443 uppsatser · sida 2 av 30
… landfill can, through decomposition, give rise to a large amount of methane gas, which is an energy rich gas that can be used for heat and electricity production. To receive a relatively large amount of gas, the decomposition requires a high moisture content in the waste …
… large emissions of carbon dioxide. This problem can we reduce by using vehicle gas from digested solid manure and left over of pasture. I have studied the potential for this in the county of Västernorrland. The purpose is to investigate how much vehicle gas that can be …
… to use the oxy-fuel technology. The technology uses O2 and re-circulated flue gasduring the combustion which results in a flue gas mainly consisting of CO2. The flue gascould then be compressed and stored without environmental effects. A problem thatfollows from the compression …
En studie, ur livscykelperspektiv, av energianvändning och växthusgasutsläpp
… requires large amounts of energy and contributes to 22-31 % of all greenhouse gas emissions occurring in Europe. More than one third of the produced food is discarded instead of consumed, and food waste make up about 30 % of the waste generated by households. 60 % of this food …
Version 1.0
… This means that there is a large amount of manure as a basis for producing biogas in the area. A number of farmers have therefore formed a cooperative named Vessigebro biogas and started the project Green Vessigebro, with the goal of creating the conditions for a more profitable …
en jämförelse av klor och UV-ljus
… this study. Three different nethods are compared; disinfection with chlorine gas, disinfection with sodium hypochlorite and disinfection with UV-light and monochloramine. The method used is Life cycle assessment, LCA. LCA is defined as the compilation and evaluation of the …
Värmekollektor in Sunne is a company whose main occupation is to collect the gas produced in landfills. The gas contains about 50 % of Methane which is a greenhouse gas 20 times worse than CO 2 and should therefore not be allowed to leak into the atmosphere. The Methane is in as …
? Produktutveckling av en oljedimavskiljare
… was performed at Alfa Laval Tumba AB. In the past Alfa Laval have manufactured gas separators for engines where gas flows were cleaned from oil. A new business area for this kind of technology has shown to be the manufacturing industry where oil mist has to be separated from the …
… of uptake of anesthetics has been implemented by pumping a fraction of the gas from the container through a bypass circuit with an active charcoal filter that adsorbs volatile anesthetics. The flow through the bypass circuit is generated by a pump and is controlled by a linear …
En möjlighet att vara med och påverka
… groups have been working together to commonly prevent the building of a gas pipeline in the Baltic Sea. To do this, a comprehensive question how does the government and the involved interest groups work together in policy networks? has been broken down to three more specific …
Bestämning av verkningsgrad
Biogas is increasingly used for fuel in for example vehicles and it´s produced in a biogas processconsisting of the steps of pretreatment, digestion and gas cleaning. The pretreatment is a method usedto increase the gas production and / or destroy pathogens. The digestion is the …
I denna litteraturöversikt beskrivs olika sätt att administrera gas eller skum som massavlivningsmetoder för fjäderfä. Metoderna är gas i hel stallbyggnad, gas i mobil vagn, presenningmetoden, metallkammare samt brandsläckarskum. Dessa jämförs med varandra med avseende på …
The Shtokman Project : The socio-economic capacity of the Murmansk region in the framework of the development of the Shtokman project
This research is conducted on one of the world’s largest deposits - Shtokman gas and condensate field located in the Barents Sea. The development of the field is operated by the Special Purpose Company Shtokman Development AG - the international consortium of Total, Statoil and …
Framtida konsumtion, export, import och produktion samt konsumtion under inverkan av ett klimatavtal
… arise when negative aspects of consumption, such as emissions of greenhouse gases, are put in relation to an increased need of energy and economic growth. However, it is important to distinguish between different types of fossil fuels when it comes to their individual impact on …
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. However, further development of …
