Search for dissertations about: "wind building"

Showing result 1 - 5 of 74 swedish dissertations containing the words wind building.

  2. 1. Sound propagation around off-shore wind turbines

    Author : Lisa Johansson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wind turbine noise; off-shore wind powe; long-rage sound propagation; parabolic equation; scattering; water waves; Building engineering; Byggnadsteknik;

    Abstract : Low-frequency, long-range sound propagation over a seasurface has been calculated using a wide-angel Cranck-NicholsonParabolic Equation method. The model is developed toinvestigate noise from off-shore wind turbines. Thecalculations are made using normal meteorological conditions ofthe Baltic Sea. READ MORE

  4. 2. Noise from wind turbines

    Author : Olivier Fégeant; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; masking; vibration transmission; diffraction; ambient noise; pseudo-noise; cylindrical shell. Perturbation methods; structural mobility; axoustic outdoor measurement; Building engineering; Byggnadsteknik;

    Abstract : A rapid growth of installed wind power capacity is expectedin the next few years. However, the siting of wind turbines ona large scale raises concerns about their environmental impact,notably with respect to noise. READ MORE

  5. 3. Wind-induced vibrations in tall timber buildings : Design standards, experimental and numerical modal analyses

    Author : Pierre Landel; Andreas Linderholt; Marie Johansson; Sigurdur Ormarsson; Petter Juell Nåvik; Linnéuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tall Timber Building; Wind-Induced vibration; Along-Wind Acceleration; Modal Analysis; Forced Vibration Test; Finite Element Model Reduction; Truss; Semi-Rigid Connection; Bâtiment en Bois de Grande Hauteur; Vibration Induite par le Vent; Accélération Parallèle au Vent; Analyse Modale; Test de Vibration Forcée; Réduction de Modèle aux Eléments finis; Poteau Treillis; Connexion Semi-Rigide; Hög Trähus; Vindinducerad Vibration; Acceleration Längs med Vinden; Modalanalys; Forcerat Vibrationstest; Finita Element Modellreduktion; Fackverk; Halvstyva Förband; Maskinteknik; Mechanical Engineering; Byggteknik; Civil engineering;

    Abstract : Climate change and densification of cities are two major global challenges. Inthe building and construction industry, there are great expectations that tall timberbuildings will constitute one of the most sustainable solutions. First, verticalurban growth is energy and resource-efficient. READ MORE

  6. 4. Heat transfer through a well insulated external wooden frame wall : an investigation of the effects of normal defects in the insulation resulting from incident wind and air flow through the wall

    Author : Peter Roots; Avdelningen för Byggnadsfysik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Building construction; Electrical conduits.; Nogging pieces; Airgaps; Breaks in the insulation; Variations in the insulation; Through wind; Forced convection; Incident wind; Byggnadsteknik;

    Abstract : The heat requirement of a building can turn out to be greater than was calculated at the design stage. The reason for this may be that heat transport though the building envelope is greater than expected. This in turn can be due to the structure not fulfilling the design requirements in respect of windtightness and airtightness. READ MORE

  7. 5. Probabilistic Modelling of Air Infiltration and Heat Loss in Low-Rise Buildings

    Author : Krystyna Pietrzyk; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ventilation; heat loss; reliability; leakage; air infiltration; risk analysis; thermal transmittance; probabilistic model; wind; building physics;

    Abstract : A probabilistic model (PROMO) of air exchange and heat loss in a low-rise building with a lightweight construction is proposed. The probability distributions of the air change rate and of the heat loss are the main outputs of the model. READ MORE