The document summarizes a study that replaced a gas boiler system for heating an outdoor swimming pool in Rabat, Morocco with a hybrid geothermal/aerothermal variable refrigerant flow (VRF) heat pump system. A thermal analysis was conducted to size the new system based on filling the pool and maintaining its temperature. A 30% geothermal and 70% aerothermal VRF system with a total capacity of 411.93 kW for filling and 341.99 kW for maintenance was installed. After two years of operation, the study analyzed the electrical consumption of the new system to determine the real return on investment compared to the prior propane boiler system.
The document describes an air conditioning system with a ground source heat exchanger (ACSWGSHE) that was designed and tested. A conventional 1.5 ton split air conditioner was modified by replacing the condenser with a ground heat exchanger placed 15 meters underground. The heat exchanger was made of copper tubing in a helical coil shape. Testing showed the system performed best when the borehole was filled with water, achieving a coefficient of performance of 3.72, higher than the 2.11 COP of the conventional split system.
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- Nanofluids show potential for enhancing heat transfer in condensers due to their higher thermal conductivity compared to conventional fluids. Elliptical pin fins with nanofluid could improve forced convection heat transfer in condensers.
- Superhydrophobic coatings on condenser surfaces resulted in up to 30% reductions in pressure drop and pumping power requirements compared to conventional hydrophilic surfaces, improving hydraulic performance. Thermal resistance was also
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The document summarizes an energy audit conducted on a thermal power plant in Jordan. The power plant produces 14.36 MW through a Rankine cycle using natural gas. A preliminary energy audit evaluated the performance of the plant's components, including the boiler, turbine, condenser, and pumps. The results showed deviations in efficiency for all components compared to their design specifications. Specifically, the boiler had the largest deviation of 4.9% efficiency, likely due to poor water and fuel quality and heat loss. Several solutions were proposed to improve the plant's efficiency.
DESIGN AND DEVELOPMENT OF SOLAR WATER HEATING SYSTEM USING PHASE CHANGE MATERIALIRJET Journal
This document describes the design and development of a solar water heating system using phase change material (PCM) for thermal energy storage. It discusses selecting paraffin wax as a suitable PCM due to its melting temperature range of 45-55°C and high latent heat. The system was designed with a PCM-filled heat exchanger integrated into the solar water heating setup. Experimental results showed the PCM system increased average efficiency by 13% compared to a standard solar water heater without PCM, and kept water temperatures higher for longer periods after sunset. The prototype demonstrated the effectiveness of PCM for improving solar water heating system performance by storing thermal energy for use when solar radiation is unavailable.
The document describes an air conditioning system with a ground source heat exchanger (ACSWGSHE) that was designed and tested. A conventional 1.5 ton split air conditioner was modified by replacing the condenser with a ground heat exchanger placed 15 meters underground. The heat exchanger was made of copper tubing in a helical coil shape. Testing showed the system performed best when the borehole was filled with water, achieving a coefficient of performance of 3.72, higher than the 2.11 COP of the conventional split system.
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This document summarizes the design, development, and testing of an air conditioning system with a ground source heat exchanger (ACSWGSHE). The ACSWGSHE was tested with the borehole filled with still air, water, and sand. Testing found that the ACSWGSHE achieved the highest coefficient of performance (COP) of 3.72 when the borehole was filled with water, compared to a COP of 2.11 for a conventional split air conditioner. Power consumption was also 29% lower for the ACSWGSHE with water filling compared to the conventional system. However, when the borehole was filled with sand, the COP decreased to 1.07 due to improper heat exchange between the condenser
Review of Opportunities to Improve Steam Condenser with Nanofluids in Power P...IRJET Journal
This document reviews opportunities to improve steam condensers in power plants using nanofluids. The key points are:
- Steam condensers are an important but inefficient part of power plants, accounting for large losses. Improving condenser performance could significantly boost overall plant efficiency.
- Nanofluids show potential for enhancing heat transfer in condensers due to their higher thermal conductivity compared to conventional fluids. Elliptical pin fins with nanofluid could improve forced convection heat transfer in condensers.
- Superhydrophobic coatings on condenser surfaces resulted in up to 30% reductions in pressure drop and pumping power requirements compared to conventional hydrophilic surfaces, improving hydraulic performance. Thermal resistance was also
INDUSTRIAL WASTE HEAT USED IN TYPICAL THERMAL POWER PLANTIAEME Publication
An advanced waste heat and water recovery technology has been developed to extract a portion of the water vapor and its latent heat from flue gases based on a nonporous ceramic membrane capillary condensation separation mechanism. The recovered water is of high quality and mineral free, therefore can be used as supplemental makeup water for almost all industrial processes. The technology was first developed and proven at industrial demonstration scale for gas-fired package boilers,
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The document summarizes an energy audit conducted on a thermal power plant in Jordan. The power plant produces 14.36 MW through a Rankine cycle using natural gas. A preliminary energy audit evaluated the performance of the plant's components, including the boiler, turbine, condenser, and pumps. The results showed deviations in efficiency for all components compared to their design specifications. Specifically, the boiler had the largest deviation of 4.9% efficiency, likely due to poor water and fuel quality and heat loss. Several solutions were proposed to improve the plant's efficiency.
