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11,847 Results Found

  • Article
  • Open Access
37 Citations
3,330 Views
15 Pages

Sustainable Governance, Energy Security, and Energy Losses of Europe in Turbulent Times

  • Tomasz Wołowiec,
  • Svitlana Kolosok,
  • Tetiana Vasylieva,
  • Artem Artyukhov,
  • Łukasz Skowron,
  • Oleksandr Dluhopolskyi and
  • Larysa Sergiienko

23 November 2022

The article aims to identify the relationship between energy efficiency and particular indicators of energy losses in Europe. The results of the bibliographic analysis showed a knowledge gap in energy losses in Europe regarding the new challenges of...

  • Article
  • Open Access
55 Citations
7,400 Views
23 Pages

Impact of Energy Losses Due to Failures on Photovoltaic Plant Energy Balance

  • Isidoro Lillo-Bravo,
  • Pablo González-Martínez,
  • Miguel Larrañeta and
  • José Guasumba-Codena

3 February 2018

Photovoltaic (PV) plant failures have a significant influence on PV plant security, reliability, and energy balance. Energy losses produced by a PV plant are due to two large causes: failures and inefficiencies. Knowing the relative influence of ener...

  • Article
  • Open Access
2,672 Views
15 Pages

15 July 2024

This paper focuses on determining the friction energy loss in the mechanism of a mechanical crank press. After defining the crank press mechanism and how it works, we describe the energy balance of a technological operation—forming. Four distin...

  • Article
  • Open Access
31 Citations
8,518 Views
22 Pages

27 August 2020

Aerodynamic drag and bearing friction are the main sources of standby losses in the flywheel rotor part of a flywheel energy storage system (FESS). Although these losses are typically small in a well-designed system, the energy losses can become sign...

  • Article
  • Open Access
2 Citations
5,142 Views
15 Pages

18 January 2019

For an energy-harvesting wireless transmission system, considering that a transmitter which can harvest energy from nature has two kinds of extra energy consumption, circuit consumption and storage losses, the optimization models are set up in this p...

  • Article
  • Open Access
10 Citations
1,371 Views
17 Pages

Smart Management of Energy Losses in Distribution Networks Using Deep Neural Networks

  • Ihor Blinov,
  • Virginijus Radziukynas,
  • Pavlo Shymaniuk,
  • Artur Dyczko,
  • Kinga Stecuła,
  • Viktoriia Sychova,
  • Volodymyr Miroshnyk and
  • Roman Dychkovskyi

16 June 2025

This research presents an advanced methodology for smart management of energy losses in electrical distribution networks by leveraging deep neural network architectures. The primary objective is to enhance the accuracy of short-term forecasting for n...

  • Article
  • Open Access
1 Citations
1,283 Views
18 Pages

27 November 2024

Due to the dynamic development of energy generation in photovoltaic installations, a reliable assessment of their impact on the level of energy losses in distribution networks is needed. For energy companies managing network resources, this issue has...

  • Article
  • Open Access
3 Citations
1,669 Views
22 Pages

27 July 2023

The development of power electronics, including high-efficiency power supply systems, changes the structure of perception of the types of electrical energy receivers connected to the power grid at each supply voltage level. In the past, the dominant...

  • Article
  • Open Access
9 Citations
1,898 Views
11 Pages

10 January 2023

The giant magnetostrictive transducer (GMT) can be widely used in ultra-precision machining in precision-fluid-control fields. The temperature stability of GMT is critical for the reliable generation of output characteristics. This study presents a m...

  • Feature Paper
  • Article
  • Open Access
5 Citations
1,903 Views
18 Pages

27 July 2024

In connection with the growing requirements regarding the quality and continuity of energy supply and the dynamic development of renewable energy sources, the need for a thorough analysis of factors affecting power and energy losses and the effective...

  • Feature Paper
  • Article
  • Open Access
2 Citations
2,344 Views
21 Pages

System-Level Dynamic Model of Redox Flow Batteries (RFBs) for Energy Losses Analysis

  • Ikechukwu S. Anyanwu,
  • Fulvio Buzzi,
  • Pekka Peljo,
  • Aldo Bischi and
  • Antonio Bertei

25 October 2024

This paper presents a zero-dimensional dynamic model of redox flow batteries (RFBs) for the system-level analysis of energy loss. The model is used to simulate multi-cell systems considering the effect of design and operational parameters on energy l...

