This document describes a study to improve flow uniformity in an automotive radiator through computational fluid dynamics (CFD) analysis and design optimization. The researchers first modeled a single-pass radiator in CAD software and performed CFD analysis, finding non-uniform flow. They then redesigned the radiator as a three-pass system by lowering tube size. CFD analysis of the new design showed improved flow uniformity, lower pressure drops, and more uniform streamlines. Thermal analysis found the three-pass radiator achieved a lower coolant outlet temperature and higher heat rejection rate than the single-pass version. In summary, modifying a single-pass radiator to a three-pass design through reduced tube sizing was
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This document discusses performance evaluation of automobile radiators. It begins with an abstract that outlines the goal of studying and analyzing the thermal behavior of automobile radiators using the LMTD and ε-NTU methods. It then provides background on radiators and their role in removing waste heat from engines. The literature review summarizes previous studies on optimizing radiator design parameters like tube pitch and airflow velocity. The problem statement discusses the need to improve radiator performance as engines have become more powerful. The experimental scheme and design parameters sections outline the planned study to evaluate radiator prototypes using different parameters. In conclusions, the work aims to enhance radiator performance by altering convective heat transfer coefficients and provide easier radiator design using case
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The heat transfer system is of great importance in many commercial and domestic applications. Likewise, IC engine always maintained at the working temperature for good ex. The improper generation distribution of temperature affects the performance and reduces the efficiency of the engine hence to the vehicle automobile. The performance of automobile Radiators can be substantially improved by a number of augmentation techniques. Heat transfer can be increased by active and passive flow control techniques or either with the incorporation of Nanofluids. As in order to remove the excess temperature, we need some cooling system in the automobile. The cooling system can be of two types Air and Water cooling system. Air cooling system is generally used in two wheelers and airplanes. The air directly takes the heat from the surface of the engine through the fins available on them. In the water cooling system, a water jacket is provided around the engine which carries the heat of the engine and releases this heat to the atmosphere with the help of a component called a radiator. The radiator basically consists of the upper tank, lower tank, tubes, fins, thermostat, the inlet port and outlet port, pressure cap. In the present work, Simulation Based Interpretation and Performance Analysis on Automobile Radiator through NanoParticle Fluids on modeled setup will be done trying to incorporate the condition of the automobile by using Nanoparticle fluids of Al2O3 and CuO. Water will also be taken to compare the performance of the Nanofluids. Results of numerous experimental and Ansys CFD solvers will be illustrated. Krishna Dutta Pandey | Shailendra Tiwari | Kundan Gupta "Simulation Based Interpretation and Recent Trends on Performance Analysis on Automobile Radiator through Nano Particle Fluids" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, URL: https://www.ijtsrd.com/papers/ijtsrd38592.pdf Paper Url: https://www.ijtsrd.com/engineering/mechanical-engineering/38592/simulation-based-interpretation-and-recent-trends-on-performance-analysis-on-automobile-radiator-through-nano-particle-fluids/krishna-dutta-pandey
Study and Design of Engine Cooling System with Distilled Water as a Coolant f...IRJET Journal
This document summarizes a study on designing an engine cooling system with distilled water as coolant for a Formula Student race car. It discusses the components and working of automotive radiators, objectives of the cooling system design, material selection considerations, and key design parameters. The study determines the mass flow rate of air through the radiator will be 2.807 kg/sec and the radiator effectiveness is 0.40 based on given specifications of the Formula Student engine and car. References on automotive radiator performance and analysis are also provided.
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This document discusses the validation of design parameters for automobile radiators using computational tools. It presents two case studies where the thermal performance of radiators is analyzed using the log mean temperature difference (LMTD) and number of transfer units (NTU) methods and the results are compared to those from a computational software tool (HXCombine). The results show good agreement between the manual calculations and software outputs, validating the use of computational tools for radiator design. Parameters like heat transfer rate, outlet temperatures, effectiveness and heat transfer area are compared for both case studies. This research demonstrates that computational tools can accurately analyze and design radiator performance.
