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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Podnikatelský záměr v oblasti obnovitelných zdrojů energie / Business Project in the Area of Renewable Resources of Energy

Kerndl, Michal January 2009 (has links)
The aim of my thesis, which is called „Business project in the area of renewable energy resources“, is to analyze business opportunities in the area of renewable energy resources, which have been highly actual and discussed recently, whether in term of benefit for environment or in connection with international problem of shortness in energy resources. Result of this thesis is, on the basis of the analysis, to define recommendations in the form of optimal proposal for realization. The thesis is engaged in description of current state in the area of the renewable energy resources, their utilization in practice and consequential proposals for realization including project financial plan. The thesis is also engaged in possibilities of state budget and EU grants use.
52

Der Einsatz von alaska bei der Entwicklung von Windkraftanlagen

Freudenberg, Heiko 22 July 2016 (has links) (PDF)
Die Software alaska ist zunächst ein allgemeines Werkzeug zur Modellierung und Simulation der Dynamik mechanischer/mechatronischer Systeme. alaska wird am Institut ür Mechatronik in Chemnitz entwickelt. Mit dem Erweiterungsmodul alaska/Wind erhält alaska Funktionalitäten die erforderlich sind, um das dynamische Verhalten von Windkraftanlagen (WKA) mit dem Ziel zu simulieren, die resultierenden Belastungen zu ermitteln. Bestandteile von alaska/Wind sind u.a. Komponenten zu Beschreibung der aerodynamischen Umgebungsbedingungen und der Berechnung der daraus resultierenden, an der WKA angreifenden Windkräfte sowie ein Basis-WKA-Simulationsmodell. Inhalt des Vortrages ist es zu zeigen, wie dieses Basis-Simulationsmodell vom Anwender, also vom Entwickler/Hersteller von Windkraftanlagen, an seine spezifischen Anforderungen angepasst wird, wie es in seinen Produktentstehungsprozess eingebunden wird und wie mit dem Einsatz der alaska- Komponente alaska/DC (DistributedComputation) weitestgehend automatisch auf der Basis mehrerer Tausend Simulationsrechnungen Design-treibende Belastungen ermittelt werden.
53

Multikriterieanalys för identifiering av lämpliga områden för etablering av vindkraftverk