  • Article
  • Open Access
2 Citations
676 Views
20 Pages

3 April 2025

The generation output of distributed power sources and the load possess periodic changes, which cause stability problems in the operation of the power grid. To ensure stability, energy storage devices are generally installed in the power grid, but th...

  • Article
  • Open Access
11 Citations
3,575 Views
25 Pages

18 September 2019

This paper aims at minimizing the total energy consumption of multi-train in an urban rail transit (URT) system by optimizing and updating speed profiles considering regenerative braking power losses on the catenary. To make full use of regenerative...

  • Article
  • Open Access
10 Citations
5,850 Views
22 Pages

28 January 2024

The water and sewage sector is responsible for approximately 3.5% of energy consumption in the European Union (EU). Leaks causing water losses in water distribution systems (WDSs) are responsible for approximately 24% of water consumption in the EU,...

  • Article
  • Open Access
362 Views
37 Pages

30 October 2025

Renewable energy sources (RESs) such as photovoltaic (PV) and fuel cells (FCs) introduce variability that complicates reliable, loss-aware operation of distributed power-flow systems (DPFSs) in smart homes. Frequent charge/discharge cycling of energy...

  • Article
  • Open Access
8 Citations
2,706 Views
28 Pages

Efficient Modeling of Distributed Energy Resources’ Impact on Electric Grid Technical Losses: A Dynamic Regression Approach

  • Alain Aoun,
  • Mehdi Adda,
  • Adrian Ilinca,
  • Mazen Ghandour,
  • Hussein Ibrahim and
  • Saba Salloum

26 April 2024

Technical losses in electrical grids are inherent inefficiencies induced by the transmission and distribution of electricity, resulting in energy losses that can reach up to 40% of the generated energy. These losses pose significant challenges to gri...

  • Review
  • Open Access
9 Citations
3,860 Views
33 Pages

Data-Driven Machine Learning Methods for Nontechnical Losses of Electrical Energy Detection: A State-of-the-Art Review

  • Andrey Pazderin,
  • Firuz Kamalov,
  • Pavel Y. Gubin,
  • Murodbek Safaraliev,
  • Vladislav Samoylenko,
  • Nikita Mukhlynin,
  • Ismoil Odinaev and
  • Inga Zicmane

6 November 2023

Nontechnical losses of electrical energy (NTLEE) have been a persistent issue in both the Russian and global electric power industries since the end of the 20th century. Every year, these losses result in tens of billions of dollars in damages. Promp...

  • Article
  • Open Access
10 Citations
4,784 Views
25 Pages

3 December 2020

The problem of climate change and the reduction of fossil fuels has motivated the development of research focused on improving the efficiency of internal combustion engines. This research proposes a methodology based on mathematical models to determi...

  • Article
  • Open Access
5 Citations
4,024 Views
21 Pages

1 January 2022

Hydraulic steering systems for mechanical devices, for example, manipulators or vehicle steering systems, should be able to achieve high positioning precision with high energy efficiency. However, this condition is very often not met in practical app...

  • Article
  • Open Access
2 Citations
1,055 Views
23 Pages

11 October 2025

This paper presents an optimization-based scheduling strategy for battery energy storage systems (BESS) in alternating current microgrids, considering both grid-connected and islanded operation. The study addresses two independent objectives: minimiz...

  • Article
  • Open Access
9 Citations
2,536 Views
17 Pages

11 September 2022

A non-uniform velocity profile occurs at the inlet of a coastal axial-flow pump which is placed downstream of the forebay with side-intake. As a result, the actual efficiency and head of the pump is dissimilar to the design parameters, and the lack o...

  • Article
  • Open Access
2 Citations
1,432 Views
28 Pages

7 August 2025

Driven by the need for sustainable and efficient energy systems, the optimal management of distributed generation, including photovoltaic systems and battery energy storage systems within prosumer households, is of crucial importance. This requires a...

  • Article
  • Open Access
16 Citations
4,720 Views
25 Pages

28 June 2021

This paper proposes an original approach to investigate the influence of the geometry of Francis turbines draft tube on pressure fluctuations and energy losses in off-design conditions. It is based on Design of Experiments (DOE) of the draft tube geo...

