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1841 Uppsatser om Methanol; SECA; ECA; shipping; exhaust gas emission; alternative marine fuel - Sida 21 av 123

Jämförande kostnadsanalys av retur- och engångsemaballage

This report analyzes disposable packaging and returnable packaging with the methods life cycle analysis and life cycle costs analysis. These two different packaging are analyzed through the company Clas Ohlson?s packaging-flow. To get a picture of how the flow works, a visit at the company and email contact have been done with Clas Ohlson to get relevant informationToday Clas Ohlson has a big flow of articles to the stores without larger variations in the demand, with the exception of autumn, which is when customers start shopping for Christmas. Clas Ohlson?s articles are placed on a pallet and are wrapped into plastic-film for protection and to make sure that nothing will be stolen.

En jämförande studie av fluiddynamiken för olika fluidiseringsmedium i en kallmodell av en 100 kW-anläggning för kemcyklisk förbränning

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

Ha?llbara alternativ inom sjo?farten : En utva?rdering av metanol och va?gkraft som marina drivmedel

Fo?rbra?nning av traditionellt fartygsbra?nsle medfo?r utsla?pp av a?mnen som har negativa effekter pa? miljo?n. Uppkomsten av stra?ngare internationella regler ga?llande utsla?pp fra?n sjo?fartstrafiken kra?ver ett skifte fra?n det konventionella marina bra?nslet tjockolja till alternativ med la?gre utsla?pp. Va?gkraft och metanol a?r tva? mo?jliga alternativ inom sjo?farten som kan uppfylla de internationella regleringarna fo?r utsla?pp, och har i denna studie ja?mfo?rts med tjockolja.

Bostadssektorns koldioxidutsläpp

Energy is an important issue in the current world which significantly affects sustainability and development. Energy generation and use are major sources of CO2 emissions which is one of the most important driving factors in global climate changes. The amount of energy used in house hold section can lead to estimation of the amount of CO2 emitted within this section which subsequently would be a ground to better management and maintaining a sustainable society. This study which is a bachelor?s project in sustainable energy, deals with estimation of CO2 emission from different types of residential houses in Sweden. An extensive literature review on energy use in Sweden by different residential sectors has been conducted.

Reaktiv HIPIMS-beläggning av TiN på vändskär av WC/Co

Binära och ternära övergångsmetallnitrider har blivit väldigt populära för verktygsbeläggningsapplikationer. Hög effekt pulsad magnetronsputtering, HIPIMS, är en ny lovande joniserad PVD metod som använts för magnetron sputtering för att deponera stökiometrisk TiN på WC/Co-substrat. Resultatet har jämförts med konventionell DC-magnetronsputtering (DCms) och DCms och HIPIMS kombinerat. Syftet med den här studien är uppnå täta och jämna TiN-filmer. Beläggningssystemet som använts i detta projekt består av en högvakuumkammare utrustad med en standar plan magnetron med en 150 mm Ti-target.

Kön, politik och makt - Den diskursiva kampen om tolkningsföreträde: empiriskt exempel Feministiskt initiativ

This essay is a discourse and a feminist theoretical analysis that focuses on the alternative discourse that we consider Feminist Initiative to be constitutive of. Our theoretical stance, with base in Laclau and Mouffes discourse theory, builds on the notion that reality is characterised by conflicts between different competing discursive formations and that the social is an endless struggle over the preferential right of interpretation of meaning. More specifically, the essay focuses on the discursive struggle over the meaning of the term politics. It is our understanding that the dominant perception of politics necessarily excludes other understandings, which can according to Eduards, be explained as a consequence of a patriarchal distribution of power that renders the subordination of certain understandings of politics accordingly. Feminist Initiative, as an alternative discourse, can therefore be perceived as a threat to the dominating discourse of politics, which in order to maintain its preferential right of interpretation seek to illegitimatise and depoliticise the politics that the alternative discourse represents.

Textila cylindrar - experiment kring solljusreglering

Working with a three-dimensional shape that adjusts light seemed exciting. Venetian blinds became a basis and source of inspiration in my project. What is a Venetian blind? I arrived at the de?nition ?a surface of angleble pieces for sun adjustment?. From that simpli?ed meaning I started making sketches of what an alternative model could look like.

Energieffektivisering i ett verkstadsföretag : En analys av energibesparande åtgärder samt uppvärmnings- och kylsystems driftkostnader och koldioxidutsläpp

The energy use in a workshop company has been examined in this work in order to find areas for energy efficiency improvement. The combined oil and electricity heating in the company were compared with other alternative heating systems including cooling of the premises in following combinations:Ground source heat pump for heating and coolingDistrict heating and absorption coolingDistrict heating and low temperate surface water coolingEnergy use, operation costs and carbon dioxide emissions were calculated for the current heating systems and the three alternatives including cooling. The ground source heat pump for heating and cooling decreases bought energy with 34 MWh annually compared to current heating only. The district heating and low temperate surface water cooling has the largest reduction of operation cost and carbon dioxide. The operation cost decreases with 42 kSEK and the carbon dioxide with 43 metric ton CO2 annually.