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CSP Training series : solar desalination (2/2)Leonardo ENERGY
Third session of the 2nd Concentrated Solar Power Training dedicated to Concentrating Solar Power and Desalination (CSP+D).
* Suitable configurations
* The energy lost method to global water & power efficiency comparison
* Desalination integration into solar power plants: MED versus RO
* CSP+D efficiencies estimation
* CSP+D ongoing research
Energy Conservation Opportunities in Cooling Tower.pdfNITIN ASNANI
A cooling tower works by evaporating a portion of circulating water to reject process heat into the atmosphere. It has components like fill media, drift eliminators, nozzles, and fans. Key performance parameters include range, approach, effectiveness, cooling capacity, and cycles of concentration. Cooling tower performance depends on factors like heat load, flow rate, wet bulb temperature, and approach. Proper sizing considers these factors and energy efficiency can be improved through control strategies and opportunities like optimized fan operation.
Mathematikal model of calclation parabola-cylindirical solar hot water system...SubmissionResearchpa
The article analyzes a mathematical model for calculating solar parabola cylindrical hot water systems for industrial and municipal enterprises. The formulas for determining heat losses associated with radiant and convective heat exchange, as well as useful heat energy and efficiency of solar parabola-cylindrical systems for obtaining heat for industrial purposes are given. by Sulaymonov Husanboy Mannopovich 2020. Mathematikal model of calclation parabola-cylindirical solar hot water systems of industrial enterprises. International Journal on Integrated Education. 3, 9 (Sep. 2020), 33-38. DOI:https://doi.org/10.31149/ijie.v3i9.584. https://journals.researchparks.org/index.php/IJIE/article/view/584/558 https://journals.researchparks.org/index.php/IJIE/article/view/584
IRJET- Design and Development of a Waste Heat Recovery Unit for Household Ref...IRJET Journal
The document describes a study to design and develop a waste heat recovery unit for a household refrigerator system. The researchers designed a new water-cooled condenser to replace the original air-cooled condenser. They integrated the new condenser with a waste heat recovery unit placed behind the refrigerator. Testing found that the water in the recovery unit could reach temperatures of around 50°C after 3 hours, with an average of 40°C. The new system did not significantly affect refrigerator performance while improving the overall efficiency by recovering waste heat.
IRJET- A Review of Solar Water Heater Performance FactorsIRJET Journal
This document reviews several factors that affect the performance of flat plate solar water heaters, including the type of fins, number of passes through the collector, absorber plate material selection, and mass flow rate. Specifically, it discusses research showing that collectors with inverted modified fins produced higher outlet water temperatures than those with standard fins. Studies also found that double pass collectors with internal fins achieved higher efficiencies than single pass collectors without fins. Additionally, absorber plates made from black painted clear toughened glass sandwiches performed better than those made from other materials like galvanized iron or aluminum. In general, the review indicates that design modifications aiming to increase surface area or number of heat transfers tend to improve collector performance.
The document summarizes research into recovering waste heat from milk powder spray dryers using thermochemical energy storage. A heat exchanger recovers 27% of the waste heat from dryer exhaust into heated air. This air charges a reactor that dehydrates strontium bromide hexahydrate, storing heat chemically. Modeling shows the system could provide heat for over 2,000 homes annually. However, transporting the chemical materials between locations for charging and discharging makes the system uneconomical due to high costs and emissions from two-way transportation. While promising technically, thermochemical storage is better suited for local rather than distributed heat recovery from this low-grade waste heat source.
IRJET- Experimental Analysis on Power Generation Unit using R134a Powered...IRJET Journal
This document describes an experimental analysis of a power generation unit that uses solar energy concentrated by a Fresnel lens to power an Organic Rankine Cycle (ORC) and generate electricity. R134a refrigerant is used as the working fluid. Key points:
- A Fresnel lens concentrates solar energy to heat a copper tube, vaporizing the R134a working fluid.
- The vapor drives a turbine that powers a generator. Lower boiling point fluids like R134a allow utilization of lower solar temperatures compared to water.
- Calculations are shown for system parameters like heat transfer rate, pressure drop, turbine power output, and thermal efficiency based on the ORC using R134a.
