2015 5th International Youth Conference on Energy (IYCE)最新文献

Challenges and opportunities for universal access to electricity in the Amazon 亚马逊地区普及电力的挑战和机遇

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-08-06 DOI: 10.1109/IYCE.2015.7180796

R. Muniz, J. A. S. de Sa, B. R. P. Da Rocha

{"title":"Challenges and opportunities for universal access to electricity in the Amazon","authors":"R. Muniz, J. A. S. de Sa, B. R. P. Da Rocha","doi":"10.1109/IYCE.2015.7180796","DOIUrl":"https://doi.org/10.1109/IYCE.2015.7180796","url":null,"abstract":"The Brazilian energy planning has been progressively emphasizing the use of renewable energy sources, however for some initiatives such as the Light for All Program, these energy alternatives are being treated as a secondary activity and difficult to implement. This work aims to analyze how the Brazilian government has been adapting its institutional structure, technology and funding to provide universal access to electricity in remote areas. According to official information, this initiative has proven effective in its first phase, which was developed by the extension of conventional network. However, the study concludes that the program is currently not converges to full compliance with the access to electricity in remote areas in the Amazon and three main challenges were identified. There is a need for i) adjustment of current institutional structures; ii) harmonize technologies to the regional context; and iii) use government funds more effectively. The research points out ways and alternatives to what is being done in isolated systems, with the proposal to contribute to the results of the study for the development of public policies, research projects, meet technology providers and communities in general, aimed at achieving access universal to electricity in remote areas in the Amazon.","PeriodicalId":240209,"journal":{"name":"2015 5th International Youth Conference on Energy (IYCE)","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116397501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Strategic planning in the energy sector of Hungary 匈牙利能源部门的战略规划

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-08-06 DOI: 10.1109/IYCE.2015.7180785

G. Lipcsei, P. Bihari

引用次数: 0

The method development SequEx: Bioavailability of trace elements for biogas production 该方法开发了SequEx:用于沼气生产的微量元素生物利用度

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-08-06 DOI: 10.1109/IYCE.2015.7180753

Á. Fehér, A. Loewen, T. Fritz, M. Nelles

引用次数: 0

Legal and policy instruments to facilitate development for renewable energy 促进可再生能源发展的法律和政策工具

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-08-06 DOI: 10.1109/IYCE.2015.7180764

Chattaporn Harabut

引用次数: 3

Visual approach to assess the environmental impact of overhead transmission lines 评估架空输电线路环境影响的目视方法

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-08-06 DOI: 10.1109/IYCE.2015.7180752

N. Erdmann, P. Schegner

引用次数: 1

Analysis of the image produced by Scheffler paraboloidal concentrator 舍弗勒抛物面聚光器成像的分析

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-05-27 DOI: 10.1109/IYCE.2015.7180746

E. Dib, F. Fiorelli

{"title":"Analysis of the image produced by Scheffler paraboloidal concentrator","authors":"E. Dib, F. Fiorelli","doi":"10.1109/IYCE.2015.7180746","DOIUrl":"https://doi.org/10.1109/IYCE.2015.7180746","url":null,"abstract":"Our purpose is to help projects of receivers for Scheffler concentrators in order to avoid losses of energy at the entrance of thermal radiation absorbers. The Scheffler concentrator is a paraboloidal solar concentrator that works in a two axes track system and, thus, maintains the focal image fixed in its stopped absorber with the variation of the solar declination and azimuth. The image formed by Scheffler concentrator is presented. The reflector geometry is defined by a lateral section of a paraboloid and its reflector has elliptical profile. At equinox, these rim angles are approximately 49.6 and 109.6 degrees from the paraboloid axis. However the tracking system for adjusting to the variation in solar declination causes a change in these rim angles. An analysis of the effect of these variations over the image of the focus, the aperture area to the Sun, and the concentration ratio is performed. The effect of the variations of rim angles was found to cause variations in the size of the focal image of Scheffler reflectors in two axes, and these variations differ among these axes. Were also found that the aperture area can vary twice, and, the concentration ratio, once during the year.","PeriodicalId":240209,"journal":{"name":"2015 5th International Youth Conference on Energy (IYCE)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115446063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Influence of a dead time duration on the input current spectrum of voltage-source active rectifiers 死区时间对电压源型有源整流器输入电流谱的影响

