364 uppsatser · sida 5 av 25
… the viscose and lyocell processes depends on: chemicals used in the process, energy and energy source, the possibility of purifying emissions to air and water and recycling of energy and chemicals. Depending on the raw materials used for pulp production, differences in land use …
Energibesparingsåtgärder vid blekeri 4 & 5 med jämförelse mot ny utrustning
… The centrifugal pumps are controlled by throttle valves, which result in an energy loss. Chemical mixers are used to mix ClO2 into the pulp before proceeding into a holding tower where the bleaching process occurs. The energy demand of the different positions has been measured …
En studie gällande utvärdering av omrörningssystem vid Ekeby reningsverk
Biogas is a renewable energy produced through anaerobic digestion, which means that organic matter is degraded by microorganisms under anaerobic conditions. The produced biogas can then be used for cogeneration, electricity, heat or upgraded to vehicle gas. Eskilstuna Energy & …
en empirisk undersökning av svenskproducerade biodrivmedels påverkan på åkermarkens användning
… is an important part of achieving the EU’s target of 10 percent renewable energy in the transport sector. However, the competition between biofuels and food production is an ongoing concern. Also, several studies have indicated a significantly higher climate impact than was …
We are heading towards a huge switch of how energy is produced with fossil fuels being replaced by renewable energy sources. It is not difficult to replace the energy you use in the house and there is no need for futuristic technology. There are already many established products …
… Artificial sweeteners in beverage and their effecton hunger and energy intakeAuthor: Sofia Andersson and Sofia JakobssonSupervisor: Heléne Bertéus ForslundExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: April …
Utvärdering av energieffektiva besparingsåtgärder
… thesis is to investigate different types of measures for making buildings more energy efficient and to estimate their profitability. The calculations were performed with the building simulation program VIP+ and the evaluation of the profitability with the life cycle cost method …
… show changes in climate caused by our load and exhaust of resources. The energy usage contributes to a big part of it, by its emission of carbon dioxide. The built environment uses around 40 % of the total energy consumption in Sweden and requests to strongly reduce it are …
en jämförelse mellan tre alternativ
… in terms of practical viability, economical aspects, environmental impact and energy inputs/outputs. The method was exemplified by the specific case of Karlskoga. The methodological framework for the environmental and energy analysis was life cycle analysis theory. The residue …
… by hand, but the rest of the processes are handed by machines which consumes energy. This conduce emissions like carbon dioxide, methane gas and nitrous oxide. The cotton farming is settled in Peru, and from there the textile is sent via Sweden to Estonia to become a shirt. This …
-Ur ett tekniskt och ekonomiskt perspektiv
… in Sweden in recent years has also contributed to increased interest in energy-efficient buildings. The process of developing a modern family home in Kiruna, Sweden is presented the first part of this paper. The house has been designed to withstand very high stresses from snow …
växthusgaser, energi- och resursanvändning i modellstudie
… the effects on a simulated wastewater plant regarding GHG emissions and use of energy and resources when implementing source separated wastewater systems. The effects were studied for different restrictions of effluent quality and for different temperatures on the influent. The …
… has led to an increased interest forenvironmentally friendly and renewable energy sources, such as biogas. Planning new biogasplants requires a decision basis including facts about approximate amounts of biogas possibleto produce at the plant. The purpose of this thesis is to …
a study based on the Swedish agricultural sector
The energy sector of modern time is currently faced with several challenges. These are both production oriented and environmental oriented in nature. The energy of the future is intended to support an increasing demand while at the same time reduce its environmental affection …
Kontorsbyggnad med solvärmeproduktion - en fallstudie
The demand for environmental assessments on buildings and energy consumption is increasing as well as the energy performance requirements for buildings. At the same time it is increasingly common with self-producers of heat and electricity generation. The main purpose with this …
