This Master degree project has been performed at the Braviken paper mill on papermachine 53 (PM53) which produces newsprint paper. The current economic situationhas contributed to declining demand for newsprint, which means it is extra important tobe competitive by high energy efficiency. Particularly as energy prices are expected torise when the economic growth returns.One way to increase energy efficiency is by reducing the water use in paper and pulpmills and consequently save energy through reduced heating of water. The thesis's maintask is to evaluate whether a water purification plant (microflotation plant) forpurification of process water in PM 53 is profitable. The microflotation plant enablesreuse of warm process water instead of losing the energy to receiving waters.

The aim of this studie is to describe, analyse and understand the benefits and disadvantages with using digital tools in education. In my qualitative method three primary school teachers were interviewed about how digital tools should be used in educational purposes, also what benefits/disadvantages they could see with the investment of digital tools in their school. I also did observations in two classrooms and interviewed a school politican to get a wider perspective. The collected information identifies that some benefits of using digital tools is the contribution to a more equivalent education, more opportunites for cooperations and that fewer pupils have to struggle with their fine motor skills when producing a text. Some of the disadvantages with using the tools is that they breaks sometimes, it´s easy to get dependent and if something happens (like power outage) it´s unusual that schools have a good an action plan.

Syftet med detta examensarbete är att göra en jämförande studie mellan faktorerna som enligt en teoretisk ram påverkar en miljöinvestering och faktorerna som ingår i ett företags bedömnings-modell. Respondentbolaget begärde i ett tidigt skede att få vara anonymt och benämns därför som Företaget. Det är en multinationell koncern med verksamhet i många skilda branscher, men med fokus på norden och produkter som kan kopplas till lantbruk. Den teoretiska referensramen har sin utgångspunkt i begreppen värde och investering samt hur deras koppling till miljö och miljöinvesteringar för att identifiera de faktorer som påverkar en miljöinvestering. Faktorerna som ingår i den teoretiska referensramen och som jämförs mot respondentbolagets faktorer är:? Investeringens värdetillförsel? Investeringens miljöpåverkan? Hur investeringen påverkar produktionsförutsättningarna? Krav från samhället? KundkravKopplingen däremellan bedöms enligt en femgradig skala.

This thesis aims at determining the heat losses in a property vent stack and its roof valve. Upon request of a company, the vent stack is analysed for possible heat recovering solutions to be implemented, while relining of the drain system is executed and with a suitable payback time for the economic investments. The heat loss calculations are based on data for properties that are located in the Stockholm region, but also easy to change depending on the situation. The calculations are done on pipes made out of cast iron, which still is the most common type of drain pipe in Sweden, and these are the pipes that relining is usually made on. The calculations that needed to take several variables into account have been done in MatlabR2014a and the thermos dynamical properties that were used in those calculations have been extracted from EES.Three different types of heat losses in the vent stack have been taken into consideration in this thesis.

AbstractTitle: Environmental demand solutions - a study within real-estate business.Problem statement:Today, the society stands before a permanent accelerated environmental threat. Companiesbecome increasingly over the environmental problems and more companies look over theiractivity and how it influences the environment. Historical the environmental issue has been forgotten and it is first during the end of 1990 the environmental issue intensive has been noticed. Earlier the environmental work?s high costs was the cause, but now the companies realized the weight and the importance of imposing focus on environment commitments and sees it, as an investment.

Background: Investors have several options to choose from when the goal is to achieve the highest yield at the lowest cost and risk. Stocks are a common investment options, but is also associated with risks. Portfolios are usually constructed with several different assets to reduce the unsystematic risk of investment. Funds are similar to composite stock portfolios, the big difference is that they dealt with in their entirety and investors may not affect the fund's content. The problem remains that whether you choose stocks or mutual funds there is still uncertainty as to how the future will unfold.

This report is a thesis work for a B.Sc. in Forestry exam at the School for Forest Engineers, SLU. The work was an assignment from Sydved Energy AB. The aim of the work was to compare the operational productivity between two kinds of forwarders for extraction of harvesting residues, one forwarder with a special compression device and one ordinary, slightly modified forwarder. Two sites were studied for each forwarder. The study shows that the annual production was about 11,000 m3 higher for the traditional forwarder. The cost for the traditional forwarder was SEK 0.9 lower per m3.

