This document summarizes a study that used computational fluid dynamics (CFD) to analyze the thermal load on an exhaust valve when using conventional fuels and mixed fuels in an internal combustion engine. The study used finite element analysis to model the temperature distribution and thermal stresses on an exhaust valve. CFD analysis was performed to determine the pressure drop, heat transfer coefficient, mass flow rate, and heat transfer rate for mixtures of methane and ethane at different volume fractions. The properties of the nanofluids created with different volume fractions of nanoparticles were calculated to be used as inputs for the thermal analysis of the exhaust valve.
Structural Design and FEM Analysis of Bleeder in Steam Turbine CasingIRJET Journal
1) The document discusses the design and finite element analysis of a bleeder in a steam turbine casing. It provides calculations to determine the diameter of the bleeder pipe based on flow parameters.
2) A CAD model of the casing with integrated bleeder is generated and meshed. Boundary conditions representing pressure and displacement are applied for static structural analysis.
3) Von Mises stress, total deformation, and principal stresses are analyzed. Results show stresses and deformations within acceptable limits. Analysis of the full casing is also performed under pressure boundary conditions.
The document provides details about a final project report on an automatic spray painter using a 2-DOF robotic arm. It includes the names and enrollment numbers of the 4 students on the project team. It discusses the external and internal project supervisors. It also includes acknowledgments thanking various people who provided guidance and support. The document is divided into multiple chapters that discuss processes automation, analysis and simulation, implementation proposals, the mechanical structure, and conclusions from the project.
The crank shaft is machined on this horizontal lathe CNC Taache machine. It has a swing diameter of 1200mm and can machine workpieces up to 8mm. Turning, facing, boring, threading and grinding operations can be performed on this machine.
IRJET - Thermostat Valve Thermal Comfort Analysis using F.E.AIRJET Journal
This document summarizes research on analyzing the thermal performance of thermostat valves using finite element analysis. Thermostat valves play an important role in automobile cooling systems by regulating engine temperature. The study models and simulates the thermal changes in thermostat valves made of two different materials, copper and brass. The results show that using brass instead of copper improves valve performance by opening at a lower temperature, increases valve life, and reduces costs.
IRJET- Modeling & Analysis of a 100CC I.C. Engine Connecting RODIRJET Journal
1) The document describes modeling and static structural analysis of a 100cc internal combustion engine connecting rod using SOLIDWORKS and ANSYS.
2) Various materials were analyzed including aluminum alloys, steel, and a metal matrix composite. The connecting rod was subjected to a 400N force.
3) Analysis found the metal matrix composite had the least deformation but higher cost, while an aluminum alloy provided good results at lower cost for connecting rods.
IRJET- Design and Analysis of Anchor Block and Penstock Pipe of a Hydroelectr...IRJET Journal
The document discusses the design and analysis of an anchor block and penstock pipe for the Thottiyar hydroelectric project in Kerala, India. It provides details on the design methodology, which involves collecting preliminary site data, studying the relevant design codes, and using software like Microsoft Excel to iteratively design the anchor block and size the penstock pipe to withstand expected water pressures and hammer effects. The sample anchor block design is presented along with conclusions on satisfying stability criteria and determining appropriate penstock pipe thicknesses.
The document describes the design and modeling of a bucket elevator system used to lift bulk materials like wheat, outlining the various components of a bucket elevator including the drive head, bottom head, inlet, outlet, buckets, casing, drive unit, and take-up unit, and provides details on the fabrication and testing of a prototype bucket elevator model.
IRJET - Analysis of Forced Convection Heat Transfer to Improve the Thermal Pe...IRJET Journal
This document summarizes research on improving heat transfer through forced convection using pipe inserts. It discusses heat transfer enhancement techniques used to increase turbulence and convection, including triangular fin inserts. The document reviews related studies on topics like twisted tape inserts, rib turbulators, mesh inserts, and more. It also outlines the experimental setup used, including a copper pipe test section with dimensions and thermocouple placement. The goal is to optimize heat transfer through forced convection while minimizing pressure drop.
Structural Design and FEM Analysis of Bleeder in Steam Turbine CasingIRJET Journal
1) The document discusses the design and finite element analysis of a bleeder in a steam turbine casing. It provides calculations to determine the diameter of the bleeder pipe based on flow parameters.
