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524 Uppsatser om Combustion of waste - Sida 26 av 35
Carbon Critical Masterplanning tool : klimatpa?verkan fra?n samha?llsplaneringsprojekt
With the climate change issues growing in importance on the social agenda, the field of urban masterplanning is of no exception when it comes to minimizing the carbon footprint in a variety of projects. The aim of this thesis has been to prepare the Carbon Critical Masterplanning tool, a software plugin for carbon dioxide emissions assessment developed by Atkins, to be used in Swedish conditions. The main targets were to improve the areas of the tool associated with energy conversion and renewable energy sources, and to test the tool in a real case. A planned construction of a new campus in Albano, Stockholm was chosen for the pilot study. A 3D model was built in the tool and the carbon footprint was calculated for a variety of combinations for energy supply to the future area.
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.
L?ggning av ett kils?gat br?dgolv
This bachelor thesis contains the findings of an investigation into the laying of wedge sawn wood
flooring.
The advantage of wedge sawn wood flooring is the usage of more material from each board reducing
waste. The boards follow the natural profile of the tree where the root part of the board is wider,
and the top part is narrower. The technique involves placing boards side by side with adjacent boards
in opposite directions. The thick base of one board is neighbored by the narrow top of another, this
creates a pattern of wedges in alternating directions, known as a ?root and top? system.
Existing literature into this type of flooring is sparce.
Termisk hantering av litium-jon- batterier i elektriska drivsystem
The automotive market is currently undergoing a historical change where stricter emission legislations and ever increasing fuel costs have intensified the search for effective alternatives to the conventional internal combustion engine, which has resulted in a substantial trend towards electrification of powertrains. Storage of electrical energy is the fundamental component in this technology where the lithium-ion batteries are currently considered as the most appropriate solution. Lithium-ion batteries, however, as other types of batteries, can only be used efficiently and durably within a specific temperature range.This Master thesis has been carried out in collaboration with Electroengine in Sweden AB, situated in Uppsala, which has an ongoing project regarding development of a modular battery system for electric powertrains. The project is at a stage where an initial prototype has been developed which provides the foundation for this thesis. The study has addressed the battery system performance from a thermal perspective, in order to validate the ability of the system to create a thermally serviceable environment for the lithium-ion battery cells.
Strängluftning av vallfoder : Inverkan på ensilagets torkningförlopp, spill och smörsyratillväxt
When harvesting ley you hope to get a fast drying and a faster harvest. If there is a
system with round bales, you need to have a dry matter close to 45 %. To make this as
fast as possible, there is made a machine which pick up the grass with an pick-up. It
turn the grass over and put it behind the machine (figure 2 and 4). There are few tests
to prove the efficiency of this machine.
Bäst före 2014 : En studie om matsvinn i livsmedelsbutiker
SyfteVårt syfte är att ge en djupare förståelse för det matsvinn som uppstår i livsmedelsbutiker genom att analysera och utreda servicelandskapets, personalens och kundens påverkan på matsvinn. Med koppling till detta syfte har vi valt följande forskningsfråga:På vilka sätt kan livsmedelsbutiker arbeta för att minimera sitt matsvinn med hänsyn till butikernas lönsamhet och kundnöjdhet? MetodDenna uppsats är en kvalitativ studie som haft sin början i ett empiriskt problem som vi ville skapa en djupare förståelse kring, vilket innebär att vår uppsats haft sin början i induktionen. Under processens gång har vi arbetat parallellt med empiri och teori, därför har studien haft ett växelspel mellan induktion och deduktion. Insamlingen av material har skett genom primära och sekundära källor där det empiriska materialet skett genom semistrukturerade intervjuer.SlutsatserI vår arbetsprocess har vi kunnat urskilja att servicelandskapet, personalen och kunden är de faktorer som påverkar matsvinnet inom dagligvaruhandeln.
Hinderbanan - en studie om jämställdhetsarbete och kvinnors förutsättningar inom professionella tjänsteföretag
Although women express a desire to be managers and although they constitute the majority of Sweden's newly graduated academics, they are still heavily underrepresented on senior management level in the Swedish private sector, where men hold as much as 95 % of the top positions. Considering the massive waste of resources that this implies, this thesis sets out to investigate the underlying reasons for the skewed gender distribution on senior management level in two Swedish professional services companies - an industry where the described problem has been palpable. Additionally, the thesis explores the effects of actively working for increased gender equality. With a basis in gender and organization theory, a broad theoretical framework has been compiled and applied to a qualitative case study design. The thesis reveals seven distinct impediments, which together create a parable of an obstacles course, that prevent women from advancing the corporate ladder in the same manner as their male colleagues.
Stadsmöbler för ungdomar :
The title Urban furniture for young people reveals that this
paper handles two central phenomenon in landscape architecture;
the form and content of the urban spaces, respectively
the users and their need for an appropriate outdoor
environment in the city. In this paper youth is referred to as
15-18 year olds and the paper is based on theories of their
physical use of the city?s outdoor environment. Urban furniture
refers to equipment and components in the public room
which becomes furniture when people takes them in to claim
and gives them a meaning and a function that is useful for
the moment. The starting point is that the users, in this case
youths, defi nes urban furniture as something signifi cantly
more than traditional park furniture, bicycle racks and waste
baskets.
