نتایج جستجو برای: renewable energies

تعداد نتایج: 84634  

D. Darvishi Salookolaei, P. Babaei S. Heydari gorji

Due to the reduction of renewable energy resources such as fossil fuels, the energy crisis is one of the most critical issues in today’s world. The application of these resources brings about many environmentalpollutionsthatleadtoglobalwarming. Therefore,variouscountrieshaveattemptedto reducepotentialdamageanduserenewableenergiesbytheintroductionandpromotionofrenewable energies as an essential ...

Journal: :Decision Support Systems 2014
Kuo-Hao Chang

a r t i c l e i n f o Due to the growing concern about climate change and environmental sustainability, hybrid renewable energy system (HRES), which refers to a system that combines several renewable power sources and a conventional power generator to cover the power shortage when the renewable power is insufficient, has gained more and more popularity over the decades. While the HRES is very a...

Journal: :international journal of smart electrical engineering 2015
sadegh etemad nasser mozayani

the use of renewable energy in power generation and sudden changes in load and fault in power transmission lines  may cause a voltage drop in the system and challenge the reliability of the system. one way to compensate the changing nature of renewable energies in the short term without the need to disconnect loads or turn on other plants, is the use of renewable energy storage. the use of ener...

Journal: :international journal of advanced biological and biomedical research 2013
ashkan nabavi-pelesaraei ahmad sadeghzadeh mir hossein payman hassan ghasemi mobtaker

the objectives of this research were to investigate influences of energy inputs and energy forms on output levels and evaluation of co2 emissions for hazelnut production in guilan province of iran. moreover, the sensitivity analysis was done by marginal physical productivity (mpp) method for energy inputs and energy using linear regression. initial data were collected from 120 orchardists in se...

2008
Margarita Mediavilla Luis Javier Miguel Carlos de Castro

This paper describes the model of an industrial society based on fossil fuels whose supply decreases and the society is forced to develop alternative energy sources. It is conceived as an abstract model that captures the basic aspect of such a change, but in a simple and schematic way. Despite this, most of the important dynamics of this problem are included in the model. The results show inter...

2014
Ran Wang Ping Wang Gaoxi Xiao Shimin Gong

An important task of power demand and supply management in microgrids is to maintain a good match between power generation and consumption at the minimum cost. Since the highly fluctuant renewable energies constitute a significant portion of the power resources in microgrids, the microgrid system central controller (MGCC) faces the challenge of effectively utilizing the renewable energies while...

2013
Sina Hamzehlouia Afshin Izadian Sohel Anwar

The utilization of renewable energies as an alternative for fossil fuels is considerably growing due to an increasing environmental concern and exhaustion of fossil fuels [1-3]. Transportation electrification is one way to replace or reduce fossil fuels with renewable energy sources. Several propulsion systems including hybrid electric vehicles and plug in hybrid electric vehicles have been int...

Journal: :Robotics & Automation Engineering Journal 2018

Journal: :The European Physical Journal Special Topics 2014

Journal: :Mathematical Modelling in Civil Engineering 2014

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