15 articles in this issue
Enrico Sciubba
We are pleased to announce the Energies Best Papers awards for 2015. Energies is an open access journal of energy-related scientific research, technology development, and policy and management studies. It publishes reviews, regular research articles, and ... see more
Rogelio Peón Menéndez, Juan Á. Martínez, Miguel J. Prieto, Lourdes Á. Barcia and Juan M. Martín Sánchez
The authors wish to make the following corrections to this paper [1]: Figure 8 on page 6730 is replaced as follows:[...]
Hao Bai, Shihong Miao, Xiaohong Ran and Chang Ye
A virtual power plant takes advantage of interactive communication and energy management systems to optimize and coordinate the dispatch of distributed generation, interruptible loads, energy storage systems and battery switch stations, so as to integrate... see more
Juan Carlos Antolín-Urbaneja, Alain Cortés, Itziar Cabanes, Patxi Estensoro, Joseba Lasa and Marga Marcos
One of the key systems of a Wave Energy Converter for extraction of wave energy is the Power Take-Off (PTO) device. This device transforms the mechanical energy of a moving body into electrical energy. This paper describes the model of an innovative PTO b... see more
Vincenzo Liso, Yingru Zhao, Wenyuan Yang and Mads Pagh Nielsen
In this paper a solid oxide fuel cell (SOFC) system for cogeneration of heat and power integrated with a stratified heat storage tank is studied. The use of a storage tank with thermal stratification allows one to increase the annual operating hours of CH... see more
Anna Laura Pisello
In recent years there has been a growing interest in the development and thermal-energy analysis of passive solutions for reducing building cooling needs and thus improving indoor thermal comfort conditions. In this view, several studies were carried out ... see more
Kwangu Kang, Youngkyun Seo, Daejun Chang, Seong-Gil Kang and Cheol Huh
-
Carlos Alberto Cuvilas, Efthymios Kantarelis and Weihong Yang
Over the last years, the pretreatment of biomass as a source of energy has become one of the most important steps of biomass conversion. In this work the effect of a mild subcritical hydrothermal carbonization of a tropical woody biomass was studied. Resu... see more
Jun Yang, Zhili Zeng, Yufei Tang, Jun Yan, Haibo He and Yunliang Wu
In power systems, although the inertia energy in power sources can partly cover power unbalances caused by load disturbance or renewable energy fluctuation, it is still hard to maintain the frequency deviation within acceptable ranges. However, with the v... see more
Jae-Hyun Han and Young-Cheol Lim
In this study, to achieve the constant current drive and brightness control without a separate pulse width modulation (PWM) converter, a single converter is designed and verified by experiment under the condition of a multiple LED light load with differe... see more
Florian Heberle and Dieter Brüggemann
We present a thermo-economic evaluation of binary power plants based on the Organic Rankine Cycle (ORC) for geothermal power generation. The focus of this study is to analyse if an efficiency increase by using zeotropic mixtures as working fluid overcompe... see more
Jin-Cherng Shyu, Po-Yan Wang, Chien-Liang Lee, Sung-Chun Chang, Tsung-Sheng Sheu, Chun-Hsien Kuo, Kun-Lung Huang and Zi-Yi Yang
An air-breathing direct formic acid microfluidic fuel cell, which had a self-made anode electrode of 10 mg/cm2 Pd loading and 6 mg/cm2 Nafion content, was fabricated and tested. The microfluidic fuel cell was achieved by bonding a PDMS microchannel that w... see more
Timothy Ault, Steven Krahn and Allen Croff
Energy industries account for a significant portion of total rare earth usage, both in the US and worldwide. Rare earth minerals are frequently collocated with naturally occurring radioactive material, imparting an occupational radiological dose during re... see more
Andreas Lemmer, Yuling Chen, Anna-Maria Wonneberger, Frank Graf and Rainer Reimert
Two-stage pressurized anaerobic digestion is a promising technology. This technology integrates in one process biogas production with upgrading and pressure boosting for grid injection. To investigate whether the efficiency of this novel system could be f... see more
Shi Weng Gui, Zhen Jun Lin and Sheng Hua Huang
In the research field of multilevel converters, three-level NPC (neutral-point-clamped) converters, which unfortunately may cause the deviation of the neutral-point voltage of DC-link capacitors, are widely discussed. Theoretically, virtual space vector m... see more