2) A CAD model of the casing with integrated bleeder is generated and meshed. Boundary conditions representing pressure and displacement are applied for static structural analysis.
3) Von Mises stress, total deformation, and principal stresses are analyzed. Results show stresses and deformations within acceptable limits. Analysis of the full casing is also performed under pressure boundary conditions.
The document provides details about a final project report on an automatic spray painter using a 2-DOF robotic arm. It includes the names and enrollment numbers of the 4 students on the project team. It discusses the external and internal project supervisors. It also includes acknowledgments thanking various people who provided guidance and support. The document is divided into multiple chapters that discuss processes automation, analysis and simulation, implementation proposals, the mechanical structure, and conclusions from the project.
The crank shaft is machined on this horizontal lathe CNC Taache machine. It has a swing diameter of 1200mm and can machine workpieces up to 8mm. Turning, facing, boring, threading and grinding operations can be performed on this machine.
IRJET - Thermostat Valve Thermal Comfort Analysis using F.E.AIRJET Journal
This document summarizes research on analyzing the thermal performance of thermostat valves using finite element analysis. Thermostat valves play an important role in automobile cooling systems by regulating engine temperature. The study models and simulates the thermal changes in thermostat valves made of two different materials, copper and brass. The results show that using brass instead of copper improves valve performance by opening at a lower temperature, increases valve life, and reduces costs.
IRJET- Modeling & Analysis of a 100CC I.C. Engine Connecting RODIRJET Journal
1) The document describes modeling and static structural analysis of a 100cc internal combustion engine connecting rod using SOLIDWORKS and ANSYS.
2) Various materials were analyzed including aluminum alloys, steel, and a metal matrix composite. The connecting rod was subjected to a 400N force.
3) Analysis found the metal matrix composite had the least deformation but higher cost, while an aluminum alloy provided good results at lower cost for connecting rods.
IRJET- Design and Analysis of Anchor Block and Penstock Pipe of a Hydroelectr...IRJET Journal
The document discusses the design and analysis of an anchor block and penstock pipe for the Thottiyar hydroelectric project in Kerala, India. It provides details on the design methodology, which involves collecting preliminary site data, studying the relevant design codes, and using software like Microsoft Excel to iteratively design the anchor block and size the penstock pipe to withstand expected water pressures and hammer effects. The sample anchor block design is presented along with conclusions on satisfying stability criteria and determining appropriate penstock pipe thicknesses.
The document describes the design and modeling of a bucket elevator system used to lift bulk materials like wheat, outlining the various components of a bucket elevator including the drive head, bottom head, inlet, outlet, buckets, casing, drive unit, and take-up unit, and provides details on the fabrication and testing of a prototype bucket elevator model.
IRJET - Analysis of Forced Convection Heat Transfer to Improve the Thermal Pe...IRJET Journal
This document summarizes research on improving heat transfer through forced convection using pipe inserts. It discusses heat transfer enhancement techniques used to increase turbulence and convection, including triangular fin inserts. The document reviews related studies on topics like twisted tape inserts, rib turbulators, mesh inserts, and more. It also outlines the experimental setup used, including a copper pipe test section with dimensions and thermocouple placement. The goal is to optimize heat transfer through forced convection while minimizing pressure drop.
IRJET- Design and Analysis of Catalytic Converter of Automobile EngineIRJET Journal
This document summarizes a study on the design and analysis of a catalytic converter for an automobile engine. The researchers designed a baseline catalytic converter model using CAD software and analyzed it using computational fluid dynamics (CFD) to study the pressure and velocity distribution. They found high pressure losses and non-uniform flow distribution. Various modifications to the honeycomb structure diameter, thickness, and position as well as the inlet and outlet design were tested. The optimal design was found to have a centered inlet, conical inlets/outlets, and a honeycomb structure with 30mm holes positioned at the casing mid-length. This design showed improved uniform flow distribution and reduced pressure losses compared to the baseline design.
Development of Semi-Autonomous Sheet Bending MachineIRJET Journal
The document describes the development of a semi-autonomous sheet bending machine. The machine uses pneumatic actuators powered by an air compressor to bend sheet metal with minimal human interference. Finite element analysis was conducted to ensure the design of the actuators and frame could withstand bending forces. The semi-automatic design makes the machine more affordable than fully automatic options, making it suitable for smaller industries.
