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Journal articles on the topic 'Electric power production – Computer simulation'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Vera, David, Francisco Jurado, Bárbara de Mena, and Jesús C. Hernández. "A Distributed Generation Hybrid System for Electric Energy Boosting Fueled with Olive Industry Wastes." Energies 12, no. 3 (2019): 500. http://dx.doi.org/10.3390/en12030500.

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This paper presents the theoretical model and the simulation of a cutting edge hybrid power system composed of an externally-fired gas turbine (EFGT) coupled with an organic Rankine cycle (ORC) as a bottoming unit for the maximization of electrical power. The power plant is fed with different biomass sources from olive industry wastes (pruning, dry pomace, stones, leaves and twigs), providing more than 550 kW of electric power and a net electrical efficiency of 26.0%. These wastes were burnt directly at atmospheric pressure in an EFGT, producing 400 kW of electric power and exhaust gases at 30

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Uimonen, Semen, and Matti Lehtonen. "Simulation of Electric Vehicle Charging Stations Load Profiles in Office Buildings Based on Occupancy Data." Energies 13, no. 21 (2020): 5700. http://dx.doi.org/10.3390/en13215700.

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Transportation vehicles are a large contributor of the carbon dioxide emissions to the atmosphere. Electric Vehicles (EVs) are a promising solution to reduce the CO2 emissions which, however, requires the right electric power production mix for the largest impact. The increase in the electric power consumption caused by the EV charging demand could be matched by the growing share of Renewable Energy Sources (RES) in the power production. EVs are becoming a popular sustainable mean of transportation and the expansion of EV units due to the stochastic nature of charging behavior and increasing s

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Guggeri, Andrés, and Martín Draper. "Large Eddy Simuation of an Onshore Wind Farm with the Actuator Line Model Including Wind Turbine’s Control Below and Above Rated Wind Speed." Energies 12, no. 18 (2019): 3508. http://dx.doi.org/10.3390/en12183508.

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As the size of wind turbines increases and their hub heights become higher, which partially explains the vertiginous increase of wind power worldwide in the last decade, the interaction of wind turbines with the atmospheric boundary layer (ABL) and between each other is becoming more complex. There are different approaches to model and compute the aerodynamic loads, and hence the power production, on wind turbines subject to ABL inflow conditions ranging from the classical Blade Element Momentum (BEM) method to Computational Fluid Dynamic (CFD) approaches. Also, modern multi-MW wind turbines h

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Colantoni, Andrea, Mauro Villarini, Vera Marcantonio, Francesco Gallucci, and Massimo Cecchini. "Performance Analysis of a Small-Scale ORC Trigeneration System Powered by the Combustion of Olive Pomace." Energies 12, no. 12 (2019): 2279. http://dx.doi.org/10.3390/en12122279.

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The utilisation of low- and medium-temperature energy allows to reduce the energy shortage and environmental pollution problems because low-grade energy is plentiful in nature and renewable as well. In the past two decades, thanks to its feasibility and reliability, the organic Rankine cycle (ORC) has received great attention. The present work is focused on a small-scale (7.5 kW nominal electric power) combined cooling, heating and power ORC system powered by the combustion of olive pomace obtained as a by-product in the olive oil production process from an olive farm situated in the central p

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Bogdanov, I. I. I., J. A. A. Torres, H. A. A. Akhlaghi, and A. M. M. Kamp. "The Influence of Salt Concentration in Injected Water on Low-Frequency Electrical-Heating-Assisted Bitumen Recovery." SPE Journal 16, no. 03 (2011): 548–58. http://dx.doi.org/10.2118/129909-pa.

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Summary Steam injection is often not a good alternative for oil recovery from shallow bitumen reservoirs. For instance, the thin caprock creates the danger of steam breakthrough. For deeper reservoirs, the heat losses from injection wells may be prohibitive. A technology that may be better suited is oil recovery aided by low-frequency electrical heating of the reservoir. This technology, well known for environmental remedial applications, has been field tried recently, yielding promising results. The process uses electric conductivity of connate water to propagate an alternating current betwee

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Arias, Ignacio, Eduardo Zarza, Loreto Valenzuela, Manuel Pérez-García, José Alfonso Romero Ramos, and Rodrigo Escobar. "Modeling and Hourly Time-Scale Characterization of the Main Energy Parameters of Parabolic-Trough Solar Thermal Power Plants Using a Simplified Quasi-Dynamic Model." Energies 14, no. 1 (2021): 221. http://dx.doi.org/10.3390/en14010221.