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This document presents a computational analysis comparing the performance of a shell and tube heat exchanger using different working fluids and a helical insert. It analyzes heat transfer rate, overall heat transfer coefficient, and effectiveness using water, SiO2 nanofluid at 0.4% volume fraction, and a helically twisted insert. The nanofluid and insert improve performance by increasing turbulence and the heat transfer coefficient compared to water alone. Calculations of nanofluid properties, heat exchanger parameters, and a performance evaluation criterion are presented. CFD analysis in SolidWorks is used to simulate and validate the virtual heat exchanger model against experimental results.
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The document describes a parametric study conducted on a radiator test rig. The test rig was designed to test the performance of radiators under various air and hot water flow rate conditions. It consists of an automobile radiator, cooling fan, water pump, reservoirs, and temperature sensors. Experiments were conducted by heating the water in the reservoir and passing it through the radiator while varying the water and air flow rates. Inlet and outlet temperatures were measured and used to evaluate the heat transfer performance of the radiator. The rig allows for easy measurement of temperatures and compact, low-cost testing of radiators.
IRJET- Performance Analysis of Automobile RadiatorIRJET Journal
This document analyzes the performance of an automobile radiator at different air velocities. It begins with background on radiator design and operation. Assumptions are made to simplify the heat transfer analysis. Calculations are shown to determine the Nusselt number, heat transfer coefficient, fin efficiency, and overall heat transfer coefficient at varying air velocities and Reynolds numbers. Graphs illustrate trends such as Nusselt number and heat transfer coefficient increasing with Reynolds number. The analysis concludes that the radiator dimensions are suitable and cooling remains effective even at higher vehicle speeds, though fin efficiency decreases slightly with increasing Reynolds number.
Experimental Investigation on Heat Transfer of Cylindrical Oblique Fin Micro-...IRJET Journal
This document describes an experimental investigation into the heat transfer performance of cylindrical oblique fin micro-channel heat exchangers for automotive engine cooling systems. The study compares a straight fin micro-channel heat exchanger to one with 12 degree oblique fins. Experiments were conducted on a test rig to determine the heat transfer coefficient, effectiveness, and pressure drop of the two designs under various air and water flow rates. The results showed that the oblique fin micro-channel heat exchanger achieved higher heat transfer efficiency and a smaller size than the straight fin design, demonstrating its potential to improve engine cooling system performance and reduce radiator size in automobiles.
IRJET- Performance Evaluation of Automobile RadiatorIRJET Journal
This document discusses performance evaluation of automobile radiators. It begins with an abstract that outlines the goal of studying and analyzing the thermal behavior of automobile radiators using the LMTD and ε-NTU methods. It then provides background on radiators and their role in removing waste heat from engines. The literature review summarizes previous studies on optimizing radiator design parameters like tube pitch and airflow velocity. The problem statement discusses the need to improve radiator performance as engines have become more powerful. The experimental scheme and design parameters sections outline the planned study to evaluate radiator prototypes using different parameters. In conclusions, the work aims to enhance radiator performance by altering convective heat transfer coefficients and provide easier radiator design using case
Simulation Based Interpretation and Recent Trends on Performance Analysis on ...ijtsrd
The heat transfer system is of great importance in many commercial and domestic applications. Likewise, IC engine always maintained at the working temperature for good ex. The improper generation distribution of temperature affects the performance and reduces the efficiency of the engine hence to the vehicle automobile. The performance of automobile Radiators can be substantially improved by a number of augmentation techniques. Heat transfer can be increased by active and passive flow control techniques or either with the incorporation of Nanofluids. As in order to remove the excess temperature, we need some cooling system in the automobile. The cooling system can be of two types Air and Water cooling system. Air cooling system is generally used in two wheelers and airplanes. The air directly takes the heat from the surface of the engine through the fins available on them. In the water cooling system, a water jacket is provided around the engine which carries the heat of the engine and releases this heat to the atmosphere with the help of a component called a radiator. The radiator basically consists of the upper tank, lower tank, tubes, fins, thermostat, the inlet port and outlet port, pressure cap. In the present work, Simulation Based Interpretation and Performance Analysis on Automobile Radiator through NanoParticle Fluids on modeled setup will be done trying to incorporate the condition of the automobile by using Nanoparticle fluids of Al2O3 and CuO. Water will also be taken to compare the performance of the Nanofluids. Results of numerous experimental and Ansys CFD solvers will be illustrated. Krishna Dutta Pandey | Shailendra Tiwari | Kundan Gupta "Simulation Based Interpretation and Recent Trends on Performance Analysis on Automobile Radiator through Nano Particle Fluids" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, URL: https://www.ijtsrd.com/papers/ijtsrd38592.pdf Paper Url: https://www.ijtsrd.com/engineering/mechanical-engineering/38592/simulation-based-interpretation-and-recent-trends-on-performance-analysis-on-automobile-radiator-through-nano-particle-fluids/krishna-dutta-pandey
Study and Design of Engine Cooling System with Distilled Water as a Coolant f...IRJET Journal
This document summarizes a study on designing an engine cooling system with distilled water as coolant for a Formula Student race car. It discusses the components and working of automotive radiators, objectives of the cooling system design, material selection considerations, and key design parameters. The study determines the mass flow rate of air through the radiator will be 2.807 kg/sec and the radiator effectiveness is 0.40 based on given specifications of the Formula Student engine and car. References on automotive radiator performance and analysis are also provided.
