25 uppsatser · sida 2 av 2
teknik och investeringsutrymme
… so it seems natural that those who already haveaccess to large amounts of biofuels in the form of by-products such as straw, wood chips anddigestible materials take advantage of these assets locally. By combining production of heat withpower production at the farm it may be …
… 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. This increase in energy cost is most …
en sammanställning av spridningsbar aska i södra Sverige
I takt med ökande intresse för uttag av grot så ökar också intresset för återföring av aska tillbaka till skogen. I rapporten utreds hur mycket återföringsbar aska som produceras av förbränningsanläggningar. Arbetet begränsas genom att endast förbränningsanläggningar med större …
A change towards using more biofuels than fossil fuels is taking place in Sweden, and in many other parts of the world. This makes the use of fuel pellets increasingly popular, causing a greater demand for sawmill sawdust products. There is a trend towards the use of multiple …
… as surplus heat into water if the demand for electricity is high. Renewable biofuels turn CHP plants into bio-condensing electricity power plants. A general exemplification of this situation at Fortum Heat shows positive economical results. Producing electricity independently of …
Med fokus på Kvarteret Trettondagen
… the passive house in Falkenberg which was connected to district heating from biofuels (1,035). By switching to district heating from waste instead, the passive house in Falkenberg will then pass the limit. Primary energy usage for the passive houses in Oxtorget was also …
En studie i potentiell va?rmeintegration
Fossila bränslen har sedan de upptäcktes konkurrerat ut biomassa som den huvudsakliga energikällan. Framförallt i trafiksektorn har drivmedel som härstammar från fossil olja varit dominerande. Främst på grund av deras fördelar mot biomassan såsom tillgänglighet, pris …
soil carbon and yield modelling for crop rotations with rye
… (high yield of total solids, energy and protein, low yield of straw, no biofuels) and with a mostly neutral carbon effect on normal, healthy soils. The best rotation from a soil carbon perspective was found to be Rye-Ley-Ley-Rye-Potatoes-Rye with ley used for biogas production …
En företags- och samhällsekonomisk kostnadsjämförelse av förnybara drivmedel för stadsbussar i Uppsala utifrån tre skattescenarier
Stockholms län är en expansiv region vars befolkning har vuxit kraftigt de senaste årtiondena och kommer enligt prognoser att fortsätta växa under en överskådlig framtid. Inflyttningen har inneburit att en redan hög efterfrågan på hyresrätter har blivit ännu högre. Trots en hög …
The market for biofuels from the forests have had a positive development and the job initiators for this master´s thesis wanted to examine the profitability of a method for harvesting forest fuel, which was unfamiliar to them. The method was the ”long tree tops-method”, here …
