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Articles 67081 - 67110 of 5157489
Full-Text Articles in Entire DC Network
Optimal Operational Conditions Of Pla/Pbat Mixed Matrix Membrane For The Treatment Of Oily Wastewater, Maryam Ghadhban, Khalid Rashid, Adnan Abdulrazak, Hicham Meskher, Yacine Benguerba, Emad Yousif Al-Sarraj, Qusay Alsalhy
Optimal Operational Conditions Of Pla/Pbat Mixed Matrix Membrane For The Treatment Of Oily Wastewater, Maryam Ghadhban, Khalid Rashid, Adnan Abdulrazak, Hicham Meskher, Yacine Benguerba, Emad Yousif Al-Sarraj, Qusay Alsalhy
Engineering and Technology Journal
This study aims to optimize the operational variables influencing the incorporation of Hesperidin nanoparticles (HSP NPs) into poly(lactic acid)/poly(butylene adipate-co-terephthalate) (PLA/PBAT) for manufacturing mixed matrix membranes (MMMs) for oily wastewater treatment. An optimization method was employed to determine the optimal values for key process factors to achieve specific flux and rejection rates exceeding required levels. Statistical techniques such as response surface methodology (RSM) and analysis of variance (ANOVA) were used to enhance performance on a larger scale. This research investigated the impact of operating parameters on the flux and oil rejection of PLA/PBAT/HSP membranes across all samples. The variables studied …
Applications Of Artificial Intelligence In Nanotechnology, Shahad Eabd Alrida, Ola Obed, Elaf Taha, Thamer Abdullah, Mustafa Hathal, Viola Somogyi
Applications Of Artificial Intelligence In Nanotechnology, Shahad Eabd Alrida, Ola Obed, Elaf Taha, Thamer Abdullah, Mustafa Hathal, Viola Somogyi
Engineering and Technology Journal
Artificial intelligence (AI) is emerging as a prominent technological advancement. It is the act of replicating human intelligence for many purposes. In contrast to conventional methodologies, artificial intelligence (AI) is undergoing tremendous advancements. The present state of artificial intelligence (AI) technology enables them to effectively address numerous intricate difficulties with proficiency comparable to a human's. The significance of advancements in AI is particularly evident in machine learning, where the techniques and algorithms are effectively applied to address many problems, including those in nanotechnology. In contemporary nanotechnology, it is crucial to expedite the search for the most favorable synthesis parameters while …
Impact Of Surface-Modified Silica And Magnesium Oxide Nanoparticles On The Flow Behaviour Of East Baghdad Crude Oil And Emulsion, Mohammed Nasera, Asawer Alwasiti, Riyadh Almukhtar, Mazin Shibeeb
Impact Of Surface-Modified Silica And Magnesium Oxide Nanoparticles On The Flow Behaviour Of East Baghdad Crude Oil And Emulsion, Mohammed Nasera, Asawer Alwasiti, Riyadh Almukhtar, Mazin Shibeeb
Engineering and Technology Journal
The transportation of crude oil naturally, including emulsion from the wellhead to the processing facility, presents a challenge in the oil industry, particularly as wells age and the production of associated water increases. To improve the flowability of the emulsified oil, traditional methods for reducing the viscosity, such as dilution and heating, are costly and energy-intensive. However, nanotechnology offers a potential solution to improve flowability and crude oil behavior. This paper examines how adding 3% wt of surface-modified silicon dioxide (SiO2) and magnesium oxide (MgO) nanoparticles impacts the flow properties of an emulsion containing East Baghdad crude oil. The investigation …
A Model Predictive Control-Based Statcom For Weak Grid Voltage Enhancement, Adeola Balogun, Emeka Esenwa, Sunday Adetona, Ayobami Olajube, Ayokunle Awelewa, Frank Okafor
A Model Predictive Control-Based Statcom For Weak Grid Voltage Enhancement, Adeola Balogun, Emeka Esenwa, Sunday Adetona, Ayobami Olajube, Ayokunle Awelewa, Frank Okafor
Engineering and Technology Journal
This paper presents a model predictive control (MPC) technique for the control of reactive power flow from a static synchronous compensator (STATCOM) into a weak power system network. The MPC strategy enables the STATCOM to mitigate weak phase voltage magnitudes in a distribution grid. The weak voltage magnitudes usually emanate from large inductive loads connected to the grid’s point of common coupling (PCC). The MPC utilizes a finite control set of voltage vectors to minimize a cost function, which reduces the errors between set references and the corresponding predicted variables. The references in the cost function are set by two …