Validation of Design Parameters of Radiator using Computational ToolIRJET Journal
This document discusses the validation of design parameters for automobile radiators using computational tools. It presents two case studies where the thermal performance of radiators is analyzed using the log mean temperature difference (LMTD) and number of transfer units (NTU) methods and the results are compared to those from a computational software tool (HXCombine). The results show good agreement between the manual calculations and software outputs, validating the use of computational tools for radiator design. Parameters like heat transfer rate, outlet temperatures, effectiveness and heat transfer area are compared for both case studies. This research demonstrates that computational tools can accurately analyze and design radiator performance.
IRJET-V9I12214.Comparative Computational analysis of performance parameters f...IRJET Journal
This document presents a computational analysis comparing the performance of a shell and tube heat exchanger using different working fluids and a helical insert. It analyzes heat transfer rate, overall heat transfer coefficient, and effectiveness using water, SiO2 nanofluid at 0.4% volume fraction, and a helically twisted insert. The nanofluid and insert improve performance by increasing turbulence and the heat transfer coefficient compared to water alone. Calculations of nanofluid properties, heat exchanger parameters, and a performance evaluation criterion are presented. CFD analysis in SolidWorks is used to simulate and validate the virtual heat exchanger model against experimental results.
IRJET- Parametric Study on Radiator Test RigIRJET Journal
The document describes a parametric study conducted on a radiator test rig. The test rig was designed to test the performance of radiators under various air and hot water flow rate conditions. It consists of an automobile radiator, cooling fan, water pump, reservoirs, and temperature sensors. Experiments were conducted by heating the water in the reservoir and passing it through the radiator while varying the water and air flow rates. Inlet and outlet temperatures were measured and used to evaluate the heat transfer performance of the radiator. The rig allows for easy measurement of temperatures and compact, low-cost testing of radiators.
IRJET- Performance Analysis of Automobile RadiatorIRJET Journal
This document analyzes the performance of an automobile radiator at different air velocities. It begins with background on radiator design and operation. Assumptions are made to simplify the heat transfer analysis. Calculations are shown to determine the Nusselt number, heat transfer coefficient, fin efficiency, and overall heat transfer coefficient at varying air velocities and Reynolds numbers. Graphs illustrate trends such as Nusselt number and heat transfer coefficient increasing with Reynolds number. The analysis concludes that the radiator dimensions are suitable and cooling remains effective even at higher vehicle speeds, though fin efficiency decreases slightly with increasing Reynolds number.
Experimental Investigation on Heat Transfer of Cylindrical Oblique Fin Micro-...IRJET Journal
This document describes an experimental investigation into the heat transfer performance of cylindrical oblique fin micro-channel heat exchangers for automotive engine cooling systems. The study compares a straight fin micro-channel heat exchanger to one with 12 degree oblique fins. Experiments were conducted on a test rig to determine the heat transfer coefficient, effectiveness, and pressure drop of the two designs under various air and water flow rates. The results showed that the oblique fin micro-channel heat exchanger achieved higher heat transfer efficiency and a smaller size than the straight fin design, demonstrating its potential to improve engine cooling system performance and reduce radiator size in automobiles.
