785 uppsatser · sida 17 av 53
… has also shown that Gotland has a great potential to produce more renewable electricity, but the development is dependent on the new power lines being built, in order to export electricity to the mainland.
At the Division of Electricity at Uppsala University there is an experimental rig for hydroelectric generators. The experimental rig’s vital part is a 12-pole synchronous machine, whose electrical characterizing parameters (resistances, inductances and time constants) are …
Drivanordning för vertikaltgående fönsterpartier
… close cooperation with Ergosafe AB. Ergosafe develops, manufactures and sells electric sliding windows. Due to the company’s current expansion phase they want to increase their product range. The company has identified a need for large windows that moves vertically. The driving …
… In the current situation there is a lot of problems with production of electricity from photovoltaic, that’s why we show some possibilities how to avoid these. To understand the problem with photovoltaic produced electricity we first give you a background. We show how to expand …
En teknisk rapport för HFAB
… on apartment blocks. The technology with using solar cells for manufacturing electricity, has been on the market for a while, but recently the new installations of solar cells has increased. Solar cells are suited for placements on buildings but are expensive to obtain. The …
At the Division of Electricity at UppsalaUniversitythere are ongoing researches, including a research concerning turbo generators. Turbo generators produce a large share of electricity in the world; however they are costly mainly due to the fact that the cooling and ventilation …
Undervisningshuset och Biblioteket i Uppsala
… and lighting. The need of purchased energy can also be reduced by producing electricity or heat on site, using solar energy. Results show that economically viable measures include upgrading windows and faucets, adjusting control systems for ventilation and lighting, and …
I Sverige används det idag cirka 5,4% förnybara drivmedel inom transportsektorn, att jämföra med under 0,5% år 2000. Av de ickefossila drivmedlen är el något som ofta benämns som en permanent och realistisk framtida lösning. Visionen ”Stockholm ” Elbilsstad 2030? drivs av …
… The requirements concerning the product consist of functional, qualitative and electrical requirements. Belonging to the functional requirements are the following: stroke, force, illumination etc. To the qualitative requirements belong: performance, reliability, applicability …
… treatment. These four treatments also gave significantly higher soil electric conductivity than the other treatments, as did the fully fertilized treatment in the original pot experiment. Therefore, it is possible that electric conductivity is the factor causing the change in …
… conventional milking system was used to measure interesting temperatures and electricity consumptions. The numbers were used both to do theoretical calculations and to construct a SIMULINK model. To calculate the potential for heat at milk farms theoretical calculations were …
en analys av rättsförhållandet mellan elhandelsbolaget och konsumenten mot bakgrund av bestämmelserna avseende konsumentens avtalsbrott
Sammanfattning Elförsörjning är en av samhällets mest vitala funktioner och el förbrukas daligen av konsumenter. För att konsumentens ska kunna elförsörjas krävs det bland annat att denne ingår avtal om köp av el med elhandelsbolaget. Avtalet ålägger konsumenten en …
En studie av två verkliga byggnader
… on the assumptions that the interest rate should be 4%, the future price on electricity was 3 SEK/kWh and that the future price on electricity will be double the price of the district heating. The investigation also exhibited the known fact that the smaller building is the more …
… Because of a rapid technologic change and increased costs of production of electricity, the demand to develop effective methods for energy efficiency industries have grown.The electricity-intensive industries, such as plastic industry, the demand to reduce energy consumption has …
möjlig genererad effekt och solcellers estetiska konsekvenser
… solar cell module, which in this case study has been proven to generate most electricity is stand-alone modules on roofs. These are however, more difficult to reconcile with the architecture. Solar cells on the facades should therefore still be considered as an alternative …
