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5137 Uppsatser om Energy efficiency; culture-historical value; PV 5.0; TMF Energy - Sida 56 av 343
Logistik för stråbränsle :
Summary
Today energy prices are rising. As a result biomass fuel is getting more and more
interesting. Wood chips is very popular, but also straw from grain production is on the
table. Lunds Energi AB project a combined power and heating plant in Örtofta out of
Lund. Wood chips is meant to be the main energy source, complemented by straw.
In this thesis the transportation of straw for fuel is studied.
Underlag till klimatledningssystem för skolor
The climate issue is a significant question, and the problem is mainly caused by human activities. Everyone can help to counteract the enhanced Greenhouse effect by reducing the amounts of energy they use and by not consuming more products then they need.Schools are some of societies many consumers and therefore contribute to the Greenhouse effect. The School also has an important task; to teach and disseminate knowledge and information about the climate and the environment. According to the Swedish National Agency for Education, Skolverket, must all schools regularly consider the environment and sustainable development throughout the entire education process. Unfortunately, this is not the case for many schools in Sweden today.One of many tools that can be used to coordinate environmental work and initiatives, and also to make it more efficient, is environmental management systems.
Ethanol for Scania's Future - A Scenario Based Analysis
Abstract Title: Ethanol for Scania?s future ? A scenario based analysis Authors: Anna Hansson and Julia Persson Tutors: Annette Cerne ? Department of Business Administration, Lund University Jonas Holmborn ? Head of Advanced Combustion, Engine Development, Scania Lennart Thörnqvist ? Department of Energy Sciences, Faculty of Engineering, Lund University Problem: Oil-based products are the dominating fuels in the transport sector but alternative fuels are currently challenging the world-wide dominance. The large number of alternative fuels that are under development at present makes the future fuel-market impossible to predict. Scania?s ethanol project is associated with a number of uncertainty factors that are beyond the company?s control.
Solceller pa? Uppsalahems fastigheter : Ekonomisk potential fram till 2030
Uppsalahem is the leading housing corporation in Uppsala with its over 160 real estate properties. Uppsalahem is owned by the municipality of Uppsala, which has a climate and energy goal that aims for 100 MW of solar energy to be installed in Uppsala by 2030. The 100 MW goal, combined with Uppsalahem?s environmental policy, is a strong incentive to investigate the possibility of installing PV modules on the many available roof areas that Uppsalahem possesses. The objective of this thesis is to create a foundation for future decisions regarding PV systems for Uppsalahem.
Nyckeltalet - en studie av effektivitetsmätning i insamlingsorganisationer
The study examines how efficiency and effectiveness are measured in charity organizations in Sweden. The rules of Svensk Insamlingskontroll, Årsredovisningslagen and Bokföringslagen make up the accounting framework upon which efficiency and effectiveness are measured in charity organizations. The study is based upon interviews with the sector's main actors: Svensk Insamlingskontroll, Frivilligorganisationernas insamlingsråd, auditors and the charity organizations themselves. The interviews are supplemented by studies of the guidelines issued by Svensk Insamlingskontroll. Today's measure of efficiency is the percentage of a charity organization's income that benefits their goals, called nyckeltalet.
Rakija eller Absolut Vodka? : Några makedoniska mäns tankar angående sina alkoholvanor och sin alkoholkultur
The aim of this essay was to describe what some Macedonian men had to say about their own and the Swedish alcohol culture and which alcohol culture they identify with.I did five qualitative interviews with Macedonian men that had moved to Sweden. Some of the questions that were asked are whether or not age, country and culture is of importance when it comes to the alcohol culture you have? The most important question to be answered is whether or not the Macedonian men had changed their alcohol consumption after moving to Sweden.The answers to the questions and the result of the essay is that there is no ideal type of alcohol culture but that the Macedonian men all agreed that they still drink as their fellow countrymen and they dislike the Swedish way of drinking..
Asymptotiska egenskaper hos vissa kombinatoriska strukturer
In an attempt to develop a more cost-efficient material for solar energy applications, nano-particles of nickel oxide composite in a silikatmatris manufactured with solar gelmethod and studied structurally by electron microscopy. Furthermore, the thin film optical properties characterized by Variable. Angel Spectroscopic Ellipsometry. Sol gelfilms suitability as a selective absorber surface is also analyzed by optical modeling..
Med Lean i bagaget - En studie om Leans förmåga att öka produktiviteten av en bagagehanteringsprocess
Although Lean has received an increased amount of attention in the service context, research still has not established how successfully Lean manages to increase service productivity; since service productivity consists of both efficiency and quality. Research regarding productivity discusses the risk of a tradeoff between efficiency and quality in service production processes. Therefore, this thesis aims to explore if the tradeoff in a production setting with low variability in demand and low customer participation exists, after Lean has been implemented. With a qualitative approach, a case study has been conducted at Scandinavian Airlines Ground Handling to evaluate the effects of Lean in the baggage handling process. The result of the study shows that the tradeoff has not been overcome; efficiency has increased at the expense of quality.