Modeling and Fluid Flow Analysis of Wavy Fin Based Automotive RadiatorIJERA Editor
In continuous technological development, an automotive industry has increased the demand for high efficiency engines. A high efficiency engines in not only based on its performance but also for better fuel economy and less emission rate. Radiator is one of the important parts of the internal combustion engine cooling system. The manufacturing cost of the radiator is 20 percent of the whole cost of the engine. So improving the performance and reducing cost of radiators are necessary research. For higher cooling capacity of radiator, addition of fins is one of the approaches to increase the cooling rate of the radiator. In addition, heat transfer fluids at air and fluid side such as water and ethylene glycol exhibit very low thermal conductivity. As a result there is a need for new and innovative heat transfer fluids, known as “Nano fluid” for improving heat transfer rate in an automotive radiator. Recently there have been considerable research findings highlighting superior heat transfer performances of nanofluids about 15-25% of heat transfer enhancement can be achieved by using types of nanofluids. With these specific characteristics, the size and weight of an automotive car radiator can be reduced without affecting its heat transfer performance. An automotive radiator (Wavy fin type) model is modeled on modeling software CATIA V5 and performance evaluation is done on pre-processing software ANSYS 14.0. The temperature and velocity distribution of coolant and air are analyzed by using Computational fluid dynamics environment software CFX. Results have shown that the rate of heat transfer is better when nano fluid (Si C + water) is used as coolant, than the conventional coolant.
IRJET- Performance Analysis of CI Engine Emission by Admitting Steam with...IRJET Journal
The document describes a study analyzing the performance and emissions of a diesel engine when steam is admitted with the inlet air. A heat exchanger is used to produce steam from the engine exhaust heat, which is then mixed with intake air at varying pressures up to 1.5 bar. Emissions of CO, CO2, HC and NOx are measured with and without steam admission. Results show that steam admission reduces all harmful emissions except CO2. However, brake thermal efficiency decreases slightly and fuel consumption increases when using steam. The document provides detailed test procedures, calculations of engine parameters and graphs comparing emission levels with and without steam admission.
Abstract:This paper deals with the thermal and CFD analysis of automobile radiator. The theoretical calculation has been done in MAT Lab by varying the mass flow rate of coolant. Modeling has been done in Solidworks and exported to Ansys for CFD analysis. The temperature distribution, heat transfer rate for different velocities of coolant to has been done for different tube materials such as copper, aluminium and stainless steel. The numerical results were compared and found that copper has best heat transfer rate and has better efficiency than the others.
IRJET- A Review : Design, Analysis & Optimization of Pipe Stack Heat Exchange...IRJET Journal
This document summarizes a review paper on the design, analysis, and optimization of a 22 meter pipe stack heat exchanger. It discusses pipe stack heat exchangers and their common use in industries. The paper reviews literature on heat exchanger design parameters like baffle position, cut percentage, tube patterns, and material selection. It describes modeling a heat exchanger in Solidworks software and analyzing it to optimize heat transfer and pressure drop. The document concludes that parameters like tube diameter, length, material, and temperature can improve heat transfer rates in pipe stack heat exchangers.
Optimization of time step and cfd study of combustion in di diesel engineeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Comparative Study Between Cross Flow Air To Air Plate Fin Heat Exchanger With...IRJET Journal
This document presents a comparative study between a cross flow air to air plate fin heat exchanger with triangular fins and one with triangular perforated fins. Computational fluid dynamics analysis was performed on the two designs. Taguchi analysis was then used to optimize the perforated design by varying plate thickness, fluid velocity, and plate height. The optimal design from Taguchi analysis had a plate thickness of 0.1mm, fluid velocity of 2m/s, and plate height of 3mm. CFD analysis found this optimized perforated design improved thermal effectiveness from 30-35% to 45.72% compared to the conventional triangular fin design.
