Wind Energy
Mostrando 13-24 de 185 artigos, teses e dissertações.
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13. Life Cycle Assessment (LCA) and Wind Power Generation: Application of the Methodology and the Generator to Power System
ABSTRACT Sustainability and economics are current issues in the generation of electricity. The energy matrix is diversified and some forms have stood out, such as wind. Some tools have been developed to improve project efficiency, one of which is Life Cycle Assessment (LCA). This presents solidity when assisting projects financially and environmentally, eval
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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14. Computational Model for Microgeneration Simulation, From Solar and Wind Renewable Sources, With Optimal Allocation of Loads, Electric Vehicle and Energy Storage, In a Residential Electrical Micro Network
Abstract The electrical sector is under constant evolution. One of the areas refers to the consumers that come to be generators, implementing distributed generation, interconnected to a smart grid. This article discusses the improvement of an algorithm, already presented in the literature, to make the best temporal allocation of loads, electric vehicle, stor
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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15. Topoclimate in Morlet, Cross and Coherence Wavelet Analyses in the Brazilian Cerrado
ABSTRACT In recent years, the Traditional Morlet Transform, Cross and Wavelet Coherence have been used as techniques to analyze time series from meteorological and climatic data, obtaining useful information. These techniques were used to study air temperature and relative air humidity, air pressure and wind variables from 2015 to 2017. The data was collect
Floresta Ambient.. Publicado em: 13/09/2018
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16. Sonic anemometry and sediment traps to evaluate the effectiveness of windbreaks in preventing wind erosion
ABSTRACT The present work analyzes the effectiveness of windbreaks against wind erosion through the study of streamline patterns and turbulent flow by means of sonic anemometry and sediment traps. To this end, windbreaks composed of plastic meshes (7.5 m long and 0.7 m tall) were used. Windbreaks are a good means to reduce wind erosion, as they produce a pos
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-12
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17. Green Energy Generation Using FLC Based WECS With Lithium Ion Polymer Batteries
ABSTRACT Green Energy Generation Using Wind energy conversion system is achieved using Lithium Ion Polymer Batteries and Fuzzy logic controller. Presented scheme also provides the constant output power for the stand alone loads like Island, Hills Stations, Ships and Remote locations etc. A fuzzy-logic controller based Wind energy conversion system with perma
Braz. arch. biol. technol.. Publicado em: 23/01/2017
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18. Hourly interaction between wind speed and energy fluxes in Brazilian Wetlands - Mato Grosso - Brazil
ABSTRACT Matter and energy flux dynamics of wetlands are important to understand environmental processes that govern biosphere-atmosphere interactions across ecosystems. This study presents analyses about hourly interaction between wind speed and energy fluxes in Brazilian Wetlands - Mato Grosso - Brazil. This study was conducted in Private Reserve of Natura
An. Acad. Bras. Ciênc.. Publicado em: 01/12/2016
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19. Numerical Study of Wake Characteristics in a Horizontal-Axis Hydrokinetic Turbine
ABSTRACT Over the years most studies on wake characteristics have been devoted to wind turbines, while few works are related to hydrokinetic turbines. Among studies applied to rivers, depth and width are important parameters for a suitable design. In this work, a numerical study of the wake in a horizontal-axis hydrokinetic turbine is performed, where the ma
An. Acad. Bras. Ciênc.. Publicado em: 01/12/2016
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20. Tidal and sub-tidal sea level variability at the northern shelf of the Brazilian Northeast Region
ABSTRACT A characterization of the sea level variability at tidal and sub-tidal frequencies at the northern shore of the Brazilian Northeast shelf for the period 2009-2011 is presented. The sea level data used was obtained from the Permanent Geodetic Tide Network from the Brazilian Institute of Geography and Statistics for the Fortaleza gauge station. Local
An. Acad. Bras. Ciênc.. Publicado em: 25/08/2016
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21. Modeling the reflection of Photosynthetically active radiation in a monodominant floodable forest in the Pantanal of Mato Grosso State using multivariate statistics and neural networks
ABSTRACT The study of radiation entrance and exit dynamics and energy consumption in a system is important for understanding the environmental processes that rule the biosphere-atmosphere interactions of all ecosystems. This study provides an analysis of the interaction of energy in the form of photosynthetically active radiation (PAR) in the Pantanal, a Bra
An. Acad. Bras. Ciênc.. Publicado em: 15/08/2016
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22. Numerical study of the influence of internal heat source in naturally ventilated offices
Abstract The natural ventilation in a building performs a fundamental role in users' welfare and health, when used as a bioclimatic and architectural strategy, it can provide brighter projects. Increasing the indoor air speed ventilation has an important performance maintaining indoor air quality, contributing to thermal interactions between human body and e
Rem: Rev. Esc. Minas. Publicado em: 2016-03
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23. INVESTORS' ASYMMETRIC VIEWS AND THEIR DECISION TO ENTER BRAZIL'S WIND ENERGY SECTOR
Market players' investment decisions sometimes surprise analysts, especially when projects that are less feasible in financial terms enter first in the market, before more viable projects. One possible explanation is that firms have different expectations concerning the future of the market. In this article we use the Option-Games approach for asymmetric duo
Pesqui. Oper.. Publicado em: 2014-08
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24. Foraging strategies of the ant Ectatomma vizottoi (Hymenoptera, Formicidae)
Foraging strategies of the ant Ectatomma vizottoi (Hymenoptera, Formicidae). Foraging activity may be limited by temperature, humidity, radiation, wind, and other abiotic factors, all of which can affect energy costs during foraging. Ectatomma vizottoi's biology has only recently been studied, and no detailed information is available on its foraging patterns
Rev. Bras. entomol.. Publicado em: 13/12/2013