364 uppsatser · sida 15 av 25
… A production increase of 5% could be seen together with a lowered specific energy consumption which is extremely satisfactory results. Unfortunately a breakdown of the system occurred a bit down the path of optimisation that resulted in damages to the kiln. At this stage the …
Rötgaskammare för småskalig biogasproduktion
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 …
… condition have been proved to be inflammation of the uterus and shortage of energy during the first weeks of lactation.Due to the facts I have come across, I have come to the conclusion that a cystic ovarian follicle is a reproductive distress syndrome with a metabolic origin …
… on a surface. One way is to start with a material with low surface energy and create micro and nanostructures upon it to make it ”rough”. Another way is to take an already rough surface and modify it with a low surface energy material. The outer layer on Oxel´s wind turbines are …
Festivaltält i papper
… is purchased very cheaply, for a single festival. These tents require a lot of energy in manufac- ture and transport, they are not made to be easily sorted at source or re-used despite it’s extremely short life cycle. The project idea is to design a tent adapted to a festival …
The energy in laundry rooms, in form heated air, can be utilized with a heat exchanger. A concept and an early prototype of the heat exchanger have already been developed to show that the theory works. This report describes the continued development and construction of the …
With background in the rapidly growing need to find solutions for sustainable energy production and the increasing interest for wind power, this report was written. With take-off point from the wind power plant Big Glenn, which has been built in the harbour of Gothenburg, a …
With background in the rapidly growing need to find solutions for sustainable energy production and the increasing interest for wind power, this report was written. With take-off point from the wind power plant Big Glenn, which has been built in the harbour of Gothenburg, a …
… (photovoltaic) systems, in Australia. Due to the global warming, sustainable energy has in recent years become an increasingly important issue, both internationally and in Australia. With one of the largest dependencies on fossil energy sources in the world, the country's …
Ocean Thermal Energy Conversion (OTEC) is a technology that utilizes the temperaturedifference in oceans between the warm surface water and the cold water at 1000 m depthto produce electricity. The purpose of this report is to investigate if OTEC with its synergiescould become a …
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” …
… this work was to investigate market opportunities for bottom ash from Åmotfors Energy, with the goal to be a background basis for an application of the use of bottom ash outside the landfill area. The results of analyzes shows that the bottom ash from Åmotfors Energy is …
a sunny story?
In Sweden there is a large interest in renewable energy but the market for solar power is still small compared to other countries such as Germany. Here many farmers produce their own electricity. The Federation of Swedish farmers have acknowledged the potential for Swedish …
… nitrogen utilization and profitability. Feed efficiency is defined as kg energy corrected milk per kg dry matter intake in the present study, while nitrogen efficiency represents the nitrogen used for salable product in relation to total nitrogen intake. Separate feeding is …
A clean and affordable energy source for cooking is deficient in developing countries. People rely on fuels that contribute to environmental, social and health problems.Biogas is an alternative energy source and an increased investment in small-scale biogas production can in …
