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871 articles for “Calculations”
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A Real Time Analysis Of Wireless Power Transfer Coil Design For Electric Vehicle
Abstract: Wireless Power Transmission is a process that uses a vacuum or an atmosphere to transmit electrical energy. It is commonly used in the medical, industrial, and transportation sectors. However, its reliability and quality are often affected by the range and efficiency of the transmission. Electric Vehicles (EVs) have the potential to achieve better efficiency and lower emissions than internal combustion engines. However, their limited range makes them a major barrier …
Published in Recent Trends in Electronics Communication Systems · Vol. 9, Issue 2, 2022 · pp. 19–24 Read article
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A Review of Internet of Things (IOT) Applications for Agricultural Automation
Abstract: In the conventional methodology of agriculture hard labor, lots of effort, and manpower with increases in the size of land use cause a massive amount of worker force to be deployed over various places for different work like giving water, checking plants, seeding, spraying anti- infecting/ pesticides, putting fertilizers and calculating the progress of plant and checking each and every plant for infection and insect attacks and lots and lots …
Published in Recent Trends in Electronics Communication Systems · Vol. 10, Issue 1, 2023 · pp. 1–10 Read article
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Electric vehicle parameters estimation using Web portal
Abstract: The shift to electric vehicles (EVs) requires precise parameter estimate, which is essential for comprehending EV performance and enhancing user experience. The concept and execution of a web portal for evaluating important electric car parameters are presented in this article. Without the need for specific software or knowledge, the portal provides a user-friendly platform for individuals and companies to learn about the characteristics of electric vehicles. The website makes it …
Published in Recent Trends in Electronics Communication Systems · Vol. 10, Issue 3, 2023 · pp. 1–6 Read article
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Study of Effectiveness of Cone Cruciform Vortex Breaker Device in Reducing the Swirl Angle by Modifying the Number of Vanes Using CFD Technique
Abstract: AbstractMany of the large-scale vertical pumps installed in various pumping stations have experienced some sort of vibration, impeller damage due to local cavitation, excessive bearing wear, or loss of pumping efficiency, combinations of which are considered to be caused primarily by undesirable pump approach flow conditions such as vortices, swirl in intake structure, and inappropriate geometrical layout surrounding the bellmouth. Conventional fixes to resolve these problems include vortex breaker devices …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 2, 2018 · pp. 36–50 Read article
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Turbulence Modelling for Estimation of Hydraulic Jump Height
Abstract: AbstractThe simulation plays an important role in understanding the behavior of the flow field that becomes difficult through experimental analysis. The present work focuses on the experimental studies carried out for different discharges ranging from 9.8 lps to 12.5 lps. The gate openings adopted for the study are 0.025 m at a slope of 1:1200 and 0.023 m at a slope of 1:857 and 1:705.8. The simulations were extended to …
Published in Recent Trends in Fluid Mechanics · Vol. 5, Issue 3, 2018 · pp. 8–18 Read article
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A Review on Design of Radiant Cooling Concept with Room Floor and Walls
Abstract: AbstractRadiant cooling is concept in which room temperature is maintained by the radiant effect of pipe which contain cold or hot flowing water, with lower or higher temperature than its surroundings. Heat or cold will be absorbed by the flowing water of pipes. This system uses building floors, walls or ceilings for the installation of radiant pipes. In the research work, it is aimed to design an effective pipe design …
Published in Recent Trends in Fluid Mechanics · Vol. 6, Issue 3, 2019 · pp. 1–6 Read article
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Efficiency Improvements in Domestic LPG Burner
Abstract: AbstractExperiments are conducted on the domestic LPG burner with porous material as preheating and combustion medium. The burner consist of two layers of porous medium. The combustion zone is made up of silicon carbide and metal chips. The stainless-steel balls as preheating zone. The performance of the domestic LPG conventional burner is calculated in terms of heating efficiency for the different thermal inputs(Wattages) and results are compared with that of …
Published in Recent Trends in Fluid Mechanics · Vol. 6, Issue 3, 2019 · pp. 7–11 Read article
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Experimental design and FEA Evaluation of Vibration-based Actuator
Abstract: AbstractCircuit breakers are mostly used in power distribution systems. Adornments of electrical switch extend and supplement its capacity. Essentially, circuit breakers are utilized in circumstance where current stock surpasses characterized cutoff points or short out in this way, which lead to component failure. Mechanical life test, operational dependability test, spillage module activity test, under voltage and shunt discharges test, assistant and caution contacts test are significant in the electrical switch …
Published in Recent Trends in Fluid Mechanics · Vol. 7, Issue 2, 2020 · pp. 33–40 Read article
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Experimentation and two-dimensional fluid flow simulation through external gear pump
Abstract: The investigation aims to perform the experimentation on the existing set up of the gear pump test rig and its simulation. In the first part of study, the different parameters are set and observed. Using these values calculations are performed to get the other experimental results. In the second part, two-dimensional fluid flow simulation was done flowing through the external gear pump and compares its flow rate and thus efficiency …
Published in Recent Trends in Fluid Mechanics · Vol. 7, Issue 3, 2020 · pp. 15–23 Read article
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Experimental Investigation of Double Pipe Heat Exchanger to Improve Thermal Performance, By Using Cerium Oxide (CeO2) Nanofluid
Abstract: Heat exchanger is a device which is very important in every modern industry. Cerium Oxide is used as a nanofluid in this research paper which is made by mixing Cerium Oxide (CeO2) and water. The thermal performance analysis of double pipe heat exchanger is performed by changing the composition of Cerium Oxide nanofluid . At different flow rates (7, 8, 9 litres/min) of nanofluid, flow volume concentration (2%, 3%, 4%) …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 3, 2021 · pp. 24–31 Read article
