Search for dissertations about: "energi- och miljöteknik"
Showing result 16 - 20 of 137 swedish dissertations containing the words energi- och miljöteknik.
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16. Studies to Avoid Decreased Efficiency in Multiple Stage Biological Wastewater Treatment Plants: Concerning Forests Industry Effluents
Abstract : Målet med den här studien är att förhindra effektivitetssänkningar i moderna biologiska reningsanläggningar för skogsindustriella avloppsvatten. Biologiska processer är vanligtvis effektiva när det gäller att reducera lättnedbrytbart organiskt material. Eftersom den utgörs av levande mikroorganismer (MO) är tekniken känslig. READ MORE
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17. Energy efficient control of motors and inverters
Abstract : The purpose of this licentiate thesis is to research a few key concepts which are important in the development of high efficiency electric drives. The selected research method is quantitative, the raw data have been collected from real world measurements, both from powerlab and from train. READ MORE
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18. Energy Efficiency through Thermal Energy Storage : Possibilities for the Swedish Building Stock
Abstract : The need for heating and cooling in buildings constitutes a considerable part of the total energy use in a country and reducing this need is of outmost importance in order to reach national and international goals for reducing energy use and emissions. One important way of reaching these goals is to increase the proportion of renewable energy used for heating and cooling of buildings. READ MORE
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19. Dynamics of wood particle pyrolysis applied to gas-solids fluidisation
Abstract : Avhandlingen behandlar matematiska modellerings- och simuleringsaspekter samt resultat rörande pyrolys av stora och små träpartiklar. Avhandlingsarbetet är inriktat på två specifika processer. Den ena är pyrolys av enstaka träpartiklar och den andra är pyrolys av fluidiserade träpartiklar. READ MORE
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20. Combined solar and pellet heating systems : Study of energy use and CO-emissions
Abstract : In this study 4 solar and pellet heating systems have been studied with the help of annual dynamic simulations. Two of the systems comprised a pellet stove and two systems were solar combisystems; one with a store integrated pellet burner, the other with a separate pellet boiler. READ MORE