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A simplified mathematical model of parabolic-trough solar thermal power plants, which allow one to carry out an energetic characterization of the main thermal parameters that influence the solar field performance, was evaluated through a comparison of simulation results. Two geographical locations were selected to evaluate the mathematical model proposed in this work—one in each hemisphere—and design considerations according with the practical/operational experience were taken. Furthermore, independent simulations were performed using the System Advisor Model (SAM) software, their results were

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González-Acevedo, Hernando, Yecid Muñoz-Maldonado, Adalberto Ospino-Castro, Julian Serrano, Anthony Atencio, and Cristian Jaimes Saavedra. "Design and performance evaluation of a solar tracking panel of single axis in Colombia." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 4 (2021): 2889. http://dx.doi.org/10.11591/ijece.v11i4.pp2889-2898.

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This paper presents the mechanical design of a single axis solar tracking system, as well as the electronic design of a system that to record in real time the electric power delivered by the solar tracker and to evaluate its performance. The interface was developed in Labview and it compares the power supplied by the tracker with the power supplied by static solar panel of the same characteristics. The performance is initially simulated using Pv-Syst software, and later validated with the data obtained by the interface. As a result, the use of the solar tracker increases the power delivered by

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Qawaqzeh, Mohamed Zaidan, Oleksandr Miroshnyk, Taras Shchur, et al. "Research of Emergency Modes of Wind Power Plants Using Computer Simulation." Energies 14, no. 16 (2021): 4780. http://dx.doi.org/10.3390/en14164780.

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The aim of this study is to investigate changes in the wind power plant energy production parameters under the conditions of sudden wind changes and voltage drop. To achieve these goals, a simulation of operation of wind power plants was performed. Twelve wind turbines with variable rotational speed equipped with a Fuhrländer FL 2500/104 asynchronous double-fed induction generator (DFIG) were used, each with an installed capacity of 2.5 MW. A general scheme of a wind power plant has been developed using a modular-trunk power distribution scheme. The system consists of wind power modules and a

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Trota, Ferreira, Gomes, Cabral, and Kallberg. "Power Production Estimates from Geothermal Resources by Means of Small-Size Compact Climeon Heat Power Converters: Case Studies from Portugal (Sete Cidades, Azores and Longroiva Spa, Mainland)." Energies 12, no. 14 (2019): 2838. http://dx.doi.org/10.3390/en12142838.

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Renewable forms of energy are increasingly penetrating the electricity market, particularly, geothermal energy. A wide range of resource temperatures and fluid quality are converted mostly using traditional binary power plants and, recently, using Climeon modular units. Portuguese natural geothermal resources are far from precise estimations. Despite the parameter uncertainties, electric power resource estimations of two natural geothermal reservoirs are presented: a volcanic sourced heated high-enthalpy geothermal reservoir in Sete Cidades, São Miguel Island, Azores; and a low-enthalpy geothe

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Boretti, Albert, Stefania Castelletto, and Sarim Al-Zubaidy. "Concentrating solar power tower technology: present status and outlook." Nonlinear Engineering 8, no. 1 (2019): 10–31. http://dx.doi.org/10.1515/nleng-2017-0171.

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Abstract The paper examines design and operating data of current concentrated solar power (CSP) solar tower (ST) plants. The study includes CSP with or without boost by combustion of natural gas (NG), and with or without thermal energy storage (TES). Latest, actual specific costs per installed capacity are high, 6,085 $/kW for Ivanpah Solar Electric Generating System (ISEGS) with no TES, and 9,227 $/kW for Crescent Dunes with TES. Actual production of electricity is low and less than the expected. Actual capacity factors are 22% for ISEGS, despite combustion of a significant amount of NG excee

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Rauh, Andreas, Wiebke Frenkel, and Julia Kersten. "Kalman Filter-Based Online Identification of the Electric Power Characteristic of Solid Oxide Fuel Cells Aiming at Maximum Power Point Tracking." Algorithms 13, no. 3 (2020): 58. http://dx.doi.org/10.3390/a13030058.

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High-temperature fuel cells are one of the devices currently investigated for an integration into distributed power supply grids. Such distributed grids aim at the simultaneous production of thermal energy and electricity. To maximize the efficiency of fuel cell systems, it is reasonable to track the point of maximum electric power production and to operate the system in close vicinity to this point. However, variations of gas mass flows, especially the concentration of hydrogen contained in the anode gas, as well as variations of the internal temperature distribution in the fuel cell stack mo

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Ouyang, Bin, Zhichang Yuan, Chao Lu, Lu Qu, and Dongdong Li. "Research on Multi-Time Scale Optimization Strategy of Cold-Thermal-Electric Integrated Energy System Considering Feasible Interval of System Load Rate." Energies 12, no. 17 (2019): 3233. http://dx.doi.org/10.3390/en12173233.

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The integrated energy system coupling multi-type energy production terminal to realize multi-energy complementarity and energy ladder utilization is of great significance to alleviate the existing energy production crisis and reduce environmental pollution. In this paper, the topology of the cold-thermal-electricity integrated energy system is built, and the decoupling method is adopted to analyze the feasible interval of load rate under the strong coupling condition, so as to ensure the “source-load” power balance of the system. Establishing a multi-objective optimization function with the lo

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Ganiev, Rishat. "Two-way conductivity converters in the technology of tire cord rubberization." E3S Web of Conferences 220 (2020): 01069. http://dx.doi.org/10.1051/e3sconf/202022001069.

