Search
64 articles for “duct design”
-
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
-
Strength and Durability of Concrete Cubes and Cylinders Wrapped with FRP
Abstract: Experimental were conduct on the distressed reinforced cement concrete compressive element and on the same after they have been retrofitted for rehabitation. Presently, FRP materials are also been started use in construction field in the form of wrapping to enhance the load carrying capacity, shear and flexural strength as well as ductility. This is an experiment based project which deals with strengthening and load deformation relationship of reinforced cement concrete. …
Published in Journal of Construction Engineering, Technology & Management · Vol. 10, Issue 3, 2020 · pp. 7–13 Read article
-
Effect of TMT Bar Lugging on Steel Reinforcement Failure Mode under Monotonic Loading
Abstract: Thermo-mechanically treated (TMT) ribbed bars modify the overall progress of failure in reinforced concrete. The ribs maintain anchorage after friction on the rest of the bar is eliminated during deformation, taking up the ultimate compressive load. This however, is inadvertently jeopardized by the stress concentration effect of the rib geometry. This paper analyses the extent to which some of the geometric forms of bar lugging affect the prevalence of ductile …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 8–14 Read article
-
Design of Ventilation and Air Conditioning for 50 Ton Bollard Pull Utility Tug Built for Indian Navy
Abstract: Abstract The current work deals with the design of ventilation and air conditioning for utility tug which is built for the Indian navy by HSL considering previously built values of the tug, which was approved. The main purpose of this project is to reckon the heat load calculations for air-conditioning and ventilation heat load calculations of the utility tug. The calculations were performed on the basis of some professional organizations …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 1, 2016 · pp. 23–31 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
-
Simulation and Analysis to Reduce the Shrinkage Defect in Sand Casting for the Rotor: A Review
Abstract: Casting is a process in which the metal is melted and poured into mold and allows it to solidify to get desired shape. Objective of investigation is to review on simulation and analysis to reduce the shrinkage defect in sand casting. In ductile iron casting, shrinkage defect is common. It is generally seen at the last solidifying area of casting. Other parameters like getting system, feeder, metallurgy of material, part …
Published in Journal of Production Research & Management · Vol. 7, Issue 3, 2017 · pp. 23–26 Read article
-
Optimizing Vehicle Structures Using Functionally Graded Materials of Aluminum and Carbon Fiber Reinforced Polymer Composites
Abstract: This article investigates the optimization of vehicle structures through application of functionally graded materials (FGMs), specifically aluminium and carbon fibre reinforced polymer (CFRP) composites. Such materials, known as FGMs, are characterized by spatial variations in composition and structure designed to improve so-called performance attributes. For the purposes of this research, the material properties of aluminium and CFRP composites are taken to be randomly distributed in thickness direction of a FGM …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 478–489 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
-
Design of Commodity Elevator
Abstract: This project is related to distribution of commodities to resident customers on door to door basis and to provide a device which enables the vendors to deliver the commodities milk bags, newspapers and the like without going from floor to floor and door to door of a building for the delivery of the same. We designed an elevator system by which residents can now pick up Milk Bags and Newspapers …
Published in Trends in Machine design · Vol. 2, Issue 2, 2015 · pp. 16–21 Read article
-
Prediction of Process Parameters of Friction Stir Welding Using Artificial Neural Network
Abstract: In this paper an artificial neural network (ANN) approach is used to predict the process parameters of friction stir welding (FSW). Initially, the experiments are conducted using the design of experiment (DoE) approach on FSW using L27 orthogonal array. The experiments are conducted using speed, feed, and tool tilt angle as input parameters for DoE and tensile strength, hardness, and ductility as output. ANN is created having 25 neurons and …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 13–25 Read article
-
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
-
A Comparative Evaluation of a 13-story G+ Building with a Soft Storey, Using Pushover Analysis, with a Focus on the Impact of Different Placement of Shear Walls
Abstract: Asymmetrical structures with varying degrees of irregularity have proven to be a significant factor in causing collapses, damage to property, and injury during earthquakes. Despite extensive research on asymmetric buildings, there are currently no established guidelines for multi-story structures of this type. A soft storey, also known as a weak storey, is a level in a structure with insufficient rigidity or ductility to sustain earthquake-induced damage Pushover analysis has been …