Söderholm, Emma, Nordsell, Lise-Lott January 2008 (has links)
<p>Idag fokuseras det politiska intresset på klimatfrågor och det visade sig inte minst när Nobels fredpris tilldelades Panel of Climate Change och Al Gore år 2007. Klimatfrågor med fokusering på bland annat energifrågan, biologisk mångfald och hållbar utveckling kommer att vara nyckelfrågor under andra halvan av 2009 när Sverige är ordförandeland för EU.</p><p>Bidragande orsaker till klimatförändringar är mänskliga utsläpp av växthusgaser. Arbetet med att minska utsläppen sker bland annat genom Kyotoprotokollet, där 160 stater deltar, innehållande bindande åtaganden att minska utsläppen med 5 % fram till 2012. I och med arbetet med att minska växthusgaser är främjandet och utvecklandet av förnyelsebar energi en viktig del, särskilt i form av vindkraft. Kommunernas fysiska planering spelar en viktig roll i detta, t ex i framtagandet av lämpliga områden för etablering av vindkraft.</p><p>Gävle kommun används som fallstudie och detta arbete ska underlätta förfarandet att ta fram bra beslutsunderlag som varje planerare behöver göra. Syftet med denna studie är att underlätta och effektivisera den fysiska planeringens arbete och väcka medvetenhet för nyttan av GIS. Först sker en sammanställning av en del data som finns tillgängliga på Gävle kommun. Huvudsyftet är att sedan utföra en multikriterieanalys för att hitta lämpliga områden för vindkraftsetablering utifrån sammanställt data. Vindkraft valdes för att det är en viktig del i anpassningsarbetet för att motverka klimatförändringar och har en hög prioritet.</p><p>Kriterier och motstående intressen till vindkraftsetablering sattes upp och utifrån det utfördes sedan en multikriterieanalys. En fältstudie utfördes för att bedöma resultatets tillförlitlighet och hur resultatet överensstämmer med verkligheten. Resultatet påvisade att det fanns många lämpliga områden för vindkraftsetablering i Gävle kommun och att god överensstämmelse fanns med tidigare framtagna riksintresseområden för vindkraftverk. Fältstudierna visade även på god överensstämmelse med resultatet och verkligheten.</p><p>Multikriterieanalys är ett kraftfullt verktyg som ger tydliga resultat. Kunskap om metodiken och ämnet, t ex om den ska hitta lämpliga områden för vindkraft krävs god kännedom om vindkraft samt kunskap om data krävs för att metoden ska vara lätt att genomföra. Den ger ett begripligt resultat som har stor genomslagskraft och som det är lätt att ta till sig. Metoden är en väldigt användbar metod för att ta fram bra beslutsunderlag i ett planarbete.</p> / <p>The political focus is today set on questions concerning climate changes and this was proved when Panel of Climate Change and Al Gore were awarded with the Nobel Prize for Peace in the year of 2007. Sweden is the presidency country of the European Union in the second half of 2009 and the main questions are going to be about climate targeted on energy, biodiversity and sustainable development.</p><p>Some of the things that cause the climate changes are the emission of greenhouse gases made by the human being. To reduce the emission the goal with the Kyoto protocol, accepted by 160 countries, is set to reduce the emission by 5% until 2012. To achieve the goal the development and promoting of renewable energy has an important role, especially wind power. With the aid of physical planning, municipalities have an important role e.g. through compiling basic data for decision-making where suitable areas for wind power are pointed out.</p><p>Gävle municipality is used as a case study and one of the goals with this thesis is to facilitate the decision that is needed to be made by them who are working with physical planning. Another goal is to awake the awareness of geographical information system potential to be a powerful tool to make physical planning more efficient. As a first part a compilation is made of the data that are accessible in the databases of Gävle municipality. The main issue is to make a multicriteria analysis to find suitable areas for wind power on the compiled data. The theme of wind power was chosen because it is an important part of a sustainable development due to climate changes.</p><p>Criteria and counteractive interests to wind power were identified and used in a multicriteria analysis. A field study was made to control the result from the multicriteria analysis against reality and there were a good agreement. The result of the multicriteria analysis indicated that there are several suitable areas for wind power within the area of Gävle municipality and this was verified with the areas identified by the County Administration of Gävleborg.</p><p>Multicriteria analysis is a powerful tool that gives a result that is easy to understand. Knowledge about the method and subject, e.g. finding areas suitable for wind power good knowledge about wind power and data is demanded to make the method easy to perform.</p><p>The method gives a comprehensible result with a penetrating power and is easy to understand. The method is very useful to compile basic data for decision-making in physical planning.</p>
54

Niagara Prospects

Wong, Johnathan January 2009 (has links)
This thesis proposes a fresh engagement with the idea of the archaic as a means to recover and replenish some of the lost vitality suffered during what William Barrett characterized the modern period as “the gigantic externalization of life.” An introductory essay examines how the related ideas of the archaic, the primal, and the prehistoric have at key moments provided a source of creative energy for the arts of the last century. Collections of found material, and several photographic studies document the city of Niagara Falls—icon of American pop culture and faded relic of romanticism. The photographs present an alternative to the world of the touristic snapshot, and address the questions: In the age of simulation how do we know what is real anymore? Can we learn to see with archaic eyes?
55

Multikriterieanalys för identifiering av lämpliga områden för etablering av vindkraftverk