CFD Simulation of Solar Air Heater having Inclined Discrete Rib Roughness wit...IRJET Journal
This document presents a computational fluid dynamics (CFD) simulation of a solar air heater duct with inclined discrete rib roughness and a staggered convex element. The study aims to develop a 3D CFD model to analyze heat transfer and fluid flow performance. Boundary conditions and material properties are defined. A mesh is generated and the RNG k-epsilon turbulence model is used. Results for velocity, temperature, and turbulent kinetic energy contours are presented along with charts showing variations in Nusselt number with Reynolds number and roughness pitch. Inclined discrete ribs with a staggered convex element are found to improve heat transfer in the solar air heater duct.
Numerically and CFD studies on shell and tube heat exchangersIRJET Journal
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IRJET- Experimental Investigation of Radiator using Tio2 Nano Fluid as CoolantIRJET Journal
The document presents an experimental investigation into using titanium dioxide (TiO2) nanofluid as a coolant in a car radiator. An experimental setup is designed to test the performance of the radiator using water, ethylene glycol, and TiO2 nanofluid as coolants. Various parameters like temperature difference, average heat transfer rate, effectiveness, and pressure drop are measured and compared between the different coolants. The results show that the TiO2 nanofluid provides better cooling performance than water or ethylene glycol alone, with higher heat transfer rates and effectiveness. This is due to the enhanced thermal conductivity provided by the titanium dioxide nanoparticles suspended in the base fluid. In conclusion, nanofluids show potential for improving the efficiency of autom
The document discusses CFD analysis of heat transfer rate through a heat exchanger with and without fins using hybrid nanofluid. It begins with an introduction and then discusses heat exchangers, their applications, importance and common failures. It outlines the objective of analyzing heat exchanger performance enhancement by considering fins design and using hybrid nanofluid as coolant. The methodology involves using ANSYS 18.2 software for the CFD analysis. Future work could involve experimental validation and analyzing performance for different heat exchanger geometries. Key references on the topics of heat transfer enhancement techniques, nanofluids, radiator analysis and CFD applications are also provided.
IRJET- Design and Computational Analysis of Shell and Tube Heat Exchanger Con...IRJET Journal
This document describes a computational fluid dynamics (CFD) analysis of a shell and tube heat exchanger considering various parameters. The analysis models and simulates the geometry of a shell and tube heat exchanger using ANSYS to study the temperature and pressure fields inside the shell. Variables analyzed include mass flow rate, baffle inclination angle, outlet temperature, and pressure drop. The results show increased heat exchanger performance with a helical baffle design compared to a conventional segmental baffle design.
Performance Analysis of Automobile RadiatorIRJET Journal
This document analyzes the performance of an automobile radiator. It describes the components of the cooling system, including the radiator, water heater, pump, thermometers and flow meter. An assembly is connected to circulate water and measure the inlet and outlet temperatures. Formulas are provided to calculate heat transfer rate, Nusselt number, Reynolds number and friction factor. The radiator performance is evaluated by measuring temperatures and calculating the heat transfer rate to determine how effectively it transfers heat from the engine. This analysis helps identify the best radiator for different applications.
IRJET- Door Access Security System using NFC TechnologyIRJET Journal
This document analyzes the performance of an automobile radiator. It describes the components of the cooling system, including the radiator, water heater, radiator pump, rotameter, and thermometers. The radiator is connected to these components to circulate heated water. Temperature and flow rate are measured and used to calculate heat transfer rate and efficiency metrics like Nusselt number and Reynolds number. The analysis found that measuring inlet/outlet temperatures and flow rate allows calculating the radiator's heat transfer rate, helping to identify the best radiator for different applications.
Advancements in Automotive Cooling: Computational Fluid Dynamics Analysis of ...IRJET Journal
This document reviews advancements in automotive cooling systems utilizing carbon-based hybrid nano coolants and computational fluid dynamics (CFD) analysis. It summarizes various studies that have used CFD simulations to analyze the performance of radiators and the impact of integrating nano coolants. Research has found that carbon-based hybrid nano coolants can enhance heat transfer and efficiency by increasing thermal conductivity while CFD helps understand fluid dynamics and thermal behavior within radiators. Overall, the document evaluates how nano coolants and CFD analysis can optimize radiator design and potentially improve sustainability in automotive cooling.