EXPERIMENTAL INVESTIGATION AND PERFORMANCE AND EMISSION ANALYSIS OF DIESEL EN...IRJET Journal
This document describes an experimental investigation of the performance and emissions of a diesel engine with a modified inlet manifold using Mahua and Karanja biodiesel blends. The project had two phases: 1) modifying the inlet manifold with a swirl enhancer to generate swirling air for more efficient combustion; and 2) blending 20% biodiesel with 80% diesel (B20 blend) and testing it in the engine. Test results showed that the modified inlet manifold improved brake thermal efficiency, indicated thermal efficiency, and reduced certain emissions at lower loads compared to the normal diesel engine. However, at higher loads emissions increased due to a richer air-fuel mixture from the manifold disruption. Overall the biodiesel blends enhanced performance and
Semi-Automatic Engine Valve Cleaning Machine Using Cam and Follower MechanismIRJET Journal
This document describes the design and development of a semi-automatic engine valve cleaning machine that uses a cam and follower mechanism. The machine aims to make the valve lapping process, which is currently time-consuming and labor-intensive, more efficient. The machine was modeled in CAD software and analyzed for stress and deformation using FEA. Testing showed the machine reduces the time taken for valve cleaning compared to manual methods. The automated design requires less human intervention and effort during maintenance of internal combustion engine valves.
Design and Development of Pipe Traversing RobotIRJET Journal
This document describes the design and development of a pipe traversing robot. The robot is intended to inspect pipes for defects by traveling inside pipes and carrying various sensors. It uses multiple locomotion methods, including wheels and articulating arms, to navigate pipes of varying diameters. The robot is powered by a 12V battery and controlled using an Arduino microcontroller. Key components include DC motors, wheels, extending arms, and distance and camera sensors. Calculations were performed to select appropriate motor torques capable of powering the robot's movement inside pipes. The robot was modeled in CAD software and is designed to autonomously inspect pipes for issues like cracks and corrosion.
EXPERIMENTAL INVESTIGATION PERFORMANCE AND EMISSION ANALYSIS OF SINGLE CYLIND...IRJET Journal
1) The document describes an experimental investigation of the performance and emissions of a single cylinder diesel engine with a modified cylinder head.
2) Computational fluid dynamics (CFD) was used to model and simulate air flow in the modified combustion chamber. The modification aims to generate air swirl to improve combustion.
3) Experiments were conducted to test the performance and emissions of the engine with the modified head, and results were compared to the conventional head. Preliminary results showed reduced emissions but no change in performance.
Design of Starting Resistance for AC and DC Machines using Computer Analysis ...IRJET Journal
This document discusses the design of starting resistances for AC and DC motors using computer analysis in C language. It presents methods for designing starters for 3 types of motors: DC series motors, DC shunt motors, and slip-ring induction motors (AC). For each motor type, the relevant circuit diagrams and equations for determining the number of resistance sections and their values are provided. The analysis allows users to input motor parameters and automatically obtain starter resistance values. Benefits include precise resistance values, gradual speed increase, and reduced analysis time. Future work may expand the program's capabilities and improve the user interface.
Modelling & Thermal analysis of pulse jet engine using CFDIRJET Journal
This document summarizes a study that used computational fluid dynamics (CFD) to analyze the combustion characteristics of a pulse jet engine. The study modeled a pulse jet engine design using CAD software and then conducted a CFD analysis using two different combustion models: an eddy dissipation model and a finite rate chemistry model. The results showed that the eddy dissipation model generated higher thrust than the finite rate chemistry model. Specifically, the eddy dissipation model produced higher exit pressures and velocities. The study concluded the proper selection of combustion model is important for accurately evaluating performance metrics like thrust generated from a pulse jet engine.
IRJET- Design & Development of Hydraulically Dowel Pin Pressing MachineIRJET Journal
1. The document describes the design and development of a hydraulically operated dowel pin pressing machine.
2. It uses four hydraulic cylinders, with the master cylinder clamping a workpiece and two working cylinders pressing dowel pins into the workpiece from above and below.
3. Finite element analysis was performed on dowel pin components to analyze stress, deformation, and safety factors under load.
