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Energies, Volume 7, Issue 10

October 2014 - 31 articles

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Articles (31)

  • Correction
  • Open Access
1 Citations
5,072 Views
2 Pages

23 October 2014

We have found the following error in the authors’ information in this article, which was recently published in Energies [1]. On page 5273, the names of the authors are incorrect; they should be changed from:[...]

  • Article
  • Open Access
43 Citations
9,232 Views
15 Pages

21 October 2014

The charging method of lithium-ion batteries used in electric vehicles (EVs) significantly affects its commercial application. This paper aims to make three contributions to the existing literature. (1) In order to achieve an efficient charging strat...

  • Article
  • Open Access
50 Citations
9,873 Views
25 Pages

21 October 2014

Rotational effects are known to influence severely the aerodynamic performance of the inboard region of rotor blades. The underlying physical mechanisms are however far from being well understood. The present work addresses this problem using Reynold...

  • Article
  • Open Access
23 Citations
7,691 Views
24 Pages

20 October 2014

Desiccant-based air handling units can achieve reductions in greenhouse gas emissions and energy savings with respect to conventional air conditioning systems. Benefits are maximized when they interact with renewable energy technologies, such as sola...

  • Article
  • Open Access
13 Citations
8,946 Views
18 Pages

20 October 2014

In this paper, in order to achieve zero ripple conditions, the use of a ripple mirror (RM) circuit for the boost converter is proposed. The operation modes are studied and steady-state analyses performed to show the merits of the proposed converter....

  • Article
  • Open Access
17 Citations
8,737 Views
32 Pages

17 October 2014

In 2013, two production wells were drilled into a geothermal reservoir on Montserrat, W.I. (West Indies) Drilling results confirmed the main features of a previously developed conceptual model. The results confirm that below ~220 °C there is a negati...

  • Article
  • Open Access
27 Citations
12,033 Views
20 Pages

A Novel Modeling of Molten-Salt Heat Storage Systems in Thermal Solar Power Plants

  • Rogelio Peón Menéndez,
  • Juan Á. Martínez,
  • Miguel J. Prieto,
  • Lourdes Á. Barcia and
  • Juan M. Martín Sánchez

17 October 2014

Many thermal solar power plants use thermal oil as heat transfer fluid, and molten salts as thermal energy storage. Oil absorbs energy from sun light, and transfers it to a water-steam cycle across heat exchangers, to be converted into electric energ...

  • Article
  • Open Access
120 Citations
12,072 Views
27 Pages

16 October 2014

The variations in irradiance produced by changes in cloud cover can cause rapid fluctuations in the power generated by large photovoltaic (PV) plants. As the PV power share in the grid increases, such fluctuations may adversely affect power quality a...

  • Article
  • Open Access
33 Citations
9,242 Views
25 Pages

16 October 2014

Since the penetration level of wind energy is continuously increasing, the negative impact caused by the fluctuation of wind power output needs to be carefully managed. This paper proposes a novel real-time coordinated control algorithm based on a wa...

  • Article
  • Open Access
49 Citations
8,912 Views
20 Pages

Methods for Risk-Based Planning of O&M of Wind Turbines

  • Jannie Sønderkær Nielsen and
  • John Dalsgaard Sørensen

16 October 2014

In order to make wind energy more competitive, the big expenses for operation and maintenance must be reduced. Consistent decisions that minimize the expected costs can be made based on risk-based methods. Such methods have been implemented for maint...

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Energies - ISSN 1996-1073