Control System Design Of A Pin-On-Disc Wear Machine Using Plc, Huda Mohammed, Khansaa Salman Abed, Ahmed Reja
Control System Design Of A Pin-On-Disc Wear Machine Using Plc, Huda Mohammed, Khansaa Salman Abed, Ahmed Reja
Engineering and Technology Journal
This study presents the design and implementation of a control system for a Pin-on-Disc wear testing machine using a Programmable Logic Controller (PLC). The novel approach employed involves adjusting the applied pressure on the pin, rather than the conventional method of altering weights, to evaluate the impact of varying loads on the wear rate. This method enhanced the accuracy of wear results by 25% compared to traditional techniques. The control system was developed and implemented with a Human-Machine Interface (HMI) that interacts with the PLC to control and monitor key parameters, including applied load, temperature, rotational speed, sliding time, and …
Anfis Control Of Four-Quadrant Dc/Dc Chopper For Wireless Ev Charging, Hawraa Hameed, Hosham Anead, Khalid Sultan
Anfis Control Of Four-Quadrant Dc/Dc Chopper For Wireless Ev Charging, Hawraa Hameed, Hosham Anead, Khalid Sultan
Engineering and Technology Journal
Wireless charging of electric vehicles (EVs) poses issues like power ripples that reduce battery lifetime. This study proposes a four-quadrant DC/DC chopper controlled by an adaptive neuro-fuzzy controller (ANFIS) for wireless EV charging. The system is modeled and simulated in Matlab/Simulink. Compared to a PI-PSO controller, the proposed ANFIS control reduced the ripple factor in power over half to about 0.7% and optimized stability and efficiency. Though settling time increased, the difference in rise time was negligible. Future work will improve dynamic response. The ANFIS-controlled DC/DC chopper enhances wireless charging performance with minimal power ripples for safe, efficient EV power …
Modeling And Control Of A High-Quality Electro-Hydraulic Actuator Driven Via An Induction Motor Under Intelligent Indirect Vector Control, Aws Hassan, Jamal Mohammed, Walaa Hashim
Modeling And Control Of A High-Quality Electro-Hydraulic Actuator Driven Via An Induction Motor Under Intelligent Indirect Vector Control, Aws Hassan, Jamal Mohammed, Walaa Hashim
Engineering and Technology Journal
Due to its excellent energy efficiency and broad speed range, the variable-speed electro-hydraulic drive is an appealing driving principle in many contemporary industrial applications. A primary control of linear motion is via a variable-speed electric motor driving a hydraulic actuator via a constant displacement pump. One of the most commonly used controllers for the speed control of induction motors is the Proportional Integral (PI) type. However, the traditional PI controller has some disadvantages, such as the high starting overshoot, sensitivity to controller gains, and sluggish response due to sudden disturbance. An intelligent controller based on PI Fuzzy logic set theory …
Survey Of Near-Field Wireless Communication And Power Transfer For Biomedical Implants, Hala Abduljaleel, Saad Mutashar, Sadik Gharghan
Survey Of Near-Field Wireless Communication And Power Transfer For Biomedical Implants, Hala Abduljaleel, Saad Mutashar, Sadik Gharghan
Engineering and Technology Journal
Bio-implanted medical devices with electronic components play a crucial role due to their effectiveness in monitoring and diagnosing diseases, enhancing patient comfort, and ensuring safety. Recently, significant efforts have been conducted to develop implantable and wireless telemetric biomedical systems. Topics such as appropriate near-field wireless communication design, power use, monitoring devices, high power transfer efficiency from external to internal parts (implanted), high communication rates, and the need for low energy consumption all significantly influence the advancement of implantable systems. In this survey, a comprehensive examination is undertaken on diverse subjects associated with near-field wireless power transfer (WPT)-based biomedical applications. The …
Realization Of An All-Optical D And T Flip Flops With Nano-Structure Using Hybrid Plasmonic Waveguides, Saif Abdulwahid, Ahmed Wadday, Sinan Abdul Sattar
Realization Of An All-Optical D And T Flip Flops With Nano-Structure Using Hybrid Plasmonic Waveguides, Saif Abdulwahid, Ahmed Wadday, Sinan Abdul Sattar
Engineering and Technology Journal