Published in Recent Trends in Civil Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 1–9 Read article
-
Microstructural Design and Functional Properties of Polycrystalline Materials
Abstract: Polycrystalline materials, composed of an aggregate of crystallites or grains, are foundational to modern engineering applications due to their versatile functional properties. The microstructural design—encompassing grain size, shape, orientation, phase distribution, and grain boundary characteristics—plays a pivotal role in determining mechanical, thermal, electrical, and magnetic behavior. This abstract explores the intricate relationship between microstructure and functionality, emphasizing how tailored processing techniques such as thermomechanical treatments, sintering, and additive manufacturing can …
Published in International Journal of Crystalline Materials · Vol. 2, Issue 2, 2025 · pp. 16–20 Read article
-
HYBRID TEG SYSTEM FOR INDUSTRIAL AND AIR CONDITIONING APPLICATIONS
Abstract: A new system to generate electric energy using thermoelectric generators (TEG’s) based on Peltier cells has been conceived, designed and built. The system consists of a Peltier cell assembly installed in a replica of an air conditioning circuit to benefit from hot and cold air flow to generate the appropriate temperature gradient. The new system has been characterized using a group of Peltier cells mounted on a dual thermostatic chamber …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 9, Issue 1, 2022 · pp. 1–17 Read article
-
Vulnerability Reduction through Appropriate Building Designs in Kashmir
Abstract: AbstractInfrastructure development and construction of accommodation (residential and nonresidential) with masonry is the oldest and most common technique used throughout the world. Same is followed in the South East Asian countries including Pakistan. Unreinforced masonry (without use of steel for tensile loadings) can withstand gravity loads well because it has good compressive strength but very low or negligible tensile strength. The tensile strength of a joint made with mortar can …
Published in Research & Reviews : Journal of Ecology · Vol. 6, Issue 1, 2017 · pp. 12–16 Read article
-
Analysis of Seismic Response of 3-D Steel Frame
Abstract: It is of critical importance that the structures that need seismic retrofitting are correctly identified, and an optimal retrofitting is conducted in a cost-effective fashion. Among the retrofitting techniques available, steel braces can be considered as one of the most efficient solution for seismic performance upgrading of RC frame structures. This paper investigates the seismic behavior of 3D-steel frame with different type of bracings for seismic loading condition corresponding to …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 2, 2015 · pp. 6–14 Read article
-
Effect of Silica Fume on Compressive Strength of Concrete and its Impact on Structure
Abstract: Silica fume is the byproduct which is obtained in ferrosilicon and silicon industry. With the increase in environmental hazardous effect, exploitation of industrial outgrowth and exhaustion of natural resources, the demand of using the byproducts has become a captivating choice to disposal. Silica fume is very active pozzolan, it is used in concrete because of its extreme fine, high SiO2 content and very effective in development and design of high-performance …
Published in Recent Trends in Civil Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 20–29 Read article
-
Buckling Strength of Metallic and Composite Plates with Small and Large Hole at Different Locations
Abstract: Most of the aircraft structures will experience a buckling phenomenon due to compressive loads. The cutouts like system small and large holes, lighting holes etc. are introduced in the aircraft structure at different locations for accessing aircraft inside and for passing electrical wires and ducts. The stress rises around these holes due to removing area in the panel and buckling phenomena will become further critical in aircraft structures. The cutouts …
Published in Journal of Aerospace Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 18–37 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
-
Crystal Engineering Strategies for Tailoring Mechanical Properties of Structural Materials
Abstract: Crystal engineering has emerged as a promising approach for designing materials with tailored mechanical properties, enabling advancements in various fields such as aerospace, automotive, and construction. This review examines the diverse strategies employed in crystal engineering to manipulate the mechanical behavior of structural materials. One key strategy involves controlling the crystal structure at the atomic level through techniques such as alloying, doping, and phase transformations. Alloying introduces foreign atoms into …
Published in International Journal of Crystalline Materials · Vol. 1, Issue 1, 2024 · pp. 01–06 Read article