This paper aims to investigate how the city?s furniture can be
developed to meet the youths need to see each other, move
and make their marks in the public room.
The theories about how youths uses the city are presented
in the Theory chapter.
Dammsäkerhetsutvärdering samt utformning av dammregister och felrapporteringssystem för svenska gruvdammar
A lot of mine waste rock and tailings arise from all mining processes and have to be stored in an appropriate way. Tailings are deposited in impoundments retained by tailings dams. The objective of tailings dams is to retain the slurry from the mining process and in that way prevent spill into the surroundings that might be harmful for the environment. Tailings dams are often constructed as staged embankments so that construction costs and demand of materials are spread more evenly over the period of deposition.The objective of this thesis has been to compile information about and evaluate events at Swedish tailings dams and also to develop a collective database for all Swedish mining companies for all tailings dams and all events that occur at tailings dams.Information about 60 events at Swedish tailings dams has been gathered and evaluated. The evaluation has been performed by comparison between and analysis of individual parameters and also by use of a multivariate statistical method called PLS.
Designprojektet BEDÅRANDE BARN AV SIN TID - Ett innovationsprojekt om material, traditioner och en arbetsmöbel
ADORABLE CHILD OF ITS TIMEThis text will describe a inovative project about material, traditions and someideas about furniture for work in an home inviroment. The content is partlyabout exploring ancient marine- and textile techniques to find somethinguseful for furniture of the twenty first century. It is also about the designprocess of creating a sustainable piece of furniture that questions the paradigmathicsabout usage and the context about manufacturing furniture.The text will briefly describe the design process and then reason about theresult in a deeper sense. Questions that has been considered from the verybeginning of the project as well as those one stumbled across during theevolution of the work will be objectives for the discussion. The result will bein focus as a foundation for the discussion and also the values and issuesabout that.
Reducering av ledtid genom en värdeflödesanalys En fallstudie på Lammhults Möbel AB
The purpose of this study is to increase the understanding of activities, flows and waste in a company's production process. By performing a value stream analysis, non-value adding activities are identified in a production process and then the suggested improvements that can reduce lead times will be stated. The value-stream mapping identifies the flow of information and the flow of material in a production process and this provides the basis for the identification of non-value adding activities.We conducted the study at Lammhults Möbel AB in Lammhult Sweden, where the production flow of Spira-21 has been investigated. This to identify any non-value adding activities that affect the flow negative and consumes time and money in a non-value adding way.A reasonable approach for the project was taken by studying the methodologies and theories. We conducted interviews and site surveys at Lammhults Möbel AB where the flow of information and material in the production process were investigated.
Utvärderingsmodell för förpackningar och dess hantering i dagligvaruhandeln : ? en jämförelse av ergonomi-, miljö- och logistikparametrar
Companies become more and more aware of the added values of the packaging. A well chosen and developed packaging can reduce the costs for the companies through reduced costs for transports, reduced quantity of waste and discards and increased goodwill for example. The companies? costs for salaries can also be reduced due to the increased packaging handling efficiency and the reduced costs for sick leave, reduced work capacity and rehabilitation etc. that can arise when handling poorly developed products and packaging.
Polletten har inte trillat ner, ännu? Bankernas hållbarhetsredovisning håller inte måttet!
The voluntary none-financial sustainability report has become a trend within accounting. The environmental issues used to be driven by activists only, but lately it has moved in to the general agenda in many companies. Investors are starting to put more attention to the sustainability reporting as it is considered to add value to the company. There are several standard guidelines to be used when producing a sustainability report, one example is the GRI´s Guidelines that takes the following three dimensions in consideration: economy, environment and social. This Guideline is from an international perspective considered to be of good accounting practice (Ljungdahl 2008).
Diversifiering i lantbruksföretag : en litteraturstudie om hur utvecklingsprocessen ser ut i lantbruksbaserade företag som utvecklar nya verksamhetsgrenar
Today´s debate in farming is being focused on tourism, outdoor life and hobbies in the rural areas. This is of interest also for the general public as a way of counteracting the depopulation of the rural areas. Within the last years, the farming has become more technically advanced and hence efficient. This has led to increased production volumes and wider selection of products with lower margins for the farmer as a consequence. When the profitability is reduced, the farmer is faced with the choice of either increasing efficiency or diversification of the business.
Miljö- och hälsorisker med konstgräsplaner
In Sweden today many municipalities and sport clubs chooses to build artificial turfs becauseof the increased period of using the turfs during the year and less maintenance requirementsthan for natural grass fields. What could be problematic with artificial turfs is the rubbergranules used as infill material in the turf matt. The rubber granules are often made fromrecycled tires, which may contain for the human health and the environment, harmful substances.This was the reason why the Swedish Chemicals Agency commissioned a statusreport in 2006 which, among other things, concluded that the environmental and health risksassociated with granules made from recycled tiers in artificial turf fields were small, but thatthere could be a local environmental hazard. The purpose and objective of the risk assessmentwas to identify how artificial turf plans granules can affect recipients in the area closeto the pitches and provide input to reduce the spread of metals and substances harmful forboth human health and the surrounding environment. The work was divided into three parts:(1) the construction of artificial turf pitches and their material content, the spread of granulatesoutside the fields and disposal of artificial turf pitches.