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-05-27 DOI: 10.1109/IYCE.2015.7180775

T. Josefová, V. Kus

引用次数: 4

Smart energy monitoring system with ADE7758 IC 基于ADE7758集成电路的智能能源监测系统

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-05-27 DOI: 10.1109/IYCE.2015.7180759

A. M. F. Guimarães, T. Freitas, H. Griner, T. H. S. de Almeida

引用次数: 8

Determining the energy supply security of Hungary using the S/D Index 利用S/D指数确定匈牙利的能源供应安全

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-05-27 DOI: 10.1109/IYCE.2015.7180778

Matyas Kekes, Lipcsei Gabor

{"title":"Determining the energy supply security of Hungary using the S/D Index","authors":"Matyas Kekes, Lipcsei Gabor","doi":"10.1109/IYCE.2015.7180778","DOIUrl":"https://doi.org/10.1109/IYCE.2015.7180778","url":null,"abstract":"Recently, the topic of energy security has gained a lot of attention due to the increasing political conflicts and economic disagreements in/between primary energy exporting and importing countries. There are various indices and complex methods available (e.g., the Herfindahl-Hirschmann Index, Shannon-Index, Crisis Capability Index and Supply/Demand Index) to estimate the level of energy security of a country/region, allowing for the content of its primary energy mix, the reliability of its own energy sources, and the dependence on import from other countries. The goal of this study is to evaluate the medium and long-term security of energy supply in Hungary with the Supply/Demand Index (S/D). This indicator takes into account all three parts of the energy system: final energy demand, energy conversion and transport and primary energy supply. Throughout the study, the assessment and analysis of these factors and their components is presented in the case of Hungary, finally providing a proper value that describes the status of its energy security, highlighting its weak points. Moreover, a comparison is made with the most recent study for Hungary that was carried out in 2006, so that changes and differences in its former and current energy system are more visible.","PeriodicalId":240209,"journal":{"name":"2015 5th International Youth Conference on Energy (IYCE)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125115496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep geological repository for disposal of nuclear waste in the Czech Republic 捷克共和国用于处置核废料的深层地质储存库

2015 5th International Youth Conference on Energy (IYCE) Pub Date : 2015-05-27 DOI: 10.1109/IYCE.2015.7180790

M. Dvořáková, M. Vencl, T. Becvarikova

{"title":"Deep geological repository for disposal of nuclear waste in the Czech Republic","authors":"M. Dvořáková, M. Vencl, T. Becvarikova","doi":"10.1109/IYCE.2015.7180790","DOIUrl":"https://doi.org/10.1109/IYCE.2015.7180790","url":null,"abstract":"The disposal of spent nuclear fuel and other radioactive waste originating mainly in the nuclear energy sector is a topic with huge social importance. The basic requirement of repositories for radioactive waste is the prevention of the escape of radionuclides into the biosphere. The safe disposal of spent nuclear fuel in deep geological repositories (DGR) is based on the so-called multi-barrier concept the first barrier of which consists of the waste package; the second barrier is made up of impermeable clay and the third is provided by the surrounding stable rock environment at a depth of 500m below the earth's surface. DGRs are considered nuclear facilities and will feature both above-ground and underground premises. Hence such facilities are subject to the relevant requirements as set out in nuclear and mining legislation, underground construction engineering regulations and environmental considerations. The Czech Radioactive Waste Repository Authority (SURAO) is responsible for coordinating the huge range of activities which will eventually lead to the commissioning of the Czech DGR. Two variants concerning the technical design of the DGR, at different stages of development, are currently being considered.","PeriodicalId":240209,"journal":{"name":"2015 5th International Youth Conference on Energy (IYCE)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126657048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2