Historieundervisning och digital teknik : Hur historielärare arbetar med digital teknik, historiemedvetande och historisk empati inom undervisningen under 2011.
This essay takes its starting point in the research on digital technology and theories on learning to apply the research on history teaching. The theories on learning from Illeris and Selander are used to find out how the digital technology should be used in upper secondary school, since there is no extensive research on how the new technology should be used in upper secondary school. From that point the essay?s primary goal is to investigate how teachers use digital technology, if they choose a particular study field while working with the technology. Furthermore it investigates whether or not the technology is an appropriate mode of operation when developing abilities such as historical consciousness and historical empathy.
Förståelse för visualiserad elförbrukning i publik miljö : En användbarhetsstudie av touchdisplayen Urban Energy
Hur publika displayer skall utformas och anpassas efter sin miljö på bästa sätt är ännu ett outforskat område. I takt med att miljöfrågor blivit än mer aktuella i dagens samhälle har det också etablerats ett behov av att förändra vårt beteende exempelvis i form av energieffektivisering. Syftet med denna uppsats är att undersöka hur en publik touchdisplay för elvisualisering skall utformas för att vara förståelig, intuitiv och säker från publik genans. En användarstudie i form av en utvärdering av en interaktiv touchdisplay kallad Urban Energy monterad i Göteborg har gjorts under ledning av Interactive Institute Swedish ICT. Touchdisplayens primära syfte är att uppmärksamma förbipasserande på stadens elförbrukning och uppmuntra till energimedvetenhet.I denna studie rekryterades 17 förbipasserande deltagare villiga att testa denna display med hjälp av två uppgifter och en enkät.
Kylbehovet hos ett batteribaserat elenergilager : Med avseende på kyldistribution, drifttemperatur, klimat, isolering och termisk tröghet
Under 2011 började MacBat AB ta fram ett elenergilager kallat Macbat Energy Storage System (MESS), vilket är uppbyggt av 360 stycken tvåvolts bly-syrabatterier inhysta i ett 20 fots container. Då bly-syrabatterier är känsliga för värme är den här studien inriktad på att utreda hur stort kylbehovet blir under olika förutsättningar där kyldistribution, drifttemperatur på batterierna, klimat, isolering och termiska tröghet är varierande parameterar. Det ska även avgöras vilken konfiguration av kyldistribution och isolering som ger lägst kylbehov för de studerade klimaten, vilka är av varmtempererad, arid och tropisk karaktär.För att besvara studiens två mål togs fyra matematiska modeller fram i SIMULINK. Två luftkylda och två vattenkylda där en av varje var isolerad med 100 mm mineralull medan den andra var oisolerad. För samtliga modeller varierades drifttemperaturen mellan 25 ? 35 °C och de studerade klimaten utgjordes av Phnom Phen, Kambodja, Djibouti, Djibouti, Bagdad, Irak samt London, England.
Kan man erfara historia? : Elevers syn på museet som lärandemiljö - om historieundervisning och historiemedvetande
This essay is a case study based on two sources of empirical data, qualitative interviews and responses from a questionnaire, which examines upper secondary school students? attitudes to history teaching in a museum context. The students? answers are further analyzed in relation to the concept of historical consciousness. Thus, history teaching in the museum, from a student perspective, and the students? capacity of expressing a historical consciousness in their answers, constitute the core of this essay.
En lärarutbildning för en mångsidig värld : En historisk genomgång av den interkulturella lärarutbildningen på Södertörns Högskola
The aim of this essay is to describe the historical development of the intercultural teacher training program at Södertörn University in Stockholm. I have also examined how the intercultural teacher training program was started, how and why it became intercultural and how the people in charge of the development of the teacher training program discussed intercultural science. The teacher training program has been an active part of Södertörn University since 1998, but it became intercultural in 2002. I have studied these questions through documents from the Södertörn University archives and literature by the funders of the education. The study shows that the university profile, ambitions and motives have been a key factor in the decision to make the teacher training program at Södertörn a multi-cultural one..
Solceller ? Solen är ju gratis! : En undersökning av huruvida solceller är ett fördelaktigt energisystem med avseende på tekniska och ekonomiska aspekter
This report is a result of a bachelor thesis at the school of Architecture and the Built environment (corresponding to 15 HP) and is written during spring 2012 at the Royal Institute of Technology (KTH) in Stockholm. The Bachelor's essay is based on the design and dimensioning of a house which is located at a predetermined site in Malmo, Sweden.The idea is to construct a house that is appropriate to use for an average Swedish family of four family members. The house is designed in a modern way with respect to ease of access and disabled facilities. The installation that have been considered are heating, ventilation, sanitation and electricity. Construction calculations and material selection are also discussed.Furthermore, a study about photovoltaic cells has been done.
Klippning i klena gallringar : prestationsstudie av Forest ebeaver
Forest ebeaver is, equipped as a bio-energy harvester, approximately four and a half meter long and weigh just over two tons. The main purpose of this report is to find out whether a small machine like Forest ebeaver can be profitable used in early thinning. To find this out a study has been made using the machine to thin in a young pine stand..