A journal on “Refurbishment of Internal combustion engine to an electric vehi...IRJET Journal
This document summarizes a journal article about refurbishing an internal combustion engine scooter into an electric vehicle. The researchers designed a new chassis to accommodate an electric motor and battery components. They used simulation software to analyze the chassis design and ensure it could withstand stresses. The team selected a brushless DC motor, lead-acid batteries, and motor controller. Dynamic calculations were performed to determine the required motor power, battery capacity, driving range, and charging time. Simulations validated that the converted electric scooter could reach speeds of 35 km/h and drive ranges of 35-45 km on a single charge. Some challenges included making structural changes to the chassis and improving the battery and motor specifications.
IRJET- Emission Effeciency of Diesel Oxidation Catalyst on a Nonroad Diesel E...IRJET Journal
This document summarizes research on the effect of a diesel oxidation catalyst (DOC) on emissions from a non-road diesel engine. A DOC was placed in the exhaust of a 75HP turbocharged diesel engine. Testing found that the DOC significantly reduced carbon monoxide emissions by 99.7% and hydrocarbon emissions by 90.4%. Particulate matter emissions were reduced by 14.3% with the DOC. The DOC effectively oxidized CO, unburned hydrocarbons, and particulate matter in the exhaust to lower harmful emissions.
IRJET- Design Development and Analysis of Low Pressure Bladeless TurbineIRJET Journal
This document discusses the design, development, and analysis of a bladeless turbine. It begins by providing background on Tesla turbines, which use boundary layer effects rather than blades. The proposed design aims to recover low pressure energy in process industries as an alternative to using throttle valves.
The design process is divided into system design and mechanical design. System design parameters like component arrangement and interaction with operators are considered. Mechanical design involves analyzing forces and selecting materials. Applications discussed include using compressed air/steam as a power source, waste pumps, and centrifugal blood pumps. The document concludes that the project helped apply engineering concepts to practical problems and learn teamwork skills.
This document discusses the finite element analysis and optimization of a screw compressor housing. The original design analysis found a maximum deformation of 0.17mm and principal stress of 104.3MPa, within design limits. Topology optimization suggested areas where material could be reduced up to 5% of the weight. The optimized design was created and analyzed, showing a weight reduction from 24.6kg to 23.8kg while stresses and deformations remained within design criteria.
Development of Semi Automatic Operated Pneumatic Based Wire Stripping Machineijtsrd
In recent years, the trend in the business has been toward more automation. A growing number of variables, including improving accuracy and reducing human error, are driving this trend. An in depth examination of the design and development of a pneumatically driven cable stripping machine for industrial mass production is provided in this dissertation, which includes an extensive bibliography. To cut the cable in large diameters in mass production, the industry now employs the traditional technique of employing a cable cutter, which takes longer and needs more manpower to cut the cable than other methods. The precision achieved by the traditional technique is low, and the procedure is time consuming. In addition to providing a solution to the traditional way of solving issues, automation reduces costs and saves time while also increasing accuracy and reducing human mistakes. By using automation, we want to achieve low cost stripping that is both quick and efficient, thereby reducing stripping time. The practical goal of an automated cable stripping machine is to remove the PVC from a cable at the necessary length and in the required number of pieces, according to the specifications. The stripping process in this system is accomplished via the use of pneumatic pressure and an Arduino. In our project, a solenoid valve is utilized to activate a pneumatic double acting cylinder, which is controlled by an Arduino. C. Sangeevi | K. S. Athiabiraman | B. Arunkumar "Development of Semi-Automatic Operated Pneumatic Based Wire Stripping Machine" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd45062.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/45062/development-of-semiautomatic-operated-pneumatic-based-wire-stripping-machine/c-sangeevi
IRJET- To Design and Study the Performance Analysis of Single Cylinder Di...IRJET Journal
