364 uppsatser · sida 9 av 25
… treatments are evaluated in this environmental assessment, with a focus on energy and climate. The materials included in the study are organic household waste, slaughterhouse waste and liquid manure. Other than biogas production, the possible treatments for organic household …
… treatments are evaluated in this environmental assessment, with a focus on energy and climate. The materials included in the study are organic household waste, slaughterhouse waste and liquid manure. Other than biogas production, the possible treatments for organic household …
Med en undersökning av hårdvaxolja som diffusions-/konvektionsspärr
… and 10 % in single-family homes in Sweden. In the year 2010 the total input of energy to the Swedish district heating grids was about 70 TWh, which corresponds to 11 % of the total energy input to the whole energy system in the country. Through the combined production of heat …
… dependent, with a low load during periods of high ambient temperature. Thermal energy storage (TES) has the potential to shift heating loads from winter to summer, thus reducing cost and environmental impact of District Heat production. In this study, a concept of high …
… dependent on subsidies and grants to bring in a profit for the investor. Production of excess electricity is a major reason for this as the compensation for excess electricity today is low. However, there are businesses that have an electricityneed that are particularly suitable …
… The ”prospect” project description is aimed towards calculations of the energy carried by the wind and transformed to electricity by windmills. With a relatively simple algorithm of mean wind speed data from the MIUU - model, Cp and rotor area from a turbine with 90 m diameter …
En litteraturstudie och rötning i labbskala
Until 2020, 49% of Sweden's use of energy must derive from renewable sources. Greenhouse gases must as well decline with 40% compared to 1990 as a part of Sweden's 16 environmental objectives. Biogas is part of the effort to achieve these objectives, but as the demand for biogas …
Ocean Thermal Energy Conversion, OTEC, is a sustainable energy conversion technology that is not yet commercialized. OTEC is a technology that utilizes the temperature difference in oceans between the warm surface water and the cold water at 1 000 m depth to run a Rankine Cycle …
En undersökning av förutsättningarna för en vindkraftpark på ett sen tidigare planerat område
… distance between turbines and other data we can do a calculation of how much energy the wind farm produces annually. Calculations were also made In WindPRO regarding sound levels and shadow creation. This is so that the wind farm will be designed so target values for noise and …
en jämförelse av klor och UV-ljus
… LCA show that disinfection with UV-light and monochloramin is about 45% more energy demanding than the other alternatives. The total use of energy with UV-disinfection is equal to 0.5-1% of the total energy required to produce and distribute the drinking water. Regarding to the …
en jämförelse mellan deponering och förbränning med energiutvinning
… Santiago, Chile ? a comparison between current system and incineration with energy recovery". The purpose of this thesis was to investigate if incineration with energy recovery could be motivated through an environmental perspective as an alternative to landfilling of solid …
… ClearCrystals? technology and reverse osmosis. The analysis of the electric energy use shows that the fishing harbor has a need for electricity, which is 32900 kWh, using the chosen water purifying technology, which is reverse osmosis. The need for electric energy will be …
The Swedish pulp and paper industry meets higher demand for energy efficiencyi mprovements with increasing energy prices and changes in the Swedish renewable energy certificate system. One action of energy efficiency improvement is by using secondary heat, that otherwise would …
Förflyttning av produkt
… Previous studies show that adding salt improves aeration and the use of energy during the aeration process decreases. In many of the Swedish forest industries the electric power required for the aeration process is responsible for more than 50% of the total use of energy. The …
… is supplied primarily by seven rotary screw compressors and yearly electric energy consumption in these has been determined. Furthermore, the usage of compressed air has been mapped in order to find processes with energy savings potential. Several suggestions how to reduce the …