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The article deals with the problems of increasing the multi-engine electric drive energy efficiency on the example of the cropped cord production line in manufacture of tires. There are requirements for line electric drives that can have an impact both each other and the overall power grid in the mode of technological braking, as well as the requirements for the availability of protection functions and mutual coordination with the mains supply. To solve this problem, options have been developed to build reversible frequency converters on fully controlled (locked) keys as part of frequency-regu

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Grebski, Michalene, and Anna Maryniak. "Benefits of Installing a Photovoltaic Power-Generation System for a Warehouse Facility." New Trends in Production Engineering 3, no. 1 (2020): 332–46. http://dx.doi.org/10.2478/ntpe-2020-0028.

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AbstractSustainability and eco-friendliness of the chain of supply is a subject of interest among many researchers. New eco-friendly solutions are being implemented in production, storage, and transportation of the entire chain of supply. This study focuses on pro-environmental solutions related to warehouse management. The publication describes a project of installing a solar photovoltaic (PV) system to generate electric power at the H&W Warehouse in New Brunswick, New Jersey. The purpose of this publication is to demonstrate the financial and environmental benefits of using sustainable f

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Grabchak, E. P., E. L. Loginov, and V. U. Chinaliev. "Digital transformation of Russia’s thermal power industry management system for optimization of consumers’ expenditures determined by tariffs and prices." Safety and Reliability of Power Industry 13, no. 2 (2020): 84–90. http://dx.doi.org/10.24223/1999-5555-2020-13-2-84-90.

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The development and implementation of a strategy for organizational reconfiguration of a digital heat and power super system to streamline the processes of providing structured technological zones with heat makes the basis for creating a coordinated system for optimizing the tariff and price load on heat and electricity consumers in the Russian economy. Providing the industry with a mechanism for regulating the processes of rendering heat energy services based on the transition to the system of Unified Heat-Supply Organizations (ETOs) and ensuring a return on price trend investment in the heat

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Qarinur, Muhammad, Sho Ogata, Naoki Kinoshita, and Hideaki Yasuhara. "Predictions of Rock Temperature Evolution at the Lahendong Geothermal Field by Coupled Numerical Model with Discrete Fracture Model Scheme." Energies 13, no. 12 (2020): 3282. http://dx.doi.org/10.3390/en13123282.

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The comprehensive exploitation of geothermal fields has an impact on the productivity of the reservoirs. To realize sustainable steam production, changes in the rock temperature need to be predicted and controlled. A coupled thermo-hydro-mechanical (THM) model employing COMSOL Multiphysics was proposed to study the characteristics of heat transfer, fluid flow, and solid deformation at the Lahendong geothermal field, in North Sulawesi, Indonesia. The numerical results were compared with analytical and measured data in order to validate the numerical simulation. Based on the results, the predict

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17

de Santoli, Livio, Gianluigi Lo Basso, Davide Astiaso Garcia, Giuseppe Piras, and Giulia Spiridigliozzi. "Dynamic Simulation Model of Trans-Critical Carbon Dioxide Heat Pump Application for Boosting Low Temperature Distribution Networks in Dwellings." Energies 12, no. 3 (2019): 484. http://dx.doi.org/10.3390/en12030484.

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This research investigates the role of new hybrid energy system applications for developing a new plant refurbishment strategy to deploy small scale smart energy systems. This work deals with a dynamic simulation of trans-critical carbon dioxide heat pump application for boosting low temperature distribution networks to share heat for dwellings. Heat pumps provide high temperature heat to use the traditional emission systems. The new plant layout consists of an air source heat pump, four trans-critical carbon dioxide heat pumps (CO2-HPs), photovoltaic arrays, and a combined heat and power (CHP

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Fambri, Gabriele, Marco Badami, Dimosthenis Tsagkrasoulis, Vasiliki Katsiki, Georgios Giannakis, and Antonis Papanikolaou. "Demand Flexibility Enabled by Virtual Energy Storage to Improve Renewable Energy Penetration." Energies 13, no. 19 (2020): 5128. http://dx.doi.org/10.3390/en13195128.

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The increasing resort to renewable energy distributed generation, which is needed to mitigate anthropogenic CO2 emissions, leads to challenges concerning the proper operation of electric distribution systems. As a result of the intrinsic nature of Renewable Energy Sources (RESs), this generation shows a high volatility and a low predictability that make the balancing of energy production and consumption difficult. At the same time, the electrification of new energy-intensive sectors (such as heating) is expected. This complex scenario paves the way for new sources of flexibility that will have

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Ouramdane, Oussama, Elhoussin Elbouchikhi, Yassine Amirat, and Ehsan Sedgh Gooya. "Optimal Sizing and Energy Management of Microgrids with Vehicle-to-Grid Technology: A Critical Review and Future Trends." Energies 14, no. 14 (2021): 4166. http://dx.doi.org/10.3390/en14144166.

