785 uppsatser · sida 39 av 53
<em><em>Magnetic fields generated by electrical substations during distribution of electric power</em></em>
… documenting electromagnetic fields generated by one of the later parts in the electrical power distribution chain: The electrical substation, wherein 10 kV is transformed to 400 V for use by private consumers. Thus it is one of the most widespread and frequently occurring parts …
The purpose of this study is to investigate how much of the estimated annual electric energy production from Swedish wind power that actually was produced, as well as the history of this agreement over time. The aim is to also examine if there are properties that have caused …
The Smart Grids development is driven by forces concerning safe electric transmission done in an energy efficient way. Vattenfall Eldistribution AB has a vision to transform their electricity network into Smart Grids. To invest in Smart Grids they have a need to show their …
… different types of solar cells and solar cells essential function to generate electricity in the report. Different factors that are limiting the generated energy are mentioned. An investigation of the property’s potential has been made in order to consider different designs …
… the FEM-software ANSYS Workbench 13.0. The generator axis is a part of a hydroelectric power station that generates electricity with a reactions turbine, a Kaplan turbine. The existing keyway consists of one parallel key with the width 90 mm and height 45 mm. Due to a planned …
… the FEM-software ANSYS Workbench 13.0. The generator axis is a part of a hydroelectric power station that generates electricity with a reactions turbine, a Kaplan turbine. The existing keyway consists of one parallel key with the width 90 mm and height 45 mm. Due to a planned …
En numerisk analys av den ringformade koaxiala borrhålsvärmeväxlaren
… 10-19 % in comparison with a U-pipe BHE. This is equivalent to 10-19 % lower electrical power consumption every year.
… power of 28 MW. The comparison shows the total energy recovery, of heat and electricity, for the combustible MSW in the stocker grate to 2.51 MWh, and for the 540 kg RDF incinerated in a fluidized bed to be 2,56 MWh. As long as the proportion of RDF processed from a ton of MSW …
Hållbara uppvärmningsalternativ för vandrarhemmet på Finnhamn
… can replace the existing heating system of Utsikten (an oil-fired boiler and electricity heaters) to a system with renewable energy. The alternative system that this project focuses on is a system of solar collectors combined with a wood chip boiler. Information for the project …
… houses in Hammarby sjöstad. The systems considered are based on either electricity generation by solar cells or heat generation by solar water heaters. Different uses of the obtained energy are discussed ” grid-connected systems, local direct current systems and heating of tap …
… by the system. Solar collectors generate heat, while solar cells generate electricity.Analysis of the different systems shows that solar collectors can supply the entire domestic hot water need, during the summer, in the Royal Seaport. While the electricity from the solar cells …
… save been identified. Areas of focus are heating, ventilation, hot water and electricity. Several techniques have been explored within each focus area and applied to an apartment building. When applying the model on the current property several techniques seemed to be …
… None of thesemodifications will affect Vista’s historical presence and the electricity usage can be significantlyreduced as the heating radiators can be removed. The total cost per month with a 15 yearpayback plan is will be 8 000 SEK.
… of doing this were studied. Implementing variable condensation would reduce electrical usage by ca. 15300 kWh per year, which produces ca. 15600 kr of yearly savings. Furthermore, carbon dioxide emissions would decrease by 141 kg per year. Implementing a water cooled condensing …
The guest harbor on Utö, Utö Gästhamn, is currently using electricity for heating all of the water used in the showers and taps. Because of the large amount of visitors, especially during the summer months, the hot water usage gets very high and that is also the case for the …
