Sökning: "Fan performance."

Visar resultat 11 - 15 av 101 uppsatser innehållade orden Fan performance..

  1. 11. Mitigating Post-Harvest Losses in Bhutan through Solar Food Drying: Optimization and Analysis

    Master-uppsats, Lunds universitet/Institutionen för arkitektur och byggd miljö; Lunds universitet/Avdelningen för Energi och byggnadsdesign

    Författare :Christian Rissler; [2023]
    Nyckelord :Solar dryer; Ginger; Drying; Bhutan; Heat exchanger; Heat storage; Solar absorber; Drying rate; Air flow; Technology and Engineering;

    Sammanfattning : Bhutan is the world’s most mountainous country which comes with some logistical difficulties. Due to slow transportation times and lackluster food preservation are the post-harvest losses high which especially affects the rural parts of Bhutan negatively. LÄS MER

  3. 12. Design and Simulation of a 10kW High-Efficiency Dual Active Bridge Converter

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Fan Yang; [2023]
    Nyckelord :Converter Design; Dual Active Bridge; Single Phase Shift Modulation; Extended Phase Shift Modulation; Efficiency Estimation; Konverterdesign; Dual Active Bridge; Single Fas Shift Modulation; Extended Phase Shift Modulation; Effektivitetsuppskattning;

    Sammanfattning : The EU has proposed an ambitious goal to achieve widespread E-mobility in both the electrical and commercial sectors. To accomplish this, a substantial number of DC fast-charging stations must be built. LÄS MER

  4. 13. A parametric study of the static and dynamic performance of timber arch footbridges with different hanger configurations

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :ALEJANDRO GARCÍA GARCÍA; [2022]
    Nyckelord :Arch bridges; footbridge dynamics; critical load; bridge typology; parametric study;

    Sammanfattning : The influence of the hanger configuration in the arch and deck bending moments under asymmetric loads is widely used nowadays for improved designs of arch bridges. In this work, by means of a parametric study, those hanger configurations that most efficiently increase both the natural frequencies and buckling factors are identified, simultaneously evaluating the dynamic and static performance of timber arch footbridges. LÄS MER

  5. 14. Heat-pipes in electric machines : Heat management in electric traction motors

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Anton Olofsson; [2022]
    Nyckelord :Heat-pipe; Heat pipe; FEM; LPM; Traction motors; Induction motor; Heat management;

    Sammanfattning : The world is continually changing towards more energy efficient alternatives and less pollution. For the traction market, electric powertrains have become the go-to method, superior to both steam and diesel-electric hybrid systems. LÄS MER

  7. 15. Improving the Robustness, Thermal and Noise Performance of a Radio Transmitter Fan Tray

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Mattias Olausson; Selma Rahman; [2022]
    Nyckelord :Fan tray; Heat dissipation; Robustness; Radio transmitter; Noise performance; Fläktlåda; Värmeavledningsförmåga; Robusthet; Radio sändare; Ljudprestanda;

    Sammanfattning : With the growing demand of compact radio transmitters, so do the need for silent and efficient thermal management systems. Given the restricted form-factor, ensuring robustness of a unit with a detachable fan tray imposes a challenge. LÄS MER