364 uppsatser · sida 20 av 25
… for the pulp industry. Stump lifting has today become a possible source for bioenergy. The objectives with this study were to investigate the productivity of stump lifting and stump extraction, and to analyse the economy. Another objective was to compile existing knowledge of …
… they can´t produce enough milk from this they need to be given some extra energy in the form of concentrates. It is not an economically favorable situation for the farmer to give only forage, and since a higher amount of concentrates increase the milk production you can …
… that at the beginning of the trial had an average milk yield of 42.6 (±6,3) kg energy-corrected milk and averaged 106 ((±53,5) days in milk. The experimental design was a change-over experiment with four treatments and four periods of three weeks. Special feeding equipments were …
… are transports, machine hours, production of different materials and the energy consumption of the project. The production of the calculation tool demanded a number of inputs, such as carbon dioxide emission factors and information from the reference project like tons of …
när ska miljön få en reklampaus?
The aim of the thesis was to investigate energy consumption and carbon dioxide emissions from an advertisement broadcasted on the radio or the television or distributed through press. The object was to calculate the amount of carbon dioxide emissions per individual receiver of …
… 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. Therefore the …
… industrial agriculture with monoculture and extensive input of external energy, commercial fertilizer, and chemical pesticides are all essentially unsustainable. An adaptation to other methods of production is necessary to preserve the environment for future generations. The aim …
- med fokus på Organisk RankineCykel (ORC)
As a part of the fight against the global warming the energy production needs to be more efficient and redirected towards sustainable options. One alternative is cogeneration, which means that electricity and heat is produced in one plant. The purpose with this survey is to …
Fundamentteknik och Logistik
… these test where used to calculate the treatment effectiveness and resulting energy potential at the mill. The literature study and constituent analysis showed that toxicity of the water to be treated, due to wood extractives and sulphur content, was of concern. Detoxification …
… an important role because it affects many cellular enzymes in the body. The energy metabolism and protein synthesis are dependent on Mg as an enzyme activator, Mg is also involved in the synthesis of RNA and DNA. Absorption of Mg primarily takes place over the ruminal epithelium …
… whole year around. However, drying apple pomace demands large quantities of energy. An alternative way to feed cattle all the year around would be to store the apple pomace as ensilage. This is a sensitive process that demands correct storage and qualified performance in order …
En granskning av fyra miljökonsekvensbeskrivningar
… enterprise. Those are long-term systematicwork, monitoring of outcome, energy efficiency gains and communication throughenvironmental labels. Long-term systematic work has contributed to increased credibility,more efficient production and lower environmental impact. EVA has …
En fallstudie av tryckeriet Edita Västra Aros AB
… enterprise. Those are long-term systematicwork, monitoring of outcome, energy efficiency gains and communication throughenvironmental labels. Long-term systematic work has contributed to increased credibility,more efficient production and lower environmental impact. EVA has …
Future support to biogas production in Sweden
Energimyndigheten har från Regeringen blivit tilldelad 100 miljoner kronor att fördela som investeringsstöd för att främja en effektiv och utökad produktion, distribution samt användning av förnybara gaser såsom biogas. Myndigheten har samtidigt fått i uppdrag att utveckla en …
… bone resorption) were analyzed. Fresh crop and silages were analyzed for DM, energy, crude protein and minerals and DCAD was calculated using ([Na+] + [K+]) ? ([Cl-] + [S-]). The results showed that the degree of hypocalcaemia at calving was not affected by a lower DCAD or an …
