Sökning: "Optimering"

Visar resultat 26 - 30 av 268 avhandlingar innehållade ordet Optimering.

  1. 26. 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

  3. 27. Drag reduction using plasma actuators

    Författare :Romain Futrzynski; Gunilla Efraimsson; P. Henrik Alfredsson; Charles Mockett; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flow control; drag reduction; plasma actuator; DMD; LES; optimization; pulsating flow; strömningskontroll; motståndsminskning; plasma ställdon; DMD; LES; optimering; pulserande flöde; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : This thesis is motivated by the application of active flow control on the cabin of trucks, thereby providing a new means of drag reduction. Particularly, the work presented strives to identify how plasma actuators can be used to reduce the drag caused by the detachment of the flow around the A-pillars. LÄS MER

  4. 28. Regional Energy Systems with Retrofitted Combined Heat and Power (CHP) Plants

    Författare :Song Han; Yan Jinyue; Thorin Eva; Deng Shiming; Mälardalens högskola; []
    Nyckelord :Combined heat and power; Waste-to-Energy WtE ; Regional energy system; Greenhouse gases GHG ; Retrofitting; Optimization; Kraftvärme; Avfall-till-Energi; Regionala Energisystem; Växthusgaser; Uppgradering; Optimering.; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : Fossil fuel depletion, economic development, urban expansion and climate change present tough challenges to municipal- and regional-scale energy systems. Regional energy system planning, including waste treatment, renewable energy supply, energy efficiency, and climate change, are considered essential to meet these challenges and move toward a sustainable society. LÄS MER

  5. 29. A Framework for Evaluation and Design of an Integrated Public Transport System

    Författare :Carl Henrik Häll; Jan Lundgren; Peter Värbrand; Karin Brundell-Freij; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Demand responsive; public transport; public transportation; planning; optimization; simulation; Anropsstyrd trafik; kollektivtrafik; kollektivtrafikplanering; optimering; simulering; Other technology; Övriga teknikvetenskaper;

    Sammanfattning : Operators of public transport always try to make their service as attractive as possible, to as many persons as possible and in a so cost effective way as possible. One way to make the service more attractive, especially to elderly and disabled, is to offer door-to-door transportation. LÄS MER

  7. 30. Modelling LCC for Different Indoor Climate Systems

    Författare :Dennis Johansson; Avdelningen för Installations- och klimatiseringslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; kallt klimat; bostäder; kontor; skolor; samlingslokaler; inomhusklimat; VVS; uppvärmning; ventilation; luftkonditionering; livscykelkostnader; kostnader; optimering; beräkningsmetoder; beräkningsmodeller; teori;

    Sammanfattning : The indoor climate system, which serves a building with a proper indoor air quality and thermal comfort, has been predominantly designed based on the initial investment costs. A life cycle approach could improve both the economic and environmental performance since the energy use would decrease. LÄS MER