Sökning: "A-SINK"

Visar resultat 1 - 5 av 39 uppsatser innehållade ordet A-SINK.

  1. 1. Greenhouse gas emissions and carbon burial in a small pond

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Maria Carlson; [2023]
    Nyckelord :Pond; greenhouse gas; carbon dioxide; methane; nitrous oxide; flux; ebullition; carbon burial; Damm; växthusgas; koldioxid; metan; lustgas; flöde; ebullition; kolbindning;

    Sammanfattning : There are a lot of uncertainties when it comes to global greenhouse gas (GHG) emissions which affects society’s ability to effectively respond to climate change. Small ponds have been found to potentially play a large role in global warming. LÄS MER

  3. 2. Adjoint optimization of a liquid-cooled heat sink

    Master-uppsats, KTH/Teknisk mekanik

    Författare :Roven Pinto; [2023]
    Nyckelord :Adjoint method; topology optimization; porosity; OpenFOAM;

    Sammanfattning : Improving the design of flow channels in a liquid-cooled heat sink is critical for boosting the capabilities of electronic components as well as reducing energy usage by the pump. This work explores the use of topology optimization to minimize the pressure difference across a heat sink and consequently, the energy used to supply the liquid. LÄS MER

  4. 3. Short-Time Temporal Changes of CH4 Fluxes in Different Tropical Tree Species : In-situ research regarding methane emissions from inundation-adapted Amazonian tree species in Jardim Bot�nico do Rio de Janeiro.

    Kandidat-uppsats, Linköpings universitet/Tema Miljöförändring

    Författare :Emelie Athley; [2023]
    Nyckelord :Methane CH4 ; environment; greenhouse gas GHG ; emission; Amazonian tree species; tropical trees; wetland; flux; CH4 emission from plants; tree mediated CH4 emission; Global CH4 budget; environmental stressors; meteorological parameters; natural CH4 emissions;

    Sammanfattning : Methane (CH4) is guaranteed to affect climate change and is essential in rising temperatures. Scientists have known for over two decades that wetlands emit CH4 to such an extent that it affects our climate. Tropical trees that grow in wetlands tend to emit or act as a conduit of CH4, to the extent that it has a negative environmental impact. LÄS MER

  5. 4. Integration of an industrial heat pump for a TES-based power-to-heat system : A techno-economic assessment

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

    Författare :Cristian Contreras Aramayo; [2023]
    Nyckelord :Heat; electricity; industrial heat pump; power-to-heat;

    Sammanfattning : This work aims to investigate the potential electricity savings, as well as the potential decrease in LCoH and OPEX, that an integration of an industrial heat pump can have on a molten salt-based power-to-heat system with integrated thermal energy storage. The original system uses an electric heater to heat up molten salt, which acts as the heat transfer fluid of the system, from which heated steam can be produced and delivered at the output. LÄS MER

  7. 5. Optimizing Porosity Predictions in Casting Simulation

    Master-uppsats, KTH/Materialvetenskap

    Författare :Sanna Kylström; [2022]
    Nyckelord :;

    Sammanfattning : Porosity is a defect severely affecting component quality and performance. In order to improve predictions, simulations can be utilized to calculate possible initiation sites. LÄS MER