Söderholm, Emma, Nordsell, Lise-Lott January 2008 (has links)
Idag fokuseras det politiska intresset på klimatfrågor och det visade sig inte minst när Nobels fredpris tilldelades Panel of Climate Change och Al Gore år 2007. Klimatfrågor med fokusering på bland annat energifrågan, biologisk mångfald och hållbar utveckling kommer att vara nyckelfrågor under andra halvan av 2009 när Sverige är ordförandeland för EU. Bidragande orsaker till klimatförändringar är mänskliga utsläpp av växthusgaser. Arbetet med att minska utsläppen sker bland annat genom Kyotoprotokollet, där 160 stater deltar, innehållande bindande åtaganden att minska utsläppen med 5 % fram till 2012. I och med arbetet med att minska växthusgaser är främjandet och utvecklandet av förnyelsebar energi en viktig del, särskilt i form av vindkraft. Kommunernas fysiska planering spelar en viktig roll i detta, t ex i framtagandet av lämpliga områden för etablering av vindkraft. Gävle kommun används som fallstudie och detta arbete ska underlätta förfarandet att ta fram bra beslutsunderlag som varje planerare behöver göra. Syftet med denna studie är att underlätta och effektivisera den fysiska planeringens arbete och väcka medvetenhet för nyttan av GIS. Först sker en sammanställning av en del data som finns tillgängliga på Gävle kommun. Huvudsyftet är att sedan utföra en multikriterieanalys för att hitta lämpliga områden för vindkraftsetablering utifrån sammanställt data. Vindkraft valdes för att det är en viktig del i anpassningsarbetet för att motverka klimatförändringar och har en hög prioritet. Kriterier och motstående intressen till vindkraftsetablering sattes upp och utifrån det utfördes sedan en multikriterieanalys. En fältstudie utfördes för att bedöma resultatets tillförlitlighet och hur resultatet överensstämmer med verkligheten. Resultatet påvisade att det fanns många lämpliga områden för vindkraftsetablering i Gävle kommun och att god överensstämmelse fanns med tidigare framtagna riksintresseområden för vindkraftverk. Fältstudierna visade även på god överensstämmelse med resultatet och verkligheten. Multikriterieanalys är ett kraftfullt verktyg som ger tydliga resultat. Kunskap om metodiken och ämnet, t ex om den ska hitta lämpliga områden för vindkraft krävs god kännedom om vindkraft samt kunskap om data krävs för att metoden ska vara lätt att genomföra. Den ger ett begripligt resultat som har stor genomslagskraft och som det är lätt att ta till sig. Metoden är en väldigt användbar metod för att ta fram bra beslutsunderlag i ett planarbete. / The political focus is today set on questions concerning climate changes and this was proved when Panel of Climate Change and Al Gore were awarded with the Nobel Prize for Peace in the year of 2007. Sweden is the presidency country of the European Union in the second half of 2009 and the main questions are going to be about climate targeted on energy, biodiversity and sustainable development. Some of the things that cause the climate changes are the emission of greenhouse gases made by the human being. To reduce the emission the goal with the Kyoto protocol, accepted by 160 countries, is set to reduce the emission by 5% until 2012. To achieve the goal the development and promoting of renewable energy has an important role, especially wind power. With the aid of physical planning, municipalities have an important role e.g. through compiling basic data for decision-making where suitable areas for wind power are pointed out. Gävle municipality is used as a case study and one of the goals with this thesis is to facilitate the decision that is needed to be made by them who are working with physical planning. Another goal is to awake the awareness of geographical information system potential to be a powerful tool to make physical planning more efficient. As a first part a compilation is made of the data that are accessible in the databases of Gävle municipality. The main issue is to make a multicriteria analysis to find suitable areas for wind power on the compiled data. The theme of wind power was chosen because it is an important part of a sustainable development due to climate changes. Criteria and counteractive interests to wind power were identified and used in a multicriteria analysis. A field study was made to control the result from the multicriteria analysis against reality and there were a good agreement. The result of the multicriteria analysis indicated that there are several suitable areas for wind power within the area of Gävle municipality and this was verified with the areas identified by the County Administration of Gävleborg. Multicriteria analysis is a powerful tool that gives a result that is easy to understand. Knowledge about the method and subject, e.g. finding areas suitable for wind power good knowledge about wind power and data is demanded to make the method easy to perform. The method gives a comprehensible result with a penetrating power and is easy to understand. The method is very useful to compile basic data for decision-making in physical planning.
56

