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Showing result 1 - 5 of 10 essays matching the above criteria.

  1. 1. Geometric comparison of 3D city models for daylight simulations

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Johannes Lande Nyborg; [2022]
    Keywords : Geography; Physical Geography; Ecosystem Analysis; 3D city model; 3D building models; daylight access; daylight simulations; obstruction angle; free and open-source software; sustainable urban development; Geomatics; Earth and Environmental Sciences;

    Abstract : As cities keep densifying, essential resources such as daylight access become increasingly restricted. Therefore, prioritizing energy efficiency and enhancing the energy performance of our buildings is required for obtaining a sustainable urban environment. READ MORE

  3. 2. Evaluation of the new Power & Biomass to Liquid (PBtL) concept for production of biofuels from woody biomass

    University essay from KTH/Kemiteknik

    Author : Robert Dahl; [2021]
    Keywords : PBtL; Fischer-Tropsch Synthesis; Biofuels; ASF product distribution; Aspen Plus; PBtL; Fischer-Tropsch syntes; Biobränslen; ASF produktfördelning; Aspen Plus;

    Abstract : I den här rapporten utvärderas det nya konceptet Power & Biomass to Liquid (PBtL). PBtL är ett alternativ till den tidigare och mer etablerade Biomass to Liquid (BtL) processen. Med PBtL förbättras utbytet av kol jämfört med BtL genom att elektricitet läggs till i processen. READ MORE

  4. 3. Impact from flexible operation on High Head Francis turbines

    University essay from KTH/Hållfasthetslära (Avd.)

    Author : Andreas Skorpen; [2018]
    Keywords : ;

    Abstract : Today the European energy grid contains more renewable energy sources than ever before, yet there is little to no research on how the increased amount affects the cost structure of the remaining energy sources of the grid. A consequence of phasing more renewable energy sources into the power grid, is a reduction of the overall balancing capacity of the grid. READ MORE

  5. 4. Validation of a vortex panel method for aerodynamics and aero-elasticity of Wind Turbine

    University essay from KTH/Kraft- och värmeteknologi

    Author : Antoine Thibierge; [2018]
    Keywords : ;

    Abstract : Ardema3D is a new type of vortex free model code that can simulate wind turbines. This code has been developed in order to replace the state of the art model, the blade element momentum (BEM). READ MORE

  6. 5. Multi-agent autonomous target tracking using distance-based formations

    University essay from KTH/Reglerteknik

    Author : Rasmus Ringbäck; [2017]
    Keywords : ;

    Abstract : In this thesis, the problem of cooperative control of a system of autonomous agents for targettracking is studied, with special focus on autonomous surface vehicles and minimizing theenergy usage in the system. By separating the control problem into two different parts, weindependently calculate the coordination scheme of the system using virtual agents withsingle integrator dynamics and design the control of the actual agents to follow the virtual. READ MORE