Energy efficiency is important both to reduce costs and to reduce greenhouse gas emissions in the atmosphere. Reducing costs will also help maintain business competitiveness.Scania in Södertälje is a company where the optimization of energy use is an ongoing and continual process. One area with potential to make energy and cost savings is the effectiveness of the ventilation systems in offices and industrial premises at Scania. During the summer months an increased demand for cooling occurs, leading to increased ventilation and a peak in district cooling system usage. Sorptive cooling is a technology where the supplied air is cooled by applying external heat.

The thermal response of a borehole field is often described by non?dimensional response factors called gfunctions.The g?function was firstly generated as a numerical solution based on SBM (Superposition BoreholeModel). An analytical approach, the FLS (Finite Line Source), is also accepted for generating the g?function. In thiswork the potential to numerically produce g?functions is studied for circular borehole fields using the commercialsoftware COMSOL.

The aim of this paper is to examine whether the theory of cosmopolitan democracy provides a satisfactory solution to the boundary problem in democratic theory. I argue that David Held's version of cosmopolitan democracy rests on two incompatibleprinciples: the all-affected principle and the all-inclusive principle. However, the theory does not need to presuppose both these principles; it requires only one of them.Furthermore, I try to show that both of these principles fail to provide an adequate solution to the boundary problem. The all-inclusive principle suggests that all citizens of the world should be included in a global democratic unit. I argue that such an ideal is not desirable since it conflicts with the principle of subsidiarity and withdraws from regional political communities their sovereignty.

Studies show that older is an increased proportion patients in hospital and that it is a patient group that can be difficult to communicate with because of older patients' often multiple disease picture. Relatives to the patient can be help for caregivers in the communication and the care of the patient. The aim with the study was to examine relative's experience of participation, meeting/support, accessibility and information on a geriatrics rehabilitation care unit. The study had a descriptive design and was designed as a questionnaire study. It was implemented on one geriatrics rehabilitation care unit on the countryside in central Sweden, belong to Uppsala University hospital.

This essay is about the asylum and immigration politics within the EU. Due to the heavy criticism the EU has been exposed to from among others different kind of human rights organizations I have become interested to find out what kind of asylum and migration politics right now is being formed by the member states of the union. Thus the purpose is also to see if the EU is creating a policy within this area that intends to live up to the human rights obligations.My overall research question is:Which ideas characterize the asylum and immigration politics within the EU?The theoretical perspectives of universalism and particularism are used as two analytical tools in order to understand the phenomenon I am investigating and to identify its characterizing ideas. In my essay universalism and particularism are used as opposite ideal types.

AN EVALUATION OF EFFA-VÄSTERS PARENT PROGRAMME FOR PARENTS WITH CHILDREN 2-4 YEARS- A qualitative and quantitative research focused on content, effects and implementationAuthors: Fritz, Jesper & Johansson, LinaSupervisor: Koutakis, NikolausÖrebro UniversityAcademy of Law, psychology and social workSocial Work ProgramSocial Work 41-60 pointsC-essay, 15 pointsAutumn term 2008AbstractThis study is written on commission by The Unit for prevention which is a part of the Social welfare Services in the district of Örebro. The social work practice carried out by the unit is based on universal prevention, which includes providing parent programmes. The aim in this study is to describe and evaluate the EFFA-Väster parent programme, which has been compiled by social workers working at the unit, with regard to the content, effects and implementation of the program. The study is based on a non-experimental inquiry of an experimental group which has been subjected to a pre- and post test. Further, observations has been made of every program session to examine whether the program is implemented in accordance with the intention and how the program is received by the participants.

In today?s society climate change has grown to one of the largest global issues. To reduce emissions of greenhouse gases, large changes of the energy system are required. An increasingly popular solution is investments in local production of renewable energy resources like wind, solar or geothermal power. The following report examines the possibility for implementing a solar power plant on the new hospital Nya Karolinska Solna. Two different technologies for extraction of solar energy has been studied, solar thermal collectors  to meet the need of heating and solar cells to satisfy the need for electricity linked to operating the hospital building.

