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139 articles for “Surface energy”
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CFD Simulation on Ground Tube Heat Exchanger using Copper and Aluminum as Tube Material
Abstract: Renewable energy is free in nature and it must be brought into application. Due to use of air conditioning and its refrigerants global warming is a serious issue. Renewable energy is the main concept of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as fluent working medium. The air cools in summer and …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 6, Issue 2, 2020 · pp. 49–74 Read article
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Software Numerical Simulation on Earth Tube Heat Exchanger Where Air as A Flow Medium
Abstract: Renewable energy is free in nature and it must be brought into application. Due to use of air conditioning and its refrigerants global warming is a serious issue. Renewable energy is the main concept of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as fluent working medium. The air cools in summer and …
Published in International Journal of Computer Aided Manufacturing · Vol. 6, Issue 1, 2020 · pp. 19–45 Read article
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Predictive Maintenance of 6G Infrastructure Using Artificial Intelligence
Abstract: The transition to Sixth Generation (6G) wireless infrastructure introduces unprecedented complexity, characterized by massive densification, reliance on the Terahertz (THz) spectrum, dynamic cell topologies driven by Reconfigurable Intelligent Surfaces (RIS), and stringent requirements for Ultra-Reliable Low-Latency Communication (URLLC). Traditional reactive or fixed-schedule maintenance protocols are fundamentally inadequate for sustaining the necessary service continuity and energy efficiency in this hyper-connected, heterogeneous environment. This paper explores the critical role of Artificial Intelligence …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 11, Issue 2, 2025 Read article
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A Study on Sun Path of Coimbatore and Its Irradiation Effects on Buildings using Ecotect Software and Design Recommendations for Minimizing the Heat Gain
Abstract: Understanding the sun path graphically in a three-dimensional figure by means of software can help us to predict the effects of irradiation on the buildings at a specific location. The Ecotect software is a tool that gives a clear image of the movement of the sun all around the year with exact Azimuth and Altitude angles in both graphical and tabular format. This paper is a research based on the …
Published in International Journal of Architecture and Infrastructure Planning · Vol. 5, Issue 2, 2019 · pp. 36–47 Read article
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Comparative Studies on Production of Biodiesel from Waste Vegetable Oil (WVO) & Noctiluca Scintillans(NS)
Abstract: The world realized that the main source of energy from crude oil, which leads to the environmental concern and disappeared in few years. That’s how new resolutions are under study looking for alternate fuel to replace the fossil fuels. The research studies have been made in field, but none of which are on a large scale production locally in Oman. Based on scenario, Biomass (algae) can be produced to make …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 5, Issue 1, 2019 · pp. 23–36 Read article
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Optimization of 3D Printed Two-wheeler Suspension System
Abstract: The suspension is the very important criteria of a two-wheeler in order to improve the comfort for the operator or rider of the two-wheeler. In most of the two-wheeler’s shock absorbers are used as a suspension system to smooth out or damp shock impulse and dissipate energy by use of spring’s compression and relaxation property. The system consists of a spring which allows the frame and vehicle intact while riding …
Published in International Journal of Analog Integrated Circuits · Vol. 4, Issue 2, 2018 · pp. 51–57 Read article
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Thermal and structural properties of surface treated ragweed fiber reinforced biodegradable polylactic acid biocomposites
Abstract: Natural fiber-reinforced composites (NFRC) are becoming more popular as technological advance recognizes the need for eco-friendly materials. This work presents Giant ragweed (Ambrosia trifida) as a new composite reinforcement material into polylactic acid (PLA) matrix to form novel natural fiber-reinforced composites. Different types of retting techniques are utilized, and hydrogen peroxide retting is proven to provide the most optimized properties. The fibers are taken through subsequent extraction and grinding processes. …
Published in International Journal of Composite and Constituent Materials · Vol. 8, Issue 2, 2022 · pp. 13–31 Read article
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Interfacial Engineering and Performance Optimization of Jute-Fiber-Reinforced Epoxy Laminates
Abstract: The increasing environmental concerns associated with synthetic fiber reinforced polymer composites have driven substantial research interest toward naturally derived, biodegradable fiber alternatives. This study presents a comprehensive mechanical and thermal characterization of jute fiber reinforced epoxy composites fabricated via hand lay-up followed by compression molding. Jute fibers were subjected to alkali treatment using 5 wt% sodium hydroxide (NaOH) solution for 4 hours at ambient temperature to enhance fiber–matrix interfacial bonding …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 1, 2026 · pp. 52–64 Read article
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Enhancing the Heat Transfer in the Thermal Chimney by Attaching the Fin under CFD Analysis
Abstract: The primary and secondary heaters in heat exchangers were numerically evaluated at nominal temperatures of 140°C for the primary heaters, 100°C for the secondary heaters, and 20°C for the ambient temperature in order to validate the design idea for enhancing the air temperature. The “convective heat transfer” of air in a thermal chimney built to laboratory size using two different types of electrical heaters and a rectangular cross-section of constant …
Published in International Journal of Mechanics and Design · Vol. 9, Issue 2, 2023 · pp. 9–26 Read article
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An Energetic Materials for Sustainable Solutions
Abstract: Nanomaterials are typically described as engineered substances possessing at least one dimension between 1 and 100 nm. Materials at the nanoscale display distinctive or enhanced characteristics, such as increased chemical reactivity, superior sensing performance, and improved mechanical properties. Nanotechnology provides a straightforward, rapid, clean, and cost-effective approach for synthesizing a wide range of organic compounds, encouraging many researchers to transition from conventional synthetic techniques. This article aims to highlight the …