Planerat kärnbränsleförvar i Forsmark : - med fokus på episyenit

It takes a very long time for ionizing radiation of used nuclear fuel toreturn to a natural background level, for this reason one of the requirements for theselection of the location of a repository was that the environment as well people'shealth would be protected from the harmful effect of radioactivity. This requirementmeans that the waste must be isolated in a geological formation. In Sweden therepository will be built in the crystalline bedrock. The location for the Swedish nuclearfuel repository at nearly 500 meters depth at Forsmark in Östhammar was decided 3June 2009. The repository will be located at Söderviken, close to the Forsmarknuclear power plant in a 1.90 billion year old bedrock that will accommodate 12,000tons of spent nuclear fuel.

Framtida inhemska proteinfodermedel i den ekologiska fjädefäproduktionen :

Organic layers and broilers will according to (EEG) no 2092/91 be fed 100 % organic feeds in year 2012, which is expected to present problems associated with the specific protein requirements of poultry. This document aims at describing the feedstuffs that possibly may constitute a part of the solution to these problems. Peas, field beans, naked oats, canola, hempseed and sunflower come out as interesting feedstuffs. Biproducts from the milling and dairy industry together with marine protein supplements may be brought to the fore, provided that the demand for organic products will rise further..

Fairtrade i Karlstad : En undersökning om utbudets utveckling och karlstadsbornas upplevelse av märkningen

It takes a very long time for ionizing radiation of used nuclear fuel toreturn to a natural background level, for this reason one of the requirements for theselection of the location of a repository was that the environment as well people'shealth would be protected from the harmful effect of radioactivity. This requirementmeans that the waste must be isolated in a geological formation. In Sweden therepository will be built in the crystalline bedrock. The location for the Swedish nuclearfuel repository at nearly 500 meters depth at Forsmark in Östhammar was decided 3June 2009. The repository will be located at Söderviken, close to the Forsmarknuclear power plant in a 1.90 billion year old bedrock that will accommodate 12,000tons of spent nuclear fuel.

Skrubbers till sjöss : En studie om utmaningarna med skrubbers för marint bruk

Undersöknings mål har varit att utreda utmaningarna med skrubbers för marint bruk, med avseende på de nya svavelkraven som träder i kraft år 2015. Utmaningarna har och kommer att påverkar de berörda rederiers beslut om vilken metod de ska välja för att nå de nya kraven. För att inhämta information genomfördes intervjuer med två rederier som har eftermonterat skrubbers för att nå de nya målen. Båda rederierna har valt att genomföra ett så kallat pilotprojekt på ett av fartygen i sin flotta för att testa och undersöka skrubbertekniken. Genomförandet av intervjuer valdes för att få fram information om hur rederierna upplevde eftermonteringen av skrubberanläggningen.

Avtryck i glas och kropp : om glasblåsning, teknik och representationer av kvinnokroppen

I am a glassblower and I am a woman. In this project I've been working with alternative representations of the female body, muscles and technology. Mouthblown objects contains traces of body and form representations.I've been using muscle sensors to collect data from my arms while I blow glass. A special has made 3D-models from the collected data and I've blown these viritual objects in glass.My work is based around issues like: What happens when I measure my muscles? Am I (and my process) affected by the data gathering? How can I create alternative representations of the female body? What is the relation between glassblowing, the objects, body and gender?.

Miljösystemanalys av alternativa avloppssystem i ett urbant område ?Svartvattensystem : Skogaberg ? Ett pilotprojekt i Göteborg

Starting point to this Paper is the idea and wish to adapt the society and its different activities to a recycle society. A building area in Göteborg is planned and investigated for such adaptation. In the district named Skogaberg, about 130 households totally are planned from what 20 are blocks of flats. The idea with this project is to constitute an alternative sewage system, a Blackwater system, were the fractions of most nutrients and least pollution are separated, taken care of and utilised. The aim is to get a market and use the nutrients of the organic waste from the household in agriculture use.

Påverkar handel med utsläppsrätter svenska företag?: en studie kring attityd, strategi och konkurrenssituation i företag som berörs av handelssystemet

För att minska utsläppen av koldioxid har länderna inom den europeiska unionen enats om att införa ett system för handel med utsläppsrätter. Handelssystemet infördes 2005 och skall i sin första period pågå fram till 2007. Genom att systemet är marknadsbaserat så bestäms priset på utsläppsrätter genom utbud och efterfrågan på marknaden. Företag som inte innehar tillräckligt med utsläppsrätter måste således köpa utsläppsrätter av andra företag som säljer utsläppsrätter på marknaden. I en tidigare studie anses miljökrav likt handel med utsläppsrätter vara av strategisk natur för företag.

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