This document summarizes research on optimizing automotive radiator design. It discusses the importance of radiators in vehicle design and the need for optimization between performance, size, shape, and weight. Chapter 1 introduces the topic and Chapter 2 reviews related literature. Chapter 3 discusses the necessity of cooling systems to prevent overheating. Chapter 4 describes different radiator types. Chapter 5 reports on parametric studies examining the effects of operating conditions like air and coolant flow rates, temperatures, and coolant type on radiator performance. It also analyzes the influence of design parameters such as fin pitch, louver angle, and coolant flow layout. Figures and tables are referenced but not included.
An approach to evaluate the heat exchanger retrofit for installed industrial ...eSAT Journals
Abstract This paper is the first part of a two-part study aiming to introduce a new integrated approach to evaluate the techno-economic value of recuperator retrofit on existing gas turbine engines. The original gas turbines are designed for combined cycles so that the pressure ratios are moderate to secure suitable exhaust temperatures. One way to enhance the thermal efficiency of some gas turbines is by using recuperation to recover some of the exhaust heat. In this part, the developed model is described and implemented for two gas turbine engines so the obtained characteristics are evaluated against the actual data. The new approach will assist users to select the suitable gas turbine models with favorable recuperator characteristics based on a technical and economic prospective. Besides, the performance results are used to design an appropriate shell and tube heat exchanger. Moreover, a new technique has been established to define the typical heat exchanger parameters in order to ensure the highest possible improvements over the original cycles. One of the main features of this method is that it depends only on the velocity of hot and cold heat exchanger streams from which the rest of the heat exchanger design and performance characteristics were derived. Key Words: integrated approach, techno-economic value, recuperation, shell and tube heat exchanger, velocity
IRJET- CFD Analysis of Double Pipe Heat Exchanger with Different Inner Se...IRJET Journal
This document analyzes the heat transfer performance of a double pipe heat exchanger with circular and square inner sections using computational fluid dynamics (CFD). CFD simulations were conducted using ANSYS Fluent to analyze temperature contours and heat transfer rates. The results showed that the square inner section heat exchanger absorbed more heat from the hot fluid and had a higher heat flow rate than the circular section design, with the cold fluid outlet temperature being higher for the square section. In conclusion, the square inner section design exhibited better heat transfer performance compared to the conventional circular section design for this type of heat exchanger.
This document summarizes a study that used computational fluid dynamics (CFD) software to analyze air flow in a two-pass smooth square channel with a 180-degree turn. Simulations were performed using Gambit and Fluent software at Reynolds numbers from 10,000 to 60,000. Results for mass flow rate and heat transfer rate were compared to experimental data. Turbulence models like k-ε, k-ω, and Reynolds stress were used to simulate turbulent flow conditions.
CFD modelling calculation and simulation of busIRJET Journal
This document summarizes a CFD analysis of a bus interior to optimize passenger thermal comfort. The analysis uses CFD software to model the bus geometry and simulate air flow, temperature distribution, and passenger comfort under different operating conditions. Initial simulations were run with a coarse mesh to determine mesh size and turbulence parameters. Boundary conditions for the full simulation included an ambient temperature of 34°C, window heat flux of 250W/m2, and passenger temperature of 37°C. The full simulation results showed warmer temperatures and lower air velocities in the bus middle, indicating potential discomfort for those passengers. Modifications to the air ducts to increase middle airflow were recommended to improve thermal comfort.
