Uppsatser om gas

443 uppsatser · sida 5 av 30

Optimering av sotningsfrekvens i biobränsleeldad CFB-panna

panna 5, Mälarenergi AB, Västerås

Examensarbete · SLU

… combustion and the release of various substances and particles into the flue gas. This is caused by the diverse components and chemical structures of fossil fuels and bio fuels. When the flue gas leave the combustion chamber and enters the path to the chimney particles in the …

Biogasproduktion genom tvåstegsrötning av drankvatten

Examensarbete, grundnivå · Linköpings universitet

… global sea level. There is a clear connection between emissions of greenhouse gases caused by the human and the increase in temperature. Climatic changes caused by global warming can be stopped trough decreased emission of fossil fuels, for example by an increased use of biogas …

Reglering av naturgasdistributörer

En undersökning av benchmarking på marknaden för naturgasdistribution

Kandidatuppsats · Uppsala universitet

… different benchmarking models to measure and compare the efficiency of Swedish gas distributors. It also discusses to which extent the results of a benchmarking study should influence the revenue-cap which will be implemented in the gas distribution sector in Sweden from year …

Energy from municipal solid waste in Chennai, India

a feasibility study

Examensarbete, avancerad nivå · SLU

… and healthproblems. India is one of the world’s largest emitter of methane gas from waste disposal.Since methane is a strong greenhouse gas, even small emissions have large impact on theclimate. Improper treatment of waste will also affect peoples? health, first of all by …

Analys och beräkning av emissionsfaktorer för växthusgaser

Examensarbete, avancerad nivå · Uppsala universitet

… by the UN. This work demands updated emission factors for greenhouse gases. An emission factor gives information about the greenhouse gasintensity of a service or a product [kg CO2-eq./ functional unit].The purpose of this thesis is to examine how electricity, district heating …

Teknisk undersökning

Rötgaskammare för småskalig biogasproduktion

Examensarbete, grundnivå · Uppsala universitet

Biogas mainly consists of methane and carbon dioxide, where methane is theenergy-rich gas, and is naturally created when organic matter breaks down in absenceof oxygen, also known as anaerobic digestion. A biogas plant re-creates the anaerobicconditions inside a digester where …

Process optimization in the steel plant

Masteruppsats · KTH

… which changes raw coal into dry fine coal powder. The system consists of a hot gas generator, a coal mill, a bagfilter as well as various valves, fans and piping. The general idea is to burn specific gases with the help of equipments and to use them to dry the coal in the cycle …

Methane production from dairy cows

relations between enteric production and production from faeces and urine

Masteruppsats · SLU

Methane (CH4) is a greenhouse gas (GHG) that contributes to the global warming. One of the largest sources of methane is livestock, preferably ruminants which alone counted for 30% of the total agricultural anthropogenic methane emissions in the year of 2000. The reason to why …

Energieffektivisering i kommun

Kandidatuppsats · Högskolan i Halmstad

… solutions are based on a patchwork of various heat supplies, where natural gas and biogas dominate. This situation appears, since Laholm has no district heating system. The local gas dependence can be both an economic and environmental problem, when gas prices increase and the …

Syntes och egenskapskarakterisering av volframoxid framställd med magnetronsputtring

Examensarbete, avancerad nivå · Uppsala universitet

… to 25:75 at% were made using reactive sputter deposition, either with constant gas flow, or gas flow controlled by optical emission of the plasma. The hysteresis of the system, which means that a certain gas flow will cause different pressure and/or target voltage depending on …

Tahini in the shape of gas

Kandidatuppsats · Göteborgs universitet · 2011

… and the creative process behind the solo guitar piece Tahini in the shape of gas.

I sökandet efter gas och olja är allt tillåtet!

En kvantitativ innehållsanalys av Lundin Petroleums framställning i Dagens Nyheter.

Kandidatuppsats · Högskolan i Gävle

I sökandet efter gas och olja är allt tillåtet Syfte: Det övergripande syftet med denna studie är attbesvara frågan om hur gas- och oljebolaget Lundin Petroleum skildrats i Dagens Nyheter under ett års tid. Syftet fullgörs genom att studera samtliga artiklar från den avsedda …

Biogas på Wapnö

Analys av framtida energisystem

Kandidatuppsats

… agriculture currently accounts for 20 % of Sweden's total greenhouse gas emissions. A way for an agricultural company like Wapnö AB to reduce their emissions could be to utilize existing renewable energy sources within their own premises.The report's aim is to create an energy …