Sökning: "Dense gas"
Visar resultat 11 - 15 av 33 uppsatser innehållade orden Dense gas.
11. An Infrared Stellar Thermometer
Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisationSammanfattning : Infrared (IR) spectroscopy has many advantages over optical, one of which is allowing us to see through intergalactic dust, letting us probe deeper into space and dust-dense regions such as galactic centers. However the investigating the IR spectral range is a relatively new field, owing to recent developments in detector technology, and stellar parameter determination in IR is not well researched. LÄS MER
12. Development of a porous material from cellulose nanofibrils
Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologiSammanfattning : Cellulose nanofibrils are a biobased and renewable material with potential to be used in many different applications. Such applications include air filtration, absorption of liquids, and thermal insulation. To be used for these applications the cellulose nanofibrils must form a porous and dry material. LÄS MER
13. A reverse data-driven energy estimation approach for evaluating renewable energy systems implementation in New York City
Master-uppsats, Lunds universitet/Institutionen för arkitektur och byggd miljö; Lunds universitet/Avdelningen för Energi och byggnadsdesignSammanfattning : Urban areas are responsible for a significant part of greenhouse gas emissions. Megacities, especially, have cumulative impacts due to different anthropogenic heat sources and urban heat island phenomena. It is therefore vital to replace fossil fuel burning heating sources with renewable sources in the current building stock. LÄS MER
14. Techno-economic Optimization for Large-Scale Power-to-methane Systems : Techno-economic modeling, design and optimization of a large scale 2.0 TWh/y solar-to-methane plant concept in Australia
Master-uppsats, KTH/Kraft- och värmeteknologiSammanfattning : Industrialized societies are built on the limited, extraordinary dense form of energy that are the fossil fuels: coal, oil, and gas, that became the core driver of the economic growth since the industrial revolution. While most emission pathways highlight the necessity to reach net zero emissions before 2050, there are numerous challenges to the displacement of fossil fuels by renewable energy systems (local conditions, intermittency, raw materials) and applications to the most polluting sectors such as transportation remain a major challenge. LÄS MER
15. Hydrogen - The future fuel for construction equipment? : A well to tank analysis of hydrogen powered machine applications at Volvo CE
Uppsats för yrkesexamina på avancerad nivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknikSammanfattning : As the world is moving towards a more sustainable energy perspective, construction equipment sees the requirement to change its current way of operation with fossil fuels to reduce its environmental impact. In order to pursue the electrification of construction equipment a dense power source is essential, where hydrogen powered fuel cells have the potential to be a sufficient energy source. LÄS MER