  • Article
  • Open Access
25 Citations
2,924 Views
18 Pages

Optimal Integration of Photovoltaic Sources in Distribution Networks for Daily Energy Losses Minimization Using the Vortex Search Algorithm

  • Alejandra Paz-Rodríguez,
  • Juan Felipe Castro-Ordoñez,
  • Oscar Danilo Montoya and
  • Diego Armando Giral-Ramírez

13 May 2021

This paper deals with the optimal siting and sizing problem of photovoltaic (PV) generators in electrical distribution networks considering daily load and generation profiles. It proposes the discrete-continuous version of the vortex search algorithm...

  • Feature Paper
  • Article
  • Open Access
9 Citations
3,236 Views
14 Pages

Computing Frequency-Dependent Hysteresis Loops and Dynamic Energy Losses in Soft Magnetic Alloys via Artificial Neural Networks

  • Simone Quondam Antonio,
  • Francesco Riganti Fulginei,
  • Gabriele Maria Lozito,
  • Antonio Faba,
  • Alessandro Salvini,
  • Vincenzo Bonaiuto and
  • Fausto Sargeni

4 July 2022

A neural network model to predict the dynamic hysteresis loops and the energy-loss curves (i.e., the energy versus the amplitude of the magnetic induction) of soft ferromagnetic materials at different operating frequencies is proposed herein. Firstly...

  • Article
  • Open Access
3 Citations
2,376 Views
28 Pages

5 September 2024

Amidst the growing demand for efficient and sustainable energy storage solutions, Flywheel Energy Storage Systems (FESSs) have garnered attention for their potential to meet modern energy needs. This study uses Computational Fluid Dynamics (CFD) simu...

  • Article
  • Open Access
21 Citations
4,205 Views
14 Pages

Research of the Energy Losses of Photovoltaic (PV) Modules after Hail Simulation Using a Newly-Created Testbed

  • Kristina Kilikevičienė,
  • Jonas Matijošius,
  • Artūras Kilikevičius,
  • Mindaugas Jurevičius,
  • Vytautas Makarskas,
  • Jacek Caban and
  • Andrzej Marczuk

28 November 2019

The impact of hail ice cubes on composite structures (such as solar cells) causes actual defects. This article presents a series of tests, in which solar cell modules were exposed to hail simulation testbed balls, allowing to assess the following: th...

  • Article
  • Open Access
18 Citations
9,190 Views
23 Pages

Food Losses and Wastage along the Wheat Value Chain in Egypt and Their Implications on Food and Energy Security, Natural Resources, and the Environment

  • Yigezu A. Yigezu,
  • Moustafa A. Moustafa,
  • Mohamed M. Mohiy,
  • Shaimaa E. Ibrahim,
  • Wael M. Ghanem,
  • Abdoul-Aziz Niane,
  • Enas Abbas,
  • Sami R. S. Sabry and
  • Habib Halila

7 September 2021

Pushing yield frontiers of cereals and legumes is becoming increasingly difficult, especially in drylands. This paper argues and provides empirical evidence that food loss and wastage constitute a sizeable proportion of the total wheat supply in Egyp...

  • Article
  • Open Access
28 Citations
5,313 Views
27 Pages

4 August 2019

In this paper, an improved smart meter data-based three-stage algorithm to calculate the power/energy losses in three-phase networks with the voltage level below 0.4 kV (low voltage—LV) is presented. In the first stage, the input data regarding...

  • Article
  • Open Access
5 Citations
3,592 Views
9 Pages

14 April 2021

Promoting energy conservation in university dormitories is challenging because student residents are typically charged a flat utility fee. One possibility to curb excessive energy use in the absence of monetary incentives is to highlight the environm...

  • Article
  • Open Access
1,233 Views
41 Pages

Optimal D-STATCOM Operation in Power Distribution Systems to Minimize Energy Losses and CO2 Emissions: A Master–Slave Methodology Based on Metaheuristic Techniques

  • Rubén Iván Bolaños,
  • Cristopher Enrique Torres-Mancilla,
  • Luis Fernando Grisales-Noreña,
  • Oscar Danilo Montoya and
  • Jesús C. Hernández

11 July 2025

In this paper, we address the problem of intelligent operation of Distribution Static Synchronous Compensators (D-STATCOMs) in power distribution systems to reduce energy losses and CO2 emissions while improving system operating conditions. In additi...

