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64 articles for “duct design”
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Analysing the Deep Hole Drilling Characteristics of AISI 316 Alloy Using Peck Drilling Approach
Abstract: This study aims at the deep hole drilling characteristics of AISI 316 alloy utilizing the Peck drilling procedure. It is well-established that hole is the most prevalent machining process, requiring precise techniques to achieve optimal cutting conditions. AISI 316 has high corrosion resistance and mechanical features. It is widely utilized in the aerospace, vehicle, aircraft, and other industries. Due to its high modulus of elasticity, reactivity at high cutting speeds, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 14–28 Read article
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Structural and Elasto-Mechanical Properties of Half Heusler Alloy CoHfBi as Ferromagnetic Semiconductor
Abstract: Herein, we have explored Half Heusler Alloy CoHfBi under the density functional theory is simulated using the Wein2k package. The structural characterization we had done in two different phases, i.e., spin polarised, and non-spin polarised which suggests that the CoHfBi alloy stable in spin polarised phase in Y2 type structure. Ab-Initio calculations are helpful to examine the dependence of the global properties of Heusler alloys on atomic composition and crystal …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 2, 2024 · pp. 20–25 Read article
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Study on Improvement of Air Quality in Underground Car Parking Area Using Jet Fan
Abstract: In recent years, jet fans have become a popular alternative to traditional ducted systems for ventilating pollutants in large parking areas like underground car parks and tunnels. Proper forced draft ventilation is necessary to remove harmful pollutants, such as vehicle exhaust fumes and smoke in the event of a fire. It is crucial to have a quantitative understanding of how exhaust gases, containing various toxic particles, propagate in these areas.So …
Published in Trends in Transport Engineering and Applications · Vol. 10, Issue 2, 2023 · pp. 29–44 Read article
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Effect of Process Parameters of Pulsed Current Micro Plasma Arc Welding on Weld Pool Geometry of AISI 304L Stainless Steel Sheets
Abstract: AISI 304L stainless steel is an austenitic Chromium-Nickel stainless steel offering an optimum combination of corrosion resistance, strength, and ductility. These attributes make it a favorite for many mechanical components. The low carbon content reduces susceptibility to carbide precipitation during welding. The effects of pulsing current parameters on weld pool geometry namely front width, back width, front height, and back height of pulsed current micro plasma arc-welded AISI 304L stainless …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 105–116 Read article
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Comparative Analysis of Tensile Properties of Virgin and Rice Husk-Reinforced PLA and ABS Filaments
Abstract: This study focuses on evaluating the tensile behavior of polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS) filaments reinforced with rice husk ash (RHA) particles, in comparison with their respective virgin counterparts. The incorporation of RHA, an abundant agricultural waste by-product, was considered with the objective of developing eco-friendly composites suitable for additive manufacturing applications. Tensile testing was carried out to assess the influence of the reinforcement on the mechanical …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 224–229 Read article
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Novel Thermal Management of BIPV System-Liquid Earth-Based Cooling
Abstract: The application of solar PV has tremendously increased in recent years owing to the improved efficiency and economic feasibility. Among the several applications of PV panels Building integrated photovoltaics has become a hot topic in research. However improper thermal management of solar panels is the main cause of a decline in efficiency and longevity. In this regard, water-based coolingsystems, integrating cooling ducts, using optical filters, phase change materials, and air-passed …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 10, Issue 2, 2023 · pp. 1–18 Read article
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Analyzing the Sheet Metal Extrusion Process Using Finite Element Analysis
Abstract: A wide range of sheet metal forming techniques has been developed to make it easier to produce intricate 3D objects. However, the knowledge still isn't sufficient. The sheet metal extrusion method was examined in this research as one of the common sheet-bulk metal manufacturing technologies. Consideration of the flow-stress curve's impact across a broad range of plastic strain and ductile damage played a pivotal role in constructing a realistic finite …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 1, Issue 1, 2023 · pp. 13–25 Read article
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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
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Utilization of Waste Polyethylene Terephthalate with Bitumen for Road Construction
Abstract: Polyethylene terephthalate (PET) is commonly used for soft drink water bottles and other applications. However, disposal of this waste PET in large quantities causes environmental problem, as it is considered non-biodegradable material. This study investigated utilization of waste PET mixed with 60/70 penetration grade of bitumen to be as a raw material for road construction. The effect of temperature (140, 150, 160°C), composition of PET (4, 8, 12%) and mixing …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 8, Issue 2, 2017 · pp. 30–39 Read article
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Study on Partial Replacement of Cement with Pinus Fiber and Nano Silica in M30 Concrete Paver Blocks: A Fiber-Reinforced Polymer-Cement Composite Approach
Abstract: This study investigates the partial replacement of cement in M30 grade concrete paver blocks using nano silica and Pinus fiber, with a primary focus on mechanical performance, sustainability, and long-term durability and promoting sustainability. Portland cement, a major contributor to global CO₂ emissions, can be partially substituted using supplementary materials to create eco-efficient construction solutions. Nano silica, due to its high pozzolanic reactivity and ultrafine size, improves the microstructure and …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 63–76 Read article
