Search
42 articles for “Ducting System”
-
Silent Submarine Propulsion with High-Efficiency Magnetohydrodynamic Drive
Abstract: Magnetohydrodynamic (MHD) propulsion is an exciting technology that can be easily incorporated into a new submarine or existing one can also be upgraded by replacing the propeller drive with a MHD drive without difficulty. This new technology would provide many advantages like a stealth operation, no cavitation, greater maneuverability, increased payload, addition of an emergency drive system, etc. The design of an MHD motor is very simple and consists of …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 1, 2025 · pp. 41–55 Read article
-
Automation of 1.5tr Air Conditioning Systems Used in Different Cabins in Different Areas
Abstract: India is the world's most populous country and temperatures in many states regularly exceed 40°C. Therefore, people living in humid climates need a means to control temperature. Scientists have determined that human comfort is between 22°C and 27°C. This research determines all the properties of air relevant to the operation of water pipes. Exploring automation in air conditioning systems with Passive Infrared Sensor is to develop and implement intelligent climate …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 1, 2024 · pp. 1–8 Read article
-
Management of Domestic Water Closed Loop System
Abstract: The paper describes a new technological process to reuse, thermally and hydraulically, the water inhome installations. The aim of the process is to reduce water wasting and take advantage of residualthermal energy to minimize energy expenditure. The system is especially developed for homeinstallations although it is also suitable for larger facilities. Filtering processes based on porous mediaensure the physical and chemical water quality while chlorination or disinfection by ultravioletradiation guarantees …
Published in Journal of Water Resource Engineering and Management · Vol. 10, Issue 3, 2023 · pp. 12–22 Read article
-
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
-
Solar-Responsive Photo-Thermal Polymer Composites with Carbon Nanostructures for On-Demand Water Purification
Abstract: The development of solar-responsive polymer nanocomposites offers a sustainable pathway for water purification. In this work, polyvinyl alcohol (PVA) films reinforced with graphene nanoplatelets (GNPs) and multi-walled carbon nanotubes (MWCNTs) were fabricated and systematically investigated for their mechanical, thermal, viscoelastic, and thermal transport properties. Neat PVA displayed moderate tensile strength (~38 MPa) and high elongation (~165%), whereas 1.0 wt% nanofiller loading enhanced tensile strength to ~52 MPa and modulus to …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 199–209 Read article
-
Effect of Fiber Weight Fraction on the Mechanical Performance of Calotropis Gigantea Fiber-Reinforced Polyester Composites
Abstract: Natural fiber-reinforced composites have attracted more attention as environmentally friendly substitutes to synthetic materials since the move towards a sustainable approach to engineering materials has gained in popularity. This paper focuses on the potential use of Calotropis gigantea (CG) stem fibers as laminate reinforcement with bio-composites made through an unsaturated polyester resin (GP) system. Super strength fibers were pulled out, treated with alkaline to boost interfacial adhesion, and positioned in …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 339–349 Read article
-
Marine Algal Microfiber and Agro-Waste Reinforced Crosslinked Polymer Composites for Sustainable Coastal Materials
Abstract: Crosslinked bio-polymer composites reinforced with marine algal microfibers and agro-waste fillers were fabricated and systematically characterized for sustainable coastal applications. Mechanical testing revealed that tensile strength increased from 18.5 MPa for neat polymer to 25.1 MPa at 20 wt.% reinforcement (~35% improvement), while the flexural modulus improved from 0.72 GPa to 1.02 GPa (~42% increase). Impact strength, however, decreased from 3.8 kJ/m² for neat polymer to 2.9 kJ/m² at 30 …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 210–223 Read article
-
Analysis of Ageing and Degradation Behavior of Polyamide-12 for Sustainable Additive Manufacturing
Abstract: Additive Manufacturing (AM), particularly High-Speed Sintering (HSS), has emerged as a transformative technology capable of producing complex thermoplastic parts with high efficiency and minimal material waste. The HSS process involves selective deposition of radiation-absorbing ink followed by infrared heating to consolidate polymer powders-most commonly polyamide-12 (PA12). While PA12 is widely used due to its excellent thermal stability and mechanical properties, the sustainability of HSS strongly depends on the reuse of …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 136–154 Read article
-
Retrofitting of RC Beams Using FRP and FRCM
Abstract: The deterioration of reinforced concrete (RC) structures due to various factors such as aging, aggressive environments, or increased loads poses significant challenges to structural integrity and safety. Retrofitting techniques have emerged as effective solutions to enhance the structural performance of existing RC members. Among the retrofitting options, the use of Fibre Reinforced Polymer (FRP) and Fibre Reinforced Cementitious Matrix (FRCM) systems have gained considerable attention in recent years. The study …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 31–40 Read article
-
Effects of Composition on Structure & Mechanical Property of TiAl Based Intermetallic Compounds
Abstract: The effects of Al content and ternary additions such as Mo, V and Si in as cast g based alloys made by plasma arc melting on solidification structures and mechanical properties were studied. The Columnar g /a2 lamellar structures in Al-lean alloys due to primary a solidification had higher room temperature fracture strength and strain than g phase structures through the reaction of L + a = g in Al-rich …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 3, 2021 · pp. 1–10 Read article
-
The Transformative Journey of Pregnancy: Insights into Maternal Adaptations
