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Showing result 1 - 5 of 664 essays matching the above criteria.

  1. 1. Val av trädkvalitet i urban miljö : trädstorlekens påverkan på etablering vid nyplantering

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Emanuel Cantillana; [2024]
    Keywords : Trädplantering; etablering; mindre kvaliteter; urbana träd;

    Abstract : Etablering av nyplanterade träd i urbana miljöer kan komma med vissa svårigheter då träden ofta möter tuffa ovan- och underjordiska förhållanden. Detta gäller sådant som vandalisering, torka och bristfällig jordkvalitet. READ MORE

  3. 2. Solar Photovoltaic Thermal Collectors and Ground Source Heat Pumps for Commercial Buildings : Case study in Sweden

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Doris Dijak; Elin Torstensson; [2023]
    Keywords : Ground Source Heat Pump; Photovoltaic Thermal Collectors; Borehole Thermal Energy Storage; Free Cooling.; Bergvärmepumpssystem; Termiska Solceller; Borrhålsbaserade Termiska Energilager; Frikyla.;

    Abstract : In order to reduce emissions from the building sector, which stands for than a fifth of the global energy consumption today, efficient and fossil free heating and cooling systems are of importance. This study investigates the combination of solar photovoltaic thermal collectors and ground source heat pump systems in order to regenerate energy to the ground in combination with free cooling. READ MORE

  4. 3. Customizable Contraction Hierarchies for Mixed Fleet Vehicle Routing : Fast weight customization when not adhering to triangle inequality

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Martin Larsson; [2023]
    Keywords : Contraction Hierarchies; Customizable Contraction Hierarchies; Vehicle Routing Problem; Battery Electric Vehicles; Mixed Fleet; Kontraktionshierarkier; Anpassningsbara Kontraktionshierarkier; Ruttplanering; Batteridrivna elfordon; Blandad fordonsflotta;

    Abstract : As the transport industry shifts towards Battery Electric Vehicles (BEVs) the need for accurate route planning rises. BEVs have reduced range compared to traditional fuel based vehicles, and the range can vary greatly depending on ambient conditions and vehicle load. READ MORE

  5. 4. Impact of production strategies on inventory management - A case study at a Paper Mill

    University essay from Linköpings universitet/Kommunikations- och transportsystem; Linköpings universitet/Tekniska fakulteten

    Author : Zakariya Ali; Josef Qya; [2023]
    Keywords : Produktionsstrategi; hybridsystem; lagerstyrning; lagerkostnader; genomloppstid; lägstalagernivå; pappersbruk; nyckeltal; Industriell ekonomi; Industriell ekonomi;

    Abstract : Kundundersökningar har visat att det undersökta pappersbruket bör förbättra sina leveransledtider. En lösning för detta anses vara en förändring av nuvarande produktionsstrategi. READ MORE

  6. 5. Benchmarking a 1 kW hybrid hydrogen fuel cell system

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Jonathan Envall; [2023]
    Keywords : PEMFC; fuel cell; UAV; hybrid; Technology and Engineering;

    Abstract : Unmanned Aerial Vehicles (UAV's) offer great versatility in the tasks that they may perform and they are today used in many sectors. The H24LEO project, administered by the Lund University School of Aviation, aims to develop and demonstrate a hybrid proton-exchange membrane fuel cell-powered UAV to aid in search and rescue operations performed by the Swedish Maritime Administration, and reduce the greenhouse gas emissions compared to similar work performed by helicopters. READ MORE