Essays about: "Vindtunnel"

Showing result 6 - 10 of 15 essays containing the word Vindtunnel.

  1. 6. Rig Performance Evaluation for Wind Powered Pure Car Carrier

    University essay from KTH/Marina system

    Author : Valérie Aurore Bouysses; [2020]
    Keywords : ;

    Abstract : Carrying around 80-90% of world volume of goods, the shipping industry has a considerable environmental impact. The International Maritime Organization (IMO) fixed a 50% greenhouse gases emission reduction target by 2050 with respect to 2008 levels. READ MORE

  3. 7. Wind Vector Estimation by Drone

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

    Author : EDVIN KUGELBERG; OSCAR ANDERSSON; [2020]
    Keywords : Mechatronics; Drone Simulation; UAV; Wind Measuring; WindVector Estimation; Quadcopter Project.;

    Abstract : An original approach for measuring wind speed and direction by the use ofdrones was proposed and compared to an existing one. The original approach allowed the drone to drift with the wind and use the translatory velocity for input into a non-linear estimator, while the existing approach used a stationary hovering drone and its tilt for input to an estimator. READ MORE

  4. 8. Enabling high-fidelity measurements of turbulent boundary layer flow over wing sections in the MTL wind tunnel.

    University essay from KTH/Mekanik

    Author : Fermin Mallor; [2019]
    Keywords : Fluid mechanics; aerodynamics; turbulence; RANS; wind-tunnel experiments; insert design; Strömningsmekanik; aerodynamik; turbulens; RANS; vindtunnel experiment; inlaga designen;

    Abstract : A reinforced fiber-glass model of a NACA 4412 wing profile is designed and set-up in the Minimum Turbulence Level (MTL) wind tunnel facility at KTH. The model has 65 pressure taps orifices, and the set-up includes two mounting panels designed to allow for particle image velocimetry (PIV) and hot wire anemometry (HWA) measurements of the boundary layer (to be performed in a future campaign). READ MORE

  5. 9. Proposed Design and Feasibility Study of a Hybrid-Electric Propulsion System for a Ten Passenger Aircraft

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

    Author : Fredrik Ollas; Gestur Ernir Viðarsson; [2019]
    Keywords : ;

    Abstract : This study aims to propose a hybridized version of a propulsion system for a 10-passenger aircraft and compare it to a conventional (reference) aircraft which uses a fossil fuelled turbofan for propulsion. The hybridized powertrain includes a fossil fuelled gas turbine, which is only used for producing electricity, coupled in a series configuration with a battery storage, that provide power to two electrically ducted fans. READ MORE

  6. 10. An experimental study of surface coatings to limit the impact of frosting

    University essay from KTH/Energiteknik

    Author : Carl Andersson; [2018]
    Keywords : ;

    Abstract : Heat pumps are commonly used as a way to efficiently meet heating demands. The efficiency and flexibility of Air-source heat pumps (ASHPs) have improved in recent years and is an attractive heating solution suitable for houses with lower heating demands, as it is inexpensive to purchase and install compared to other heating solutions. READ MORE