Application of Pinch Technology in Refrigerator Condenser Optimization by Usi...ijtsrd
Refrigeration is the major application area of thermodynamics, in which the heat is transferred to higher temperature region from a lower temperature region. Refrigerators are the devices which produce refrigeration and the refrigerators which operate on the cycles are called refrigeration cycles. Pinch technology and computational fluid dynamics CFD is key for study the condenser and enhance the better option for new design. Pinch Analysis also known as process integration, heat integration, energy integration, or pinch technology is method for minimizing the energy costs of a process by reusing the heat energy in the process streams rather than outside utilities. Mr. Mayur B. Ramteke | Prof. S. K. Bawne "Application of Pinch Technology in Refrigerator Condenser Optimization by Using CFD" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-6 , October 2021, URL: https://www.ijtsrd.com/papers/ijtsrd46440.pdf Paper URL : https://www.ijtsrd.com/engineering/mechanical-engineering/46440/application-of-pinch-technology-in-refrigerator-condenser-optimization-by-using-cfd/mr-mayur-b-ramteke
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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IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
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IRJET- Experimental Investigation of Radiator using Tio2 Nano Fluid as CoolantIRJET Journal
The document presents an experimental investigation into using titanium dioxide (TiO2) nanofluid as a coolant in a car radiator. An experimental setup is designed to test the performance of the radiator using water, ethylene glycol, and TiO2 nanofluid as coolants. Various parameters like temperature difference, average heat transfer rate, effectiveness, and pressure drop are measured and compared between the different coolants. The results show that the TiO2 nanofluid provides better cooling performance than water or ethylene glycol alone, with higher heat transfer rates and effectiveness. This is due to the enhanced thermal conductivity provided by the titanium dioxide nanoparticles suspended in the base fluid. In conclusion, nanofluids show potential for improving the efficiency of autom
The document discusses CFD analysis of heat transfer rate through a heat exchanger with and without fins using hybrid nanofluid. It begins with an introduction and then discusses heat exchangers, their applications, importance and common failures. It outlines the objective of analyzing heat exchanger performance enhancement by considering fins design and using hybrid nanofluid as coolant. The methodology involves using ANSYS 18.2 software for the CFD analysis. Future work could involve experimental validation and analyzing performance for different heat exchanger geometries. Key references on the topics of heat transfer enhancement techniques, nanofluids, radiator analysis and CFD applications are also provided.
IRJET- Design and Computational Analysis of Shell and Tube Heat Exchanger Con...IRJET Journal
This document describes a computational fluid dynamics (CFD) analysis of a shell and tube heat exchanger considering various parameters. The analysis models and simulates the geometry of a shell and tube heat exchanger using ANSYS to study the temperature and pressure fields inside the shell. Variables analyzed include mass flow rate, baffle inclination angle, outlet temperature, and pressure drop. The results show increased heat exchanger performance with a helical baffle design compared to a conventional segmental baffle design.
Performance Analysis of Automobile RadiatorIRJET Journal
This document analyzes the performance of an automobile radiator. It describes the components of the cooling system, including the radiator, water heater, pump, thermometers and flow meter. An assembly is connected to circulate water and measure the inlet and outlet temperatures. Formulas are provided to calculate heat transfer rate, Nusselt number, Reynolds number and friction factor. The radiator performance is evaluated by measuring temperatures and calculating the heat transfer rate to determine how effectively it transfers heat from the engine. This analysis helps identify the best radiator for different applications.
IRJET- Door Access Security System using NFC TechnologyIRJET Journal
This document analyzes the performance of an automobile radiator. It describes the components of the cooling system, including the radiator, water heater, radiator pump, rotameter, and thermometers. The radiator is connected to these components to circulate heated water. Temperature and flow rate are measured and used to calculate heat transfer rate and efficiency metrics like Nusselt number and Reynolds number. The analysis found that measuring inlet/outlet temperatures and flow rate allows calculating the radiator's heat transfer rate, helping to identify the best radiator for different applications.
Advancements in Automotive Cooling: Computational Fluid Dynamics Analysis of ...IRJET Journal
This document reviews advancements in automotive cooling systems utilizing carbon-based hybrid nano coolants and computational fluid dynamics (CFD) analysis. It summarizes various studies that have used CFD simulations to analyze the performance of radiators and the impact of integrating nano coolants. Research has found that carbon-based hybrid nano coolants can enhance heat transfer and efficiency by increasing thermal conductivity while CFD helps understand fluid dynamics and thermal behavior within radiators. Overall, the document evaluates how nano coolants and CFD analysis can optimize radiator design and potentially improve sustainability in automotive cooling.
This document summarizes research on optimizing automotive radiator design. It discusses the importance of radiators in vehicle design and the need for optimization between performance, size, shape, and weight. Chapter 1 introduces the topic and Chapter 2 reviews related literature. Chapter 3 discusses the necessity of cooling systems to prevent overheating. Chapter 4 describes different radiator types. Chapter 5 reports on parametric studies examining the effects of operating conditions like air and coolant flow rates, temperatures, and coolant type on radiator performance. It also analyzes the influence of design parameters such as fin pitch, louver angle, and coolant flow layout. Figures and tables are referenced but not included.