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The topic of microgrids (MGs) is a fast-growing and very promising field of research in terms of energy production quality, pollution reduction and sustainable development. Moreover, MGs are, above all, designed to considerably improve the autonomy, sustainability, and reliability of future electrical distribution grid. At the same time, aspects of MGs energy management, taking into consideration distribution generation systems, energy storage devices, electric vehicles, and consumption components have been widely investigated. Besides, grid architectures including DC, AC, or hybrid power gene

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Renno, Carlo, Fabio Petito, Diana D’Agostino, and Francesco Minichiello. "Modeling of a CPV/T-ORC Combined System Adopted for an Industrial User." Energies 13, no. 13 (2020): 3476. http://dx.doi.org/10.3390/en13133476.

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The increasing energy demand encourages the use of photovoltaic solar systems coupled to organic rankine cycle (ORC) systems. This paper presents a model of an ORC system coupled with a concentrating photovoltaic and thermal (CPV/T) system. The CPV/T-ORC combined system, described and modeled in this paper, is sized to match the electrical load of a medium industrial user located in the South of Italy. A line-focus configuration of the CPV/T system, constituted by 16 modules with 500 triple-junction cells, is adopted. Different simulations have been realized evaluating also the direct normal i

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Strebkov, Dmitriy S., Yuriy Kh Shogenov, and Nikolay Yu Bobovnikov. "Improving the Efficiency of Solar Power Plants." Engineering Technologies and Systems 30, no. 3 (2020): 480–97. http://dx.doi.org/10.15507/2658-4123.030.202003.480-497.

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Introduction. An urgent scientific problem is to increase the efficiency of using solar energy in solar power plants (SES). The purpose of the article is to study methods for increasing the efficiency of solar power plants. Materials and Methods. Solar power plants based on modules with a two-sided working surface are considered. Most modern solar power plants use solar modules. The reflection of solar radiation from the earth’s surface provides an increase in the production of electrical energy by 20% compared with modules with a working surface on one side. It is possible to increase the eff

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Sun, Liang, Na Zhang, Ning Li, Zhuo-ran Song, and Wei-dong Li. "A Gini Coefficient-Based Impartial and Open Dispatching Model." Energies 13, no. 12 (2020): 3146. http://dx.doi.org/10.3390/en13123146.

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According to the existing widely applied impartial and open dispatching models, operation fairness was mainly emphasized, which severely restricted the optimization space of the economy of the overall system operation and affected the economic benefits. To solve the above problems, a scheduling model based on Gini coefficient under impartial and open dispatching principle is proposed in this paper, which can consider the balance between the fairness and economy of system operation. In the proposed model, the Gini coefficient is introduced to describe the fairness of electric energy completion

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Morais, Hugo, Tiago Pinto, and Zita Vale. "Adjacent Markets Influence Over Electricity Trading—Iberian Benchmark Study." Energies 13, no. 11 (2020): 2808. http://dx.doi.org/10.3390/en13112808.

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This paper presents a study on the impact of adjacent markets on the electricity market, realizing the advantages of acting in several different markets. The increased use of renewable primary sources to generate electricity and new usages of electricity such as electric mobility are contributing to a better and more rational way of living. The investment in renewable technologies for the distributed generation has been creating new opportunities for owners of such technologies. Besides the selling of electricity and related services (ancillary services) in energy markets, players can particip

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Al Wahedi, Abdulla, and Yusuf Bicer. "A Case Study in Qatar for Optimal Energy Management of an Autonomous Electric Vehicle Fast Charging Station with Multiple Renewable Energy and Storage Systems." Energies 13, no. 19 (2020): 5095. http://dx.doi.org/10.3390/en13195095.

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E-Mobility deployment has attained increased interest during recent years in various countries all over the world. This interest has focused mainly on reducing the reliance on fossil fuel-based means of transportation and decreasing the harmful emissions produced from this sector. To secure the electricity required to satisfy Electric Vehicles’ (EVs’) charging needs without expanding or overloading the existing electricity infrastructure, stand-alone charging stations powered by renewable sources are considered as a reasonable solution. This paper investigates the simulation of the optimal ene

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Dunkelberg, Heiko, Maximilian Sondermann, Henning Meschede, and Jens Hesselbach. "Assessment of Flexibilisation Potential by Changing Energy Sources Using Monte Carlo Simulation." Energies 12, no. 4 (2019): 711. http://dx.doi.org/10.3390/en12040711.

