364 uppsatser · sida 11 av 25
? En utredning med fokus på spänningsvariationer och osymmetri inom landsbygds- och tätortsnät vid en- och trefasanslutning av solcellsanläggningar
… Europe. This cross-border market will result in a large proportion of fossil energy sources integrated into our electrical system, which also leads to an increased need for renewable electricity production in Sweden. One part of this development is to increase the share of …
Tillämpning av industriell symbios för ökad resurseffektivitet inom den svenska tomatodlingsbranschen
Industries with energy costs as a large proportion of their total costs are greatly affected by the instruments deployed to cope with the Swedish climate and energy policy goals. With energy costs representing more than 30 % of the total costs, tomato cultivators are one of the …
comparing biogas production to incineration
… terms of global warming potential (GWP), acidification, eutrophication,energy use and land use. Two alternatives for utilization of the biogas werealso compared through LCA, generation of electricity and the use of thebiogas in heavy vehicles.From an environmental perspective …
… intestine (AAT) were considered and, secondly, the content of metabolizable energy. Because the requirements of protein in relation to energy change when calves grow the diets were rebalanced four times for the weight intervals 75-125 kg, 126-175 kg, 176-225 kg and 226-275 kg …
teknik och investeringsutrymme
… of greenhouse gases by 20 % by 2020, Swedenneeds to increase its use of bioenergy. In doing 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 …
soil carbon and yield modelling for crop rotations with rye
… with respect to soil carbon effects and crop yield (by mass of total solids, energy and protein yield, as well as straw and bio fuel potential to replace fossil fuels), weighted to find the best performing crop rotation with rye, and the best cultivation methods. As expected …
etanol som fordonsbränsle
… 95 % alcohol is used as a neat fuel in E100 cars. Ethanol contains 60 % of the energy value of gasoline but gives higher torque and peak performance, so an E100 car will use about 15- 20 % more fuel/mile. The measures that were taken to stimulate the ethanol production can be …
… a high content of starch, 42-51%, and a low content of fat. In general, the energy value for peas is higher than for barley but lower than for rapeseed and soybean meal.Pea protein consists of albumins and globulins to 85-100%, which leads to the fact that a large part of the …
experiences from the Swedish horticulture
… need of transports ” as a result less emissions ” Cities that are more energy efficient and therefore more sustainable ” Money is spent locally which benefits the local economy ? Gives employment The positive impacts urban agriculture has on a society is the main reason why the …
… certificates are seen as an important tool to promote production of renewable energy. In a green certificate market producers sell certificates received per unit of electricity generated from renewable energy. Trade in renewability is thereby decoupled from the the physical …
en jämförande studie av fyra flödeskedjor från avlägg till förbrukare
… by about 100 000 hectares per year. In later years the price for biomass energy has increased to the same level as pulp wood. The high price on biomass energy and the large areas of stands in the need of brushing has created a new market with its own technical, economical and …
After parturition the energy demand for milk production is greater then the energy provided from the diet. The cow mobilises therefore body tissues to compensate for the energy loss. Live weight and body condition scores decreases as a consequence of the mobilisation. The aim of …
Är smart laddning av elbilar lösningen på ett framtida flaskhalsproblem?
… Island is to become self sufficient using electricity from renewable source of energy such as wind. There is currently 55 MW capacity installed on the Island and it is estimated that grid congestion will occasionally occur if more than 135 MW was installed. The aim of this …
… on calculations and emission factors were made.The consumption of energy is the main source of greenhouse gas emissions for district heating, electricity, hotels, taxis and materials. For food production the biogenic greenhousegas emissions are also important, such as the …
… on calculations and emission factors were made.The consumption of energy is the main source of greenhouse gas emissions for district heating, electricity, hotels, taxis and materials. For food production the biogenic greenhousegas emissions are also important, such as the …