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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
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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
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Numerical Study on Heat Transfer Enhancement of Laminar Flow through a Circular Tube with Artificial Rib Roughness
Abstract: This work presents the configuration optimization of a typical square roughness in a circular tube for laminar heat transfer in air using computational fluid dynamics (CFD) modelling. Conjugate heat transfer 2D numerical model has been developed and successfully carried out. CFD numerical simulations were carried out to analyze the flow and heat transfer in the air duct of a solar air heater provided with rectangular ribs. The laminar flow model …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 3, 2014 · pp. 14–19 Read article
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Optimization of EDM Process Parameters with Aluminium-Fly Ash Composite using Taguchi method
Abstract: Aluminium based fly ash composites have gained huge popularity over the aluminum and its alloy. These aluminium based composites are being widely used in various applications such as automotive parts, machine cover, frames and ducts etc. Fly ash addition not only makes aluminium harder, stronger, stiffer and more wear resistant but also saves energy consumption and helps in cutting down green house emissions by utilizing almost freely available fly ash …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 1–6 Read article
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Performance Evaluation of High-Performance Fiber Reinforced Concrete Incorporating Fly Ash, Coir Husk Ash, and Hybrid Fibers
Abstract: High-Performance Fiber-Reinforced Concrete (HPFRC) is an advanced composite material designed to improve the mechanical properties and durability of conventional concrete. This study investigates the effects of fly ash (FA), coir pith ash (CPA), and various fiber reinforcements (polypropylene, coir, and kenaf) on the compressive strength of HPFRC. The research evaluates the influence of natural admixtures, single fiber additions, and hybrid fiber combinations to optimize mix proportions for enhanced structural performance. …
Published in Journal of Structural Engineering and Management · Vol. 12, Issue 2, 2025 · pp. 10–15 Read article
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Experimental Investigation on the Seismic Disaster Mitigation of Unreinforced Brick Masonry Buildings
Abstract: The Himalayan region is considered to have the potential to produce earthquakes of magnitude 8.0 or greater once every 100 years. Since the occurrence of an earthquake cannot be prevented; therefore, seismic disaster mitigation remains the only option for the civil society. Unreinforced masonry (URM) buildings, constructed with stone or brick, are very common in Northern Pakistan part of Himalayan belt. The seismic performance of stone masonry was found very …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 55–67 Read article
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Carbon-Al Synergy: Investigation of Fiber Stacking and Orientation on the Mechanical Properties of Al-CFRP Metal Matrix Composites
Abstract: The current study examines the mechanical behaviour of Aluminum-Carbon Fiber Reinforced Polymer (Al-CFRP) composites fabricated using compression moulding technique, a novel approach combining lightweight aluminium’s ductility with CFRP’s high strength-to-weight ratio. The polymer composites were fabricated by stacking aluminum alloy sheet of 0.5mm thickness and pre-impregnated by 12 layers of carbon fiber cloth of 200 gsm, with epoxy resin between layers, followed by consolidation under controlled temperature and pressure in …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 340–354 Read article
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Enhanced Durability and Performance of Reinforced Concrete Beams through CFRP Wrapping: An Experimental Investigation
Abstract: Globally, maintaining and repairing aging reinforced concrete structures poses a significant challenge for the construction industry. Numerous structures built before modern earthquake-resistant design codes lack adequate seismic resilience. Additionally, evolving service requirements often necessitate strengthening existing structures to handle increased loads. While past research explored the effectiveness of various Fiber Reinforced Polymer (FRP) wrappings under specific conditions, limited studies have comprehensively compared the performance of Carbon Fiber Reinforced Polymer (CFRP) …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 37–49 Read article
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Influence of Die Design Parameters and Mechanical Properties of AA5083 Through Equal Channel Angular Pressing Technique
Abstract: Refinement of the grain structure in bulk Materials is achieved using the Equal Channel Angular Pressing process. The material is pass through a die in this procedure that has two channels that meet at a particular angle. Finer grains are formed as a result of the material's deformation when it passes through die. The creation of ultra-fine grains is influenced by a number of die design characteristics. The effects of …
Published in International Journal of Manufacturing and Production Engineering · Vol. 2, Issue 2, 2024 · pp. 33–47 Read article
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Basalt Fiber, Palm Fiber, and Seashell Powder Reinforced Hybrid Epoxy Composites: A Mechanical Characterization
Abstract: This study investigates epoxy-based composites reinforced with basalt fiber, palm fiber, and seashell powder fabricated via hand lay-up. Mechanical characterization included tensile, flexural, hardness, and impact testing, supported by ANOVA and TOPSIS analyses. The Basalt-Epoxy composite has the highest mechanical strength among the systems under investigation, with a tensile strength of 275 N/mm² and a yield stress of around 215 N/mm². Compared to Palm-Epoxy composite, which has the lowest mechanical …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1565–1575 Read article