This document describes a study on the design and performance analysis of a single cylinder diesel engine with variable compression ratio. The study was conducted by modifying a single cylinder diesel engine to allow the compression ratio to be varied between 12-18 by changing the clearance volume using a tilting cylinder head arrangement. Performance tests were conducted on the engine at different compression ratios and the results such as brake power, fuel consumption, efficiencies were compared. The results showed that operating the engine at a lower compression ratio of 15.55:1 using the variable compression ratio technology improved some of the performance parameters compared to a fixed compression ratio of 17.5:1. The document provides details of the methodology, design of the modification, assembly and performance analysis conducted
IRJET-Thermal Modeling and Analysis of High Pressure Steam Turbine Outlet NozzleIRJET Journal
This document discusses thermal modeling and analysis of steam turbine outlet nozzles. It begins by introducing steam turbines and their use in power generation. It then discusses different types of nozzles used in steam turbines, including convergent, divergent, and convergent-divergent nozzles. Solid particle erosion is identified as a key issue for nozzle performance. The document then describes modeling three nozzle shapes (Moore, Moses and Stein, and convergent-divergent) using CATIA software and analyzing them using computational fluid dynamics (CFD) in ANSYS Fluent to determine erosion rates, velocities, pressures, and temperatures. The CFD analysis found the convergent-divergent nozzle had the lowest erosion rate and highest
Development and Performance of Electro Hydraulic ExcavatorYogeshIJTSRD
The heavy earth moving machineries HEMM like hydraulic excavators play a major role in the construction and mining industries. In an industry of mining and construction, a hydraulic excavator plays a major role in action to perform a carry an heavy load. Employing the technology of automation, an alternative solution is made to replace the manual operation. By addressing the concept of automation in construction, the inevitable usage of embedded is accumulated to introduce in earthmovers. In a mass production or construction site, unplanned work would lead to time consuming and fault. To overcome the major disadvantage of time consuming, so implementation of automation is made on excavators. This could be made workers do other work sequentially with half monitoring the working process of excavator. This also favors the firm or industry to increase the work capability with an adequate number of laborers. K. S Mohan Raj | A Arun Negemiya | C Sangeevi "Development and Performance of Electro-Hydraulic Excavator" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd44966.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/44966/development-and-performance-of-electrohydraulic-excavator/k-s-mohan-raj
IRJET - Fabrication of Four Way Machining by using Scotch Yoke MechanismIRJET Journal
The document describes the design and fabrication of a machine that can perform four machining operations using a single motor. It uses a scotch yoke mechanism to perform shaping and hacksaw cutting operations and a bevel gear to enable drilling and grinding. The machine is designed to reduce inventory costs and improve productivity for industries by combining multiple machining tasks into a single compact frame operated by a single-phase 1HP motor. Key components include a flywheel, scotch yoke, bevel gears, and various cutting and grinding tools.
ADVANCED TOOL FOR FLUID DYNAMICS-CFD AND ITS APPLICATIONS IN AUTOMOTIVE, AERO...IAEME Publication
This document discusses the use of computational fluid dynamics (CFD) in automotive, aerodynamics, and machine industries. It provides two case studies as examples: (1) using CFD to study fluid flow and detect cavitation in a centrifugal pump to determine safe operating conditions, and (2) using CFD to analyze the effect of vehicle shape on drag coefficient for a car and jeep. The results show how CFD can be used to study flow distribution, pressure loss, and thermal distribution to improve design in these industries.
IRJET- Optimizing Cooling Efficiency through Conformal Cooling using Moldex3D...IRJET Journal
This document discusses optimizing cooling efficiency in injection molding through conformal cooling channel design using CAE simulation software. It begins with an introduction to injection molding and how cooling time significantly impacts manufacturing costs. The document then presents a case study where conformal cooling channels were designed for an automobile mudguard traditionally made via injection molding. Simulation analysis was conducted to compare conformal cooling results to traditional cooling, finding conformal cooling reduced cooling time from 38.6 to 26.8 seconds, improved cooling efficiency from 7.37% to 89.8%, and decreased warpage and part defects. The conformal cooling design was found to optimize part quality and cooling time through more uniform heat removal.