  • Article
  • Open Access
9 Citations
2,486 Views
23 Pages

Optimal Integration of Battery Systems in Grid-Connected Networks for Reducing Energy Losses and CO2 Emissions

  • Luis Fernando Grisales-Noreña,
  • Oscar Danilo Montoya and
  • Alberto-Jesus Perea-Moreno

26 March 2023

This work addressed the problem regarding the optimal integration of battery systems (BS) in grid-connected networks (GCNs) with the purpose of reducing energy losses and CO2 emissions, for which it formulates a mathematical model that considers the...

  • Article
  • Open Access
14 Citations
5,928 Views
26 Pages

Estimates of Food Losses and Wastes at Each Node of the Wheat Value Chain in Morocco: Implications on Food and Energy Security, Natural Resources, and Greenhouse Gas Emissions

  • El Houssine Bartali,
  • Mohamed Boutfirass,
  • Yigezu Atnafe Yigezu,
  • Abdoul Aziz Niane,
  • Mohamed Boughlala,
  • Mohammed Belmakki and
  • Habib Halila

9 December 2022

Several research and development efforts have been made to ensure food security in developing countries. Dissemination of improved agricultural technologies was used as the main avenue through which some increases in food supply have been achieved. H...

  • Article
  • Open Access
40 Citations
3,598 Views
20 Pages

17 March 2023

Incorporating photovoltaic (PV) inverters in power distribution systems via static synchronous compensators (PV-STATCOM) during the nighttime has lately been described as a solution to improve network performance. Hunter prey optimization (HPO) is in...

  • Article
  • Open Access
5 Citations
2,955 Views
27 Pages

4 January 2025

This study investigates the modeling and dynamic analysis of three coupled electromechanical systems, emphasizing interactions between a magnetic linear drive and frictional contact with flat springs. The experimental setup includes a table driven by...

  • Article
  • Open Access
2 Citations
4,528 Views
13 Pages

17 July 2022

In this work, the effect of cold deformation prior to annealing treatment on the microstructure and magnetic hysteresis energy losses in a low carbon grain non-oriented semi-processed electrical steel with 0.60 mm thickness was investigated. The samp...

  • Article
  • Open Access
20 Citations
4,245 Views
15 Pages

27 July 2022

The loss of distribution networks caused by various electrical motors including transformers and generators can significantly affect the efficiency and economical operation of the power grid, especially for new power systems with high penetration of...

  • Article
  • Open Access
2 Citations
2,265 Views
24 Pages

1 August 2024

Optimizing the design of the top compression ring holds immense importance in reducing friction across both traditional Internal Combustion (IC) engines and hybrid power systems. This study investigates the impact of alternative fuels, specifically h...

  • Review
  • Open Access
17 Citations
3,765 Views
15 Pages

12 December 2023

This paper highlights the use and applications of the energy loss function (ELF) for materials analysis by using electron energy loss spectroscopy (EELS). The basic Drude–Lindhart theory of the ELF is briefly presented along with reference to r...

  • Article
  • Open Access
12 Citations
4,865 Views
12 Pages

Energy Loss in a MEMS Disk Resonator Gyroscope

  • Jianbing Xie,
  • Yongcun Hao and
  • Weizheng Yuan

24 July 2019

Analysing and minimizing energy loss is crucial for high performance disk resonator gyroscopes (DRGs). Generally, the primary energy loss mechanism for high vacuum packaged microelectromechanical system (MEMS) resonators includes thermoelastic dampin...

  • Article
  • Open Access
1 Citations
1,723 Views
14 Pages

Energy Loss of Magnetic Coupling for Pump

  • Jiaqiong Wang,
  • Jundong Duan,
  • Ruijie Zhang and
  • Jingru Sun

21 January 2025

To investigate the energy loss characteristics of magnetic pumps, an experimental setup for magnetic transmission in pumps was constructed. Through experiments, the impact of various factors on the eddy current loss of the magnetic coupling was exami...

