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Energies, Volume 16, Issue 7

April-1 2023 - 364 articles

Cover Story: Methane and methanol are promising products for carbon capture and utilization concepts through CO2 hydrogenation. In the search for effective, robust, easy-to-manufacture and stable catalysts, supported metal-based catalysts have been proven to be advantageous. Whilst nickel for methane synthesis and copper for methanol synthesis stand out as efficient and cost-effective catalytically active metals, the best choice of a support material is still a matter of ongoing debate. This review discusses the potential of the alkaline earth metal oxide MgO as a support material for CO2 hydrogenation catalysts. Due to its basicity, it gives access to bifunctional catalysts by showing a pronounced CO2 adsorption capacity. Whilst carbonate formation seems to be beneficial in CO2 methanation, it may have an adverse effect during methanol synthesis from CO2View this paper
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Articles (364)

  • Article
  • Open Access
6 Citations
3,339 Views
19 Pages

6 April 2023

The calcium looping (CaL) process, which exploits the reversible calcination of calcium carbonate, has been proposed as a solution to the challenges facing deployment of concentrated solar power (CSP). As an extension of the work undertaken to date,...

  • Review
  • Open Access
3 Citations
4,250 Views
29 Pages

An Assessment of Energy Flexibility Solutions from the Perspective of Low-Tech

  • Muhammad Salman Shahid,
  • Seun Osonuga,
  • Nana Kofi Twum-Duah,
  • Sacha Hodencq,
  • Benoit Delinchant and
  • Frédéric Wurtz

6 April 2023

The energy transition is a multidisciplinary challenge that warrants solutions that are robust and sustainable. Energy flexibility, one of the key pillars of the energy transition, is an umbrella term that covers multiple innovative solutions impleme...

  • Article
  • Open Access
1 Citations
2,000 Views
10 Pages

On the Summarization of Meteorological Data for Solar Thermal Power Generation Forecast

  • Icaro Figueiredo Vilasboas,
  • Julio Augusto Mendes da Silva and
  • Osvaldo José Venturini

6 April 2023

The establishment of the typical weather conditions of a given locality is of fundamental importance to determine the optimal configurations for solar thermal power plants and to calculate feasibility indicators in the power plant design phase. There...

  • Article
  • Open Access
4 Citations
2,325 Views
17 Pages

In Situ Biogas Upgrading in a Randomly Packed Gas-Stirred Tank Reactor (GSTR)

  • Giuseppe Lembo,
  • Silvia Rosa,
  • Antonella Marone and
  • Antonella Signorini

6 April 2023

This study evaluated different strategies to increase gas–liquid mass transfer in a randomly packed gas stirred tank reactor (GSTR) continuously fed with second cheese whey (SCW), at thermophilic condition (55 °C), for the purpose of carryi...

  • Article
  • Open Access
5 Citations
2,583 Views
15 Pages

Prediction Error-Based Power Forecasting of Wind Energy System Using Hybrid WT–ROPSO–NARMAX Model

  • Aamer A. Shah,
  • Almani A. Aftab,
  • Xueshan Han,
  • Mazhar Hussain Baloch,
  • Mohamed Shaik Honnurvali and
  • Sohaib Tahir Chauhdary

6 April 2023

The volatility and intermittency of wind energy result in highly unpredictable wind power output, which poses challenges to the stability of the intact power system when integrating large-scale wind power. The accuracy of wind power prediction is cri...

  • Article
  • Open Access
2 Citations
2,479 Views
15 Pages

Impact of Static Air-Gap Eccentricity Fault on Synchronous Generator Efficiency

  • Yu-Ling He,
  • Ling Tang,
  • Kai Sun,
  • Wen-Hao Zhang,
  • Xue-Wei Wu and
  • Hai-Peng Wang

6 April 2023

This paper presents a precise analysis of the efficiency characteristic of the synchronous generator under both normal and SAGE conditions. In this work, various losses of the synchronous generator are computed by the qualitative theoretical model an...

  • Article
  • Open Access
15 Citations
3,325 Views
19 Pages

Research and Optimization of Hybrid On-Board Energy Storage System of an Electric Locomotive for Quarry Rail Transport

  • Sergey Goolak,
  • Liliia Kondratieva,
  • Ievgen Riabov,
  • Vaidas Lukoševičius,
  • Artūras Keršys and
  • Rolandas Makaras

6 April 2023

Operation modes of rolling stock at mining enterprises are considered and analyzed. The justification of the need to replace it with a modern specialized electric locomotive for quarry railway transport, equipped with an asynchronous traction electri...

  • Article
  • Open Access
4 Citations
3,536 Views
23 Pages

6 April 2023

One of the most effective strategies to mitigate water shortages worldwide is to reuse treated wastewater for freshwater production employing reverse osmosis (RO) technology. This strategy is appropriate in urban areas of arid or semi-arid regions as...

  • Feature Paper
  • Article
  • Open Access
8 Citations
4,850 Views
14 Pages

6 April 2023

Lithium-ion batteries have found applications in many parts of our daily lives. Predicting their remaining useful life (RUL) is thus essential for management and prognostics. Most approaches look at early life prediction of RUL in the context of desi...

  • Article
  • Open Access
8 Citations
3,247 Views
21 Pages

Simple and Robust MPPT Current Control of a Wound Rotor Synchronous Wind Generator

  • Lucky Dube,
  • Graham C. Garner,
  • Karen S. Garner and
  • Maarten J. Kamper

6 April 2023

In the search for efficient non-permanent magnet variable-speed wind generator solutions, this paper proposes a maximum power point tracking (MPPT) current-control method for a wound rotor synchronous wind generator. The focus is on direct-drive, med...

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Energies - ISSN 1996-1073