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
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In recent years, the trend in the business has been toward more automation. A growing number of variables, including improving accuracy and reducing human error, are driving this trend. An in depth examination of the design and development of a pneumatically driven cable stripping machine for industrial mass production is provided in this dissertation, which includes an extensive bibliography. To cut the cable in large diameters in mass production, the industry now employs the traditional technique of employing a cable cutter, which takes longer and needs more manpower to cut the cable than other methods. The precision achieved by the traditional technique is low, and the procedure is time consuming. In addition to providing a solution to the traditional way of solving issues, automation reduces costs and saves time while also increasing accuracy and reducing human mistakes. By using automation, we want to achieve low cost stripping that is both quick and efficient, thereby reducing stripping time. The practical goal of an automated cable stripping machine is to remove the PVC from a cable at the necessary length and in the required number of pieces, according to the specifications. The stripping process in this system is accomplished via the use of pneumatic pressure and an Arduino. In our project, a solenoid valve is utilized to activate a pneumatic double acting cylinder, which is controlled by an Arduino. C. Sangeevi | K. S. Athiabiraman | B. Arunkumar "Development of Semi-Automatic Operated Pneumatic Based Wire Stripping Machine" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd45062.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/45062/development-of-semiautomatic-operated-pneumatic-based-wire-stripping-machine/c-sangeevi
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This document discusses thermal modeling and analysis of steam turbine outlet nozzles. It begins by introducing steam turbines and their use in power generation. It then discusses different types of nozzles used in steam turbines, including convergent, divergent, and convergent-divergent nozzles. Solid particle erosion is identified as a key issue for nozzle performance. The document then describes modeling three nozzle shapes (Moore, Moses and Stein, and convergent-divergent) using CATIA software and analyzing them using computational fluid dynamics (CFD) in ANSYS Fluent to determine erosion rates, velocities, pressures, and temperatures. The CFD analysis found the convergent-divergent nozzle had the lowest erosion rate and highest
Development and Performance of Electro Hydraulic ExcavatorYogeshIJTSRD
The heavy earth moving machineries HEMM like hydraulic excavators play a major role in the construction and mining industries. In an industry of mining and construction, a hydraulic excavator plays a major role in action to perform a carry an heavy load. Employing the technology of automation, an alternative solution is made to replace the manual operation. By addressing the concept of automation in construction, the inevitable usage of embedded is accumulated to introduce in earthmovers. In a mass production or construction site, unplanned work would lead to time consuming and fault. To overcome the major disadvantage of time consuming, so implementation of automation is made on excavators. This could be made workers do other work sequentially with half monitoring the working process of excavator. This also favors the firm or industry to increase the work capability with an adequate number of laborers. K. S Mohan Raj | A Arun Negemiya | C Sangeevi "Development and Performance of Electro-Hydraulic Excavator" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd44966.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/44966/development-and-performance-of-electrohydraulic-excavator/k-s-mohan-raj
IRJET - Fabrication of Four Way Machining by using Scotch Yoke MechanismIRJET Journal
The document describes the design and fabrication of a machine that can perform four machining operations using a single motor. It uses a scotch yoke mechanism to perform shaping and hacksaw cutting operations and a bevel gear to enable drilling and grinding. The machine is designed to reduce inventory costs and improve productivity for industries by combining multiple machining tasks into a single compact frame operated by a single-phase 1HP motor. Key components include a flywheel, scotch yoke, bevel gears, and various cutting and grinding tools.
ADVANCED TOOL FOR FLUID DYNAMICS-CFD AND ITS APPLICATIONS IN AUTOMOTIVE, AERO...IAEME Publication
This document discusses the use of computational fluid dynamics (CFD) in automotive, aerodynamics, and machine industries. It provides two case studies as examples: (1) using CFD to study fluid flow and detect cavitation in a centrifugal pump to determine safe operating conditions, and (2) using CFD to analyze the effect of vehicle shape on drag coefficient for a car and jeep. The results show how CFD can be used to study flow distribution, pressure loss, and thermal distribution to improve design in these industries.
IRJET- Optimizing Cooling Efficiency through Conformal Cooling using Moldex3D...IRJET Journal
This document discusses optimizing cooling efficiency in injection molding through conformal cooling channel design using CAE simulation software. It begins with an introduction to injection molding and how cooling time significantly impacts manufacturing costs. The document then presents a case study where conformal cooling channels were designed for an automobile mudguard traditionally made via injection molding. Simulation analysis was conducted to compare conformal cooling results to traditional cooling, finding conformal cooling reduced cooling time from 38.6 to 26.8 seconds, improved cooling efficiency from 7.37% to 89.8%, and decreased warpage and part defects. The conformal cooling design was found to optimize part quality and cooling time through more uniform heat removal.
Similar to IRJET- Thermal Load Effect on Exhaust Valve by using Conventional and Mixed Fuels (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...shadow0702a
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
Rainfall intensity duration frequency curve statistical analysis and modeling...bijceesjournal
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.
artificial intelligence and data science contents.pptxGauravCar
What is artificial intelligence? Artificial intelligence is the ability of a computer or computer-controlled robot to perform tasks that are commonly associated with the intellectual processes characteristic of humans, such as the ability to reason.
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Artificial intelligence (AI) | Definitio
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.