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Multiple Objective Compromised Method for Power Management in Virtual Power Plants
Energies - Tập 4 Số 4 - Trang 700-716
Jinxia Gong, Da Xie, Chuanwen Jiang, Yanchi Zhang
In practical optimization, a priority requirement for different objectives of multiple objective optimization problems should be considered. In this paper, the distributed power management of a Virtual Power Plant (VPP) with priority requirement is optimized by the compromised method. The operation optimization model of VPP is formulated as a fuzzy multiple objective optimization problem c...... hiện toàn bộ
False Shades of Green: The Case of Brazilian Amazonian Hydropower
Energies - Tập 7 Số 9 - Trang 6063-6082
James R. Kahn, Carlos Edwar de Carvalho Freitas, Miguel Petrere
The Federal Government of Brazil has ambitious plans to build a system of 58 additional hydroelectric dams in the Brazilian Amazon, with Hundreds of additional dams planned for other countries in the watershed. Although hydropower is often billed as clean energy, we argue that the environmental impacts of this project are likely to be large, and will result in substantial loss of biodiver...... hiện toàn bộ
Experimental Study on Influence of Pitch Motion on the Wake of a Floating Wind Turbine Model
Energies - Tập 7 Số 4 - Trang 1954-1985
Stanislav Rockel, Elizabeth Camp, J. Schmidt, Joachim Peinke, Raúl Bayoán Cal, Michael Hölling
Wind tunnel experiments were performed, where the development of the wake of a model wind turbine was measured using stereo Particle Image Velocimetry to observe the influence of platform pitch motion. The wakes of a classical bottom fixed turbine and a streamwise oscillating turbine are compared. Results indicate that platform pitch creates an upward shift in all components of the flow an...... hiện toàn bộ
Turbulent Flow Inside and Above a Wind Farm: A Wind-Tunnel Study
Energies - Tập 4 Số 11 - Trang 1916-1936
Leonardo P. Chamorro, Fernando Porté‐Agel
Wind-tunnel experiments were carried out to better understand boundary layer effects on the flow pattern inside and above a model wind farm under thermally neutral conditions. Cross-wire anemometry was used to characterize the turbulent flow structure at different locations around a 10 by 3 array of model wind turbines aligned with the mean flow and arranged in two different layouts (inter...... hiện toàn bộ
Hydrogen-Rich Syngas and Biochar Production by Non-Catalytic Valorization of Date Palm Seeds
Energies - Tập 15 Số 8 - Trang 2727
Hani Hussain Sait, Ahmad Hussain, M. Bassyouni, Imtiaz Ali, Ramesh Kanthasamy, Bamidele Victor Ayodele, Yasser Elhenawy
Pyrolysis has been demonstrated to be a highly effective thermochemical process for converting complex biomaterials into biochar and syngas rich in hydrogen. The pyrolysis of mixed date palm seeds from Saudi Arabia was conducted using a fixed-bed pyrolyzer that was custom made for the purpose. The influence of the pyrolysis temperature (200–1000 °C) on the various physicochemical parameter...... hiện toàn bộ
Analysis of the Physical Properties of Hydrate Sediments Recovered from the Pearl River Mouth Basin in the South China Sea: Preliminary Investigation for Gas Hydrate Exploitation
Energies - Tập 10 Số 4 - Trang 531
Bin Wang, Peng Huo, Tingting Luo, Zhen Fan, Fanglan Liu, Bo Xiao, Mingjun Yang, Jiafei Zhao, Yongchen Song
Laboratory based research on the physical properties of gas hydrate hosting sediment matrix was carried out on the non-pressurized hydrate-bearing sediment samples from the Chinese Guangzhou Marine Geological Survey 2 (GMGS2) drilling expedition in the Pearl River Mouth (PRM) basin. Measurements of index properties, surface characteristics, and thermal and mechanical properties were perfor...... hiện toàn bộ
Extreme Quantiles Dynamic Line Rating Forecasts and Application on Network Operation
Energies - Tập 13 Số 12 - Trang 3090 - 2020
Dupin, Romain, Cavalcante, Laura, Bessa, Ricardo J., Kariniotakis, Georges, Michiorri, Andrea
This paper presents a study on dynamic line rating (DLR) forecasting procedure aimed at developing a new methodology able to forecast future ampacity values for rare and extreme events. This is motivated by the belief that to apply DLR network operators must be able to forecast their values and this must be based on conservative approaches able to guarantee the safe operation of the network. The p...... hiện toàn bộ
Environmental Impacts and Costs of Hydrotreated Vegetable Oils, Transesterified Lipids and Woody BTL—A Review
Energies - Tập 4 Số 6 - Trang 845-877
Kathrin Sunde, Andreas Brekke, Birger Solberg
This article reviews and compares assessments of three biodiesel fuels: (1) transesterified lipids, (2) hydrotreated vegetable oils (HVO), and (3) woody biomass-to-liquid (BTL) Fischer-Tropsch diesel and selected feedstock options. The article attempts to rank the environmental performance and costs of fuel and feedstock combinations. Due to inter-study differences in goal and study assump...... hiện toàn bộ
Review on Deep Neural Networks Applied to Low-Frequency NILM
Energies - Tập 14 Số 9 - Trang 2390
Patrick Huber, Alberto Calatroni, Andreas Rumsch, Andrew Paice
This paper reviews non-intrusive load monitoring (NILM) approaches that employ deep neural networks to disaggregate appliances from low frequency data, i.e., data with sampling rates lower than the AC base frequency. The overall purpose of this review is, firstly, to gain an overview on the state of the research up to November 2020, and secondly, to identify worthwhile open research topics...... hiện toàn bộ
Algal Biofuels: Current Status and Key Challenges
Energies - Tập 12 Số 10 - Trang 1920
Marwa Gamal Saad, Noura S. Dosoky, M. Sh. Zoromba, Hesham M. Shafik
The current fossil fuel reserves are not sufficient to meet the increasing demand and very soon will become exhausted. Pollution, global warming, and inflated oil prices have led the quest for renewable energy sources. Algal biofuels represent a potential source of renewable energy. Algae, as the third generation feedstock, are suitable for biodiesel and bioethanol production due to their ...... hiện toàn bộ
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