Sökning: "SINK"

Visar resultat 1 - 5 av 180 avhandlingar innehållade ordet SINK.

  1. 1. The Sink-Effect in Indoor Materials Mathematical Modelling and Experimental Studies

    Detta är en avhandling från Stockholm : Byggvetenskap

    Författare :Peter Hansson; KTH.; [2003]
    Nyckelord :sink-effect; sorption; adsorption; diffusion; indoor air quality; volatile organic compounds; VOC; contaminants; building materials;

    Sammanfattning : In this thesis the sink-effect in indoor materials wasstudied using mathematical modelling and experimental studies.The sink-effect is a concept which is commonly used tocharacterise the ability of different indoor materials to sorbcontaminants present in the indoor air. The sorption process ismore or less reversible, i.e. LÄS MER

  2. 2. On optimization of natural convection flows

    Detta är en avhandling från Stockholm, Sweden : KTH Royal Institute of Technology

    Författare :Clio Saglietti; KTH.; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Natural convection cooling; topology optimization; flow optimization; heat sink; conjugate heat transfer; differentially heated cavity; optimal initial disturbances; adjoint optimization;

    Sammanfattning : Two different techniques are presented for enhancing the thermal  performance of natural convection cooled heat sinks. The physics is  described by solving the conjugate heat transfer problem with a  spectral element method. The temperature distribution is computed in  two sub-domains, whose solution is then conjugated. LÄS MER

  3. 3. Carbon sequestration processes in tropical seagrass beds

    Detta är en avhandling från Stockholm : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Författare :Liberatus Dominick Lyimo; Stockholms universitet.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Seagrass; Carbon sequestration; Carbon sink; Eutrophication; Productivity; Nitrous oxide; Methane; Greenhouse gases; Tropical; Eastern Africa; växtfysiologi; Plant Physiology;

    Sammanfattning : Seagrass meadows may play a substantial role in climate change mitigation as they are capable to sequester and store substantial amounts of anthropogenic carbon in plant biomass and, more importantly, in their underlying sediments. In this PhD thesis, the carbon-burial potential was assessed by quantifying the amount of organic carbon stored in different seagrass meadows, each dominated by one of the four major seagrass species in the Western Indian Ocean region. LÄS MER

  4. 4. Turbulent Forced Convection Air Cooling of Electronics with Heat Sinks Under Flow Bypass Conditions

    Detta är en avhandling från Stockholm : KTH

    Författare :Hans Jonsson; KTH.; [2001]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; forced convection; heat transfer; pressure drop; turbulent; air cooling; bypass; plate; strip; pin; fin; heat sink; electronics; experimental; numerical; CFD; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Air cooling is still the dominant method for dissipating theheat produced by electronic components. In a typical electronicdevice, the components are situated on a Printed Circuit Board(PCB). For most applications natural convection is sufficientto cool the components. LÄS MER

  5. 5. Sediment transport from source to sink in the Lake Baikal basin Impacts of hydroclimatic change and mining

    Detta är en avhandling från Stockholm : Department of Physical Geography, Stockholm University

    Författare :Jan Pietroń; Stockholms universitet.; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sediment transport; human impact; hydroclimatic change; surface mining; metal-enriched sediment; Lake Baikal; the Selenga River; the Selenga Delta; naturgeografi; Physical Geography;

    Sammanfattning : Different magnitude, intensity and timing of precipitation can impact runoff, hillslope erosion and transport of sediment along river channels.  Human activities, such as dam construction and surface mining can also considerably influence transport of sediment and sediment-bound contaminants. LÄS MER