Surface waves are electromagnetic waves propagating along the interface between a metal and an insulator. Surface waves break the diffraction limits and enable light to propagate in sub-wavelength structures. That opens the field of electro-opto devices. The main drawbacks of surface waves that move in the Plasmonic Waveguides (PWs) are propagation loss and low light confinement. Using a combination of the plasmonic waveguide and a Dielectric Waveguide (DW), the defect of the surface waves can be enhanced, and the Hybrid Plasmonic waveguide (HPW) is introduced. In this research, the design of an all-optical flip flop with 400 nm × 400 …
Effect Of The Material Properties Of The Rotor-Disc On The Performance Of Eddy Current Braking Systems, Ahmed Salman, Jamal Mohammed, Farag Mohammed
Effect Of The Material Properties Of The Rotor-Disc On The Performance Of Eddy Current Braking Systems, Ahmed Salman, Jamal Mohammed, Farag Mohammed
Engineering and Technology Journal
Failure of traditional brakes occurs due to raised temperatures and the formation of structural fractures caused by wear and strain. For resolving mechanical brake problems, consider employing contactless braking technology, also known as eddy current braking, which offers a smoother deceleration. This research aims to assess the suitability of multi-materials for designing brake discs (ECBs) for use in automobiles. The choice of material for the rotor disc is crucial in the design of eddy current brakes. Different material factors impact the performance of these brakes. Therefore, there is a need for a material that possesses superior mechanical properties, high electrical …
A Comprehensive Review Of The Hybrid Heating Systems Consisting Of Heat Pumps And Solar Collectors For Hot Water And Space Heating Application, Ghazwan Mohammed, Ahmed Saleh, Abdul Hadi Khalifa
A Comprehensive Review Of The Hybrid Heating Systems Consisting Of Heat Pumps And Solar Collectors For Hot Water And Space Heating Application, Ghazwan Mohammed, Ahmed Saleh, Abdul Hadi Khalifa
Engineering and Technology Journal
A solar-assisted heat pump system is a hybrid system that integrates a solar collector and a heat pump, serving diverse functions such as space conditioning, drying, and generating heated water. The system's classification is based on the connection configuration of the solar collector and heat pump, which may involve a serial, parallel, or dual arrangement. Solar-assisted heat pump systems enhance output efficiency by harnessing solar energy in various heating modes, with the effectiveness contingent on the prevailing environmental conditions. As stated above, these systems are essential in lowering power consumption and reducing emissions. This study comprehensively assesses the research and …
Effect Of Nano And Nanocomposite Coating On Pool Boiling Heat Transfer, Ali Al-Obaidy, Ekhlas Fayyadh, Amer Al-Dabagh
Effect Of Nano And Nanocomposite Coating On Pool Boiling Heat Transfer, Ali Al-Obaidy, Ekhlas Fayyadh, Amer Al-Dabagh
Engineering and Technology Journal
High heat generation is the main problem that sophisticated electronic devices can suffer. The pool boiling process can offer an excellent heat dispassion at constant temperatures. Therefore, it is one of the most powerful cooling processes used in nuclear power plants, data centers, air conditioning, etc. Because of that, enhancing pool boiling has become a goal of many recent investigations. The current paper presents an experimental study to evaluate the effect of nano and nanocomposite coating on the performance of pool boiling of deionized water under atmospheric pressure. Four surfaces made of copper were used in this study: smooth, CNT …
Parametric Analysis For Performance And Emissions Of Gasoline Direct Injection Engine Using Mathematical Modelling, Omar Yousif, Mahmoud Mashkour
Parametric Analysis For Performance And Emissions Of Gasoline Direct Injection Engine Using Mathematical Modelling, Omar Yousif, Mahmoud Mashkour
Engineering and Technology Journal
The study aims to estimate the performance and emissions of a gasoline direct injection (GDI) engine by analyzing parameters such as engine speed between 2000 and 6000 rpm, compression ratio (CR) between 9 and 13, and the start of ignition between 140 and 180 deg. A thermodynamic mathematical model was developed using MATLAB to simulate the two-zone combustion process of a four-cylinder, four-stroke direct injection engine operating on gasoline at specified parameters. The results showed that parameter variations greatly affect the performance and emissions of the GDI engine. The highest values of in-cylinder pressure, burned and unburned temperature, cumulative engine …