Leisure boats of today have a lot of electronics that needs battery power to work. In additionto that electric propulsion systems have gotten more popular lately, which further increasesthe demand for high battery capacity. The batteries used are mostly lead-acid batteries and toget the most out of the batteries it is important to treat them right. To optimize the electricsystem it is important to have knowledge of how the batteries and the electric motor are usedand which factors affect e.g. efficiency and recharging.A new electric drive that can replace old diesel engines is being developed and needs testingand evaluation.

The demand for environmental assessments on buildings and energy consumption is increasing as well as the energy performance requirements for buildings. At the same time it is increasingly common with self-producers of heat and electricity generation.The main purpose with this master thesis is to investigate how time resolution affects the environmental assessment of energy consumption in office buildings connected to district heating (DH). Environmental assessments were done with both attributional LCA and consequential LCA with system expansion.Fortum´s DH system in Stockholm was analyzed and district heating production was simulated in a Matlab-model. Greenhouse gas (GHG) emissions for the production were calculated. The heat demand of the office Gångaren 16 in Stockholm was simulated in IDA ICE.

Simulation is a vital tool during development of JAS 39 Gripen, since money and time can be saved.The Auxiliary and Emergency Power System, AEPS, is a subsystem of the secondary power system in Gripen. It has the function of providing the aircraft with electrical and hydraulical power before activation and after deactivation of the main engine. The system also functions as backup in case of a safety critical problem in the main power supply system. The system basically consists of a control unit and an auxiliary gearbox. The gearbox is driven by an air turbine.

At the moment in central Täby there are small district heating network operated by Fortum Heat. The distribution network has an annual heat demand of about 70 GWh, which is supported by the network's two plants, Galten and Farmen. Täby as a region is rapidly growing and there are grand plans to develop the area. Estimated market potential for a future district heating expansion in Täby is very high and as early as in 2007 Täby decided to invest in a large-scale expansion. In autumn 2009 Täby did a procurement process, known as the ?Täby initiative?, to find a partner that could implement those expansion plans. To secure a cheap basic production the partner also need to build a power plant at Hagby recycling center. Despite high interest during initial state of the process, only one procurement offer were received and Täby suspended the contract in March the following year.

För att tillgodose den studerande KTH byggnadens framtida krav kommer det befintliga ventilationssystemet att bytas ut. Två olika möjliga värmeåtervinningssystem har jämförts ur fjärrvärmebehovssynpunkt. Det befintliga systemet med vattenburen batterivärmeväxlare har en låg värmeåtervinningsgrad och Akademiska Hus önskar system med högre värmeåtervinning. I byggnaden har roterande värmeväxlare och frånluftsvärmepump för uppvärmning av tilluften jämförts. Då värmeåtervinning från dessa system inte är tillräckligt kommer fjärrvärme att används.I beräkningarna jämförs fem roterande värmeväxlare mot varierande antal frånluftsvärmepumpen.

BAKGRUND: CABG blir en allt vanligare åtgärd vid kranskärlssjukdom inom svensk sjukvård. Målet med operationen är att lindra symtom vid kärlkramp och hjärtinfarkt samt att reducera mortaliteten. SYFTE: Syftet var att beskriva patienters emotionella upplevelser under det första året efter en CABG operation. METOD: En allmän litteraturstudie som grundades på kvalitativa vetenskapliga artiklar genomfördes. Resultatet baserades på sju vetenskapliga artiklar som söktes fram via elektroniska databaser och därefter granskades och analyserades.

This thesis was commissioned by Tekniska verken, Energy Division with the overall aim to investigate the concept of environmental debt and what it means for a business. Furthermore, a sustainable risk and responsibility investigation shall be carried out on the concerned areas. Finally, the priority areas shall be highlighted and proposed actions presented. The Swedish Environmental debt concept was presented in 1992 by Arne Jarnelöv. Environmental debt is defined as restoration costs for environmental damage. In the early days the concept did not take into account who was responsible, but the environmental debts was regarded as a humanity debt to future generations.

Lower energy use in buildings is a result of increasingly stringent energy requirements across Europe. When conventional district heating technology is used in areas with low energy consumption heatlosses do not fall even though the amount of energy delivered is reduced. This reduces income for thedistrict heating company. To maintain their economic viability the district heating companies? majorchallenge is to implement new solutions that minimize heat loss.