Niagara Prospects

Wong, Johnathan January 2009 (has links)
This thesis proposes a fresh engagement with the idea of the archaic as a means to recover and replenish some of the lost vitality suffered during what William Barrett characterized the modern period as “the gigantic externalization of life.” An introductory essay examines how the related ideas of the archaic, the primal, and the prehistoric have at key moments provided a source of creative energy for the arts of the last century. Collections of found material, and several photographic studies document the city of Niagara Falls—icon of American pop culture and faded relic of romanticism. The photographs present an alternative to the world of the touristic snapshot, and address the questions: In the age of simulation how do we know what is real anymore? Can we learn to see with archaic eyes?
57

A Study of The Management Performance of Taiwan Power Company and also The Manipulation Situation of Human Resources of Nuclear and Fire Station in Taiwan Power Company

Lee, Ming-Dao 21 August 2003 (has links)
Power business is a somewhat special business¡CIt has no stocks. Because of this, power business is classified into inherent monopoly business for a very long time before. Nowadays, most governments of developed countries changed their point of view; they modified the relevant law and began to allow more than two power companies to run on the same power supply area since few years ago. Taiwan's government is affected by this thinking and doing in 1990 and adopted it later since 1994. Firstly, they permitted private power stations built by private enterprises in1995. Since then, domestic power business is treated as a ¡§step by step open¡¨ business. Different from what other Independent Power Station (So called I.P.P.)has done, Taiwan Power Company has adopted the policy of allocating their maintenance crew in each nuclear and fire power station instead of establishing a dependent sub-maintenance company or outsourcing maintenance job to other power station maintenance contractor as the other I.P.P.s. has done¡C This is indeed a quite controversy policy even inside the Taiwan Power Company. But most of the members and representatives of workers Union are against any relocating crew or changing policy and even stronger. The policy of privatizing Taiwan Power Company and open competition of electricity-providing is determined definitely by R.O.C. government, still the progress of it is not very clear to the relevant stakeholder. However, the competence of Taiwan Power Company will be needed much more than ever. And the operation cost and management performance is therefore a major and important factor to the position of Taiwan Power Company in the future electricity market. This research is intended to study only benefit of cost-down and efficiency-rising element of the electricity power company and its nuclear and power station, it concerns nothing to do with any social topics such as working right of the crew , opinion and attitude of the work union and the like.
58

Geoterminės energijos panaudojimas pastatų grupės energijos poreikiams tenkinti / Analysis of Geothermal Energy Usage for a Group of Buildings

Poškaitė, Viktorija 22 June 2011 (has links)
Darbe projektuojama geoterminė jėgainė, kuri tiekia šiluminę energiją pastatų grupei. Darbą sudaro įvadas, keturi skyriai, išvados ir rekomendacijos bei literatūros sąrašas. Įvade pateikta nagrinėjamos temos problema, aktualumas, darbo tikslai ir uždaviniai bei praktinė darbo vertė. Pirmajame skyriuje pateikiami projektiniai duomenys pastatų grupei Tauragės miesto pavyzdžiu, aprašomi geoterminės energijos tipai bei jos panaudojimas pasaulyje ir Lietuvoje. Antrajame skyriuje analizuojamas Lietuvos geoterminis laukas bei parenkama projektuojamos geoterminės stoties vieta. Analizuojamos UAB „Geoterma“ iškilusios problemos ir nustatomos jų priežastys. Trečiajame skyriuje atliekamas metinio šilumos poreikio modeliavimas bei trijų energijos šaltinių techninis vertinimas kompiuterine programa EnergyPRO. Ketvirtajame skyriuje energijos šaltiniai vertinami ekonominiu ir aplinkosauginiu požiūriu, taip pat atliekama jautrumo analizė bei aprašomos prielaidos, naudotos darbe. Išanalizavus pastatų grupės energijos poreikius, atlikus techninius energijos šaltinių vertinimus ir reikalingus skaičiavimus šilumos gamybos galimybėms įvertinti, teikiamos išvados ir rekomendacijos. Pridedama: trijų energijos šaltinių schemos. Darbo apimtis – 65 p. be priedų, 35 pav., 15 lent., 19 literatūros šaltinių. / There is designed geothermal power plant that supplies thermal energy group of buildings in this paper. The work consists of four chapters, conclusions, recommendations and references. The introduction is about the problem of the topic, the relevance, the work goals, objectives and the practical value of the work. The first chapter provides design details of buildings group using Taurage's city example, describes the types of geothermal energy and its use in the world and in Lithuania. The second chapter analyzes the Lithuanian geothermal area, also the place for designed geothermal station is selected. Analyze the problems encountered in Geoterma company and identify their causes. There is modeling an annual heat demand and performed the three technical evaluation of energy sources with a computer program EnergyPRO. There is assessed the economic sources from energy and environmental point of view in the fourth chapter. As well sensitivity analysis is produced and description of the assumptions used in the workplace. After the analysis of the building group's energy needs and performed technical evaluations and calculations of energy sources necessary to evaluate the heat generation ability, findings and recommendations are provided. Enclosure: energy sources schemes. Working volume - 65 pages without additives, 35 pic., 15 tables, 19 references.
59