Small-Scale Thermoelectric Incinerator Prototype For Sustainable Waste Management And Power Generation, Yepy Sofi’I, Sudarman Sudarman, Roro Hendaryati, Suwarsono Suwarsono, Andinusa Rahmandhika, Rizki Hidayatulloh, Muhammad Budiman, Galuh As'adi, Ramdhan Zaroby, Willy Nugroho
Small-Scale Thermoelectric Incinerator Prototype For Sustainable Waste Management And Power Generation, Yepy Sofi’I, Sudarman Sudarman, Roro Hendaryati, Suwarsono Suwarsono, Andinusa Rahmandhika, Rizki Hidayatulloh, Muhammad Budiman, Galuh As'adi, Ramdhan Zaroby, Willy Nugroho
Engineering and Technology Journal
Indonesia faces a significant challenge in managing its waste effectively. Conventional incineration, while reducing waste volume, raises environmental concerns due to emissions. This research explores a novel approach by developing a thermoelectric incinerator prototype with a 10 kg/hour capacity. The incinerator aims to convert heat generated during waste incineration into electrical energy, offering an environmentally friendly alternative for waste management. The research involved designing and modeling the incinerator using Ansys Fluent 2021 R1 software. Incineration tests were conducted experimentally using 5 kg organic and 5 kg inorganic waste for 30 minutes. Critical parameters such as temperature distribution, moisture content, calorific …
Exploring The Impact Resistance Of Hybrid Sandwich Composite Body Armor Through Experimental Analysis, Waad Khalaf, Mohsin Hamzah
Exploring The Impact Resistance Of Hybrid Sandwich Composite Body Armor Through Experimental Analysis, Waad Khalaf, Mohsin Hamzah
Engineering and Technology Journal
Hybrid composite sandwich structures, known for remarkable energy absorption, rigidity, and strength, are emerging as a preferred choice for fortifying structures against a diverse range of firearms and artillery. Despite their higher density, these panels demonstrate commendable qualities, making them optimal for armored vehicles and body armor. Numerous structural options compete for recognition as effective ballistic shields in today's context. In this study, three sample configurations were rigorously tested for ballistic impact using a 7.62×39 mm bullet. The first sample (S1) comprised silicon carbide ceramic tiles (SiC), Kevlar fiber, and carbon fiber in the face sheet, with an unfilled aluminum …
Estimating The Wear Behavior Of Hdpe Composites Reinforced With Nano Alumina Fillers Using Taguchi Method, Orhan Abdullah
Estimating The Wear Behavior Of Hdpe Composites Reinforced With Nano Alumina Fillers Using Taguchi Method, Orhan Abdullah
Engineering and Technology Journal
High-density polyethylene (HDPE), like other polymers is important in many applications due to its unique properties like low cost, weight, and availability. Recently, HDPE reinforced with ceramic fillers was considered in biomedical applications, especially in fabricating joint/bone replacements. Therefore, these applications required high wear resistance materials to serve under specific conditions. In this work, an optimization with Taguchi method was considered to associate the influence of nano alumina fillers, normal applied load, and sliding time on the wear rate values for hip joint replacement applications. In the first step, a TEM test was conducted on the prepared composites to ensure …
Modeling And Analysis Of Thermoelectric Atmospheric Water Generation In The Economic City Of Iraq, Ammar Al-Tajer, Wissam Alawee, Hayder Dhahad, Zakaria Omara
Modeling And Analysis Of Thermoelectric Atmospheric Water Generation In The Economic City Of Iraq, Ammar Al-Tajer, Wissam Alawee, Hayder Dhahad, Zakaria Omara
Engineering and Technology Journal
Atmospheric Water Generation assumes substantial significance as an innovative remedy for addressing water scarcity and augmenting water resilience. This technology facilitates water extraction directly from the atmosphere, presenting a sustainable and decentralized approach to water supply. The investigation into the feasibility of attaining the dew point temperature for a heatsink operating in the climatic conditions of Basra was conducted using Fluent 22.1 software. The minimum dew point temperature under extreme conditions was determined to be 10.52℃. A thermoelectric device was a primary component in cooling the moisture-laden air to produce water from atmospheric air. Simulations were executed using two complementary …
