785 uppsatser · sida 20 av 53
Energibesparing vid frekvensstyrning av centrifugalpumpar ? en fallstudie
… the energy savings potential within Siemens scope of practice. In Sweden the electrical drives stand for about 30 % of the total electricity consumption and about 60 % of the electricity consumption within the industry. During the pre-study phase electrical drives with pump …
… is cooled by applying external heat. This technique involves a reduction in electricity consumption compared to electrically-powered cooling machines and does not affect the district cooling system usage. It was therefore of interest to investigate if sorptive cooling would be …
… has been installed. The theory chapter deals both with the wind itself and how electricity can be generated from wind. There is also information regarding what laws apply when erecting wind turbines, and how the environment is affected by wind power. An analysis of wind data …
Med faunapassage
… small-scale hydropower plants in operation, which together generate 4.3 TWh of electricity per year according to Swedish hydropower compound (SVKF, 2011). This corresponds to the annual consumption of about 860,000 Swedish households (based on an annual consumption of 5000 kWh) …
… to examine the function of retinal cells. Light stimulation of the eye elicits electrical potentials in the retina. By aid of a corneal electrode and a reference electrode close to the back of the eye, the electrical potentials can be recorded and presented as an …
… 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 …
… project is to create a model for working with a high school project in Electrical and Energy Program. It should be conducted in a form like companies do according to the goals from The Swedish National Agency for Education. In order to fully perform this we use the concept of …
En explorativ studie av riskpremien för <em>Electricity Price Area Differentials (EPADs)</em>
Uppsatsens explorativa syfte är att utforska samt beskriva riskpremiens storlek och utveckling för de EPADs som handlas för olika elprisområden på den nordiska elmarknaden. Riskpremien har definierats enligt de prissättningsteorier som ursprungligen formulerats av Fama & French …
Ett samarbete med Sweco Energuide AB och Mälarenergi Elnät AB
The initial aim of the roll out of smart electricity meters in Sweden was to allow remote readings of the households? monthly electricity consumption for billing purposes. Since then the transition towards a smart grid has become a more prioritized matter. In the roll out of …
… is to create asolar PV policy. Today their offer is 1 SEK/kWh for theexcess electricity delivered to the grid.It turns out that compensating the customer is a vitalpolicy and it has to be dynamic to follow the decisions ofpolitics. The same survey shows indeed, thatenvironmental …
Ett förslag på policy avseende solceller hos privata mikroproducenter till Öresundskraft AB
… is to create asolar PV policy. Today their offer is 1 SEK/kWh for theexcess electricity delivered to the grid.It turns out that compensating the customer is a vitalpolicy and it has to be dynamic to follow the decisions ofpolitics. The same survey shows indeed, thatenvironmental …
Harmonics in power grids at Skellefteå Hospital
… focuses on the change of EEOI attainable with solar cells installed. The electrical energy consumption on-board M/S Sydfart, during the summer, is almost entirely covered with solar cells. The paper however shows some disadvantages. During the winter, the produced electrical …
<em>Med hjälp av solceller</em>
… focuses on the change of EEOI attainable with solar cells installed. The electrical energy consumption on-board M/S Sydfart, during the summer, is almost entirely covered with solar cells. The paper however shows some disadvantages. During the winter, the produced electrical …
längs Annetorpsvägen i Hyllie, Malmö
… barriers combined with photovoltaics along Annetorpsvägen to generate solar electricity. To quantify the losses that shadows from buildings along the roadmight cause, a 3D-model of the area was constructed in SketchUp. This digital model made it possible to simulate shadows and …
Ett examensarbete som startade med en enkel idé och utvecklades till en prototyp
… with focus on technical design. The thesis started in an operation which electricians are exposed to every day. The operation in question is cable laying or wiring. The tool they use is called a tension spring and is a long and stiff wire, usually made out of nylon or …
