Narrow search
Showing 161 - 170 of 92,206
Cover Image
LaNi<sub>5</sub>-Assisted Hydrogenation of MgNi<sub>2</sub> in the Hybrid Structures of La<sub>1.09</sub>Mg<sub>1.91</sub>Ni<sub>9</sub>D<sub>9.5</sub> and La<sub>0.91</sub>Mg<sub>...
Denys, Roman V.; Yartys, Volodymyr A.; Gray, Evan MacA.; … - In: Energies 8 (2015) 4, pp. 3198-3211
This work focused on the high pressure PCT and<i> in situ</i> neutron powder diffraction studies of the LaMg<sub>2</sub>Ni<sub>9</sub>-H<sub>2</sub> (D<sub>2</sub>) system at pressures up to 1,000 bar. LaMg<sub>2</sub>Ni<sub>9</sub> alloy was prepared by a powder metallurgy route from the LaNi<sub>9</sub> alloy precursor and Mg powder. Two La<sub>3−x</sub>Mg<sub>x</sub>Ni<sub>9</sub> samples with slightly...
Persistent link: https://www.econbiz.de/10011265468
Cover Image
Life-Cycle Energy and GHG Emissions of Forest Biomass Harvest and Transport for Biofuel Production in Michigan
Zhang, Fengli; Johnson, Dana M.; Wang, Jinjiang - In: Energies 8 (2015) 4, pp. 3258-3271
renewable energy production. Ethanol production from renewable woody biomass, which could be a substitute for gasoline, has seen … increased interest. This study analysed energy use and greenhouse gas emission impacts on the forest biomass supply chain … research focused on improving biomass recovery efficiency and truck fuel economy further reduced GHG emissions and energy …
Persistent link: https://www.econbiz.de/10011265469
Cover Image
Nearshore Tests of the Tidal Compensation System for Point-Absorbing Wave Energy Converters
Castellucci, Valeria; Abrahamsson, Johan; Kamf, Tobias; … - In: Energies 8 (2015) 4, pp. 3272-3291
The power production of the linear generator wave energy converter developed at Uppsala University is affected by …
Persistent link: https://www.econbiz.de/10011265470
Cover Image
The Influence of the Heat Source Temperature on the Multivane Expander Output Power in an Organic Rankine Cycle (ORC) System
Kolasiński, Piotr - In: Energies 8 (2015) 5, pp. 3351-3369
Organic Rankine Cycle (ORC) power systems are nowadays an option for local and domestic cogeneration of heat and electric power. Very interesting are micropower systems for heat recovery from low potential (40–90 °C) waste and renewable heat sources. Designing an ORC system dedicated to heat...
Persistent link: https://www.econbiz.de/10011265954
Cover Image
Fuzzy Controller for a Voltage-Regulated Solar-Powered MPPT System for Hybrid Power System Applications
Shiau, Jaw-Kuen; Wei, Yu-Chen; Lee, Min-Yi - In: Energies 8 (2015) 5, pp. 3292-3312
This paper presents the design of a fuzzy-logic-based voltage-regulated solar power maximum power point tracking (MPPT) system for applications involving hybrid power systems. The system contains a solar power system and battery as the primary and secondary power sources, respectively. The solar...
Persistent link: https://www.econbiz.de/10011265955
Cover Image
An Electro-Thermal Analysis of a Variable-Speed Doubly-Fed Induction Generator in a Wind Turbine
Qiu, Yingning; Zhang, Wenxiu; Cao, Mengnan; Feng, Yanhui; … - In: Energies 8 (2015) 5, pp. 3386-3402
This paper focuses on the electro-thermal analysis of a doubly-fed induction generator (DFIG) in a wind turbine (WT) with gear transmission configuration. The study of the thermal mechanism plays an important role in the development of cost-effective fault diagnostic techniques, design for...
Persistent link: https://www.econbiz.de/10011265956
Cover Image
Energetic and Economic Assessment of Pipe Network Effects on Unused Energy Source System Performance in Large-Scale Horticulture Facilities
Lee, Jae Ho; Hyun, In Tak; Yoon, Yeo Beom; Lee, Kwang Ho; … - In: Energies 8 (2015) 5, pp. 3328-3350
introduction of more reliable and environmentally-friendly alternative energy sources has become urgent and the same trend is found … in large-scale horticulture facilities. In this study, among many alternative energy sources, we investigated the … reserves and the potential of various different unused energy sources which have infinite potential, but are nowadays wasted …
Persistent link: https://www.econbiz.de/10011265957
Cover Image
Effects of Design/Operating Parameters and Physical Properties on Slag Thickness and Heat Transfer during Coal Gasification
Ye, Insoo; Oh, Junho; Ryu, Changkook - In: Energies 8 (2015) 5, pp. 3370-3385
The behaviors of the slag layers formed by the deposition of molten ash onto the wall are important for the operation of entrained coal gasifiers. In this study, the effects of design/operation parameters and slag properties on the slag behaviors were assessed in a commercial coal gasifier using...
Persistent link: https://www.econbiz.de/10011265958
Cover Image
A Novel Hybrid-Flux Magnetic Gear and Its Performance Analysis Using the 3-D Finite Element Method
Chen, Yiduan; Fu, Weinong - In: Energies 8 (2015) 5, pp. 3313-3327
This paper presents a novel hybrid-flux magnetic gear, which integrates a transverse-flux magnetic gear and an axial-flux magnetic gear into a single unit. Compared to its conventional counterparts, the proposed magnetic gear transmits a relatively high torque density. When compared to the...
Persistent link: https://www.econbiz.de/10011265959
Cover Image
Comprehensive Characterization of Napier Grass as a Feedstock for Thermochemical Conversion
Mohammed, Isah Y.; Abakr, Yousif A.; Kazi, Feroz K.; … - In: Energies 8 (2015) 5, pp. 3403-3417
Study on Napier grass leaf (NGL), stem (NGS) and leaf and stem (NGT) was carried out. Proximate, ultimate and structural analyses were evaluated. Functional groups and crystalline components in the biomass were examined. Pyrolysis study was conducted in a thermogravimetric analyzer under...
Persistent link: https://www.econbiz.de/10011265960