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Energies, Volume 12, Issue 19

October-1 2019 - 215 articles

Cover Story: Froude-number scaling is a common experimental technique used in fire safety science. However, its limitations are not well defined. We identified these limits through physical and numerical modeling. Our findings relate the applicability of the method to flow turbulence and give guidance for a better setup of future experiments. View this paper.
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Articles (215)

  • Review
  • Open Access
55 Citations
8,784 Views
24 Pages

Biogas Upgrading: A Review of National Biomethane Strategies and Support Policies in Selected Countries

  • Christopher Schmid,
  • Thomas Horschig,
  • Alexandra Pfeiffer,
  • Nora Szarka and
  • Daniela Thrän

8 October 2019

Bioenergy contributes significantly towards the share of renewable energies, in Europe and worldwide. Besides solid and liquid biofuels, gaseous biofuels, such as biogas or upgraded biogas (biomethane), are an established renewable fuel in Europe. Al...

  • Article
  • Open Access
15 Citations
4,424 Views
15 Pages

7 October 2019

Surfactant–polymer (SP) flooding has significant potential to enhance oil recovery after water flooding in mature reservoirs. However, the economic benefit of the SP flooding process is unsatisfactory under low oil prices. Thus, it is necessary...

  • Article
  • Open Access
10 Citations
4,112 Views
15 Pages

Effect of Vertical Metal Plate on Transfer Efficiency of the Wireless Power Transfer System

  • Lantao Huang,
  • Jiahao Zou,
  • Yihan Zhou,
  • Yan Hong,
  • Jing Zhang and
  • Zinan Ding

7 October 2019

Power transfer efficiency is an important issue in wireless power transfer (WPT). In actual applications, the WPT system may be exposed to a complex electromagnetic environment. The metal which is inevitably or accidentally close to the system will i...

  • Article
  • Open Access
10 Citations
3,707 Views
18 Pages

A Novel Real-Time Mechanism Modeling Approach for Turbofan Engine

  • Qianjing Chen,
  • Jinquan Huang,
  • Muxuan Pan and
  • Feng Lu

7 October 2019

Nonlinear component level model (NCLM) is a widely used model for aeroengines. However, it requires iterative calculation and is, therefore, time-consuming, which restricts its real-time application. This study aims at developing a simplified real-ti...

  • Article
  • Open Access
2 Citations
3,520 Views
20 Pages

Flexible Options for Greenhouse Gas-Emitting Energy Producer

  • Andrey Krasovskii,
  • Nikolay Khabarov,
  • Ruben Lubowski and
  • Michael Obersteiner

7 October 2019

The reduction of emissions from deforestation and forest degradation (REDD) constitutes part of the international climate agreements and contributes to the Sustainable Development Goals. This research is motivated by the risks associated with the fut...

  • Article
  • Open Access
10 Citations
3,741 Views
15 Pages

7 October 2019

The traditional mechanism models used in short-circuit current calculations have shortcomings in terms of accuracy and speed for distribution systems with inverter-interfaced distributed generators (IIDGs). Faced with this issue, this paper proposes...

  • Article
  • Open Access
6 Citations
2,977 Views
18 Pages

6 October 2019

Substantial heat transfer enhancement can be achieved by cooling with air/water mist flow because of droplet impingement and liquid film/fragment evaporation on the heated surface, which leads to a high heat-removal rate. An experimental investigatio...

  • Article
  • Open Access
4 Citations
5,862 Views
21 Pages

High-efficiency Bidirectional Buck–Boost Converter for Residential Energy Storage System

  • Seok-Hyeong Ham,
  • Yoon-Geol Choi,
  • Hyeon-Seok Lee,
  • Sang-Won Lee,
  • Su-Chang Lee and
  • Bongkoo Kang

6 October 2019

This paper proposes a bidirectional dc–dc converter for residential micro-grid applications. The proposed converter can operate over an input voltage range that overlaps the output voltage range. This converter uses two snubber capacitors to re...

  • Article
  • Open Access
41 Citations
4,159 Views
21 Pages

Towards the Development of Syngas/Biomethane Electrolytic Production, Using Liquefied Biomass and Heterogeneous Catalyst

  • Ana Gonçalves,
  • Jaime Filipe Puna,
  • Luís Guerra,
  • José Campos Rodrigues,
  • João Fernando Gomes,
  • Maria Teresa Santos and
  • Diogo Alves

6 October 2019

This paper presents results on the research currently being carried out with the objective of developing new electrochemistry-based processes to produce renewable synthetic fuels from liquefied biomass. In the current research line, the gas mixtures...

  • Review
  • Open Access
51 Citations
9,719 Views
18 Pages

Energy Savings from Feedback Systems: A Meta-Studies’ Review

  • Paolo Zangheri,
  • Tiago Serrenho and
  • Paolo Bertoldi

6 October 2019

In order to achieve the goal of the Paris Agreement and reduce energy consumption there is the need for a behavior change in energy end-users. Many studies have demonstrated that by delivering to energy users customized feedback on their energy consu...

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Energies - ISSN 1996-1073