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Mechanism of Intensive Gas and Fluid Mixture in the Process of Vibroturbulization and Its Technological Applications
Abstract: Previously conducted experimental studies have established that in a certain narrow frequency range and upon reaching a certain value of the amplitude of water oscillations in a sealed vessel with above-water air shell, subjected to vertical vibration, a resonant phenomenon occurs, called “vibroturbulization”, leading to intensive mixing of media of different density. The studies carried out were purely experimental in nature and could not reveal the physicochemical mechanism of occurrence, …
Published in Recent Trends in Fluid Mechanics · Vol. 9, Issue 2, 2022 · pp. 21–34 Read article
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Profound Study on Sensors Used in Precision Agriculture
Abstract: Abstract: The basic objectives of this paper have to increase the profitability of crop production, improve product quality and protect the environment using sensors. Internet of Things has enabled the agriculture crop monitoring easy and efficient. The various types of sensors that can be used to calculate the statistical parameters of an agricultural fields and it gives a stateof-art of wireless sensor and provide solutions applied to precision agriculture (PA). …
Published in Recent Trends in Sensor Research & Technology · Vol. 6, Issue 1, 2019 · pp. 18–21 Read article
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Angle and Distance Measurement System using Ultrasonic Radar
Abstract: AbstractIn today’s world, automation is prevailing everywhere. Attempts are made to automate various processes to avoid errors due to human negligence and increase efficiency. To automate the object detection and distance measurement ultrasonic sensors are used. Cameras installed in security systems fail to work properly in low or very dim light conditions. Such problems can be solved using ultrasonic sensors. This research paper proposes efficient automated systems using ultrasonic sensors …
Published in Recent Trends in Sensor Research & Technology · Vol. 7, Issue 2, 2020 · pp. 1–6 Read article
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Performance Analysis of FLC-NR based Loss Minimisation Algorithm for BLDC Motor
Abstract: Brushless DC motors are increasingly used in industry due to their high power density and ease of control. Efficiency of BLDC motor is reduced due to various losses like copper loss, core loss and switching loss. A fuzzy logic based loss minimisation algorithm is described in this study. Selective harmonic elimination-based pulse-width modulation to optimise both the converter switching losses along with machine core and copper losses is done based …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 51–59 Read article
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A Core Loss Model Based on Finite Element Method for Switched Reluctance Generator Considering Different Control Modes
Abstract: In the present paper, core loss modeling of switched reluctance generator (SRG) is proposed for the first time. Using ANSYS finite element (FE) package, 2D FE transient analysis of SRG is carried out and the stator pole flux waveform is predicted. To determine the flux waveforms in the different parts of the machine, an introduced mathematical flux model is considered and its algorithm is implemented in ANSYS Parametric Design Language …
Published in Trends in Electrical Engineering · Vol. 4, Issue 2, 2014 · pp. 26–33 Read article
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Matlab/Simulink Implementation and Analysis of SVPWM, SPWM and THIPWM: A Modular Approach
Abstract: The SVPWM technique has become more popular today than ever before due to the availability of fast digital systems for implementing this switching scheme. This is the preferred switching scheme for three phase inverters when compared to traditional SPWM. This paper describes a modular implementation and analysis of three popular switching methods employed in voltage source inverters: Space Vector Pulse Width Modulation (SVPWM), Sinusoidal Pulse Width Modulation (SPWM) and Third …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 23–35 Read article
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A New Methodology for Reliability Analysis of Interconnected Power System by using Improved Genetic Algorithm
Abstract: Reliability of interconnected power system is an important parameter in power system analysis. Reliability of power system is measured by reliability indices. Analysis of reliability indices of interconnected power system is usually based on contingency enumeration approach or statistical approach. These methods have some limitations. Moreover, for large systems, these methods are not applicable. In this paper, an improved genetic algorithm based method is described for reliability indices calculation of …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 109–113 Read article
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Finding The Most Sensitive Nodes on IEEE-14 Bus System and Adaptation of Protection Scheme
Abstract: Power system stability is one of the most significant concerns in power system. Providing continuous supply of electric energy to meet the load demand is a complex technical challenge. One of the main causes of voltage instability in a system is the occurrence of reactive power imbalance in the system. Reactive power will be unbalanced when there is a sudden increase or decrease in reactive power demand in the system. …
Published in Trends in Electrical Engineering · Vol. 6, Issue 1, 2016 · pp. 50–56 Read article
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Short-Term Load Demand Forecasting using Chaos Theory and ANFIS
Abstract: In the electrical power sector, forecasting of load demand is an important process for effective planning of future expansion and periodical operations including unit commitments, fuel scheduling, short-term maintenance, security assessments, reducing spinning reserve, reliability analysis etc. Accurate load predictions are also necessary to utilize the electrical energy efficiently and to minimize the conflicts between the demand and supply of electricity. As electric load pattern of a region is very …
Published in Trends in Electrical Engineering · Vol. 6, Issue 2, 2016 · pp. 50–57 Read article
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A Study of Cycloconverter Gating Sequence and Control Strategy for Various Conversion Topology
Abstract: This paper presents the topology of direct conversion of AC-AC with step down frequency operation. Due to the higher order harmonics, AC conversion always faces difficulty and complex calculation, which affects the output response. Precise controlling and harmonics reduction is much easier using frequency control strategy. In this regards cycloconverter has drawn higher attention in terms of frequency conversion. In this paper, an approach for designing of single phase and …
Published in Trends in Electrical Engineering · Vol. 6, Issue 3, 2016 · pp. 67–77 Read article