Sökning: "temperature reduction"

Visar resultat 1 - 5 av 400 uppsatser innehållade orden temperature reduction.

  1. 1. Återladdningsförmågan hos en Bergvärmepump

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

    Författare :Felix Johansson; [2020]
    Nyckelord :;

    Sammanfattning : Geothermal energy that is being used for space heating with help of heat pumps is getting more and more common. In Sweden 2016, there was over 300 000 different facilities using geothermal energy with the help of bore hole heat exchangers, so called ground source heat pumps (GSHP). LÄS MER

  2. 2. Rock cavern as thermal energy storage

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Energivetenskap

    Författare :Simon Berglund; [2020]
    Nyckelord :Rock cavern; Waste heat; District heating; Intermittent operation; Sustainability; Heat storage; Carbon dioxide reduction; Bergrum; Spillvärme; Fjärrvärme; Intermittent drift; Hållbarhet; Värmelagring; Koldioxid reducering;

    Sammanfattning : In the fall of 2019, a comprehensive idea study was conducted on heat storage in two rock caverns located at Näsudden in Skelleftehamn and was part of the project course "Energiteknik, huvudkurs" at Luleå University of Technology. This idea study investigated the conditions of using waste heat from Boliden AB:s copper smeltery (Rönnskär) and storing this waste heat in two rock caverns and use them as seasonal thermal storage tanks, with the purpose of using the heat in the nearby district heating network, thus replacing some of the oil burned at Rönnskär. LÄS MER

  3. 3. Investigation of Inverse Magnetostriction inCobalt Films and Nanowires

    Master-uppsats, Uppsala universitet/Molekyl- och kondenserade materiens fysik

    Författare :Ahmad Montaser Lababidi; [2020]
    Nyckelord :;

    Sammanfattning : In this thesis, a study of the inverse magnetostriction (the Villari effect) of Co nanowires and films is presented. The main objective was to investigate the stability of the Co nanowires’ magnetic properties, i.e. LÄS MER

  4. 4. Energy audit in Ockelbo healthcare center

    Magister-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

    Författare :Pedro De Wit; [2020]
    Nyckelord :energy audit; heat balance; energy use; greenhouse gases emissions; improvement measures; efficiency;

    Sammanfattning : As the world is becoming aware of the impact of global warming reducing greenhouse gases emissions presents itself as a fundamental issue in order to avoid the environmental collapse and its negative consequences. One of the key points of this challenge it’s to make a responsable use of the energy. LÄS MER

  5. 5. Burning material behaviour in hypoxic environments: An experimental study examining fire dynamics of composite materials in vitiated conditions

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Robert Bray; [2020]
    Nyckelord :ORS; Fire engineering; hypoxic; polymers; Technology and Engineering;

    Sammanfattning : The progression of fire safety research has contributed to improving the guiding principles of standardised building design. Research making use of pure materials, once common in homes and workplaces, are less relevant as such materials are no longer as prevalent. LÄS MER