Sökning: "Clean technologies"

Visar resultat 11 - 15 av 126 uppsatser innehållade orden Clean technologies.

1. 11. ENERGY ISLANDS - A CASE STUDY IN GREECE

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Dimitrios Porichis; [2023]
   Nyckelord :Renewable Energy Sources; Energy Island; Multi-Criteria Decision Analysis; Offshore Wind; Floating Solar Photovoltaics; Greece; Mediterranean Sea; Aegean Sea.;

   Sammanfattning : The aim of this Thesis is to consider a methodological framework suitable to support a primary and primitive investigation and evaluation of the technical applicability and energy feasibility of a specific Energy Island model in Greece. For such purpose, the general concept and the potential applications of Energy Island are presented, and the present situation of the Greek energy sector and RES technologies in Greece are outlined. LÄS MER

3. 12. A Techno_Economic Feasibility Study of a Cryptocurrency Data Center Based on Renewable Energy : A feasibility Study of a Bitcoin Mining Farm Powered by Solar and Wind Energy.

   Master-uppsats, Uppsala universitet/Institutionen för samhällsbyggnad och industriell teknik

   Författare :Ali Wali; [2023]
   Nyckelord :Datacenter; Cryptocurrency; Mining Farm; Renewable Energy; Hybrid Energy System; Solar and Wind energy; Electricity Storage Medium; Feasibility Study; Financial Analysis; Reliability; Optimization.;

   Sammanfattning : The increasing popularity and improvements in the blockchain technology that offers decentralized communication and transactions in the form of cryptocurrencies that have now days a market value of almost 1.3 Trillion dollars and a huge potential to contribute to other fields such as health care, financial transactions, information technology, secure data exchange, data storage and many others has been pushing towards more integrating of renewable energies in this field. LÄS MER

4. 13. Research on the Hydrothermal Conversion of Xylose Catalysed by CO2-H2O into Furfural

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Robert Liao; [2023]
   Nyckelord :;

   Sammanfattning : Agricultural waste treatment and carbon dioxide emissions from fossil fuel combustion have been critical challenges for sustainable development. This work is part of a study on converting straw into biofuels, which involves using xylose as the material, carbon dioxide (CO2) as the catalyst, and water (H2O) and Gamma-Valerolactone (GVL) as the solvent to produce furfural through hydrothermal conversion. LÄS MER

5. 14. Life Cycle Assessment of Lightweight Electric Motorbikes : Case Study - RIDECAKE

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :Savitri Visvanathan Englert; [2023]
   Nyckelord :nvironmental impact; two-wheel motorcycle; lithium-ion battery; transportation; BEV Battery Electric Vehicle ; Life Cycle Assessment LCA ; miljöpåverkan; våhjulig motorcykel; litiumjonbatteri; transport; BEV Batteri elektriskt fordon ; Life Cycle Assessment LCA ;

   Sammanfattning : The electric vehicle segments of companies have broadened, and their sales have increased in the past decade. The electric motorcycle sector is growing fast, with improved technology on electric powertrains, increased ranges, charging speeds, and infrastructure. LÄS MER

7. 15. Fabry Pérot Nanocavity Produced via Solution Methods

   Master-uppsats, Uppsala universitet/Materialfysik; Uppsala universitet/Fysikalisk kemi

   Författare :Stylianos Kioumourtzoglou; [2023]
   Nyckelord :Plasmonics; Photocatalyis; Fabry Pérot nanocavity;

   Sammanfattning : Plasmonics have attracted significant attention from the scientific community for photoelectrode technologies since they offer tunability, large light absorption cross-sections, transparency and potential scalability. On the downside, plasmonics exhibit large absorption cross sections in a narrow window compared to the total electromagnetic spectrum, leading to relatively small efficiencies. LÄS MER