785 uppsatser · sida 49 av 53
DAC Mark.I
… of a modification called ?Programmable MOSFET?and targets optimization of the electrical components within the AEG. This means that you digitalizethe control of your AEG thus entails new functions and more stability to the system that isn’t possiblewith its mechanical …
Fallstudie Uppsalakommun
… energy system within the municipal boundaries, with the exception of electricity produced outsidethe municipality. At the case study of the municipality of Uppsala and the Uppsala climate protocol, most of the input data required for a baseline inventory and formulation of …
The society of today is largely dependent on electricity and the dependence does not show any signs of declining. Reliability of supply will become increasingly important in the future and it is therefore important to investigate factors affecting the failure rates in electrical …
… with roughly 75-157 tonnes of CO2 equivalents per year, depending on how the electricity consumption’s environmental impact is estimated. The payback period is about 11 years, including the warm-up period that is necessary before commissioning the BTES. The savings in …
va?gen till ha?llbar utveckling
… in passive houses has developed when it comes to heat exchangers and the electric motors in the ventilation unit. Within the heating system, a development has led to compact units where ventilation, heating and domestic hot water is integrated in the ventilation system. As …
En litteraturstudie
I dagsläget har världen en stadigt växande befolkning och där igenom en stadigt växande energiförbrukning. Med en växande energiförbrukning har det under de senaste åren uppenbarats diskussioner rörande samhällets hållbarhet och miljöpåverkan. Samtidigt sker det en kontinuerlig …
… (EMG) is a technique that measures muscle activity, which means detecting the electrical signals that travel through the muscle in connection with muscle contraction. This project deals with how EMG can be used to control a computer game. The project is centered around the game …
Beräkning av utnyttjningstid för en uppvärmd konstgräplan med alternativa rörplaceringar
… to increase the utilization time up to 7000 hours per year, with a calculated electricity consumption of about 262 MWh/year. The sensitivity analysis performed on the material's thermal conductivity shows that the choice of material for similar heating systems is important and …
… av skyddstaket till truckserien staplare (Stacker, Pedestrian with platform, Electrically powered) genomförts. Syftet är att undersöka möjligheterna att ta fram en ny konstruktion på skyddstaket som, jämfört med den befintliga konstruktionen, kan absorbera energin från en …
… of food production and at the same time has the possibility to decrease the electricity- and heat consumption at the wastewater treatment plants. The aim of this study was to investigate how a possible synergetic effect between microalgae and sewage sludge effects the biogas …
Examensarbetet var en utvärdering av en synkron trefas permanentmagnetmotor med utvändig rotor. Den är tänkt att ingå i ett batterimatat drivsystem för hjälputrustning på segelbåtar. Målen var att kartlägga prestandan i standardutförande samt att hitta de svaga punkterna i …
I samband med att mellanspänningsnätet kablifieras ökar också kraven vad gäller fellokalisering. För att hålla avbrottstiderna i nätet korta är effektiv felsökning erforderlig. Detta arbete syftar till att kartlägga och redogöra för begränsande faktorer som finns vid …
Konceptstudie av ett obemannat flygplan
… for example. In order to determine every parameter of the airplane the electric motor from Sineton and inspiration from other small airplanes composed the starting point. Some important specifications were a maximum weight of 25 kg, a cruise time of at least three hours and a …
Att skapa möjlighet för distansarbete i naturen
… is usually not available today in public recreation places, such as Wi-Fi and electricity supply. The literature survey, interviews with lead users, and a survey have shown the need for the Work in Nature concept. The services and products that are developed during the project …
The division of Electricity at Uppsala University is developing a wave energy converter(WEC) consisting of a linear generator connected to a bouy at the water surfacethrough a wire cable called the connection line.During extreme conditions, the wave power plant will experience …
