345 uppsatser · sida 23 av 23
… to take proper actions. To be able to secure fault free operation of the power grid and to minimize the risk of wasting economic and material resources, and from a personal safety point of view, the power transformers must be maintained and tested regularly and be based on …
en studie om förutsättningar och konsekvenser för Köpings och Västerås hamn
… Västerås and Köping. A technical solution to connect the vessels to the local grid is suggested and the investigation is also aiming at an understanding of how the environment is affected by the use of shore side electricity. Furthermore, the costs of shore side electricity are …
… AB. Theload curve method is a tool used to forecast the strain of an electric grid. The method is based oncustomer annual energy consumption, outdoors temperature as well as customer category. Theload curve method was established by Svenska Elverksföreningen at the start of the …
… seemed to increase the probability of failure. The model also indicated that grids in urban areas and grids with many joints and different cable types increased the probability of failure. However, the model needs further improvement to ensure these results. The consequence from …
Feasibility Study of Grid-Tied Solar Cells in Husby
Den senaste FN-rapporten som utfördes av IPCC sa?tter punkt pa? faktumet att katastrofala klimatföra?ndringar kan undvikas utan ma?rkbar inverka pa? levnadsstandarden. Det gör förnybar energi till den billigaste och minst riskabla va?gen till en fossilfri framtid. Detta …
Undersökande av en Ray Tracing metod för ljudsimuleringar
… med mätningar. Olika grader inkapsling av motorrummet har simulerats. Ett grid response har tagits fram för att se vart det lönar sig att placera absorbenter. Ett beräkningsfel har hittats i den använda programvaran Odeon 10.13 vilket ledde till att en jämförelse mellan Odeon …
The district heating load is seasonally 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 …
En spänningsfylld simulering av elkraftsystemet vid Forsmark 3
… has the largest impact on the system voltages and surges in the external grid can produce standing waves in the system, causing significant overvoltages even in low voltage systems. The simulations produced larger overvoltages than would occur in a real system, which also would …
… alternatives are dependent on governmental subsidies, the system being grid connected and the possibility to sell surplus energy. Furthermore the simulations of building envelope and ventilation measures show a technical possibility to reduce the total amount of purchased energy …
En tvärvetenskaplig undersökning av Raä 977 vid Vojmsjön i Vilhelmina socken
… ”spot-tests” and coal samples for carbon dating. The site was documented in a grid of 33*33 cm and was dug in an artificial stratigraphy of 3cm layers. Because of these samples and the high resolution of the recorded data it is now possible with new technology and …
Analys om SOU 2014:40 skapar neutralitet mellan lånat och eget kapital
… physical structures are also very well connected to a nation wide electric grid that has connections to bordering countries as well. Due to neo-liberal developments in Sweden the former state governed electrical market is now deregularized and exposed to corporate competition …
Utgångspunkt ur NJA 2014 s. 604
… physical structures are also very well connected to a nation wide electric grid that has connections to bordering countries as well. Due to neo-liberal developments in Sweden the former state governed electrical market is now deregularized and exposed to corporate competition …
Vattenkraftverken som utsträckt urbanisering
… physical structures are also very well connected to a nation wide electric grid that has connections to bordering countries as well. Due to neo-liberal developments in Sweden the former state governed electrical market is now deregularized and exposed to corporate competition …
Då ett eventuellt förbud av nya kreosotimpregnerade stolpar kan bli en verklighet inom EU år 2018 letar Vattenfall efter andra alternativ. Stål, betong, limträ och komposit anses idag vara de mest konkurrenskraftiga alternativen och kommer att undersökas i denna rapport …
Optimization of a medium voltage electricity grid
EU vill genom att använda energin effektivare sänka sina energikostnader och minska sitt beroende av externa leverantörer av olja och gas vilket leder till att miljön skyddas. Av den anledningen krävs att energieffektiviteten ökas från produktion till den slutgiltiga …
