Sökning: "heat exchange"

Visar resultat 1 - 5 av 140 uppsatser innehållade orden heat exchange.

  1. 1. Full Cycle Cylinder State Estimation in DI Engines with VVA

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Linus Johansson; [2019]
    Nyckelord :VVT; Combustion engine; Thermodynamics; CRB;

    Sammanfattning : Tougher legal demands on pollutions require a better developed understanding of the processes that take place in the cylinder. The thesis contributes with a cylinder model that uses the same set of equations for intake, compression,expansion/combustion and exhaust. LÄS MER

  2. 2. Development of Spectroscopic Measurements for Raman and Thomson Scattering Diagnostics ——Applications in Combustion and Plasma

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Miaoxin Gong; [2019]
    Nyckelord :Raman scattering; Raman spectroscopy; Thomson scattering; stray light suppression; periodic shadowing; high dynamic range imaging; digital micro-mirror device; DMD; laminar flames; combustion; gas discharge; plasma; laser diagnostics; spectrometer; improved spectroscopy; spectroscopy; Physics and Astronomy;

    Sammanfattning : This thesis work concerns methods for improved spectroscopy including stray-light suppression, dynamic range improvement and signal enhancement. These methods were applied in Raman and Thomson- scattering spectroscopy in combustion and plasma. LÄS MER

  3. 3. Energioptimering av tryckluft : Genom värmeåtervinning och driftoptimeringar för industriella tillämpningar på Volvo Trucks i Umeå

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

    Författare :Johan Fjellstedt; [2019]
    Nyckelord :Tryckluft;

    Sammanfattning : Volvo Trucks in Umeå use large amounts of compressed air and the air compressors at Volvo use large amounts of energy every year. The majority of the energy supplied to the compressors goes to heat losses cooled to the Ume River and groundwater. LÄS MER

  4. 4. Indoor Air Pollution, Passive Ventilation Strategies and Thermal Comfort in Nepal

    Master-uppsats, Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Marianne Löwgren; [2019]
    Nyckelord :Energy poverty; Solid biomass fuels; Improved cooking stoves; Indoor air pollution; Carbon monoxide; Vernacular architecture; Passive ventilation; Air exchange rate; Indoor air quality; Thermal comfort; Operative temperature; Sustainable societal development; Social Sciences; Technology and Engineering;

    Sammanfattning : Indoor Air Pollution (IAP) resulting from indoor burning of solid biomass fuels in poorly ventilated kitchens is a severe health risk in parts of the world where energy poverty is prevalent. Passive ventilation, i.e. taking advantage of naturally induced airflow has been suggested as crucial in reducing IAP levels below safe limits. LÄS MER


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

    Författare :Amanda Wennberg; Cindy Östman; Kevin Bergman; [2019]
    Nyckelord :Energieffektivisering; aktiv uppvärmning; passiv uppvärmning; transmission; total värmeförlust; diffusion; solenergitillförsel; tilläggsisolering;

    Sammanfattning : Through calculations as well as a literature study the purpose of this work was to apply modern energy efficiency measures on an old existing building and on the same time take economical aspects and thermal inside climate into account. The work also carries out a case study on the existing building Lådberga 1:78. LÄS MER