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Energies, Volume 18, Issue 4

February-2 2025 - 256 articles

Cover Story: A new solar coating with a Ag infrared reflector (IR) for application at 550 °C is proposed. In the past, ENEA developed solar coatings for applications at 550 °C based on W IR. The hemispherical emittance (εh) of these coatings was reduced by replacing W with Ag. The high diffusivity of Ag at 550 °C was addressed by foreseeing two stabilizing layers enclosing Ag. One W stabilizing layer was placed between the substrate and Ag, and a second stabilizing layer of AlN was placed between the Ag and solar absorber. The manufactured solar coating exhibited a solar absorptance (αS) of 95%, comparable to ENEA coatings for 550 °C incorporating W IR, whereas the estimated εh at 550 °C was 2% lower than the best ENEA coating with W IR for the same temperature. Accelerated aging tests revealed an undetectable αS degradation and an εh increase at 550 °C of 0.42% at the end of the 25-year lifetime. View this paper
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Articles (256)

  • Article
  • Open Access
2 Citations
1,429 Views
19 Pages

19 February 2025

Hydrogen holds an important strategic position in the energy systems of many countries. Many studies have analyzed the acceptance of hydrogen energy technology from the public’s perspective, but few have examined it from the corporate perspecti...

  • Article
  • Open Access
25 Citations
1,282 Views
35 Pages

19 February 2025

Recently, the rate of offshore oil production has increased, which creates a need to develop technical solutions for the implementation of more efficient processes on offshore platforms. A relevant solution is the development and application of digit...

  • Article
  • Open Access
2 Citations
1,272 Views
27 Pages

Investigation on Thermal Performance of a Battery Pack Cooled by Refrigerant R134a in Ribbed Cooling Channels

  • Tieyu Gao,
  • Jiadian Wang,
  • Haonan Sha,
  • Hao Yang,
  • Chenguang Lai,
  • Xiaojin Fu,
  • Guangtao Zhai and
  • Junxiong Zeng

19 February 2025

This study numerically investigates the thermal performance of a refrigerant-based battery thermal management system (BTMS) under various operating conditions. A validated numerical model is used to examine the effects of cooling channel rib configur...

  • Article
  • Open Access
6 Citations
2,734 Views
21 Pages

19 February 2025

At present, the Colombian government is faced with the challenge of guaranteeing access to energy services for all its inhabitants. However, as there are isolated populations or populations with difficult access to conventional electricity grids in t...

  • Article
  • Open Access
2 Citations
997 Views
20 Pages

Numerical Simulation of CO2 Immiscible Displacement Based on Three-Dimensional Pore Structure

  • Feng Shi,
  • Xiaoshan Li,
  • Gen Kou,
  • Huan Liu,
  • Sai Liu,
  • Zhen Liu,
  • Ziheng Zhao and
  • Xiaoyu Jiang

19 February 2025

CO2-enhanced tight oil production can increase crude oil recovery while part of the injected CO2 is geologically sequestered. This process is influenced by factors such as gas injection rate, oil/gas viscosity ratio, and contact angle. Understanding...

  • Feature Paper
  • Review
  • Open Access
2 Citations
2,366 Views
18 Pages

Production Efficiency of Advanced Liquid Biofuels: Prospects and Challenges

  • Tamás Mizik,
  • Christian Barika Igbeghe and
  • Zsuzsanna Deák

19 February 2025

Renewable sources are becoming more critical in light of global warming and the recent energy crisis. As a renewable energy source, biofuels may play an essential role in this process, especially in the transport sector. Advanced biofuels provide a g...

  • Article
  • Open Access
3 Citations
2,288 Views
26 Pages

Agrivoltaics, Opportunities for Hydrogen Generation, and Market Developments

  • Torsten Clemens,
  • Andreas Lunzer,
  • Martin Hunyadi-Gall and
  • Pablo Gil

19 February 2025

To achieve deep decarbonization, renewable energy generation must be substantially increased. The technologies with the lowest levelized cost of electricity (LCOE) are land-based photovoltaics (PVs) and wind energy. Agri-PVs offer the potential for d...

  • Article
  • Open Access
4 Citations
1,193 Views
27 Pages

19 February 2025

Switched reluctance motor drives are becoming attractive for electric vehicle propulsion systems due to their simple and cheap construction. However, their operation is degraded by torque ripples due to the salient nature of the stator and rotor pole...

  • Article
  • Open Access
2 Citations
800 Views
24 Pages

Design of a Three-Input, Single-Output DC–DC Converter for Electric Charging Station

  • Sivaram Natarajan Vijayanathan,
  • Lavanya Anbazhagan,
  • Jagabar Sathik Mohamed Ali,
  • Divya Navamani Jayachandran,
  • Pradeep Vishnuram,
  • CH. Naga Sai Kalyan,
  • Mustafa Abdullah and
  • Rajkumar Singh Rathore

19 February 2025

This article presents a novel four-port DC–DC converter designed to integrate photovoltaics, fuel cells, and supercapacitors with one DC charging single-output port with a reduced component count. The proposed converter ensures an efficient pow...

  • Article
  • Open Access
1 Citations
872 Views
16 Pages

The Tectonic Control on Shale Oil Migration and Accumulation of the Lower Jurassic Daanzhai Member of the Ziliujing Formation, Sichuan Basin, China

  • Zhuopei Li,
  • Haihua Zhu,
  • Minglei Wang,
  • Benjian Zhang,
  • Yadong Zhou,
  • Haitao Hong,
  • Yucong Li and
  • Xingzhi Wang

19 February 2025

In order to understand the tectonic control on shale oil migration and accumulation, samples of the Daanzhai Member of the Lower Jurassic Ziliujing Formation from the well core in a tectonically stable area and upright anticline outcrop were selected...

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Energies - ISSN 1996-1073