of polymeric materials in the 2–3 GHz frequency region is very important for strategic applications such as communication electronics, rapid prototyping, and radiation assisted heating. As per international standards for industrial, scientific and medical applications (ISM) 0.9, 2.45 and 5.8 GHz microwaves can be used both for heating and communication purposes, of this 2.45 GHz is most widely used frequency, hence it is important to characterize …
Published in Journal of Polymer & Composites · Vol. 3, Issue 1, 2015 · pp. 1–11 Read article
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Ionic Conductivity of Chain Extension Supramolecular Polymer Material based on Reactive Hydrogen Bonding Motif
Abstract: AbstractSelf-assembly of low molecular weight oligomers possessing good mechanical properties at room temperature and having a low melt viscosity at elevated temperatures are of interest for many applications, such as hot melts and thermoplastic elastomers. Association between end groups can be based on a variety of secondary interactions, such as Vander Waals, hydrophobic, ionic interactions, or hydrogen bonding. A low molecular weight poly (ethylene glycol) (PEG) was functionalized with 2-Ureido-4[1H] …
Published in Journal of Polymer & Composites · Vol. 2, Issue 1, 2023 · pp. 30–36 Read article
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Enhancing Energy Efficiency in HVAC Systems: A Comprehensive Study of EC+ Fans, VFDs, and AI Integration
Abstract: This research paper explores the integration of EC+ fans with Variable Frequency Drives (VFDs) and Permanent Magnet (PM) motors to enhance energy efficiency and operational performance in heating, ventilation, and air conditioning (HVAC) systems. An extensive energy audit was conducted at the BidP plant in Bangalore, focusing on air handling units (AHUs) in Hangar 101. The audit revealed substantial variations in fan efficiency, secondary fan performance, power consumption, and airflow …
Published in Trends in Machine design · Vol. 11, Issue 3, 2024 · pp. 44–54 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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AEROGELS – A VALUE ADDITION TO HARVEST SOLAR ENERGY
Abstract: Aerogels are a class of synthetic porous ultralight material that was created in 1930 and derived from a gel, in which the liquid component has been replaced with a gas without collapsing the gel structure by freeze-drying. It is made of silica, but carbon, iron oxide, gold, copper, polymer etc. can also be used. During freeze drying the liquid in the gel is slowly dried off without collapsing the solid …
Published in Journal of Thermal Engineering and Applications · Vol. 9, Issue 2, 2022 · pp. 23–39 Read article
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Deformation and Densification Behaviour of Sintered Aluminium Alloy and Chromium Carbide Metal Matrix Preforms
Abstract: This paper presents comprehensive experimental results focused on the deformation and densification behavior of sintered AA2618 - 2% Cr3C2 metal matrix preforms. The study specifically examines preforms with varying aspect ratios subjected to a cold upsetting process. To create the powder preforms, an initial theoretical density of 89% was achieved using a cylindrical die on a 600 kN hydraulic press. The sintering process was conducted in an electric muffle furnace, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 125–131 Read article
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Experimental Validation with CFD Analysis of Radiation Shield Plate for Cryopump Application
Abstract: Cryopump is used in fusion reactor to evacuate the plasma exhaust from the torus vessel and to achieve the ultra high vacuum. The radiation shield is an important part of cryopump as it prevents direct radiation heat load on cryopanels from outer shell. A sample of radiation shield plate was tested for pressure drop and heat transfer. It consists of polished stainless steel sheets which are spot welded in diamond …
Published in Journal of Experimental & Applied Mechanics · Vol. 6, Issue 1, 2015 · pp. 19–22 Read article
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Effective Design of Riser for Defect-Free Casting
Abstract: Accurate design of riser helps in producing a defect free casting part. Inaccurate design of riser results in defects like hot spot, shrinkage and blow holes. Present paper focuses on the study of the different parameters occurring during a solidification process, equation which governs the solidification problem and different boundary conditions which play vital role during heat transfer in a solidification process. A literature study is also been conducted in …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 2, 2017 · pp. 23–27 Read article
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Enhancement of Horizontal Jet Impingement Heat Transfer Analysis on Vertical Flat Plate
Abstract: This research investigates the heat transfer characteristics and heat flux distribution associated with parallel jet impingement on a vertical flat plate. A comprehensive computational fluid dynamics (CFD) analysis is carried out and systematically validated against available experimental data to ensure the accuracy and reliability of the numerical model. The jet length is maintained constant at 12 mm, while the jet-to-plate separation distance is varied at 6, 12, 18, and 24 …
Published in Journal of Experimental & Applied Mechanics · Vol. 17, Issue 1, 2026 · pp. 65–80 Read article
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Comparative Study of Various Injection Methods for Reducing Engine Heat of Internal Combustion Engine
Abstract: To maintain a proper engine temperature and better combustion of internal combustion engine anexperimental study is conducted with mixing additional substance into the combustion chambermixed with petrol. The additional substance added are water, hydrogen and methanol. Out of thethree substances mixed with the fuel, the overall engine temperature and combustion is identified.The injection method is organized using a fuel injection system or by a carburettor. Three differentmethodswerestudied,includingmethanol,water,andhydrogen.Theenginewasnaturallyaspirated and operated at …
Published in Trends in Mechanical Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 7–17 Read article
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Assessment of Engine Performance with Perforated and Solid Fins
Abstract: Abstract Fins increases the heat transfer from a heat generated device by increasing the surface area of it. Fin with holes or perforated fins increases the surface area available for heat removal but also increases the intensity of the air flow, which further increases the heat removal. A two wheeler engine with fins having circular perforation has been designed in the present work. ANSYS 16.0 has been utilized to solve …
Published in Journal of Thermal Engineering and Applications · Vol. 3, Issue 3, 2016 · pp. 1–7 Read article
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Performance Evaluation of Thermoacoustic Refrigeration System
Abstract: Today cooling technologies are going through a transformation phase. The advent of ozone layer depletion and global warming caused by the use of synthetic refrigerants has necessitated a search for alternative cooling technologies. Out of the several technologies which are emerging as alternatives, one technology that can provide cost effective refrigeration without using any of the environment degrading refrigerants is the thermoacoustic refrigeration system. Ideally, this device can be powered …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 1, 2014 · pp. 22–29 Read article
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Utilization of Phase Changing Material for Enhancing the Thermal Performance of Engine
Abstract: AbstractThis paper represents an experimental investigation of light duty petrol engine. This engine is utilizing the wasted energy in the form of heat to improve the start-up time of engine. The complete experiment has been carried out to for selecting best suitable PCMs by conducting experiments on Maruti 800 engine. The aim of the present research work is to reduce starting time of engine by utilizing the heat stored in …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 9, Issue 1, 2018 · pp. 28–35 Read article
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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