Experimental Investigation of Pool Boiling Enhancement on Different Structure...IRJET Journal
1) The document experimentally investigates pool boiling enhancement on different structured surfaces, including plain, V-shaped, and square structures.
2) The experiment was conducted in a boiling chamber by varying the electric supply and applying/not applying vibration. Surface temperature and heat flux were calculated.
3) The results showed that the square surface provided more appreciable heat flux and heat transfer coefficient compared to the other surfaces. Modifying the surface structure can enhance pool boiling heat transfer.
Waste Heat Recovery From Refrigeration PlantIRJET Journal
This document summarizes waste heat recovery from a refrigeration plant condenser. It discusses how the waste heat from a condenser, which is currently released into the environment, can instead be captured and used for applications like water heating. The document then provides technical details on heat transfer methods, refrigerants, and vapor compression refrigeration systems. It analyzes using the condenser waste heat from a 30-ton refrigeration plant to heat water up to 50°C, which could then be used for low-temperature household or industrial purposes. Capturing this waste heat improves overall system efficiency and reduces environmental impacts.
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This document summarizes a seminar report on Ocean Thermal Energy Conversion (OTEC) presented by two students. It discusses the working principle of OTEC, which uses the temperature difference between warm surface water and cold deep ocean water to run a heat engine and generate electricity. There are two types of OTEC systems - closed-cycle which uses working fluids like ammonia, and open-cycle which uses seawater directly. OTEC plants can be land-based, floating, or offshore. The document provides a brief history of OTEC and discusses its future potential as a renewable energy source.
This document provides a seminar report on Ocean Thermal Energy Conversion (OTEC) presented by two students. It discusses the working principle of OTEC, which uses the temperature difference between warm surface ocean water and cold deep water to run a heat engine and generate electricity. It classifies OTEC plants as either closed-cycle or open-cycle, and as either land-based or floating/offshore. It then reviews the history of OTEC development from the 1880s to recent projects. The future potential of OTEC and its benefits are also mentioned.
Self Sufficient Atmospheric Water Generator using Renewable EnergyIRJET Journal
This document summarizes a research paper on an atmospheric water generator (AWG) that uses renewable energy sources to operate independently. The proposed AWG design uses a peltier module powered by a solar panel and battery to cool air below its dew point and extract water. It discusses the construction of the system using various components like the solar panel, battery, heat pipe, exhaust fan and peltier module. The document also explains the working principle of how solar energy is used to power the peltier module and generate water from atmospheric moisture. Experimental results on water generation at different voltages are presented and factors affecting the system performance are discussed along with potential applications and scope for future improvement.
This document is a seminar report submitted by Mukesh Kumar for partial fulfillment of a Bachelor of Technology degree in Mechanical Engineering. It discusses thermal power plants, including an overview of their operation and efficiency, descriptions of typical components like boilers and steam cycles, and examples of power plants located in India with a focus on those in Rajasthan. The document received certification from internal and external examiners for Mukesh Kumar's seminar work on the topic of thermal power plants.
This document provides an overview of a Building Systems course, including topics like energy transfer, thermodynamics, air and water heating/cooling processes, heat transfer mechanisms, design conditions, and calculating heating loads. It discusses sensible and latent heat calculations for air and water, includes examples of heating load problems, and covers principles of estimating heating loads such as accounting for envelope transmission losses, infiltration, and design indoor/outdoor temperatures while excluding internal and solar heat gains.
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This document summarizes a study on using waste heat from an internal combustion (IC) engine exhaust to power an absorption refrigeration system for vehicle air conditioning. The researchers conducted an experiment on a 4-cylinder diesel engine and measured exhaust temperatures from 85-223°C under different loads. They calculated that 101 kJ/min of heat is carried away in the exhaust gases. The document then reviews previous studies on using exhaust heat for vehicle air conditioning and absorption refrigeration systems. It also presents heat load calculations for a vehicle cabin, showing a total cooling load of around 2,154 kJ needed between 10am-4pm. The goal is to use the waste exhaust heat to meet this cooling load through an absorption refrigeration system
1) The document discusses using nanofluids as a coolant in nuclear reactor fuel rods to improve heat transfer efficiency. Nanofluids are fluids containing nanoparticles that have higher thermal conductivity than conventional fluids.
2) A simulation was conducted modeling a nuclear fuel rod cooled by water and a nanofluid (water with 3% aluminum oxide nanoparticles). Results showed a 225% increase in heat extracted from the fuel rod when using nanofluids.
3) This increased heat extraction could reduce the required amount of uranium used in the reactor by 4.8%, providing economic benefits.
The behavior of a novel low-profile concentrating solar thermal collector was investigated for an industrial metal processing application requiring 180°C heat. Simulations found the collector could provide 53% of the daily 260 kWh thermal load in Sydney with a 200m2 collector area. With 50% government subsidies, the system had an 11-year payback period and net present value of $69,641 over 20 years due to increased gas prices. Further research could reduce costs and improve efficiency for more attractive economics.