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In the fight against anthropogenic climate change, the benefit of the integration of fluctuating renewable energies (wind and photovoltaics) into the electricity grid is a widely proved concept. At the same time, a fluctuating and decentralised supply of energy, especially at lower voltage levels, leads to a local discrepancy in the power balance between generation and consumption. A possible solution in connection with demand side management is the grid-oriented flexibilisation of energy demand. The present study shows how the use of an innovative hybrid-redundant high-temperature heat system

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Ortega, Arturo, Joseph Praful Tomy, Jonathan Shek, Stephane Paboeuf, and David Ingram. "An Inter-Comparison of Dynamic, Fully Coupled, Electro-Mechanical, Models of Tidal Turbines." Energies 13, no. 20 (2020): 5389. http://dx.doi.org/10.3390/en13205389.

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Production of electricity using hydrokinetic tidal turbines has many challenges that must be overcome to ensure reliable, economic and practical solutions. Kinetic energy from flowing water is converted to electricity by a system comprising diverse mechanical and electrical components from the rotor blades up to the electricity grid. To date these have often been modelled using simulations of independent systems, lacking bi-directional, real-time, coupling. This approach leads to critical effects being missed. Turbulence in the flow, results in large velocity fluctuations around the blades, ca

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Lee, Yongsik, Hyunchul Lee, Jaehyeon Gim, Inyong Seo, and Guenjoon Lee. "Technical Measures to Mitigate Load Fluctuation for Large-Scale Customers to Improve Power System Energy Efficiency." Energies 13, no. 18 (2020): 4812. http://dx.doi.org/10.3390/en13184812.

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Industrial equipment such as electric arc furnaces and steel mills are often associated with rapid and high load disturbances, so their power systems require additional control equipment to limit the frequency. However, proper ancillary service fees are not paid in these cases with extreme and variable load demands. The frequency regulation reserve equipment adds to power generation costs. Therefore, variable power generation loads lead to increases in the cost of energy production. We propose a load frequency control method that is applied on the customer end instead of the power supply end t

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Antonio Barrozo Budes, Farid, Guillermo Valencia Ochoa, Luis Guillermo Obregon, Adriana Arango-Manrique, and José Ricardo Núñez Álvarez. "Energy, Economic, and Environmental Evaluation of a Proposed Solar-Wind Power On-grid System Using HOMER Pro®: A Case Study in Colombia." Energies 13, no. 7 (2020): 1662. http://dx.doi.org/10.3390/en13071662.

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The electrical sector in the Caribbean region of Colombia is currently facing problems that affect its reliability. Many thermo-electric plants are required to fill the gap and ensure energy supply. This paper thus proposes a hybrid renewable energy generation plant that could supply a percentage of the total energy demand and reduce the environmental impact of conventional energy generation. The hybrid plant works with a photovoltaic (PV) system and wind turbine systems, connected in parallel with the grid to supply a renewable fraction of the total energy demand. The investigation was conduc

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De Cilladi, Lorenzo, Thomas Corradino, Gian-Franco Dalla Betta, Coralie Neubüser, and Lucio Pancheri. "Fully Depleted Monolithic Active Microstrip Sensors: TCAD Simulation Study of an Innovative Design Concept." Sensors 21, no. 6 (2021): 1990. http://dx.doi.org/10.3390/s21061990.

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The paper presents the simulation studies of 10 μμm pitch microstrips on a fully depleted monolithic active CMOS technology and describes their potential to provide a new and cost-effective solution for particle tracking and timing applications. The Fully Depleted Monolithic Active Microstrip Sensors (FD-MAMS) described in this work, which are developed within the framework of the ARCADIA project, are compliant with commercial CMOS fabrication processes. A set of Technology Computer-Aided Design (TCAD) parametric simulations was performed in the perspective of an upcoming engineering productio

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Nikolaou, Triantafyllia, George S. Stavrakakis, and Konstantinos Tsamoudalis. "Modeling and Optimal Dimensioning of a Pumped Hydro Energy Storage System for the Exploitation of the Rejected Wind Energy in the Non-Interconnected Electrical Power System of the Crete Island, Greece." Energies 13, no. 11 (2020): 2705. http://dx.doi.org/10.3390/en13112705.

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The aim of the present paper is to investigate the use of the site “Potamon” Dam in the Prefecture of Rethymnon, Crete island, Greece, as a “virtual” renewable electricity supply of a pumped storage plant (PSP) in order to save and exploit the maximum possible part of the rejected wind energy of the autonomous power system of the Crete island. Taking into account the annual time series of the rejected power of the Crete power grid, the present research work targets the optimal configuration of the proposed PSP power station, including the sizing of its individual components as well as the dete

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Cheekatamarla, Praveen, and Ahmad Abu-Heiba. "A Comprehensive Review and Qualitative Analysis of Micro-Combined Heat and Power Modeling Approaches." Energies 13, no. 14 (2020): 3581. http://dx.doi.org/10.3390/en13143581.

