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Energies, Volume 10, Issue 7

July 2017 - 243 articles

Cover Story: Alternative fuels are an important aspect of transportation and energy production. The study of bioalcohols combustion and pollutant formation in spark ignition power units is essential, especially for direct injection engines. Within this context, and with particle emissions becoming an ever-pressing matter, optical techniques provide substantial insight into local phenomena and constitute a solid background for developing optimized control strategies. View the paper
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Articles (243)

  • Article
  • Open Access
11 Citations
5,364 Views
16 Pages

23 July 2017

Steam-diluted combustion in gas turbine systems is an effective approach to control pollutant emissions and improve the gas turbine efficiency. The primary purpose of the present research is to analyze the influence of steam dilution on the combustio...

  • Article
  • Open Access
5 Citations
3,957 Views
16 Pages

23 July 2017

Current differential protection is the main protection of transmission lines which include multi-circuit lines on the same tower, and whose sensitivity and reliability of differential protection is mainly affected by the distributed capacitive curren...

  • Article
  • Open Access
14 Citations
4,420 Views
12 Pages

22 July 2017

The aim of the paper is to rank the agro-energy regions according to their potentials of biomass production in the Region of Central Macedonia (RCM). For this reason, a model of Multi-Criteria Analysis (MCDA) is developed with the ELimination and Et...

  • Article
  • Open Access
3 Citations
4,940 Views
17 Pages

22 July 2017

The ongoing search for new sources of energy has brought natural gas hydrate (NGH) reservoirs to the forefront of attention in both academia and the industry. The amount of gas reserves trapped within these reservoirs surpasses all of the conventiona...

  • Article
  • Open Access
14 Citations
4,666 Views
20 Pages

22 July 2017

Geological faults are highly developed in the eastern Liaoning Province in China, where Mesozoic granitic intrusions and Archean and Paleoproterozoic metamorphic rocks are widely distributed. Although the heat flow value in eastern Liaoning Province...

  • Article
  • Open Access
55 Citations
6,439 Views
21 Pages

22 July 2017

This paper deals with the energy management strategy (EMS) for an on-board semi-active hybrid energy storage system (HESS) composed of a Li-ion battery (LiB) and ultracapacitor (UC). Considering both the nonlinearity of the semi-active structure and...

  • Article
  • Open Access
6 Citations
5,681 Views
13 Pages

Thermal and Performance Analysis of a Gasification Boiler and Its Energy Efficiency Optimization

  • Jan Valíček,
  • Zuzana Palková,
  • Marta Harničárová,
  • Milena Kušnerová and
  • Ondrej Lukáč

22 July 2017

The purpose of this study was to determine a method for multi-parametric output regulation of a gasification boiler especially designed for heating or for hot water heating in buildings. A new method of regulation is offered, namely more parametric r...

  • Article
  • Open Access
6 Citations
6,136 Views
26 Pages

An Optimization Framework for Investment Evaluation of Complex Renewable Energy Systems

  • David Olave-Rojas,
  • Eduardo Álvarez-Miranda,
  • Alejandro Rodríguez and
  • Claudio Tenreiro

22 July 2017

Enhancing the role of renewable energies in existing power systems is one of the most crucial challenges that society faces today. However, the high variability of their generation potential and the temporal disparity between the demand and the gener...

  • Article
  • Open Access
28 Citations
9,386 Views
20 Pages

Modeling Noise Sources and Propagation in External Gear Pumps

  • Sangbeom Woo,
  • Timothy Opperwall,
  • Andrea Vacca and
  • Manuel Rigosi

22 July 2017

As a key component in power transfer, positive displacement machines often represent the major source of noise in hydraulic systems. Thus, investigation into the sources of noise and discovering strategies to reduce noise is a key part of improving t...

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Energies - ISSN 1996-1073Creative Common CC BY license