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1594 Uppsatser om Plant site - Sida 59 av 107

Simulator för el- och värmeproduktion : påverkan på ekonomi och miljö

In this project a simulator has been developed (in C++) with the purpose of illustrating how changes in environmental regulations, tax levels and other policy measures affect the composition of an energy system. The aim of the project was to investigate how energy companies? investment strategies are affected when changes in economic and environmental conditions occur. A standard scenario has been created based on current Swedish conditions, but the user can create new scenarios and set parameters freely. The user is tasked with building power plants to supply the city/region with district heating and electricity during a pre-set number of years. When the simulation is finished the result is graded in the following categories: economy, environment and quality. To evaluate the simulator three scenarios were created (?early 20th century?, ?reduced environmental control? and ?future?) in addition to the standard scenario and these were compared with each other by examining how a select group of power plants perform under the given conditions.

Fanfictionskrivande på engelska : Språkinlärning i en nätbaserad praxisgemenskap?

The purpose of this study was to investigate the English writing activities of young Swedes on the site FanFiction.net to determine what type of differences were perceived between this activity and the writing activities taking place in upper secondary English courses, what effects fan fiction had on their English skills as well as what possibilities were perceived in regards to using fan fiction as a tool of learning. Methods used include an interview study along with a textual analysis to determine changes in grammatical complexity, errors and mistakes. Results indicate that partaking in fan fiction-related communities of practice in English can potentially improve language skills. Results also showed that informants valued interaction and practical language use, largely perceiving the formal teaching of English as lacking in opportunities for practical, contextually relevant and creative language use. However, introducing fan fiction and its practices of peer-reviewing in a formal educational setting was also perceived as risky, at the same time as there existed a sense of optimism that the fan fiction format and its practices could both be used to facilitate learning..

Återvinning av industriell restvärme som värdeskapande process : En fallstudie på SSAB EMEA i Borlänge

The industrial sector accounts for a large share of greenhouse gas emissions. To reduce its negative impact on the environment is crucial in the quest for a sustainable future. In discussions of the industrial sector's impact on the environment guidelines have been highlighted as a tool to assist the industries in their efforts to change the relationship between the consumption of energy and production. This by improving energy efficiency and a shift to the best available technology. During the past 30 years the steel industry has reduced its energy consumption per ton of steel produced by 50 percent.

Klassificering av processutrustning - en grund för riskbaserat underhåll

In this report a systematic working procedure for risk classification of processing equipment from a maintenance point of view is described. How this system has been worked out is also an important part of the report. The classification system is adapted for use in complex processing plants. Preemraff Göteborg has been subject for the underlying study and application of the system.The system aims to give a good overview of the maintenance related risks at the plant. Furthermore, the analysis result is a good motivation for the suggested maintenance activities and as motivation for extended or decreased maintenance resources in total.

När tippen blir toppen -En studie om soptippars omvandling : Hur blir de en tillgång och för vem?

A high degree of urbanization with growing cities has raised a need of transforming closed landfill sites for giving them new uses. This study aims to investigate how old landfills can be re-used, what has lead to the new uses, and for what and whom the transformed site will be an asset. The method used is a case study of four different landfills in Stockholm county, Sweden. The case study is analyzed in the light of former studies regarding re-use of degraded urban areas, so called brownfields, and in particular studies and reports of landfill re-use. The result indicates that old landfill sites is identified as an area with possible values if transformed properly, in the case study area especially as green structure and recreation areas.

Massbalansmodellering av fosfor i ett åländskt kustområde : en utredning om lokaliseringen av Lotsbroverkets utloppsledning

This report is commissioned by the Water and Sewage Agency in The City of Mariehamn, Åland. The basic aim is to investigate positive or negative effects of a relocation of the sewage pipe from a wastewater treatment plant, Lotsbroverket. The environmental licence of Lotsbroverket is to be revised and The Environmental Appeal Board at Åland?s Government and Administrative Board has made demands that several possible locations in an outer water area should be examined. The present location of the sewage pipe is in Svibyviken, which has been classified as an ?inner water area?.The objective of this work is to study to which extent the nutrient loading from Lotsbroverket influence the environmental conditions in Svibyviken, and to investigate the suitability of different locations of the wastewater pipe from Lotsbroverket.The way a coastal area looks, i.e., its morphometry, determines to a large extent its ecological characteristics.

Gestaltning av boendelandskapet i gränsen mellan stad och land : exemplet Norränga i Lund

This is a 20 credit Master thesis within the landscape architecture education at the Institute for Landscape Planning at the Swedish University of Agricultural Sciences at Alnarp. Norränga is situated on the fringe of the city of Lund, east of the existing district of Linero.The city planning office of Lund municipality has come up with a ?in-depth comprehensive plan? for the exploatation of the eastern area of Lund. The plan concerns an area of 1035 square kilometre which contains at least 1500 nya buildings, two schools, primaryschools, stores and bus station for local bus traffic and the new bus line - Lundalänken. The townplan is inspired from the historical Square block city with defined street system. The municipality has visions of what the green areas should consist of.

