Two elementary schools are now being built in Gråbo (in the municipality of Lerum),Röselidsskolan and Ljungviksskolan, which are both designed with solar thermalcollectors for the schools domestic water heating. During the summer while thelargest amount of solar heat can be generated, the activity hence the domestic wateruse in the schools are heavily reduced. Both schools are connected to the local districtheating system which makes it possible to use the solar collectors to deliver heat tothe district heating.The purpose of this thesis is to evaluate the two systems mentioned above and todetermine which system is more suitable to apply on a school. The building whichconditions were used for this evaluation is Röselidsskolan.A solar heating plant of each system type was dimensioned from the expected andknown conditions of the building. The purpose with the dimensioning was to makethe solar plants replace the ordinary energy source as much as possible.

AbstractConsider a ?uid being heated from below. The heating leads to an upward convectiveforce that is counteracted by the viscous forces of the ?uid. If the convectiveforce is large enough in comparison to the viscous forces the ?uid will be put in anunstable state.

The goal of this paper is to provide a model for a sustainable electricity system to an island, in the Pacific Ocean near the equator.The method which has been used is to model supply and demand of electricity in the computer program Stella, through the creation of a dynamic system that balances them against each other. The result from the model will then be used to calculate the electricity price per kWh for the island.The result of the work is that electricity from solar energy is comparable with electricity produced from oil, if the oil pays for all its external costs, and the potential for pumped hydro storage plants is located. It also requires that consumers of electricity can be their own producers to avoid the expenditure of tax and reducing the cost of distribution. But since oil is a finite resource and has had a rising cost in recent years, while solar energy has had a declining cost, perhaps this will be a more competitive solution in the future.

AbstractConsider a ?uid being heated from below. The heating leads to an upward convectiveforce that is counteracted by the viscous forces of the ?uid. If the convectiveforce is large enough in comparison to the viscous forces the ?uid will be put in anunstable state.

 This degree project aims at developing a concept for how to use solar energy to pump up water. The target audience is people living in areas where the functioning of the electricity and water network is absent. In these areas, the hand-powered water pump is the most common technology. The degree project's goal is to find an economically viable alternative to the time consuming hand-powered water pumps. The power comes from solar energy.

The objective of this graduate work is to gain a better understanding in how pre-school educators are able to work with music in their pre-school activity to promote child development. We also want to enlighten possible factors for the development of children based on music and to form our own ideas of whether teachers choose to apply music in their didactic practice or not.The point of this essay has been to attempt answering on what importance music makes for children's development and learning in pre-school, and how teachers could work with music in pre-school in order to promote children?s development. Our data consists of six interviews and two observations realized at a pre-school in Södertälje.We took heed from the theories laid out by Lev Vygotsky's which describe four different levels of development that includes educational development in social interaction between teacher and child. Our choice of this theory is inspired by our seeking deeper understanding of Vygotsky's theory´s application to the aesthetic approach in the interaction in meaning making and learning.The result of our study confirms previous theory and research in that music as a form of expression has a major impact on children's development.

LEDAthe chair as representativean exploring work on added value throughaesthetics and function.The project deals with portraying a chair. A chair thatwill raise questions regarding added value, questioning oursurroundings and not taking things for granted. Through anumber of properly selected words, I have built a collectionof objects that possess the basis of a chair. The words arebased on sources of inspiration; I picked up over the yearsand can be seen as a part of me and my inner self. QuestionsI asked myself concerns the impact of aesthetic and how itrelates to the function.

The National Arts Council[1] has made an evaluation on obstacles and success factors for the interaction between culture and school. In the evaluation report they concluded that teachers and cultural workers have different views on culture and knowledge which creates confusion in their interaction. Thus I became interested to investigate teachers and cultural workers views on culture, aesthetics, and the knowledge that they think the students / children / young people should get from culture and aesthetics. This work is based on qualitative interviews with four teachers and four cultural workers. I compare their views with each other and link it to different research perspectives on culture and aesthetics in school to get an understanding of the similarities and differences in their approach, and what implications it can have in the school?s learning processes. In this work, from a didactic point of view, I found that when the teachers and cultural workers are talking about culture, the why-perspective differs.

In the world we live in today the environmental issues has become increasingly important, and we have begun to realize that we can not continue to use fossil fuels at the rate we do. When it comes to generating electricity we are constantly trying to come up with cleaner and more efficient solutions. The fuel celltechnology is one such alternative and has been around for over 100 years. Yet, it is not until now that the world has started to notice this great technology. The fuel cell has been developed in several areas and can today be used for handheld electronics, vehicles and small settlements.

The purpose of the project has been to work out recommendations that reduce the energy-related costs and environmental impact of HPW Fresh & Dry Ltd., a fruit drying factory in Ghana. The factory produces electricity with diesel and biogas but also purchases electricity from the national electricity company. Heat for the drying process is produced from biogas, kerosene and solar panels. In the project the energy system was analyzed by measuring production and consumption of heat and electricity. The project results show that the factory can become self-sufficient on heat if the available energy is used more efficient. The production units for both electricity and heat have low efficiencies.

The sun is a huge energy source with great potential of providing energy to the heating of homes and other buildings in an environmentally sustainable manner. In order to provide buildings with energy from the sun it is necessary to transfer the energy supply over time to when the demand arises. By storing the heat in a seasonal storage, solar energy from the summer can be used in the winter when the demand for heating is greatest.Today's existing plants are mainly in Europe and particularly in Germany. These facilities are designed to supply heat demands greater than 400 MWh and covers about 40-50 % of this need which consists of energy for space heating and domestic hot water. How much of the heat demand that is covered, the solar fraction, is partly due to losses from the storage which in turn is connected to the surface area of the storage.

Local charges may induce people to change their pattern of consumption by influencing investments and acts in certain directions. Some charges could for example give people incentives to use less natural resources. This study investigates four different local charges and whether they benefit an economical management with natural resources or not. This is carried out by investigating whether there is a polarity between local charges that may influence environmental actions or goods, and effective pollution control set to achieve certain nationally determined environmental goals. The study includes two economic perspectives and investigates on the one hand whether local charges counteract governmental subsidies and on the other hand whether the charges vary between the different municipalities since large differences may lead to cost inefficiency.

The aim of this study is to examine views of picture books for children that reviewers in Swedish daily press express in their reviews in 2009 and 2010. The following questions were posed in the study: Are picture book reviews based on pedagogical criteria and/or aesthetic/literary criteria? Are picture books reviewed from an adult perspective and/or from a child perspective? Which elements of positive and negative criticism are to be found in picture book reviews? This qualitative study is based on 45 reviews of picture books in Swedish daily press. The theoretical approach is developed from four ways of looking at children literature that professor Maria Nikolajeva has compiled. The method used is idea analysis, which is a form of text-analysis.

The fishing port of Bläsinge is located on the east coast of Öland, Sweden?s second largest island. Today the port has a limited supply of freshwater. The economic association of the fishing port wants to expand their business, so that they will also include tourist services. To do this the harbor will need a more independant source of freshwater, with a higher quality than the present well.

In the thesis we have shown that it is possible with current technology, to buildneighborhoods that are largely self-sufficient. We have obtained some information aboutongoing work in the field of energy efficient buildings and active house which we have usedto develop a model. The feasibility study for Ranagård we have e.g been forced tofollow laws on groundwater covered, resulting in the construction of basements for singlefamilyhome is not possible. The model that we have built up overtime has been the central part of the work. The model illustrates very well what an activehouse neighborhood means and potential of such an area.