364 uppsatser · sida 24 av 25
metoder och tekniker för fröskörd av industrihampa
… materials. Over time, other applications have been developed for hemp, e.g. in energy and health products. Interesting new uses for hemp continue to be identified and this fascinating plant has incredibly versatile applications.In this project, seed production of industrial hemp …
En alternativ lösning på vår snabba stadsexpansion
… constructions of high-rise buildings. The examined areas are production costs, energy efficacy, cityscape and community related issues. To set clear boundaries regarding the reports extent, we have chosen to focus on Uppsala as a city in particular. Ultimately, the results of …
… is an important producer of logging residues (branches and tops) intended for energy production. The company wanted to increase the average dry content to 60 percent in their delivered logging residues. At the time when this study was initiated, the dry content in the chipped …
Hydropower is the largest renewable energy source available in today's society. Operation and production is handled by high-tech electronics. This thesis is done on behalf of Statkraft Sweden AB who wants to explore the possibility of replacing the hydraulic cylinder with an …
Fast pyrolysis is a method for converting biomass into three energy rich products: char, gas and bio-oil, where the latter is most interesting. Pyrolysis is an endothermic process where biomass is heated in an anaerobic environment and, with the right operating conditions, up to …
En undersökning av huruvida solceller är ett fördelaktigt energisystem med avseende på tekniska och ekonomiska aspekter
… of the study is to decide whether photovoltaic cells are an advantageous energy system to the house with respect to economical and technical aspects. The result of the study shows that solar cells has an efficiency of 14% and gives a surplus of electricity during the summer, the …
… the material 100% silk wich is organically dyed and handwoven. Silk leaves no energy-footprint and is recycable. I believe that the future will have more focus on the environment and that we will work with more ecologic materials and instead of producing new products, we will …
tekniska, ekonomiska och miljömässiga förutsättningar för fjärrvärmeproduktion med lokalt skogsbränsle
… party access could create opportunities for the agricultural sector as an energy producer. This study describes the technical, economical and environmental prerequisites for a farmer cluster to build and run a heating plant, fueled with local wood fuel. The heating plant in the …
a potential approach to hurry up shelf-life tests on oat products
… shelf-life experiments, are used further in order to calculate the activation energy (EA) for the reaction of interest. The acceleration factor (AF) factor is thereafter calculated by using mathematical equations. The AF factor converts the accelerated shelf-life estimation …
The worldwide industrial demand of energy, often in form of fossil fuel, is continuously growing and at the same time these resources are coming to an end (Hamamre, 2013). The interest and focus in renewable sources are then more important than ever and plants are suggested to …
En undersökning av alternativ till diesel som drivmedel för lastbilar
… is in many ways built with and dependent on fossil fuels, which are used for energy production as well as for transporting humans and goods. Without the oil, many of the things we take for granted would not be possible. During the last century, the use of oil has increased …
Investigation of bondning mechanisms at the pressing of metal laminates
… have been studied in detail in the scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX) and with interferenceprofilometry in Wyko, to provide a greater understanding of the mechanisms that influence the bonding in the interface between metals. The …
En jämförande studie
… analyzed using a scanning electron microscope (SEM) which was equipped with an energy dispersive X-ray spectrometer (EDS) in order to identify the elements that are present and the alloys that the objects are made of. Then the SEM results were compared with the results of …
En studie om den småskaliga vattenkraftens för- och nackdelar ur ett miljöperspektiv
Idag står vi inför flera miljöproblem som exempelvis klimatpåverkan och förlust av biologisk mångfald. Vattenkraften är en förnybar energikälla som kan producera el med låga utsläpp av växthusgaser. Sverige har en lång tradition av att utnyttja vattnet som energikälla och har …
<em>Aspekter och argument</em>
… should take in consideration, based on the ecological sustainability, are: energy consumption, waste production, greenhouse gas emissions and nitrogen oxide emissions. Suggestions for companies regarding the practical work with these environmental aspects are to focus on BREEAM …
