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Energies, Volume 16, Issue 20

October-2 2023 - 203 articles

Cover Story: There is growing interest in power generation from tidal streams by tidal turbine arrays. Turbine fatigue loading is an important design condition, and prediction requires understanding of the onset flow conditions—particularly shear, turbulence, and waves—that define unsteady loading. Three acoustic current profiler measurements and several numerical model predictions are analyzed to establish the occurrence of and spatial variation in such flows at a major tidal stream site, Raz Blanchard. Fatigue loads are assessed via the use of an unsteady blade element momentum model. Model predictions of shear and turbulence provide fatigue loads to within 8% of loads due to the measured conditions, falling to 3% if measured turbulence intensities are used. Both shear and turbulence vary across the site, contributing to the variation in predicted fatigue load. View this paper
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Articles (203)

  • Article
  • Open Access
6 Citations
2,048 Views
22 Pages

Investigation of the Water-Invasion Gas Efficiency in the Kela-2 Gas Field Using Multiple Experiments

  • Donghuan Han,
  • Wei Xiong,
  • Tongwen Jiang,
  • Shusheng Gao,
  • Huaxun Liu,
  • Liyou Ye,
  • Wenqing Zhu and
  • Weiguo An

23 October 2023

Although improving the recovery of water-invaded gas reservoirs has been extensively studied in the natural gas industry, the nature of the efficiency of water-invaded gas recovery remains uncertain. Low-field nuclear magnetic resonance (NMR) can be...

  • Article
  • Open Access
1 Citations
2,044 Views
22 Pages

23 October 2023

Although 3D printing technology has been applied worldwide, the problem of connecting a printed structure and a foundation has rarely been examined. In particular, loads in the horizontal direction, such as wind loads and earthquake loads, can signif...

  • Article
  • Open Access
3 Citations
2,180 Views
32 Pages

CO2 Injection via a Horizontal Well into the Coal Seam at the Experimental Mine Barbara in Poland

  • Kamil Stańczyk,
  • Robert Hildebrandt,
  • Jarosław Chećko,
  • Tomasz Urych,
  • Marian Wiatowski,
  • Shakil Masum,
  • Sivachidambaram Sadasivam,
  • Thomas Kempka,
  • Christopher Otto and
  • Priscilla Ernst
  • + 1 author

23 October 2023

This study, conducted as part of the ROCCS project, investigates the potential of coal seams for CO2 sequestration through in situ tests. The in situ tests, performed at Experimental Mine Barbara in Mikołów, Poland, involved injecting CO2...

  • Article
  • Open Access
5 Citations
1,612 Views
23 Pages

A Novel Hybrid Power-Grid Investment Optimization Model with Collaborative Consideration of Risk and Benefit

  • Changzheng Gao,
  • Xiuna Wang,
  • Dongwei Li,
  • Chao Han,
  • Weiyang You and
  • Yihang Zhao

23 October 2023

Power-grid investment (PGI) optimization is crucial for boosting investment performance, lowering investment risks, and assuring the sustainable development of power-grid businesses. However, existing studies, which primarily concentrate on financial...

  • Article
  • Open Access
7 Citations
4,537 Views
19 Pages

Assessment of a Francis Micro Hydro Turbine Performance Installed in a Wastewater Treatment Plant

  • Paweł Tomczyk,
  • Krzysztof Mastalerek,
  • Mirosław Wiatkowski,
  • Alban Kuriqi and
  • Jakub Jurasz

23 October 2023

The purpose of this research work was to examine the hydroelectric potential of wastewater treatment plants by harnessing the kinetic and/or potential energy of treated wastewater for electricity generation. Such a concept encapsulates the essence of...

  • Article
  • Open Access
36 Citations
1,849 Views
16 Pages

23 October 2023

The integration of renewable energy systems in buildings leads to a reduction in energy bills for end users and a reduction in the carbon footprint of such buildings, usually referred to as prosumers. In addition, the installation of charging points...

  • Article
  • Open Access
11 Citations
3,165 Views
20 Pages

23 October 2023

In the past few years, it can be seen that the automotive market has been developing quite rapidly, especially when it comes to electric cars. This is because the development of sustainable cars seems to be an extremely important issue at the moment....

  • Article
  • Open Access
12 Citations
2,359 Views
20 Pages

Explainable Approaches for Forecasting Building Electricity Consumption

  • Nikos Sakkas,
  • Sofia Yfanti,
  • Pooja Shah,
  • Nikitas Sakkas,
  • Christina Chaniotakis,
  • Costas Daskalakis,
  • Eduard Barbu and
  • Marharyta Domnich

23 October 2023

Building electric energy is characterized by a significant increase in its uses (e.g., vehicle charging), a rapidly declining cost of all related data collection, and a proliferation of smart grid concepts, including diverse and flexible electricity...

  • Article
  • Open Access
2 Citations
1,571 Views
19 Pages

Smart Switching in Single-Phase Grid-Connected Photovoltaic Power Systems for Inrush Current Elimination

  • Gerardo de J. Martínez-Figueroa,
  • Santiago Bogarra and
  • Felipe Córcoles

23 October 2023

Grid-connected photovoltaic (PV) power systems are one of the most promising technologies to address growing energy demand and ecological challenges. This paper proposes smart switching to mitigate inrush currents during the connection of single-phas...

  • Article
  • Open Access
11 Citations
3,011 Views
15 Pages

Storage of Compressed Natural Gases

  • Gulnur Zakirova,
  • Evgeny Krapivsky,
  • Anastasia Berezovskaya and
  • Artem Borisov

23 October 2023

The article analyzes the modern theory and practice of transportation and storage of compressed natural gas. The expediency of the inclusion of a floating storage berth for the loading of gas carriers and container ships into the infrastructure of ma...

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Energies - ISSN 1996-1073Creative Common CC BY license