Abstract: During pregnancy, a woman’s body changes in many ways because of hormones. These changes can sometimes be uncomfortable, but most of the time they are normal and enable her to nourish and protect the fetus, prepare her body for labor, and develop her breasts to produce milk. During pregnancy, changes in hormone levels drive a wide range of physical transformations in a woman’s body, all of which play an essential …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 14, Issue 3, 2024 · pp. 84–92 Read article
-
Red Mud Particles' Impact on the Mechanical Properties and Microstructure of AA6005 Composites for Brake Rotor Applications
Abstract: There is increasing focus on utilizing industrial waste as reinforcement in metal matrix composites, driven by the demand for eco-friendly and cost-effective materials in automotive applications. With an emphasis on their possible use in braking rotors, this study examines how red mud particles affect the microstructure and mechanical characteristics of AA6005 aluminum alloy composites. Red mud, a byproduct of the Bayer process, is a good low-cost ceramic reinforcement because it …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 573–581 Read article
-
Weldability of Ferritic Stainless Steel
Abstract: The ferritic stainless steels are generally considered less weldable than austenitic stainless steels. In case of welding of first-generation ferritic stainless steels, rapid grain growth of ferrite takes place in both the fusion zone and heat-affected zone. These coarse grains have very low ductility and toughness. Excessive grain growth can be avoided by using lower welding heat input and or certain types of additives. They are lower in cost and …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 185–194 Read article
-
Enhancement in Performance of Conventional concrete mixes by using hybridization with steel & polypropylene fibres
Abstract: This experimental study evaluates the influence of incorporating steel and polypropylene fibers on the mechanical performance of high- performance concrete (HPC) across M30, M35, and M40 grades. This research focuses on evaluating the mechanical properties of High- Performance Concrete (HPC) enhanced with a hybrid reinforcement system consisting of steel fibers (SF) and polypropylene fibers (PPF). Steel fibers are utilized to improve the compressive and tensile strengths, while polypropylene fibers contribute …
Published in Journal of Structural Engineering and Management · Vol. 12, Issue 3, 2025 Read article
-
Enhanced Mechanical and Tribological Performance of Magnesium–Boron Carbide Composites Fabricated via Stir Casting for Lightweight Structural Applications
Abstract: This study investigates the fabrication and evaluation of properties of magnesium (Mg) matrix composites reinforced with boron carbide (B₄C) for lightweight structural applications. Stir casting was employed to incorporate B₄C particles at varying weight fractions (0%, 3%, 6%, and 9%) into the magnesium matrix. The influence of B₄C on density, porosity, hardness, tensile strength, and wear resistance was systematically examined. Theoretical density increased from 1.74 g/cm³ (pure Mg) to 1.88 …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 29–39 Read article
-
Flaws and Defects in Crystals
Abstract: Crystalline materials are defined by their long-range atomic order; however, no real crystal is completely free from imperfections. This article provides a comprehensive overview of the various types of crystal defects and imperfections that occur in solid materials and their significant influence on material properties. Point defects, including vacancies, interstitials, and substitutional atoms, are examined alongside line defects such as edge and screw dislocations, as well as planar defects encompassing …
Published in International Journal of Crystalline Materials · Vol. 2, Issue 2, 2025 · pp. 1–15 Read article
-
Comparison of Conventional RCC Columns, Steel Columns and Composite Columns
Abstract: Worldwide, the steel industry is expanding almost everywhere. Compared to the USA, EU, and other developed nations, India uses less steel in the construction industry. Additionally, India's cities have some of the highest population densities per square kilometre, which limits horizontal construction growth and favours vertical development. Steel structures are more ductility and can undergo more deflections while concrete structures are larger and attracts more seismic weight. Hybrid construction combines …
Published in Journal of Structural Engineering and Management · Vol. 10, Issue 3, 2023 · pp. 35–44 Read article
-
Vibration Mechanics of Hybrid Al 5083/SiCp/Fly Ash Composite Plates for its Use in Dynamic Structures
Abstract: Metal Matrix composites are a unique class of materials, with specific characteristics. The selection of reinforcement phase for reinforcing the metal matrix depends on many parameters and is a major concern, Silicon carbide particulates (SiCp) enhances the hardness of specimens but on the other hand it induces brittleness in the specimen which is of major concern, henceforth fly ash particulates are thought of as an alternative reinforcement for improving the …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 1, 2017 · pp. 11–18 Read article
-
Study of Diagonal Ties and Metal Plate as a Confining Reinforcement for RCC Short Columns
Abstract: Column is a most important structural member in the structural system. Even after the strong column weak beam theory used in the design of the structural member it has been observed that the many times structure collapsed due to the failure of the column. There are many reasons of the column failure but out of that major reason of the failure is ineffective confinement of the column specimen and uneven …
Published in Journal of Structural Engineering and Management · Vol. 8, Issue 3, 2021 · pp. 39–46 Read article
-
Structure–Property Correlation of Infill Topology and Density on Tensile and Flexural Performance of FDM-Printed PLA and ABS
Abstract: Additive Manufacturing (AM), particularly Fused Deposition Modeling (FDM), has become a widely adopted manufacturing technology due to its design flexibility, low cost, and capability for rapid prototyping. However, the mechanical performance of FDM-printed components is strongly influenced by internal structural parameters such as infill pattern and infill density, in addition to the intrinsic material behaviour. This study investigates the structure–property relationship between infill topology, density, and mechanical performance of PLA …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 4, Issue 1, 2026 · pp. 26–37 Read article