Sökning: "Particulate number"

Visar resultat 1 - 5 av 27 uppsatser innehållade orden Particulate number.

  1. 1. Refining the particulate matter airway deposition arising from indoor cooking-related biomass combustion for children in the Haramaya district in Ethiopia

    Master-uppsats, Lunds universitet/Ergonomi och aerosolteknologi

    Författare :Kasper Malmborn; [2023]
    Nyckelord :Air pollution exposure; charcoal; wood; animal dung; low-income setting epidemiology; Technology and Engineering;

    Sammanfattning : Background: Air pollution, a global issue affecting millions of individuals, is linked to adverse health effects on the respiratory system, but also to e.g., cancer and cardiovascular ailments. In low-income countries, cooking is often conducted by biomass-combustion, causing women and children to be exposed to high levels of indoor air pollution. LÄS MER

  3. 2. Comparative life cycle assessment of two desiccant wheel dehumidifiers with industrial application

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

    Författare :Astrid Ortis; [2022]
    Nyckelord :Desiccant wheel dehumidifier; adsorption dehumidification; life cycle assessment LCA ; EU Taxonomy; Rotorsorptionsavfuktare; luftavfuktning; livscykelanalys LCA ; EU taxonomi;

    Sammanfattning : Humans spend around 80 percent of their lifetime indoors. The humidity level plays an essential part in indoor climate, both in non-industrial applications, such as thermal comfort, and industrial ones. Dehumidification is a technology in the field of thermal comfort and indoor climate to control humidity levels. LÄS MER

  4. 3. Undersökning av turbiditet och föroreningars sammansättning i urbana vatten

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Matilda Ahlström; [2021]
    Nyckelord :Turbidity; phosphorus; metals; PAH:s; stormwater; dissolved pollutants; particulate bounded pollutants; water quality; Turbiditet; fosfor; metaller; PAH:er; dagvatten; löst fas; partikulär fas; vattenkvalité;

    Sammanfattning : Stormwater is water that originates from snow or rainfall and that cannot naturally infiltrate the soil. When stormwater flows from hard surfaces it can transport different pollutants to watercourses. By measuring turbidity continuously and using the relationship between turbidity and pollutants the pollutant levels can be estimated. LÄS MER

  5. 4. The Potential of Electrification in reducing Emissions from Passenger Cars in Stockholm County by 2030 : A Modeling Study of the Potential of Plug-In Hybrids and All-Electric Cars in reducing Greenhouse Gas Emissions and Air Pollution

    Master-uppsats, KTH/Transport och systemanalys

    Författare :Arvid Hedbäck; [2021]
    Nyckelord :electric cars; electrification; Stockholm; 2030; modeling; Scaper; HBEFA; CO2; air pollution; nitrogen oxides; NOx; hydrocarbons; HC; particulate matter; PM10; PM2.5;

    Sammanfattning : This study examines the potential of electrification in reducing greenhouse gas emissions and air pollution from passenger cars in a short- to mid-term time perspective. Using Stockholm County as a case study, this has been done in a three-step process by modeling the relative change in emissions between 2019 and 2030. LÄS MER

  7. 5. Understanding particulate matter - Material analyses of real-life diesel particulate filters and correlation to vehicles’ operational data

    Master-uppsats, KTH/Kemiteknik

    Författare :Linus Nordin; [2021]
    Nyckelord :Diesel particulate filter; Ash measurement method development; Correlation study; Operational parameters; Principal component analysis; Dieselpartikelfilter; Askanalys metodutveckling; Korrelationsstudie; Driftsparametrar; Principal component analysis;

    Sammanfattning : Syftet med denna studie var att undersöka effekterna av driftsparametrar på ett antal mätbara askrelaterade parametrar i dieselpartikelfilter (DPF) i tunga fordon. Tidigare studier visar att askans packningsdensitet, askflöde och hur askan fördelas inuti ett DPF är beroende av parametrar som temperatur, avgasflöde och oljeförbrukning ett fordon har. LÄS MER