35 uppsatser · sida 2 av 3
Electricity production from renewable energy resources such as wind energy and photovoltaics is variable. Integration of these intermittent resources into the electricity system leads to new challenges in how to manage imbalance between supply and demand on the grid. One way to …
… greater industries and larger infrastructures causes an increase of the global energy consumption. This harvest of energy puts a great stress on the global environment. With this development, it becomes increasingly important to utilize energy resources in the best possible way …
… (2009), almost all respondents consider the use of some form of alternative energy from the farm. While interest in alternative energies is large, attention to the alternative energy straw has fallen and is almost nowhere mentioned in the literature today. Three years ago, in …
en studie om hur lantbrukare fattar beslut vid investering i halmpanna
… (2009), almost all respondents consider the use of some form of alternative energy from the farm. While interest in alternative energies is large, attention to the alternative energy straw has fallen and is almost nowhere mentioned in the literature today. Three years ago, in …
… is greater than ever.The goal of this project is to develop a concept for energy-efficient speakers withwireless communication that has the ability to obtain and play high quality music. Thespeakers will use the latest available technology and at the same time, using …
… in a proper way. The transportation from China could be more effective. The energy consumption in the user phase is strongly dependent on the way the mobile phone is used. When it comes to energy efficiency Sony Ericsson has been focusing on the chargers. A mobile phone is used …
… Despite this, a significant proportion of material is still directed toward energy recovery, highlighting the need for further development of systems for circular resource management.
Empatins betydelse för frivilligas engagemang
… in the number of cyclists results in less pollution, less consumption of energy, less noise damage and less consumption of non-renewable resources. Seen from a social point of view, cycling is shown to have good effects on the public health. Moreover, it promotes equality and …
Cyklisters preferenser i trafiken
… in the number of cyclists results in less pollution, less consumption of energy, less noise damage and less consumption of non-renewable resources. Seen from a social point of view, cycling is shown to have good effects on the public health. Moreover, it promotes equality and …
En jämförande systemanalys avseende exergi, miljöpåverkan samt återföring av närsalter
… Sjöstad pilot plant. In the study the systems are compared considering energy, exergy and recirculation of nutrients. The VSEP-technique has some advantages compared to the conventional system as it ensures that a large part of the nutritional content in the wastewater can be …
… sludge process and a chemical treatment. These processes are not very energy efficient and may not be the most environmentally friendly. That is why it is interesting to evaluate new alternative methods to see if they can be less harmful to the environment and help to a lower …
Jämförelse mellan tre utvecklade versioner av ett vattenvärmedrivet torkskåp
… fully loaded. Version A's low air flow gave long drying times and poor energy efficiency (SMERTot). Version B had a better flow and therefore gave better results in drying times and efficiency (SMEREl and SMERTot). The redevelopment of Version C mounted a larger fan which …
Med hja?lp av livscykelanalys
… considered within the study were extraction and production of materials, energy use of machines, transports, recycling and waste. The environmental categories that the study estimated were taken from Eco-indicator 99 and the categories were ”human health”, ”ecosystem quality” …
… 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 …
a review of eco-efficiency
… some of these challenges. The aim of eco-efficiency is to reduce the amount of energy and materials used in production processes to achieve economic and environmental benefits (WBCSD, 2000). In particular, eco-efficiency indicators (EEI) were developed, some tailored for …
