Sökning: "vatten och energisystem"

Visar resultat 21 - 25 av 27 avhandlingar innehållade orden vatten och energisystem.

  1. 21. Island-based Polygeneration Systems : On the Feasibility of Solar-Biomass-driven Distributed Concepts

    Författare :Moritz Wegener; Anders Malmquist; Andrew R. Martin; Antonio Isalgué; Natasa Nord; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polygeneration; Distributed energy systems; Biomass; Solar energy; PV-Battery; Small-scale energy systems; techno-economic analysis; Island-based systems; Energy Technology; Energiteknik;

    Sammanfattning : The colossal risks and challenges posed by climate change require innovative solutions that must fulfil energy service demands sustainably. The concept of small-scale, biomass-based polygeneration (SBP) is one such technological approach, which optimizes locally supplied fuels to provide several energy services like electricity, heating, cooling, potable water, and/or bio-chemical products. LÄS MER

  3. 22. On Hybrid Fuel Cell and Battery Systems for Maritime Applications

    Författare :Ariel Chiche; Carina Lagergren; Göran Lindbergh; Ivan Stenius; Lars Eriksson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fuel Cell; Autonomous Underwater Vehicles AUVs ; Hybridization; Optimization; Buoyancy; Battery; Hydrogen Storage; Oxygen Storage; Dead-End Anode; Purge; Bränslecell; autonom undervattensfarkost AUV ; hybridisering; optimering; flytkraft; batteri; vätgaslagring; syrelagring.; Chemical Engineering; Kemiteknik; Chemical Engineering; Kemiteknik;

    Sammanfattning : Hydrogen is seen as a key player in leading to a sustainable energy sector and decarbonizing the transport sector. Proton Exchange Membrane Fuel Cells (PEMFCs) consume hydrogen and oxygen to generate water, heat and electricity. LÄS MER

  4. 23. Enhancing the Treatment of Systems Integration in Long-term Energy Models

    Författare :Manuel Welsch; Mark Howells; Erik Ahlgren; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power system models; Energy system models; Resource system models; Smart Grids; Operating reserve; Biofuels; Sub-Saharan Africa; Ireland; Mauritius; ; kraftsystemmodeller; energisystemmodeller; resursmodeller; smarta elnät; operativ reservkapacitet; biobränslen; Afrika söder om Sahara; Irland; Mauritius; ; SRA - Energy; SRA - Energi;

    Sammanfattning : Securing access to affordable energy services is of central importance to our societies. To do this sustainably, energy systems design should be – amongst other things – environmentally compliant and reconcile with the integrated management of potentially limiting resources. LÄS MER

  5. 24. Solid Oxide Fuel Cell Modeling at the Cell Scale - Focusing on Species, Heat, Charge and Momentum Transport as well as the Reaction Kinetics and Effects

    Författare :Martin Andersson; Värmeöverföring; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SOFC; anode-supported; modeling; CFD; charge species heat momentum transport; electrochemical internal reforming reactions; TPB; area-to-volume ratio; COMSOL Multiphysics;

    Sammanfattning : Fuel cells are electrochemical devices that directly transform chemical energy into electricity. They are promising for future energy systems, since they are energy efficient, able to use renewable fuels and, when hydrogen is used as fuel, there are no direct emissions of greenhouse gases. LÄS MER

  7. 25. Makten över energin : policyprocesser i två kommuner 1977–2001

    Författare :Jenny Palm; Jane Summerton; Mats Bladh; Agneta Blom; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Policy; power; system; energy; municipalities; supply; energy conservation; environment; agenda 21; Sweden; Linköping; Norrköping; Energi; Kommun; Linköping; Norrköping; Policy; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : Municipalities have traditionally played key roles in the Swedish energy system as suppliers of gas, electricity and district heating to the public sector and end-use consumers. Sweden has a tradition of strong local self-government, and the municipalities are expected to play important roles in implementing national energy strategies and formulating municipal ones. LÄS MER