Inledning: Såväl politiker, som media och många andra kritiserar undervisningen av svenska för invandrare (SFI) kraftigt, det diskuteras att invandrarna inte lär sig svenska i önskvärd omfattning och integrationen av de nyinkomna går dåligt. Studien har därför velat undersöka dessa frågor SFI-deltagarnas syn på andraspråksinlärning och deras integration.Syfte: Studien avser att undersöka vad SFI-deltagare anser om SFI:s medverkan till integration och andraspråksinlärning i det svenska samhället.Forskningsfrågor: 1. Vilka diskurser framträder i SFI-deltagarnas konstruktioner av vi och de andra?2. Vad är SFI-deltagarnas syn på SFI:s medverkan till deras integration i samhället?3. Hur har SFI konkret bidragit till SFI-deltagarnas integration, avseende t ex arbete, vänner, kontakter, studieframgång, boende och skola?Metod: Diskursanalys enligt diskurspsykologisk metod.Teori: Den här studien har sin teoretiska förankring i socialkonstruktionism med influenser av postkolonial teori och kritisk teori.Resultat: Antagandet var att bristande språkkunskaper skapar segregation och omvänt, vilket besannades. Sammanfattningsvis kan sägas att informanterna uttryckte en massiv kritik av SFI:s förmåga att hjälpa dem med integrationen och att de även var kritiska mot praktik och arbete och mot den språkträning som de då fick. Men de är inte enbart kritiska till SFI-undervisningen, de ser även positiva effekter av undervisningen.

Cooling down the indoor air can be done in several ways. One way is desiccantcooling which will be used at the Stockholm Arena. This method is used in airhandling units that use temperature changes and moisture fluctuations in the air. Oneof the steps is to add heat during the cooling process in order to reduce the relativehumidity of the exhaust air. The air passes thru an adsorptions rotor which thenabsorbs moisture from the supply air.

The interactive whiteboard (IWB) is to be found in many classrooms in Sweden, and its number is growing rapidly. There is a lack of research of the use of the IWB in Sweden. The Swedish National Agency for Education refers to English research where the investment in the IWB in school is huge. In this study I will investigate how the IWB can be used as a mediating tool in the learning process. My study examines how interaction pattern appears when the teacher teaches with the IWB as a tool.

Sweden has distinct seasons with cold winter and temperatures down to minus 25 ?C andpleasant summers with temperatures above 20 ?C. During spring and autumn there could becomechallenges with precipitation. The diverse climate in Sweden affects many homeowners. For thepeople living in leisure boats and permanent housing boats the seasonal changes are clearlyimpacting their economy and the indoor climate.

In several countries that have been early in the development of wind farms, there is today a second hand market for the used wind turbines. The European Union (EU) has established a waste hierarchy in order to minimize throwaway mentality. The second hand market is a part of this as the steps are to minimize, reuse, recycle, extract energy and landfill.In order to promote the development of renewable energy, there are energy certificates for the producers that provide it, wind power being one type of renewable energy. After 15 years the energy certificates for a specific wind turbine are no longer paid, and after that there are several different scenarios for the wind turbine. The scenarios investigated in this bachelor?s thesis are export of the wind turbine to countries that are not as far along as Sweden in their development towards renewable energy, selling in Sweden to individuals, and recycling of the wind turbine, as it mostly consists of metals and therefore is recyclable.

Due to historically low prices for electricity in Sweden, many small-scale hydropowerplants were closed down. A small-scale power plant has more or less the samemaintenance costs as larger plants, but doesn?t generate as much income. Today?sincreasing price for electricity in combination with a desire for renewable energysources makes small-scale hydropower interesting again.

Abstract: Since the recession caught the market in fall 2008, multiple companies have suffered due to their former aggressive investment behavior. Huge goodwill piles have been collected ready to be doomed by the market. The aim of the study is to investigate equity analysts? consideration of goodwill in a recession market. An empirical study is conducted, based on interviews with ten Swedish equity analysts that follow companies with relevant goodwill status.

Valmets own foundry in Karlstad has during a long period of time had problems being profitable. The goal today is to turn this around. Today there are three different productionlines; engine blocks, Yankeecylinders and components for the wind turbine industry. This master thesis has focused on examining if value stream mapping is a useful tool to use in a foundry, and therefore outside the typical manufacturing industry. The target has also been to evaluate if there is a possibility to improve the flow in the foundry and also the results.During the 20 weeks this work has been done at the foundry data has been collected and analyzed.