Sökning: "Ice loads"

Visar resultat 1 - 5 av 49 uppsatser innehållade orden Ice loads.

  1. 1. INDUCTIVE RAILWAY SWITCH POINT HEATING : Improved control algorithm and phase compensation analysis for an inductive turnout heating system, and comparison with a resistive heating system

    Uppsats för yrkesexamina på grundnivå, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Författare :Erik Nordlund; [2023]
    Nyckelord :Inductive switch point heating; Turnout heating; railway turnout heating; Inductive heating;

    Sammanfattning : Railway turnout heating is essential during the winter because snow and ice can hinder the movement of the switch. In Sweden, heating has traditionally been done using resistive heating wires mounted to the stock rail, but the technology is outdated and generally exhibits low efficiency and performance. LÄS MER

  3. 2. Inomhusklimat för simulering av hög boendetäthet i flerbostadshus

    Kandidat-uppsats, Lunds universitet/Avdelningen för Byggnadsfysik

    Författare :Linn Linderholt; Lovisa Persson; [2023]
    Nyckelord :Trångbodd; inomhusklimat; lägenhet; koldioxidproduktion; värmeproduktion; fuktproduktion; Technology and Engineering;

    Sammanfattning : In recent years overcrowding has decreased in European countries, but in Sweden overcrowding has increased, especially in the big cities. There is an ongoing problem in Swedish society regarding overcrowding that needs to be further investigated, and how these accommodations affect the design of the buildings they live in. LÄS MER

  4. 3. Analysis to reduce ice-related production losses for wind turbines

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Jhason Paran De La Cruz; [2023]
    Nyckelord :Wind power; cold climate; wind turbine icing; ice losses; ice protection systems; blade heating; de-icing; analytical dashboard; data visualization.; Vindkraft; kalla klimat; nedisning av vindkraftverk; isförluster; isskyddssystem; uppvärmning av blad; avisning; analysverktyg; datavisualisering.;

    Sammanfattning : In the rapidly growing wind energy market, regions with cold climates are currently in the spotlight owing to their abundance of wind resources. However, the operation of wind turbines in cold climate conditions is challenged by serious icing problems. LÄS MER

  5. 4. Val av värmesystem vid nybyggnation av ett flerbostadshus i mellersta Sverige : En simuleringsstudie

    Kandidat-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

    Författare :Oscar Olmats; [2023]
    Nyckelord :heat pumps; sizing; cost-efficient; capacity; geothermal heat; IDA ICE; boreholes; värmepumpar; LCC; kostnadseffektivitet; fjärrvärme; IDA ICE; effekttäckningsgrad; bergvärme; borrhål; dimensionering;

    Sammanfattning : The choice of heating system in new residential buildings has a significant effect onthe total life cycle-cost. Rising energy prices and tougher energy demands for newbuildings creates incentive for energy- and cost-efficient solutions. LÄS MER

  7. 5. Use of Digital Image Correlation for monitoring of concrete buttress dam failure model tests

    Master-uppsats, KTH/Betongbyggnad

    Författare :Jarl Jensen; Markus Leijström; [2022]
    Nyckelord :;

    Sammanfattning : The monitoring of dam structures is of great importance for the safety of the dam.A dam failure can cause disastrous consequences for people and infrastructure downstream.Dams are monitored by periodic inspections and monitoring systems. LÄS MER