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Concurrent production of electrical and thermal energy from a Combined Heat and Power (CHP) device is an attractive tool to address the growing energy needs of the planet. Micro CHP (µCHP) systems can reduce a building’s primary energy consumption, reduce carbon footprint, and enhance resiliency. Modeling of the µCHP helps understand the system from multiple perspectives and helps discover errors earlier, improves impact analysis and simulation of system solutions for ease of integration with the building. Consequently, there is a need for analysis of the impact of µCHP modeling approach on it

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Rodrigues, Rafael V., and Luiz A. Rossi. "Performance of small wind turbines: simulation of electricity supply to loads connected to the public or isolated grid." Engenharia Agrícola 36, no. 2 (2016): 281–90. http://dx.doi.org/10.1590/1809-4430-eng.agric.v36n2p281-290/2016.

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ABSTRACT The successful in the implementation of wind turbines depends on several factors, including: the wind resource at the installation site, the equipment used, project acquisition and operational costs. In this paper, the production of electricity from two small wind turbines was compared through simulation using the computer software HOMER - a national model of 6kW and an imported one of 5kW. The wind resources in three different cities were considered: Campinas (SP/BR), Cubatão (São Paulo/BR) and Roscoe (Texas/ USA). A wind power system connected to the grid and a wind isolated system

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de Souza Henriques, Rafaella, Rodney Rezende Saldanha, and Lineker Max Goulart Coelho. "An Air Pollutant Emission Analysis of Brazilian Electricity Production Projections and Other Countries." Energies 12, no. 15 (2019): 2851. http://dx.doi.org/10.3390/en12152851.

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In the face of the population’s growing awareness about environmental degradation, air pollutant emissions from electricity production become a very relevant issue. Therefore, the present work aims to evaluate the greenhouse gases (GHG), NOx and SO2 emissions in the Brazilian electricity production, using the expected capacity expansion from Ten-Year Energy Expansion Plan-2027, the current installed capacity of power generation and the electrical load factor. This study was based on data provided by official institutions that are responsible for the electricity sector as well as academic studi

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Wang, Manran, Li Guo, Jinhao Chen, Bingqi Lv, and Yang Yang. "Superresolution Reconstruction of Electrical Equipment Incipient Fault." Journal of Control Science and Engineering 2018 (August 7, 2018): 1–11. http://dx.doi.org/10.1155/2018/1630402.

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With the rapid development of industry and technology, the electrical power system becomes more complex and the electrical equipment becomes more diverse. Defective equipment is often the cause of industrial accidents and electrical injuries, which can result in serious injuries, such as electrocution, burns, and electrical shocks. In some cases, electrical equipment fault may result in death. However, in some special situation, some fault is very small even invisible, such as equipment aging, holes, and cracks, so the detection of these incipient faults is difficult or even impossible. These

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Rogalev, Andrey, Nikolay Rogalev, Vladimir Kindra, Olga Zlyvko, and Andrey Vegera. "A Study of Low-Potential Heat Utilization Methods for Oxy-Fuel Combustion Power Cycles." Energies 14, no. 12 (2021): 3364. http://dx.doi.org/10.3390/en14123364.

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The world community is worried about the effects of global warming. A few agreements on the reduction of CO2 emissions have been signed recently. A large part of these emissions is produced by the power production industry. Soon, the requirements for thermal power plant ecology and efficiency performance may become significantly higher. Thus, the contemporary problem is the development of highly efficient power production facilities with low toxic and greenhouse gas emission. An efficient way to reduce CO2 emissions into the atmosphere, which implies maintaining economic growth, is the creatio

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Jin, Ruiyang, Jie Song, Jie Liu, Wei Li, and Chao Lu. "Location and Capacity Optimization of Distributed Energy Storage System in Peak-Shaving." Energies 13, no. 3 (2020): 513. http://dx.doi.org/10.3390/en13030513.

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The peak-valley characteristic of electrical load brings high cost in power supply coming from the adjustment of generation to maintain the balance between production and demand. Distributed energy storage system (DESS) technology can deal with the challenge very well. However, the number of devices for DESS is much larger than central energy storage system (CESS), which brings challenges for solving the problem of location selection and capacity allocation with large scale. We formulate the charging/discharging model of DESS and economic analysis. Then, we propose a simulation optimization me

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Alhrshy, Laurence. "Implementation of Variable Blade Inertia in OpenFAST to Integrate a Flywheel System in the Rotor of a Wind Turbine." Energies 14, no. 10 (2021): 2783. http://dx.doi.org/10.3390/en14102783.

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In this paper, the integration of the dynamic behavior of the flywheel system into the load simulation tool OpenFAST is presented. The flywheel system enables a wind turbine to vary the inertia of its rotor blades to control the power production and, most importantly, to affect the vibratory behavior of wind turbine components. Consequently, in order to simulate the behavior of a wind turbine with a flywheel system in its rotor, the variable blade characteristics need to be considered in the load simulation tool. Currently, computer-aided engineering tools for simulating the mechanical loads o

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Sathyan, Sabin, Ugur Aydin, and Anouar Belahcen. "Acoustic Noise Computation of Electrical Motors Using the Boundary Element Method." Energies 13, no. 1 (2020): 245. http://dx.doi.org/10.3390/en13010245.

