138 uppsatser · sida 9 av 10
Rötgaskammare för småskalig biogasproduktion
… and medium-sized to smaller farms to become self-sufficientin terms of electricity and heat is great. Farms have a natural stock of digestibleorganic material in form of manure or crops for example, which are constantlyavailable. A reason that only a few small plants exists are …
… between the warm surface water and the cold water at 1000 m depthto produce electricity. The purpose of this report is to investigate if OTEC with its synergiescould become a commercially feasible energy solution for a small island. A literature reviewis conducted to explore the …
Kan Sverige försörja sig med 100 % förnybar
The aim of this report was to investigate if Sweden can have 100 % renewable electricity production in the year 2050. The conclusion is that it is possible but under certain conditions. For instance wave power must be in commercial use. When wind power and solar power represent …
En kartläggning och analys av de balansansvarigas arbetsgång
… the possible implications that might occur. Implications could be increased electricity prices and economies of scale for larger BRP’s.
… load during winter. Meanwhile the compression heat pumps have a large cost for electricity. This causes a negative net present value according to the result, while the systems with absorption heat pumps have a discounted pay-back time of 12 years. Another positive effect of the …
… with biofuel. In this system the main carbon dioxide contribution comes from electricity for light. The cuttings cultivated in Kenya have the lowest contribution of carbon dioxide emissions. Therefore, from a carbon dioxide point of view, it is better to cultivation the mother …
granskning av fem tillståndsansökningar från vindkraftprojektering i Sverige
… has decided that Wind power should have a higher contribution to the electricity generation in Sweden. Their goal is that, by 2015, the yearly production by Wind power should generate 10 TWh. In year of 2006, the 760 wind mills in Sweden generated only 0,936 TWh. Despite good …
… The economic calculation methods used in this project is the annual method and electricity price prognosis. Among the results some interesting KPI (Key Performince Indicator) for the wind farm is presented. To be able to do a risk analysis three scenarios has been created, the …
Energieffektiv fiber produktion
… additives for the separation; the only thing needed is flax, water and electricity. For it to be considered environmentally friendly is has to be efficient, therefore the thesis rapport discuss the discharge efficiency. The result of the fiber separation tests show that Fireball …
… improvement. A new type of frequency control will be introduced onthe Nordic electricity market with the purpose of relieving the primary control. It willserve as a link between today's primary control and secondary control.
… for houses, where heating methods that depend on energy sources such as electricity, district heating, fuel oil, gas and biofuels are the most common ones. During the winter period, the increase in energy costs becomes significantly evident, especially for small property owners …
Micro-production of electricity
På elmarknaden har man utvecklat fenomenet mikroproduktion av elenergi vilket innbär att slutkunden själv ska producera sin el främst genom att utnyttja sol och vind kraft. I Sverige finns det ett växande intresset för mikroproduktion. De flesta som producerar sin egen el gör …
… where the compared systems purpose is to be independent of direct using electricity. A system of this design is regarded as sustainable according to environmental as economic issues. The following heating systems have been analyzed in combination with solar energy; Geothermal …
En utvärdering av två simuleringsverktyg.
… roof and is the point of reference for both software´s in the calculation of electricity production.The subject of the thesis concerns the solar energy with a focus on grid-connected photovoltaic systems and beyond that the work has also led to an investigation of solar …
… cells and solar thermal collectors. Solar cells convert solar energy in to electricity whilst solar thermal collectors convert solar energy into heat, which can be used to heat hot water for households. This goal of this study has been to investigate the possibility of …
