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Showing result 1 - 5 of 96 essays matching the above criteria.

  1. 1. Investigation of different ventilation profiles to avoid stratification in Nearly Zero Energy Buildings

    University essay from Högskolan i Gävle/Energisystem och byggnadsteknik

    Author : Alazne Irene Varela Santana; [2023]
    Keywords : stratification; water model; comfort; mixing; temperature; potential energy; net zero energy building;

    Abstract : This research paper examines possible solutions for the problems that warm air heating is suffering in Nearly Zero Energy Buildings. These NZEBs are passive houses constructed to have high energy efficiency where the quantity of power used is equal to the power created annually, produced locally or in the surroundings by renewable energy sources. READ MORE

  3. 2. Skattning av HGV och stamvolym med data från stereomatchade drönarbilder genom befintliga modeller från Skogliga grunddata

    University essay from SLU/Dept. of Forest Resource Management

    Author : Erik Forslöw; [2023]
    Keywords : drönare; stereofotogrammetri; skogliga grunddata; skogsbruksplanläggning;

    Abstract : Inom den svenska skogsbruksplanläggningen sker idag datainsamlingen traditionellt med subjektivt fördelade relaskopsytor. Den subjektiva mätningen varierar mellan och inom planläggare och har generellt ett relativt medelfel (rRMSE) på 9 % för grundytevägd medelhöjd (HGV) och 15–20 % for volym/ha. READ MORE

  4. 3. The influence of the built environment on the climate in different Swedish urban fabrics

    University essay from Högskolan Dalarna/Institutionen för information och teknik

    Author : Reem Mutwali; [2023]
    Keywords : Urban heat island; Urban morphology; The urban weather generator;

    Abstract : The urban heat island effect is usually disregarded when considering energy-efficient measures for the built environment. This study aims to present and analyze the effect of the urban built environment on the Swedish urban climate. This analysis is done in terms of assessing the mean urban heat island and monthly average air temperature. READ MORE

  5. 4. Streamlining 3D City Modeling for Urban Flow Simulations by Automatic Integration of Multisource Topography

    University essay from Umeå universitet/Institutionen för fysik

    Author : Klara Lindroth; [2023]
    Keywords : automatic 3D city models; surface reconstruction; geometry pre-processing; CFD; OSM height attributes;

    Abstract : In the workflow of computational fluid dynamics, geometry preparation is commonly the most time-consuming step. For a fast CFD simulation, automatic surface reconstruction to obtain 3D city models for a chosen area is essential. To address this need, a literature study was conducted to map available data suitable for 3D city models. READ MORE

  6. 5. Are Skyscrapers Too Tall? : The Case of Southern Stockholm

    University essay from Umeå universitet/Institutionen för geografi

    Author : Alvar Elmgren; [2023]
    Keywords : Skyscrapers; Shadows; Visibility; Tellus Towers; Sweden;

    Abstract : The number of skyscrapers are increasing rapidly across the world. Interest is growing considerably in places such as Asia and Europe. Because of their height skyscrapers have a strong symbolic value and can help a city attract interest. READ MORE