Sökning: "VOC"

Visar resultat 1 - 5 av 73 avhandlingar innehållade ordet VOC.

  1. 1. Determination of VOC Emissions from Surface Coatings by Environmental Test Chamber Measurements

    Författare :Alireza Afshari; RISE; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chamber; surface coating; emission rate; measurement; VOC; concentration;

    Sammanfattning : The emitting properties of different building materials are obtained by measurements in environmental chambers of a few established designs. In order to interpret the results from the measurements and to predict the influence on the indoor environment, it is necessary to have a good understanding of the parameters governing the emission process. LÄS MER

  3. 2. Catalytic Incineration of CO and VOC Emissions over Supported Metal Oxide Catalysts

    Författare :Per-Olof Larsson; Tillämpad biokemi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Titania; Ceria; Manganese oxide; Copper oxide; VOC; CO; Ethanol; Ethyl acetate; Metal oxide catalysts; Catalytic combustion; Catalytic incineration; Alumina.; Chemical technology and engineering; Kemiteknik och kemisk teknologi; Fysicumarkivet A:1999:Larsson;

    Sammanfattning : Catalytic incineration is one of the methods to reduce the emissions of CO and VOCs. Low operation temperature and low catalyst cost are essential parameters for catalytic incinerators. Pt/Al2O3 catalysts are frequently used today, but the cheaper metal oxide catalysts can be very competitive if comparable overall activity is obtained. LÄS MER

  4. 3. Influence of building envelope on indoor air quality: Field measurements, analysis, and method development related to indoor odors

    Författare :Fredrik Domhagen; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; material emissions; VOC; odor; ventilation; indoor air quality;

    Sammanfattning : The ventilation system should provide occupants with fresh air while removing excess pollutants from the building. However, increasing ventilation may inadvertently draw more pollutants into the occupant area or prove ineffective in altering emission rates from building materials and furnishings. LÄS MER

  5. 4. Mönsteranalys av inomhusluft. Undersökning av luftkvaliteten i sjuka hus med flytspackelproblem

    Författare :Carl-Gustaf Bornehag; Avdelningen för Byggnadsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SBS; Mönsteranalys; Luftkvalitet; VOC; Enkäter; Kaseinhaltigt flytspackel; Sjuka hus; Inomhusluft; Spackel och kitt; Sick building syndrome; Public Health Science;

    Sammanfattning : Den hälsomässiga effekten som rapporteras i samband med sjuka-hus syndromet (SBS), vars orsak är okänd, kan betraktas som ett mönster av icke specifika symptom såsom irritationer i ögon, näsa och mun, upplevelser av torra sletnhinnor och hud, hudrodnad, mental trötthet och upplevelse av svag men ihållande lukt. Aven exponeringar i inomhusluften kan beskrivas som ett mönster av en mängd olika ämnen, exempelvis VOC, partiklar, sporer m. LÄS MER

  7. 5. Atmospheric Chemistry of Volatile Organic Compounds: Oxidation Products, Mechanisms and Secondary Organic Aerosol Formation

    Författare :Julia Hammes; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SOA; VOC; anthropogenic; biogenic; FIGAERO; CIMS; HOMs; ELVOCs; atmospheric oxidation; chemical mechanism; NOx; limonene; a-pinene; TMB; ozone; nitrate; OH; radical chemistry; RO2; G-FROST; GO:PAM;

    Sammanfattning : The results from this work are a piece in understanding the complex puzzle of atmospheric aerosol formation. Secondary organic aerosol (SOA) formed by the oxidation of volatile organic compounds (VOC) in the atmosphere is a key component of air pollution with a strong negative impact on human health and influence on climate, but its formation is poorly understood. LÄS MER