Fjärrvärme är idag den vanligaste formen av fastighetsuppvärmning i Sverige. Förutom värmeanläggningar som byggts just för ändamålet att leverera fjärrvärme har pappers- och massaindustrin blivit en betydande aktör på marknaden i de orter där industrin finns. BillerudKorsnäs massa- och pappersbruk på Gruvön i Grums kommun levererar fjärrvärme till kommunen och till det intilliggande sågverket. Syftet med projektet är att genom kartläggning av Gruvöns sekundärvärmesystem på barrsulfatlinjen belysa effektiviseringsmöjligheter med en ökad fjärrvärmeleverans som följd.  Målet är att upprätta en simuleringsmodell i programmet Wingems och med hjälp av den se vad dessa effektiviseringsmöjligheter kan leda till i form av ökad fjärrvärmeleverans. Metoden i arbetet har utgått från att kartlägga energiflöden till två vattencisterner på barrsulfatlinjens sekundärvärmesystem. Driftdata för vattenflöden i sekundärvärmesystemet har inhämtats i form av flödesstorlek och temperatur, vilka har legat till grund för en simuleringsmodell i Wingems. Sekundärvärmesystemet på barrsulfatlinjen består av en ljumvatten-cistern, en hetvatten-cistern och ett antal värmeväxlare och kondensorer.Ett av de identifierade problemenen med systemet är att temperaturen i ljumvatten-cistern är högre än den borde.

The study investigates questions and considerations emerging when stone in historic buildings needs to be replaced. The focus is on the surface treatment of stone in sandstone façades in pre-industrial buildings. That means buildings constructed by traditional methods and craftsmanship without the use of modern technology.The research issue originates from the extensive stonework that is planned for the façades of the Stockholm Palace. The project includes the replacement of large quantities of damaged stone to newly cut stone. This raises the questions about the use of modern and rational methods for surface treatment on the replacement stone.

During Spring semester 2011, Linda Engstrom and Malin Heder performed ?Golden Ratio?, a thesis which included 22.5 hp. The thesis followed the syllabus for the Degree Project for degree of Bachelor of Science in Innovation and Design Engineering (MSGC12) which was a unit in the Innovation and Design Engineering program within the Faculty of Technology and Science at Karlstad University.The client was Crem International AB, a company located in Åmotfors that develops the design, manufactures and markets coffee machines. The supervisor at the company has been Peter Larsson and supervisor at Karlstad University has been Monica Jakobsson. Examiner for the thesis has been Professor Fredrik Thuvander at the Faculty of Technology and Science at Karlstad University.Crem International AB controls a patent, representing a new technology to streamline and minimize use of energy during the coffee preparation and results in a good coffee quality.

Traditionally, mining has been performed mechanically with implementation ofyesterdays (and older) data. Several mining companies have started to useautonomous technology and robotics in the production areas although the harshmining environments make it unsuitable for today's electronic equipment. Despite allthe obstacles along the way of digitization, there seems to be no end in sight as thisdevelopment continues. This thesis focuses on what the mining industry is aiming forand why the mining companies are interested in these technologies. The actors of themining industry can be found to have a vision for the future mine, a production with ahigher degree of digitization and resemblances to a factory.

The Rya power plant in Borås produces district heating, district cooling and electricity. The plant is owned by Borås Energi och Miljö AB and is run by Dalkia Facility Management AB.In order to get the best heat exchange from the district hot water a pair of twin pumps and a turbine circuit pump are used as return pumps. Turbine circuit pumps are used to increase the pressure through the heat exchangers at the power plant. The pumps are in use when the flow is over 2 000 m3 h-1 and during the summer when re-cooling is used to improve the effectivens of the heat boilers.Since the pumps, that are parallel connected, rotating at a fixed rate per minute, the pressure is regulated with regulating valves. This report shows that during the 4,300 hours that the pumps where in use, energy corresponding to 590 MWh was wasted.

During Spring semester 2011, Linda Engstrom and Malin Heder performed ?Golden Ratio?, a thesis which included 22.5 hp. The thesis followed the syllabus for the Degree Project for degree of Bachelor of Science in Innovation and Design Engineering (MSGC12) which was a unit in the Innovation and Design Engineering program within the Faculty of Technology and Science at Karlstad University.The client was Crem International AB, a company located in Åmotfors that develops the design, manufactures and markets coffee machines. The supervisor at the company has been Peter Larsson and supervisor at Karlstad University has been Monica Jakobsson. Examiner for the thesis has been Professor Fredrik Thuvander at the Faculty of Technology and Science at Karlstad University.Crem International AB controls a patent, representing a new technology to streamline and minimize use of energy during the coffee preparation and results in a good coffee quality.

En människa har en viss mängd kapacitet för att utföra uppgifter. Om uppgifterna blir för svåra eller för många, det vill säga om den mentala arbetsbelastningen blir för hög, går det inte längre att klara av alla uppgifter och prioritering av de viktigaste uppgifterna blir nödvändigt. Piloter behöver ofta ta in och bearbeta en stor mängd information under instrumentflygning. Ofta måste en del av uppgifterna utföras samtidigt och på begränsad tid. Syftet med examensarbetet är att, med hjälp av en subjektiv mätmetod undersöka vilka moment under instrumentflygövningar som medför störst respektive minst mental arbetsbelastning.