Miljöoptimera avfallsindustrin i Sverige : - återvinn restprodukten gips

One of the most common ways to produce heat and electricity in Europe today is by the incineration of waste or combustion of coal. These materials can be very sulfurous and during combustion sulfur dioxide is produced. This is an environmental and health related toxic substance which is why power plants have strict regulations on removing it from the flue gas. Sulfur dioxide is removed from the flue gas by adding a limestone reagent. The sulfur dioxide reacts with the limestone and the synthetic product obtained is ?Flue Gas Desulfurization gypsum?.

Metod för dosoptimering av digitalt detektorsystem i klinisk drift

The county of Dalarna is at present carrying through a process of digitalization where traditional x-ray film is being replaced with digital detectors. Earlier used methods for dose optimization turned out not being sufficient. This report presents a method to harmonize dose levels between x- ray sites equipped with Fujifilm imaging plate systems. An exposure index, S, related to the dose level of the examination is computed to every x-ray image. S turned out to be inversely proportional to the detector dose used at the examination.

Lämna din kommentar här? : En kvantitativ undersökning av aftonbladets kommentarsfunktion

This study compares different articles on aftonbladet.se and the availability of comment fields on the articles. It is not possible to comment all of them and we examined which you could and which you could not comment on. The study?s purpose is to examine how well the comment fields on aftonbladet.se take advantage of the opportunity to create a deliberative discussion that the public may take part of. This study looks at what subject matters it is possible to comment on and if there are any statistical correlations between those subjects that you can?t. This study analyses 250 articles on the news site aftonbladet.se with a total of eleven variables between the 26 of November and the 7 of December.

Att främja social hållbarhet i gröna miljöer : En fallstudie av ett projekt i Upplands Väsby

AbstractIn my study I have investigated how a constructed outdoor green environment can beused, managed and how it works. The study also investigates the concept of socialsustainability, where, for example, civil dialogue is a method to promote this. Thisinvestigation mainly gives account for the inhabitants viewpoint but also a gardenersperspective. The study focuses on the planning process of the study object, what theoutcome has been and how the users of the green environment, think about the result. Inthe process there has been a strong concern of involving the residents and others usingthe area.

Kloning av möjlig promotorsekvens uppströms kloritdismutas i Ideonella dechloratans.

Perchlorate and chlorate are naturally occurring in the atmosphere, from here it sediments into groundwater and soil. The pollution is increased by discharges of perchlorate and chlorate from agriculture and paper mills. Bacteria capable of reducing perchlorate and chlorate to chloride and oxygen can be used to get rid of these contaminants. However an anaerobic environment needs to be sustained in order for this reaction to be used. For this reduction to work in an aerobic environment as well, a greater knowledge of the reducing enzymes, regulating factors and their corresponding genes is needed.

Finns det någon här som kan ha en teori om vad det hela kan bero på? : En netnografisk undersökning av diskussionsforumet på träningssajten Funbeat

The purpose of this study is to explore the Swedish site Funbeat which is a space dedicated to people who share an interest in exercising in general, and running in particular. By applying a netnographic analysis, I will investigate if Funbeat matches the criteria of a participatory culture and how the members manage to establish a collective intelligence within the community. In order to achieve this, I will analyze the interactivity between the participants which occurs in discussion threads concerning injuries related to running, in the sites discussion forum. The results will then be discussed in relation to previous research within the field for participatory culture, collective intelligence and interactivity.The outcome of the study revealed that Funbeat can be regarded as very good example of a participatory culture. By each member sharing their individual knowledge in matters regarding injuries, a collective intelligence was established.

Stabilisering av process

Calesco Foil AB is a manufacturer of thin flexible circuits for heating or electric conduction.The plant is located in Kolbäck, Sweden.One of the company?s products, the conducting polymer pasta is in present situationunpredictable. Unpredictable in the way that the same type of heater shows differentresistance, depending on which time they have been produced. The desired repetitivelyprocess is almost non-existing.The aim of this master thesis is to primary identify those parameters that effects theresistance, observe and if possible to perform tests on them. The results from this analysisstand as base for recommendations to achieve a repetitive and standardized printing process.The results and the observations from the tests indicate that a repetitive process is possible toachieve.

E-böcker och bibliotek. En diskussion kring den digitala beståndsutvecklingens möte med en gryende e-boksmarknad

In Scandinavia the general idea of the Bronze Age society is that it was organised as chiefdoms. The model for what they looked like is taken from the anthropological studies of the Polynesian chiefdoms. The aim of my study is to investigate a Scandinavian Bronze Age feature, known as cairns mainly containing fire-cracked stone. This is compared with how people in different Polynesian chiefdoms, looked at similar remain. This is done to get a background for new ways of interpretation of such remains.

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