IRJET- Application of Nanofluids to Improve Performance of a Flat Plate Solar...IRJET Journal
This document reviews research on using nanofluids to improve the performance of flat plate solar collectors. Nanofluids are fluids containing nano-sized particles that can enhance heat transfer properties. Several studies have found that nanofluids can increase heat transfer coefficients and collector efficiencies compared to using plain water. Specifically, alumina, copper oxide, and carbon nanotubes dispersed in water have shown efficiency improvements of up to 29% relative to water alone. Higher nanofluid concentrations and lower flow rates tend to increase efficiency, up to an optimal point. Overall, the literature demonstrates that nanofluids have promising potential to enhance flat plate solar collector performance.
The document summarizes a proposed project to build a steam methane reforming plant in Alberta capable of producing 50,000 Nm3 of hydrogen per hour. It details the plant's design requirements, including feedstock needs, operating costs, and economic analysis. The plant would produce hydrogen primarily through steam methane reforming of natural gas, and the document evaluates this process as well as alternatives like dry reforming of methane. It ultimately recommends constructing one to four similar hydrogen production plants in Alberta.
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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The document describes a study to design and develop a waste heat recovery unit for a household refrigerator system. The researchers designed a new water-cooled condenser to replace the original air-cooled condenser. They integrated the new condenser with a waste heat recovery unit placed behind the refrigerator. Testing found that the water in the recovery unit could reach temperatures of around 50°C after 3 hours, with an average of 40°C. The new system did not significantly affect refrigerator performance while improving the overall efficiency by recovering waste heat.
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This document reviews several factors that affect the performance of flat plate solar water heaters, including the type of fins, number of passes through the collector, absorber plate material selection, and mass flow rate. Specifically, it discusses research showing that collectors with inverted modified fins produced higher outlet water temperatures than those with standard fins. Studies also found that double pass collectors with internal fins achieved higher efficiencies than single pass collectors without fins. Additionally, absorber plates made from black painted clear toughened glass sandwiches performed better than those made from other materials like galvanized iron or aluminum. In general, the review indicates that design modifications aiming to increase surface area or number of heat transfers tend to improve collector performance.
The document summarizes research into recovering waste heat from milk powder spray dryers using thermochemical energy storage. A heat exchanger recovers 27% of the waste heat from dryer exhaust into heated air. This air charges a reactor that dehydrates strontium bromide hexahydrate, storing heat chemically. Modeling shows the system could provide heat for over 2,000 homes annually. However, transporting the chemical materials between locations for charging and discharging makes the system uneconomical due to high costs and emissions from two-way transportation. While promising technically, thermochemical storage is better suited for local rather than distributed heat recovery from this low-grade waste heat source.
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This document summarizes waste heat recovery from a refrigeration plant condenser. It discusses how the waste heat from a condenser, which is currently released into the environment, can instead be captured and used for applications like water heating. The document then provides technical details on heat transfer methods, refrigerants, and vapor compression refrigeration systems. It analyzes using the condenser waste heat from a 30-ton refrigeration plant to heat water up to 50°C, which could then be used for low-temperature household or industrial purposes. Capturing this waste heat improves overall system efficiency and reduces environmental impacts.
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This document provides a seminar report on Ocean Thermal Energy Conversion (OTEC) presented by two students. It discusses the working principle of OTEC, which uses the temperature difference between warm surface ocean water and cold deep water to run a heat engine and generate electricity. It classifies OTEC plants as either closed-cycle or open-cycle, and as either land-based or floating/offshore. It then reviews the history of OTEC development from the 1880s to recent projects. The future potential of OTEC and its benefits are also mentioned.
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This document is a seminar report submitted by Mukesh Kumar for partial fulfillment of a Bachelor of Technology degree in Mechanical Engineering. It discusses thermal power plants, including an overview of their operation and efficiency, descriptions of typical components like boilers and steam cycles, and examples of power plants located in India with a focus on those in Rajasthan. The document received certification from internal and external examiners for Mukesh Kumar's seminar work on the topic of thermal power plants.
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1) The document discusses using nanofluids as a coolant in nuclear reactor fuel rods to improve heat transfer efficiency. Nanofluids are fluids containing nanoparticles that have higher thermal conductivity than conventional fluids.
2) A simulation was conducted modeling a nuclear fuel rod cooled by water and a nanofluid (water with 3% aluminum oxide nanoparticles). Results showed a 225% increase in heat extracted from the fuel rod when using nanofluids.
3) This increased heat extraction could reduce the required amount of uranium used in the reactor by 4.8%, providing economic benefits.
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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.
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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.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
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.
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