Enhancing Performance Of Double-Slope Solar Stills Through Optimization Of Heat Addition Methods: A Comprehensive Analysis, Mariam Murad, Wissam Alawee, Hayder Dhahad, Z.M. Omara
Enhancing Performance Of Double-Slope Solar Stills Through Optimization Of Heat Addition Methods: A Comprehensive Analysis, Mariam Murad, Wissam Alawee, Hayder Dhahad, Z.M. Omara
Engineering and Technology Journal
This comprehensive research paper reviews the latest techniques to enhance the productivity of double-slope solar stills by providing quantitative data on key research outcomes. With the global water scarcity crisis and the need for effective desalination technology, this study focuses on solar-based desalination techniques and their specific application in double-slope solar stills. This paper offers a comprehensive and quantitative analysis of heat addition methods in double-slope solar stills by examining published research findings, providing valuable insights for researchers and practitioners. The study reveals significant improvements in productivity through various modifications. Evaporation enhancement, heat transfer enhancement, and condensation enhancement have proven …
Characterization Of Alkaline Treated Raffia Palm Fibres As Reinforcement In Polymer Composite, Ipilakyaa Daniel, Tile Emmanuel, Nyior Bem, Gundu Terfa
Characterization Of Alkaline Treated Raffia Palm Fibres As Reinforcement In Polymer Composite, Ipilakyaa Daniel, Tile Emmanuel, Nyior Bem, Gundu Terfa
Engineering and Technology Journal
The characterization of raffia palm fibre (RPF) for reinforcement in polymer composite for specialized applications was studied. The fibres were treated with NaOH solution and subjected to a tensile strength test. The fibres were also subjected to spectroscopy using Fourier transform infrared (FTIR), energy dispersive x-ray fluorescence (EDXRF), and x-ray diffraction (XRD). The study found that the alkaline-treated RPF presented a tensile strength of 195 MPa and Young’s modulus of 91.76 MPa. The strain at maximum stress in the fibre was found to be 2.125%. FTIR spectra of treated raffia palm fibres revealed that the fibres are characterized by O-H …
Effect Of Tool Profile On Micro Hardness, Forming Limit, And Final Thickness In Incremental Hole Flanging Process Of Dc01 Steel And Aa1050 Sheet Metals, Hunar M. Ali, Hameed Lafta, Ayad Shahab
Effect Of Tool Profile On Micro Hardness, Forming Limit, And Final Thickness In Incremental Hole Flanging Process Of Dc01 Steel And Aa1050 Sheet Metals, Hunar M. Ali, Hameed Lafta, Ayad Shahab
Engineering and Technology Journal
The present study delves into the incremental hole flanging process applied to AA1050 and DC01 sheet metals with 0.7 and 1 mm thicknesses. Employing a distinctive lathe-based fixture, the process utilizes a proposed tool profile and fixture incorporating mutually spinning and rolling motions. The investigation covers three forming angles (72°, 90°, and 45°) and three different rotational forming speeds (170, 350, and 525 RPM). The primary objective is to assess the impact of tool forming angle, forming speeds on microhardness, thickness ratio, and forming limit diagram. The study employs a microhardness test, measurements of flange height, and final thickness. Results …
3d Printing For Wind Turbine Blade Manufacturing: A Review Of Materials, Design Optimization, And Challenges, Ahmed Zarzoor, Alaa Jaber, Ahmed Shandookh
3d Printing For Wind Turbine Blade Manufacturing: A Review Of Materials, Design Optimization, And Challenges, Ahmed Zarzoor, Alaa Jaber, Ahmed Shandookh
Engineering and Technology Journal
Wind energy has become an easy-to-harness source by converting captured wind currents into electrical energy. Powerful and customizable wind turbines are used to convert wind energy efficiently. However, wind turbine development in terms of structure is still an active area of research aiming at efficiently building capable and long-lasting turbines. Additive manufacturing technology, particularly 3D printing, has revolutionized multiple industries, including its potential to create wind turbine blades with high cost-effectiveness and optimizable shapes and rigid structures. In this review, various 3D printing-based techniques, including Fused Deposition Modelling (FDM), Continuous Fiber Reinforcement (CFR), Stereolithography (SLA), and 3D Printing-enhanced Large-Scale Additive …
Theoretical And Experimental Investigation Of The Effect Of Heat Flux To Lift Water In A Solar Bubble Pump, Ihab Omar, Ahmed Saleh, Ahmed Alhusseny