During Spring semester 2011, Linda Engstrom and Malin Heder performed ?Golden Ratio?, a thesis which included 22.5 hp. The thesis followed the syllabus for the Degree Project for degree of Bachelor of Science in Innovation and Design Engineering (MSGC12) which was a unit in the Innovation and Design Engineering program within the Faculty of Technology and Science at Karlstad University.The client was Crem International AB, a company located in Åmotfors that develops the design, manufactures and markets coffee machines. The supervisor at the company has been Peter Larsson and supervisor at Karlstad University has been Monica Jakobsson. Examiner for the thesis has been Professor Fredrik Thuvander at the Faculty of Technology and Science at Karlstad University.Crem International AB controls a patent, representing a new technology to streamline and minimize use of energy during the coffee preparation and results in a good coffee quality.

This paper is a research review in the realm of censorship systems andfiltering systems. It applies ethical considerations to the creation of censorshipsystems bringing forward discussion on the ethics of technology with thepurpose of limiting access to information.There is active research being done in the area of automatic content filteringand censorship systems. These are systems that can filter out undesiredmaterial, typically from the Internet, automatically. Used in some nations,many schools and even mandated in some libraries there are many ethicalquestions raised concerning censorship and access to information.Part of the review concerns the level of accuracy of these systems presentedby researchers in the field and the different approaches used. Reviewedarticles centre around automatic content classification and filtering ofpotentially harmful materials with regards to minors while some relate tocensorship technology in a wider sense.Results show a general lack of discussion concerning the ethics of thetechnology in the research reviewed.

ERP system is the information technology that has had the biggest impact in companies? development and way of working in today?s world. ERP system is divided in several applications with a modular software design that allow people in every department in a company to store and retrieve information accurately and in real-time. This master thesis investigates attitudes toward ERP systems among business organisations and ERP suppliers with the overall purpose of analysing to which extent a new ERP system will bring change in the business process. The purpose of this thesis is to make a survey of attitudes toward ERP systems among business organisations and ERP suppliers.

An emerging trend within the construction industry is the expectation of the customer to experience and sense the product, maybe even in a customized manner. The latter trend would extend the necessity of incorporating not only function and aesthetics, but also perception and sensation. To meet this trend while at the same time improve the productivity the use of information technology such as BIM and technical platforms has increased in construction projects. Nevertheless, in spite of large investments, the construction industry has not managed to increase the effectiveness and productivity as much as other industries. Evident is that successful use of information technology depend on the integration and collaboration of various experts in a continuous and dynamic process.

Evertiles är ett spel producerat av Olle Lundahl, Liselotte Heimdahl, Tobias Oldegren och Dan Sjödahl. Vårt mål med spelet var att vi ville göra ett onlinespel centrerat kring att spelaren skulle samla på saker och att spelare skulle mäta sina prestationer mot varandra för att se vem som är bäst. Grundidéen var att vi skulle ha en färdig spelvärld där spelare skulle gå runt och döda monster för att få saker. Idéen utvecklades snart till att vi skulle ha en värld som skapade sig själv genom slumpmässig generering, och med andra spelelement som innebar att det skulle finnas mer att göra än att döda monster. I slutprodukten finns en potentiellt, näst intill, oändlig värld och möjligheter för spelarna att bygga egna städer. Denna rapport kommer detaljera produktionen av spelet, från konceptstadiet tills dess att projekttiden var slut. Våra tankar om projektets gång, och detaljer om våra procedurer, återfinns i både reflektionsdelen, som är majoriteten av denna rapport, samt i våra personliga reflektioner..

This project aims to investigate whether algae can be used for biodiesel production in Italy. Algaes are a good option since they are fast growing and do not occupy arable land. The aspects that have been considered are growing, harvesting, which algae strain that is most suitable, extraction of oil, the production of biodiesel and where in Italy this could be possible due to climate. Cost? and energy calculations have been made to investigate if biodiesel produced from algae would be profitable. During the production of biodiesel there are several residues obtained. When the oil has been extracted from the algae, biogas is produced from the residual biomass by anaerobic digestion and then the electricity that can be produced is supplied to the production of biodiesel.

Mediation of fiction has always been one of the main tasks of the public library. The focus on information technology is often seen as a threat and competitor to this task. But technology can also offer new ways to mediate fiction, and the aim of this thesis is to examine how library websites and blogs can be used for this purpose. The research questions are:? What forms of fiction mediating material exist on library websites and blogs?? How is the fiction mediating material presented?? Are there any differences between the fiction mediating working methods on websites and blogs compared with those in physical libraries?The thesis is based on a qualitative content analysis of eight Swedish public library websites and three blogs, and on a theoretical frame work including literature and research on mediation of fiction, library websites and blogs, web design and usability.

Near Field Communication, NFC, is a short-range wireless communication technology that enables data exchange between devices in a secure way. A NFC phone has the potential to enable the convergence of wallet, phone and keys, but as many other technological innovations, the launch is struggling. We have discovered that technological innovation is only the first step. For an innovation to be adapted, there need to be business model innovation too. Many actors form the ecosystem of NFC and the business model for each service is still an unsolved problem.