Sökning: "Kraftvärme"
Visar resultat 51 - 55 av 83 uppsatser innehållade ordet Kraftvärme.
51. Uppgradering av biogas med aska från trädbränslen
Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Energy and TechnologySammanfattning : The Swedish production of biogas was 1,5 TWh 2011. About half of the production was used as vehicle fuels. The cost for upgrading biogas depends on the size of the biogas plant and its gas production. If the gas flow is low the cost will be high. LÄS MER
52. Koldioxidsutsläppsbesparing vid biogasproduktion
Kandidat-uppsats, KTH/EnergiteknikSammanfattning : Society has depended on fossil-based fuel for a long time, which has led to a fundamental increase of greenhouse gases in the Earth’s atmosphere. To tackle this problem the international community has agreed that action is necessary. Focus is now directed towards local extraction of energy from renewable sources such as biogas. LÄS MER
53. KORTSIKTIG PRODUKTIONSPLANERING I MINDRE FJÄRRVÄRMESYSTEM : En studie vid Strängnäs Energi AB
Uppsats för yrkesexamina på avancerad nivå, Akademin för hållbar samhälls- och teknikutvecklingSammanfattning : District heating covers around 80 % of the heating demand in apartment buildings and 10 % in single-family homes in Sweden. In the year 2010 the total input of energy to the Swedish district heating grids was about 70 TWh, which corresponds to 11 % of the total energy input to the whole energy system in the country. LÄS MER
54. Lönsamhetsanalys av tekniker för utökad elproduktion i kraftvärme : Med hänsyn till elprisets variationer
Uppsats för yrkesexamina på avancerad nivå, Institutionen för geovetenskaperSammanfattning : This thesis aims to examine the viability of various techniques for increased electricity generation in CHP plants and the effect of electricity price fluctuations on the profitability.The techniques examined are fuel dryer, pellet production, methane production, combined methane- and pellet production, seasonal heating storages in caverns and pit heat storages and condensing tail. LÄS MER
55. Biogas på Wapnö : Analys av framtida energisystem
Kandidat-uppsats,Sammanfattning : Considering that the price and demand for energy gradually has risen over the past decade and a wider discussion about the human impact on the environment has become increasingly more important and given a clearer role in modern society. This has contributed to increased incentives to reduce the use of fossil fuels and increase the use of renewable energy. LÄS MER