Theoretical And Experimental Investigation Of The Effect Of Heat Flux To Lift Water In A Solar Bubble Pump, Ihab Omar, Ahmed Saleh, Ahmed Alhusseny
Engineering and Technology Journal
In remote areas, a scarcity of accessible water poses a significant predicament, and sun-powered propelling contraptions offer promising solutions. It is possible to collect solar energy with the goal of raising a fluid. Bubble pumps are used in the process of creating two-phase flows via the boiling of fluids in diffusion-absorption refrigeration cycles. In this investigation, a solar-powered bubble pump lifted the water. EES, which stands for engineering equation solver, was used in order to carry out the theoretical study of the bubble pump technology. Based on the results, it was determined that the void fraction displays a pattern that …
The Impact Of Electronic Control Systems On Improving The Performance Of The Solar Heater, Ekram Alaskaree, Younus Breesam
The Impact Of Electronic Control Systems On Improving The Performance Of The Solar Heater, Ekram Alaskaree, Younus Breesam
Engineering and Technology Journal
In this study, the effect of an electronic control system (ECS) on the performance of a solar heater fabricated from recycled materials was investigated . The study found that the maximum thermal energy output before installing the ECS stood at 378 W, which was significantly improved to 450 W after integration, indicating a commendable enhancement in the efficiency of the solar heater. The thermal efficiency of the solar heater also saw a substantial jump from 71.7% to 82% after connecting the ECS. The study also uncovered the temperature disparity between the trapped and ambient air (max. ΔT = 20.4 °C) …
Experimental Analysis And Combustion Characteristics Of Briquettes From Different Wood In Nigeria, Oluwaseyi Alabi, Timothy Adeyi, Sakiru Ekun
Experimental Analysis And Combustion Characteristics Of Briquettes From Different Wood In Nigeria, Oluwaseyi Alabi, Timothy Adeyi, Sakiru Ekun
Engineering and Technology Journal
The increasing demand for sustainable and renewable energy sources has prompted extensive research into alternative biomass fuels, particularly in regions like Nigeria, where traditional wood-based fuels are prevalent. A comprehensive experimental analysis of briquettes derived from various wood sources found in Nigeria aims to assess their combustion characteristics and potential as a viable alternative to traditional fuels. The selected wood species include indigenous varieties known for their abundance and accessibility. This study examines the physical and thermal properties of briquettes made from six wood types commonly found in Nigeria: Ayo, Obobo, Obeche, Araba, Afara, and Eku. From the experiment study, …
Computational Insights Into The Thermal Performance Enhancement Of Solar Air Heater Channel Through Metal Foam Integration, Kadhim Al-Chlaihawi, Moayed Hasan, Ali Kaied
Computational Insights Into The Thermal Performance Enhancement Of Solar Air Heater Channel Through Metal Foam Integration, Kadhim Al-Chlaihawi, Moayed Hasan, Ali Kaied
Engineering and Technology Journal
The two-dimensional numerical simulations focused on fluid flow and heat transfer within a solar air heater (SAH) channel incorporating copper metal foam with a porosity of 90% were carried out in this study. The Local Thermal Non-equilibrium (LTNE) and Darcy-Extended Forchheimer (DEF) models were employed to predict fluid and thermal transport in the partially porous SAH channel. In the free flow zone, the turbulence model was utilized. The thermal and thermo-hydraulic performances of SAH were examined concerning several factors, including pore density ( ), Reynolds number ( ), and dimensionless foam height ( ). The results demonstrate that inserting a …
Performance Enhancement Of Pv Panels By A Channel Shaped Heat Exchanger With An Electromechanical Control, Hussein Idan, Hatam Kadhom, Sahar Faraj
Performance Enhancement Of Pv Panels By A Channel Shaped Heat Exchanger With An Electromechanical Control, Hussein Idan, Hatam Kadhom, Sahar Faraj
Engineering and Technology Journal
Photovoltaic panels are considered one of the important practical applications in converting solar energy into electrical energy, but they suffer from the effect of heat associated with solar radiation. Therefore, much research has been done to either harness the heat that comes with it or eliminate it by cooling the panel and boosting its effectiveness. In this work, a cooling box was designed and manufactured locally (the passage design is new) that is attached to the back wall as part of the panel without inserting an absorbent portion between it and the water to cool the panel. The new model …