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This paper presents a numerical method and computational results for acoustic noise of electromagnetic origin generated by an induction motor. The computation of noise incorporates three levels of numerical calculation steps, combining both the finite element method and boundary element method. The role of magnetic forces in the production of acoustic noise is established in the paper by showing the magneto-mechanical and vibro-acoustic pathway of energy. The conversion of electrical energy into acoustic energy in an electrical motor through electromagnetic, mechanical, or acoustic platforms i

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Ikken, Naima, Nour-Eddine Tariba, Abdelhadi Bouknadel, Ahmed Haddou, Hafsa El Omari, and Hamid El Omari. "A fuzzy rule based approach for islanding detection in grid connected inverter systems." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 6 (2021): 4759. http://dx.doi.org/10.11591/ijece.v11i6.pp4759-4766.

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<span lang="EN-US">Islanding is when an area of the electrical distribution system is isolated from the electrical system while being powered by distributed generators. An important condition for the interconnection of power plants and distribution systems is the ability of the power plant to detect islands. The presented and proposed method is a combination of best active sandia frequency shift (SFS) method with the intelligent fuzzy logic controller, which has been tested in distributed production using the island detection function. And the choice to improve the method by fuzzy logic

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Aminou Moussavou, AA, AK Raji, and M. Adonis. "Controllable and flexible energy production in a water-based photovoltaic/thermal system." International Journal of Engineering & Technology 8, no. 4 (2019): 473. http://dx.doi.org/10.14419/ijet.v8i4.29485.

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A combined solar photovoltaic and thermal (PV/T) system is not just a product that makes our life easier, nor is it a luxury. In the future economics will make the use of the PV/T system essential. The purpose of this to improve the energy balance in a PV/T system, by control-ling the thermal energy (useful heat) production for the domestic hot water as well as the electrical production. Simulation and analysis of a simplified model of the PV/T system for cooling the PV cell and heating the working fluid inside of the absorber pipe attached at the back of the PV cell were implemented in MATLAB

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Bui, Truong M. N., Truong Q. Dinh, James Marco, and Chris Watts. "Development and Real-Time Performance Evaluation of Energy Management Strategy for a Dynamic Positioning Hybrid Electric Marine Vessel." Electronics 10, no. 11 (2021): 1280. http://dx.doi.org/10.3390/electronics10111280.

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Hybridisation of energy sources in marine vessels has been recognized as one of the feasible solutions to improve fuel economy and achieve global emission reduction targets in the maritime sector. However, the overall performance of a hybrid vessel system is strongly dependent on the efficiency of the energy management system (EMS) that regulates the power-flow amongst the propulsion sources and the energy storage system (ESS). This study develops a simple but production-feasible and efficient EMS for a dynamic positioning (DP) hybrid electric marine vessel (HEMV) and real-time experimental ev

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Ebhota*, Williams S,, and Pavel Y. Tabakov. "Simplified and Precise Design of Crossflow Turbine Power Transmission Components." International Journal of Engineering and Advanced Technology 10, no. 3 (2021): 227–32. http://dx.doi.org/10.35940/ijeat.c2136.0210321.

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Despite the merits of small hydropower (SHP), coupled with the perennial inadequate and unreliable electricity supply in SSA, the huge SHP potential in the region is hugely untapped. This is largely attributed to the lack of adequate technical components for the development of SHP turbines, which are: technical personnel, and production facilities in the region. The hydraulic power possessed by flowing water in SHP resources can be harnessed and transformed into usable electrical energy via the deployment of a hydro turbine plant. Commonly used hydro turbines include crossflow (CFT), Pelton, T

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Fanney, A. Hunter, Mark W. Davis, Brian P. Dougherty, David L. King, William E. Boyson, and Jay A. Kratochvil. "Comparison of Photovoltaic Module Performance Measurements." Journal of Solar Energy Engineering 128, no. 2 (2006): 152–59. http://dx.doi.org/10.1115/1.2192559.

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Computer simulation tools used to predict the energy production of photovoltaic systems are needed in order to make informed economic decisions. These tools require input parameters that characterize module performance under various operational and environmental conditions. Depending upon the complexity of the simulation model, the required input parameters can vary from the limited information found on labels affixed to photovoltaic modules to an extensive set of parameters. The required input parameters are normally obtained indoors using a solar simulator or flash tester, or measured outdoo

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Aguilar, Jonathan, Ainhoa Rubio-Clemente, Laura Velasquez, and Edwin Chica. "Design and Optimization of a Multi-Element Hydrofoil for a Horizontal-Axis Hydrokinetic Turbine." Energies 12, no. 24 (2019): 4679. http://dx.doi.org/10.3390/en12244679.