An approach to evaluate the heat exchanger retrofit for installed industrial ...eSAT Journals
Abstract This paper is the first part of a two-part study aiming to introduce a new integrated approach to evaluate the techno-economic value of recuperator retrofit on existing gas turbine engines. The original gas turbines are designed for combined cycles so that the pressure ratios are moderate to secure suitable exhaust temperatures. One way to enhance the thermal efficiency of some gas turbines is by using recuperation to recover some of the exhaust heat. In this part, the developed model is described and implemented for two gas turbine engines so the obtained characteristics are evaluated against the actual data. The new approach will assist users to select the suitable gas turbine models with favorable recuperator characteristics based on a technical and economic prospective. Besides, the performance results are used to design an appropriate shell and tube heat exchanger. Moreover, a new technique has been established to define the typical heat exchanger parameters in order to ensure the highest possible improvements over the original cycles. One of the main features of this method is that it depends only on the velocity of hot and cold heat exchanger streams from which the rest of the heat exchanger design and performance characteristics were derived. Key Words: integrated approach, techno-economic value, recuperation, shell and tube heat exchanger, velocity
IRJET- CFD Analysis of Double Pipe Heat Exchanger with Different Inner Se...IRJET Journal
This document analyzes the heat transfer performance of a double pipe heat exchanger with circular and square inner sections using computational fluid dynamics (CFD). CFD simulations were conducted using ANSYS Fluent to analyze temperature contours and heat transfer rates. The results showed that the square inner section heat exchanger absorbed more heat from the hot fluid and had a higher heat flow rate than the circular section design, with the cold fluid outlet temperature being higher for the square section. In conclusion, the square inner section design exhibited better heat transfer performance compared to the conventional circular section design for this type of heat exchanger.
This document summarizes a study that used computational fluid dynamics (CFD) software to analyze air flow in a two-pass smooth square channel with a 180-degree turn. Simulations were performed using Gambit and Fluent software at Reynolds numbers from 10,000 to 60,000. Results for mass flow rate and heat transfer rate were compared to experimental data. Turbulence models like k-ε, k-ω, and Reynolds stress were used to simulate turbulent flow conditions.
CFD modelling calculation and simulation of busIRJET Journal
This document summarizes a CFD analysis of a bus interior to optimize passenger thermal comfort. The analysis uses CFD software to model the bus geometry and simulate air flow, temperature distribution, and passenger comfort under different operating conditions. Initial simulations were run with a coarse mesh to determine mesh size and turbulence parameters. Boundary conditions for the full simulation included an ambient temperature of 34°C, window heat flux of 250W/m2, and passenger temperature of 37°C. The full simulation results showed warmer temperatures and lower air velocities in the bus middle, indicating potential discomfort for those passengers. Modifications to the air ducts to increase middle airflow were recommended to improve thermal comfort.
Application of Pinch Technology in Refrigerator Condenser Optimization by Usi...ijtsrd
Refrigeration is the major application area of thermodynamics, in which the heat is transferred to higher temperature region from a lower temperature region. Refrigerators are the devices which produce refrigeration and the refrigerators which operate on the cycles are called refrigeration cycles. Pinch technology and computational fluid dynamics CFD is key for study the condenser and enhance the better option for new design. Pinch Analysis also known as process integration, heat integration, energy integration, or pinch technology is method for minimizing the energy costs of a process by reusing the heat energy in the process streams rather than outside utilities. Mr. Mayur B. Ramteke | Prof. S. K. Bawne "Application of Pinch Technology in Refrigerator Condenser Optimization by Using CFD" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-6 , October 2021, URL: https://www.ijtsrd.com/papers/ijtsrd46440.pdf Paper URL : https://www.ijtsrd.com/engineering/mechanical-engineering/46440/application-of-pinch-technology-in-refrigerator-condenser-optimization-by-using-cfd/mr-mayur-b-ramteke
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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.
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEMHODECEDSIET
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
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
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
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.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, Serbia
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.