An investigation on the impact of procurement quality management in a nuclear power station

Gumede, Nomfusi Leticia January 2011 (has links)
Thesis (MTech (Quality))--Cape Peninsula University of Technology, 2011. / This research project in Procurement Quality Engineering was conducted at a Nuclear Power Generation Company in the Western Cape, South Africa. During the past decade, quality management has become increasingly recognised as highly desirable for all organisations at all levels. All organisations, to varied degrees, can benefit from the application of quality management skills in some parts of their daily operations. The research project will investigate the impact or effect of late deliveries of spares on the operational cost of the organisation. The organisation is not aware what impact the delivery of spares has on operating costs. Against the above background, the problem to be researched within the ambit of this dissertation reads as follows: "Poor product and / or service delivery from Vendors and / or Suppliers have an adverse impact on the output of the Procurement Quality Department" .The primary research objectives of this study are the following: ~ To emphasise the importance of quality within the supply chain. ~ To investigate the impact of non-conforming items delivered to a Nuclear Power Plant. ~ To determine measures which can be put in place to improve communication between suppliers, vendors, buyers and procurement quality engineering. ~ To determine or investigate the cost of poor quality in the organisation. ~ To improve the quality of goods and services through the application of a quality management system within the supply chain. The research method used in this research project involved both qualitative and quantitative research processes. Questionnaires and statistical techniques were used to analyse the data, and to draw conclusions and recommend possible areas for improvement. The research methodology falls within the ambit of a case study.
60

Stanovení objemové aktivity nuklidů záření gama ve vzorcích životního prostředí a posouzení vlivu provozu Jaderné elektrárny Temelín na výslednou aktivitu / Determination of volume activity of gamma nuclide in environmental samples and assessment of influence of NPP Temelin on actual measured activity

DAVIDOVÁ, Lenka January 2007 (has links)
In this thesis I target the assesment of a volume activity of gamma ray nuclides in the environment and the examination of the operation the Nuclear Power Station (NPS) Temelín in term of emitting the gamma ray nuclides and their environmental impact. There were collected data of several sorts of environmental samples for statistical analysis. The activity of gamma ray nuclides released by nuclear power plants to the environment after its initiation was compared to the activity of gamma ray nuclides contained it the environment before the initiation of the NPS. It was chosen five exemplary samples - , aerosoles, sediments, milk, soil and surface moisture, which have been scanning in years 1995 and 2005. In these samples, that have sufficient amount of data (sorts of milk, aerosoles and surface moisture) so the statistical analysis was relevant, it was proved, by the non-parametrical Mann-Whitney statistical testing, that there were no statistical difference between the data before and after the initiation of the NPS. The environmental impact wasn´t demonstrated. In these samples, that haven´t sufficient amount of data (sediments and soil), they were also tested (parametrical t. test) and it was proved that there were no statistical difference between the data before and after the initiation of the NPS. Because of very low quality of the testing, we have to use the box plot to ascertain the influence of NPS. In these plots the environmental impact wasn´t demonstrated as well.

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