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Hydrokinetic turbines are devices that harness the power from moving water of rivers, canals, and artificial currents without the construction of a dam. The design optimization of the rotor is the most important stage to maximize the power production. The rotor is designed to convert the kinetic energy of the water current into mechanical rotation energy, which is subsequently converted into electrical energy by an electric generator. The rotor blades are critical components that have a large impact on the performance of the turbine. These elements are designed from traditional hydrodynamic pr

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Figaj, Rafał, Maciej Żołądek, and Wojciech Goryl. "Dynamic Simulation and Energy Economic Analysis of a Household Hybrid Ground-Solar-Wind System Using TRNSYS Software." Energies 13, no. 14 (2020): 3523. http://dx.doi.org/10.3390/en13143523.

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The adoption of micro-scale renewable energy systems in the residential sector has started to be increasingly diffused in recent years. Among the possible systems, ground heat exchangers coupled with reversible heat pumps are an interesting solution for providing space heating and cooling to households. In this context, a possible hybridization of this technology with other renewable sources may lead to significant benefits in terms of energy performance and reduction of the dependency on conventional energy sources. However, the investigation of hybrid systems is not frequently addressed in t

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Korendiy, Vitaliy, Roman Zinko, Vasyl Lozynskyy, and Oleksandr Havrylchenko. "Design and operational peculiarities of four-degree-of-freedom double-legged robot with pneumatic drive and turning mechanism." Ukrainian journal of mechanical engineering and materials science 6, no. 1 (2020): 54–71. http://dx.doi.org/10.23939/ujmems2020.01.054.

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Problem statement. Mobile robots are of significant interest among scientists and designers during the last several decades. One of the prospective drives of such robots is based on pneumatically operated walking (stepping) system with no use of electric, heat, magnetic or other types of energy. This allows the use of pneumatically-driven robots in the cases when the use of other energy sources is prohibited (e.g., in some gaseous or fluid mediums). At the same time, the walking (stepping) type of moving increases the manoeuvrability and cross-country capability of the mobile robot, and decrea

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Al_Dujaili, Mohammed Jawad, and Aws Majeed Al_Awadi. "Chirplet signal design by FPGA." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 3 (2021): 2120. http://dx.doi.org/10.11591/ijece.v11i3.pp2120-2127.

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The ever-expanding growth of the electronics and communications industries present new challenges for researchers. One of these challenges is the generation of the required bandwidth signal over a specific time frame that is used in a variety of contexts, particularly radar systems. To improve the range resolution in the radar along with better SNR, it is necessary to reduce the signal bandwidth and increase the peak power. There are some restrictions for narrowband signals like power limitation, pulse shaping, and the production of unwanted harmonics. So as a solution pulse compression techni

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Guenounou, Abderrezak, Ali Malek, Michel Aillerie, and Achour Mahrane. "LabVIEW Interface for Controlling a Test Bench for Photovoltaic Modules and Extraction of Various Parameters." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 3 (2015): 498. http://dx.doi.org/10.11591/ijpeds.v6.i3.pp498-508.

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Numerical simulation using mathematical models that take into account physical phenomena governing the operation of solar cells is a powerful tool to predict the energy production of photovoltaic modules prior to installation in a given site. These models require some parameters that manufacturers do not generally give. In addition, the availability of a tool for the control and the monitoring of performances of PV modules is of great importance for researchers, manufacturers and distributors of PV solutions. In this paper, a test and characterization protocol of PV modules is presented. It co

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Bouramdane, Ayat-allah, Alexis Tantet, and Philippe Drobinski. "Adequacy of Renewable Energy Mixes with Concentrated Solar Power and Photovoltaic in Morocco: Impact of Thermal Storage and Cost." Energies 13, no. 19 (2020): 5087. http://dx.doi.org/10.3390/en13195087.

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In this paper, we analyze the sensitivity of the optimal mixes to cost and variability associated with solar technologies and examine the role of Thermal Energy Storage (TES) combined to Concentrated Solar Power (CSP) together with time-space complementarity in reducing the adequacy risk—imposed by variable Renewable Energies (RE)—on the Moroccan electricity system. To do that, we model the optimal recommissioning of RE mixes including Photovoltaic (PV), wind energy and CSP without or with increasing levels of TES. Our objective is to maximize the RE production at a given cost, but also to lim

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Abdelwahed, Touati, Majdoul Radouane, Aboulfatah Mohamed, and Rabbah Nabila. "Active filtering capability based on the RSC control of WECS equipped with a DFIG." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 2 (2021): 760. http://dx.doi.org/10.11591/ijeecs.v23.i2.pp760-771.

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<p>The increasing integration of decentralized production from renewable energies on the electricity grids should contribute to improving the stability and quality of the energy produced. The main objective of this work is to prove how renewable energy sources can improve the quality of electrical energy in the grid. In particular, controlled by the oriented flux technique, a double - feed induction generator DFIG driven by a wind turbine is together used to produce active power to the electrical network and to compensate the currentharmonics generated by a non - linear load, which leads

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