Sökning: "energy recovering"

Visar resultat 1 - 5 av 78 uppsatser innehållade orden energy recovering.

  1. 1. Data Centres as Prosumers: A Techno-Economic Analysis

    Master-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Jeremy Ericsson Sintong; [2023]
    Nyckelord :Data Centres; Prosumers; Techno-Economic Analysis; Waste Heat Recovery; District Heating; Heat Supply; Air-Cooled Data Centre;

    Sammanfattning : Rapid growth of digitalization has urged Data Centres (DC) to be more energy efficient by recovering waste heat from server racks that would otherwise be wasted. This techno-economic study is focused on upgrading low temperature waste heat from typical Air-Cooled DC for District Heating Network (DHN) market in Stockholm region. LÄS MER

  3. 2. CFD investigation of a unit cell inside a Plate Heat Exchanger

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Mattias Ly; [2023]
    Nyckelord :Plate Heat Exchanger; CFD; Computational Fluid Dynamics; LES; Large Eddy Simulation; Periodic; Unit Cell; Technology and Engineering;

    Sammanfattning : A numerical investigation of the unit cell approach has been done to reduce the computational cost for CFD (Computational Fluid Dynamics) of plate heat exchangers (PHE) at Alfa Laval. The reduced cost would enable LES (Large Eddy Simulation) to be done which would give a more detailed and accurate insight into the flow and heat transfer processes of the PHE. LÄS MER

  4. 3. Litteraturstudie - Energieffektivisering av livsmedelsbutiker genom nyttjande av överskottsvärme

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

    Författare :Christ Asadour; Teodor Nymark; [2023]
    Nyckelord :;

    Sammanfattning : Generellt sett har livsmedelsbutiker ett stort behov av enrgi i form av el, värme, komfortkyla och livsmedelskyla. Livsmedelsbutikers höga elanvändning utgör 3% av Sveriges totala elanvändning. En betydande del av elanvändningen går till kylsystem och genererar på så vis överskottsvärme från kondensorn som ofta slösas bort. LÄS MER

  5. 4. Heat recovery from vacuum brazing furnaces

    Master-uppsats, Lunds universitet/Avdelningen för Installations- och klimatiseringslära

    Författare :Oliver Robertsson; Rasmus Wikman; [2023]
    Nyckelord :Waste heat; Vacuum furnace; Heat recovery; HVAC; Technology and Engineering;

    Sammanfattning : By partly replacing the use of primary energy sources with waste heat recovery, climate and environmental goals for the future will be closer at hand. This thesis investigates the waste heat potential of Alfa Laval's vacuum brazing furnaces in Ronneby and alternative ways of integrating the furnace's waste heat into the building's HVAC system. LÄS MER

  7. 5. Techno-economic fesibility of a hybrid CSP (sCO2) - PV plant for hydrogen production

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

    Författare :Patricia Perez De La Calle; [2023]
    Nyckelord :Soec oxide electrolyzer cell SOEC ; Concentrated solar plant CSP ; Super critical cO2 sCO2 ; photovoltaic field PV ; Thermal storage TES ; electrolyzer; MoSES; high temperature electrolysis THE .;

    Sammanfattning : The global need to eliminate CO2 emissions and its consequent reduction in the use of fossil fuels drives the ongoing energy transition that highly involves the research achievements of the scientific community to reach the goals of this purpose. Renewable sources like photovoltaic and wind energy, are central to this endeavor, however, the intermittency of natural resources makes it non-dispatchable and energy storage is fundamental. LÄS MER