  • Article
  • Open Access
45 Citations
6,963 Views
15 Pages

13 July 2016

Integrating wave energy converters with breakwaters is a promising concept for wave energy utilization. On the basis of fulfilling the wave protection demands, pile-supported Oscillating Water Column (OWC)-type breakwaters can also meet the local nee...

  • Article
  • Open Access
5 Citations
2,490 Views
14 Pages

26 September 2021

In many heavy machines, the use of high force drives is required. For such tasks, electrohydraulic servo drives with proportional valves are used most often. In these valves, the proportional electromagnets are applied. If high precise control is add...

  • Article
  • Open Access
2 Citations
1,477 Views
15 Pages

Simulation and Experimental Research on the Energy Loss of Confluence Pipelines

  • Shenghao Zhou,
  • Chao Pang,
  • Junzhe Lin,
  • Qingkai Han and
  • Zhong Luo

8 December 2024

Compared with T- and Y-shaped confluence pipelines, arc confluence pipelines have a smaller energy loss coefficient. In the study presented herein, numerical simulation analyses of the flow fields of T-shaped, Y-shaped, bifurcated, and arc confluence...

  • Article
  • Open Access
3 Citations
2,989 Views
24 Pages

Multi-Point-of-View Energy Loss Analysis in a Refuse Truck Hydraulic System

  • Luis Javier Berne,
  • Gustavo Raush,
  • Pedro Javier Gamez-Montero,
  • Pedro Roquet and
  • Esteban Codina

9 May 2021

In recent years, much research has focused on reducing the power consumption of mobile hydraulic machines due to rising fuel costs, regulations on combustion engine emissions and the need to reduce the size and weight of the storage devices in hybrid...

  • Concept Paper
  • Open Access
30 Citations
21,329 Views
22 Pages

Increasing Energy Flux to Maintain Diet-Induced Weight Loss

  • Christopher L. Melby,
  • Hunter L. Paris,
  • R. Drew Sayer,
  • Christopher Bell and
  • James O. Hill

21 October 2019

Long-term maintenance of weight loss requires sustained energy balance at the reduced body weight. This could be attained by coupling low total daily energy intake (TDEI) with low total daily energy expenditure (TDEE; low energy flux), or by pairing...

  • Article
  • Open Access
11 Citations
4,528 Views
21 Pages

Energy Loss in Steep Open Channels with Step-Pools

  • Suresh Kumar Thappeta,
  • S. Murty Bhallamudi,
  • Venu Chandra,
  • Peter Fiener and
  • Abul Basar M. Baki

31 December 2020

Three-dimensional numerical simulations were performed for different flow rates and various geometrical parameters of step-pools in steep open channels to gain insight into the occurrence of energy loss and its dependence on the flow structure. For a...

  • Article
  • Open Access
1 Citations
3,124 Views
10 Pages

22 August 2019

Sensitive volume thickness for silicon on insulator (SOI) devices has scaled to the point that energy loss straggling cannot be ignored within the development of the manufacturing process. In this study, irradiation experiments and Geant4 simulation...

  • Article
  • Open Access
1 Citations
2,329 Views
13 Pages

Experiment and Analysis on Friction Damage and Energy Loss Characteristics of Potatoes

  • Yaping Guo,
  • Shengshi Xie,
  • Weigang Deng,
  • Junru Li,
  • Zhenyu Shang,
  • Kailiang Lu,
  • Xiuzhi Gai and
  • Xinjie Ji

3 March 2023

In view of the problem that the research of potato friction damage is not sufficiently systematic and the characteristics of potato friction damage and energy loss are not clear, this paper investigates the initial height, potato mass, potato varieti...

  • Article
  • Open Access
8 Citations
2,688 Views
21 Pages

Study of Energy Loss for Distributed Power-Flow Assignment in a Smart Home Environment

  • Ruengwit Khwanrit,
  • Yuto Lim,
  • Saher Javaid,
  • Somsak Kittipiyakul and
  • Yasuo Tan

24 October 2022

Today, renewable energy resources are a critical component of distributed energy systems. However, their intermittent nature makes them unstable energy sources, making them very difficult to use optimally in any energy system. Battery storage is a vi...

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