Recent applications of the renewable energies

Abstract

Renewables excluding large hydro accounted for 48% of new GW capacity added worldwide in 2014, so the renewable energies increased to 15.2% of world cumulative generation capacity, from 13.8% in 2013. In the EU the new version of the Renewable Energy Directive (RED) distributes the 10% cal. biofuels target into a share for crop-based biofuel (limited at 7% cal.) with the rest to be met with another biofuels and renewable electricity containing multiple counting possibilities. [2,3] For ethanol fuel, more growth could theoretically arrive from an extending of E-10 in EU member states. Unnecessary to discuss that an outlook for a post-2020 biofuels target at the EU level does not valid. [1,5] In our country and world-wide the amount of waste is growing rapidly due to economic development. It is true that the amount of selectively collected waste is also increasing and also the quantities of secondary materials as recycled materials quantities -so they can get back into the manufacturing processhowever it is an important task to dispose of the waste at an up-to-date and environmentally friendly location. The theoretical and practical phenomenon confirms that processing the generated waste by modern European Union-compliant technology systems can be used as alternative energy instead of fossil energy sources to produce electricity and heat.Keywords renewable energies, blending ratio, bioethanol fuel demand, landfill gas, municipal solid waste IntroductionThe research fields at our Technical Institute, on the Engineering Faculty, of the University of Szeged are as follows: the development of the combustion characteristics of the bioethanol propellant and the change, brought on by the utilization ratio, in operating factors, also the garbage lot's extraction of landfill gas and its energetic utilization. During the extraction of the landfill gas, due to change in the methane content values, which influence the energetic utilization, we examined the landfil gas values and later on we plan to use it in our experimental engine.For this project two different manufacturer's bioethanol fuels were assessed with regard to their combustion behaviours by unchanged settings. In order to implement the objectives of research task the comparative analysis were made with two different manufacturer's bioethanol fuels (E85 Sample 1., E85 Sample 2.) and their blends in the engine testing brake [3].Our aims were under the landfill gas test to examine the quality and quantity parameters of landfill gas changes with regard to the average temperature interval, relative humidity, wind speed interval, precipitation and the change in the organic matter content of the waste disposed. The external characteristics of the refuse dump and its environment were relevant such as weather data between which I looked for connections by mathematical statistical methods.The connections between the examinations of the bioethanol and landfill gas are the following: 1.Possible practical applications of energetic utilization, from the perspective of t...

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