Published in International Journal of Energetic Materials · Vol. 12, Issue 1, 2026 · pp. 7–12 Read article
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An Experimental Study on Concrete by Replacement of Coarse Aggregate with Demolished Building Waste in Crushed Concrete
Abstract: A large amount of construction and demolition wastes are produced annually in India. These waste materials require a large place to dispose and then the disposal of wastes has become a severe problem. The continuous use of natural resources for making conventional concrete leads to the reduction in their availability and results in the increase of the cost of the coarse aggregate and fine aggregate. The possible use of recycling …
Published in International Journal of Concrete Technology · Vol. 4, Issue 1, 2018 · pp. 25–28 Read article
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Nanocoating and Electrospraying Techniques Used for Corrosion Mitigation of Aluminum in Nitrogen dioxide Environment
Abstract: Nitrogen gas absorbs moist air to produce nitric acid. It develops acidic medium for aluminum. It forms a corrosion cell on the surface of aluminum. The formation of corrosion cell is written as: Al|Al+3||H+|H2 thus Corrosion reactions accelerate on aluminum surface and Al is oxidized into Al+3 and the H+ ions is reduced into H2. This acid produces various forms of corrosion in aluminum like galvanic, pitting, stress, crevice, blistering, …
Published in International Journal of Environmental Chemistry · Vol. 6, Issue 2, 2020 · pp. 20–31 Read article
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Energy Conservation with use of Cool Roof Coatings
Abstract: Regions with hot and dry climate often experience very high levels of solar radiation, high ambient temperatures and relatively low specific humidity. The roofs of buildings in such areas are always exposed to Sun for long duration during the daytime. Solar radiation is responsible for heat transfer through the building roof. Actually, Solar radiation heat the roof which in turn reradiates the heat onto the ceiling and finally on to …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 2, Issue 2, 2016 · pp. 1–13 Read article
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PORTABLE SOLAR WATER HEATER
Abstract: This project explores the design of a portable solar water heater optimized for high-efficiency heat transfer in off-grid settings. The system utilizes the superior thermal conductivity of copper turnings, which serve as a heat exchanger to capture direct solar radiation. Using a closed-loop mechanism, a small pump circulates water from a storage tank through these copper coils, where it is rapidly heated before returning to the reservoir. This active circulation …
Published in International Journal of Mechanics and Design · Vol. 12, Issue 1, 2026 · pp. 19–25 Read article
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Thermal Analysis of Earth Heat Exchanger Using Air as a Medium
Abstract: Thermal energy is the main concept of an earth air tube heat exchanger (EATHE), which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as cooling medium. The air cools in summer and gets heated in winter due to the temperature difference between the air and underground surface. However, for the study of the surface heat convection study of model …
Published in International Journal of Computer Aided Manufacturing · Vol. 4, Issue 1, 2018 · pp. 1–17 Read article
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Revolutionizing Concrete Strength: The Role of Carbon Nanotube Reinforcements
Abstract: Abstract The integration of carbon nanotubes (CNTs) into concrete represents a revolutionary advancement inconstruction material technology. Carbon nanotubes, known for their exceptional mechanical,electrical, and thermal properties, offer transformative potential for enhancing the strength, durability,and functionality of traditional concrete. This study explores the role of CNTs as a nano-reinforcementmaterial, focusing on their impact on compressive strength, tensile capacity, and resistance to crackingand environmental degradation. By incorporating CNTs, concrete can achieve unprecedentedmechanical …
Published in International Journal of Structural Engineering and Analysis · Vol. 11, Issue 1, 2025 · pp. 27–31 Read article
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NANOTECHNOLOGIES FOR THE FUTURE
Abstract: The needs of the world are growing while the sources are decreasing. The existing systems have not been able to cope up this developing situation. It is likely that with the fast increasing population will worsen this situation. All types of sciences, commerce and arts have not been able to provide the solutions to this situation so far. Nanotechnology is the new field which provides us some hope to meet …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 2, Issue 1, 2016 · pp. 35–46 Read article
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The Himalaya—A Greatest Architectural Heritage and Tourism Destination of Earth World
Abstract: Mountains cover around 27% of the Earth’s land surface and contribute to the sustenance and well-being of 720 million people living in the mountains and billions more living downstream. In other way, we can say that over half the human population depends on mountains for water, food, and clean energy. The Himalayan region has a very important divine meaning for Hindus as a “sacred space”. For Hindus, it is not …
Published in International Journal of Architectural Heritage · Vol. 1, Issue 2, 2018 · pp. 5–10 Read article
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Charger Using Electromagnetic Radiation (EMR)
Abstract: All cell phones emit some amount of electromagnetic radiation (EMR). The radiation can even be converted into some amount of energy, which can be directly fed to the charger. This paper outlines the concept of converting EMR into power. So that it eliminates an external plug for charging. This is a convenient way of charging a mobile phone. For these purpose meta-surfaces, passive RFID tags can be used. Keywords: electromagnetic …
Published in International Journal of Analog Integrated Circuits · Vol. 1, Issue 2, 2015 · pp. 34–37 Read article
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Nanocatalyst for Transesterification of Fatty Acids into Biodiesel
Abstract: Global fuel consumption is increasing exponentially due to the ever increase in rate of industrial development. The continued usage of fossil fuels leads to severe environmental concerns and poses threat to the entire mankind. Biodiesel has gained more attention due to the rapid exhaustion of the fossil fuels and increase in price of conventional petroleum products. Transesterification of fatty acids from animal fat, vegetable oils, waste cooking oil, algae and …
Published in International journal of Nanobiotechnology · Vol. 1, Issue 1-2, 2015 · pp. 1–4 Read article