The Influence Of Micro Channel On The Performance Of Low Concentrator Parabolic Collector Systems With Phase Change Material, Jenan Hamdi, Jalal Jalil, Ahmed Reja
The Influence Of Micro Channel On The Performance Of Low Concentrator Parabolic Collector Systems With Phase Change Material, Jenan Hamdi, Jalal Jalil, Ahmed Reja
Engineering and Technology Journal
Increasing global economic development leads to a continuous increase in energy demand, considering the limited conventional resources of energy as well as the impact on the environment associated with its use. The primary disadvantage of solar energy is that it is only accessible during the day. Thermal energy storage systems can overlook this flaw since they can store energy throughout the day for use at night. This paper presents a new cooling technique for low-concentration parabolic collectors with microchannel and Phase Change Material (PCM). A test model consisting of a parabolic concentrator was designed and fabricated to test the parabolic …
Switching Mechanism Of Dynamic Hybrid Control Multi-Agent System In Manufacturing Environment, Dhuha Ismayyir, Lamyaa Dawood, Mohanned Al-Khafaji
Switching Mechanism Of Dynamic Hybrid Control Multi-Agent System In Manufacturing Environment, Dhuha Ismayyir, Lamyaa Dawood, Mohanned Al-Khafaji
Engineering and Technology Journal
Current expectations demand that manufacturing control systems exhibit enhanced flexibility and agility. Concurrently, using a multi-agent manufacturing system has been regarded as a crucial strategy for addressing the challenges associated with dynamics and unpredictability within the setting of part processing. This paper presents a novel switching mechanism for a hybrid control multi-agent system. The proposed hybrid control model combines the benefits of semi-heterarchical and hierarchical structures, enabling the successful implementation of adaptive control strategies. The aim is to enhance the implementation of a multi-agent control system in a dynamic manufacturing environment. This study checks how well the suggested switching mechanism …
Investigation Of White Layer Thickness, Material Removal Rate, And Tool Wear Rate Of Inconel 718 By Nano-Al2o3-Mixed Electrical Discharge Machining, Dunya Ghulam, Abbas Ibrahim
Investigation Of White Layer Thickness, Material Removal Rate, And Tool Wear Rate Of Inconel 718 By Nano-Al2o3-Mixed Electrical Discharge Machining, Dunya Ghulam, Abbas Ibrahim
Engineering and Technology Journal
Nano powder mixed electrical discharge machining (NPMEDM) is an advanced thermo-physical process. It is used to create complex, precise shapes in hard-to-machine materials, such as nickel-based alloys like Inconel 718, due to their mechanical properties. This study introduces magnetic field assistance to improve the discharge state. Nano aluminum oxide was added to biodegradable soybean oil, serving as the insulating fluid to machine Inconel 718 alloy. The study examined the impact of machining parameters, including current, pulse on time, powder concentration, and magnetic field assistance, on outcomes like white layer thickness, material removal rate, and tool wear rate. Minitab software facilitated …
Production Of Copper Nanoparticles Using Alpha-Amylase Enzyme By An Electrochemical Deposition Method, Neamah Hadi, Mohammad Hafiz, F. Sayyid, Wan Wan Isahak
Production Of Copper Nanoparticles Using Alpha-Amylase Enzyme By An Electrochemical Deposition Method, Neamah Hadi, Mohammad Hafiz, F. Sayyid, Wan Wan Isahak
Engineering and Technology Journal
This study aims to explain the effect of adding the bioactive substance (alpha enzyme) to the electrolyte solution using electrochemical deposition. Through which copper nanoparticles are manufactured, the originality of the research lies in the presence of this addition as a new method in manufacturing nanoparticles in an electrochemical manner, as the alpha-amylase enzyme is extracted from camel saliva, and the product has been diagnosed using (EDX) and scanning electron microscope (FE-SEM) techniques. , Dynamic Light Scattering (DLS) technology, and Zeta potential. The proposed method is an easy, inexpensive, and environmentally friendly method where the alpha enzyme was used as …