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Energies, Volume 12, Issue 7

April-1 2019 - 224 articles

Cover Story: Optimizing the reactant gas supply and product water removal in hydrogen fuel cells leads to higher performance and efficiency. This work investigates the interaction between water and gas in a fuel cell using porous metal foam as a flow-field in a numerical and ex-situ study, demonstrating the importance of surface tension, the contact angle and pore size. View this paper.
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Articles (224)

  • Article
  • Open Access
55 Citations
6,939 Views
13 Pages

11 April 2019

Instabilities in immiscible displacement along fluid−fluid displacement fronts in porous media are undesirable in many natural and engineered displacement processes such as geological carbon sequestration and enhanced oil recovery. In this stud...

  • Article
  • Open Access
4 Citations
4,160 Views
13 Pages

11 April 2019

The thermal energy storage (TES) system stores the district heating (DH) water when the heating load is low. Since a TES system stores heat at atmospheric pressure, the DH water temperature of 115 °C has to be lowered to less than 100 °C. The...

  • Article
  • Open Access
68 Citations
7,613 Views
17 Pages

Innovative Policies for Energy Efficiency and the Use of Renewables in Households

  • Wadim Strielkowski,
  • Elena Volkova,
  • Luidmila Pushkareva and
  • Dalia Streimikiene

11 April 2019

Renewable energy sources (RES) are gradually becoming one of the key elements in the process of achieving energy efficiency worldwide. This trend can be observed in many developed Western economies—for example, in the United States, as well as...

  • Article
  • Open Access
9 Citations
3,507 Views
19 Pages

11 April 2019

Finite control set-model predictive torque control (FCS-MPTC) depends on the system parameters and the weight coefficients setting. At the same time, since the actual load disturbance is unavoidable, the model parameters are not matched, and there is...

  • Article
  • Open Access
54 Citations
9,249 Views
17 Pages

11 April 2019

In recent years, the Chinese government has vigorously promoted the development of concentrating solar power (CSP) technology. For the commercialization of CSP technology, economically competitive costs of electricity generation is one of the major o...

  • Article
  • Open Access
86 Citations
17,692 Views
36 Pages

The Role of Open Access Data in Geospatial Electrification Planning and the Achievement of SDG7. An OnSSET-Based Case Study for Malawi

  • Alexandros Korkovelos,
  • Babak Khavari,
  • Andreas Sahlberg,
  • Mark Howells and
  • Christopher Arderne

11 April 2019

Achieving universal access to electricity is a development challenge many countries are currently battling with. The advancement of information technology has, among others, vastly improved the availability of geographic data and information. That, i...

  • Article
  • Open Access
39 Citations
6,379 Views
20 Pages

11 April 2019

A deep neural network-based approach of energy demand modeling of electric vehicles (EV) is proposed in this paper. The model-based prediction of energy demand is based on driving cycle time series used as a model input, which is properly preprocesse...

  • Article
  • Open Access
12 Citations
6,880 Views
26 Pages

Modelling and Evaluation of Waste Heat Recovery Systems in the Case of a Heavy-Duty Diesel Engine

  • Amin Mahmoudzadeh Andwari,
  • Apostolos Pesyridis,
  • Vahid Esfahanian,
  • Ali Salavati-Zadeh and
  • Alireza Hajialimohammadi

11 April 2019

In the present study, the effects of Organic Rankine Cycle (ORC) and turbo-compound (T/C) system integration on a heavy-duty diesel engine (HDDE) is investigated. An inline six-cylinder turbocharged 11.5 liter compression ignition (CI) engine employi...

  • Article
  • Open Access
9 Citations
3,936 Views
13 Pages

A Generalised Multifrequency PWM Strategy for Dual Three-Phase Voltage Source Converters

  • Jose A. Riveros,
  • Joel Prieto,
  • Marco Rivera,
  • Sergio Toledo and
  • Raúl Gregor

11 April 2019

Pulse width modulation (PWM) strategies for the control of asymmetrical six-phase drives have been widely studied since the beginning of this century. Nevertheless, space vector modulation (SVM) techniques with multifrequency voltage injection for th...

  • Article
  • Open Access
17 Citations
8,702 Views
22 Pages

Distributed Economic Power Dispatch and Bus Voltage Control for Droop-Controlled DC Microgrids

  • Zhiping Cheng,
  • Zhongwen Li,
  • Jing Liang,
  • Jinfeng Gao,
  • Jikai Si and
  • Shuhui Li

11 April 2019

This paper proposes a distributed economic power dispatch (EPD) and bus voltage control solution for droop-controlled DC microgrids. For the proposed solution, a local power controller and a local voltage controller are added for each distributed gen...

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Energies - ISSN 1996-1073