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Showing result 1 - 5 of 54 essays matching the above criteria.

  1. 1. Urban Planning for Better Air Quality : A case study of the Low-Traffic Neighbourhoods in London

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Greta Gustafsson; [2022]
    Keywords : Low-Traffic Neighbourhoods; London; Green Infrastructure; Urban Planning; Air Pollution;

    Abstract : Air pollution affects the environment negatively, boosts climate change, and is the cause of millions of deaths per year, first and foremost affecting the people living in urban areas. Since the early 20th century, many cities have been planned around cars, which are the main contributors to the bad air quality. READ MORE

  3. 2. Top European electricity producers´eco-efficiency : And the role of policy instruments

    University essay from Umeå universitet/Nationalekonomi

    Author : Matilda Hahne; [2022]
    Keywords : ;

    Abstract : There is an implicit trade-off between environmental quality and the production of goods which can be analysed using an eco-efficiency approach. Within an eco-efficiency approach, Decision Making Units (e.g. READ MORE

  4. 3. Implementing spatial variance in the rate of photolytic breakdown of NO2 in urban street canyons

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Fabian Friberg; [2022]
    Keywords : cfd; computational fluid dynamics; NOx; street canyon; NO2; NO; O3; photolysis; OpenFOAM; Physics and Astronomy;

    Abstract : In this study a module for calculating the solar exposure of individual fluid cells was developed to more accurately represent the effect of photolysis on the pollutant dispersion in an urban street canyon. The module was tested and validated on 12 different cases, each with a different geographical location, time of year and/or time of day. READ MORE

  5. 4. Negative CO2 Emissions from Chemical Looping Combustion: Gas Cleaning for CO2 Storage

    University essay from KTH/Kemiteknik

    Author : Laura Raud Pettersson; [2022]
    Keywords : Chemical Looping Combustion; Flue Gas Treatment; Negative emissions; Biomass; CCS; Linde Hampson; Cryogenic Separation; Kemcyklisk Förbränning; Rökgasrening; Negativa Utsläpp; CCS; Biomassa; Linde Hampson; Kryogen Destillation;

    Abstract : Kemcyklisk förbränning (CLC) involverar en icke komplex separation av den bildade koldioxiden (CO2) efter förbränningen eftersom syret (O2) överförs till bränslet via en syrebärare som cirkulerar mellan luft- och bränslereaktorn. Eftersom O2 separeras effektivt från kvävgasen (N2) i luftreaktorn, erhålls en produkt gas som till majoriteten består av CO2 och vatten (H2O). READ MORE

  6. 5. Investigation into Urea Deposit Risk by varying parameters in the control system related to urea evaporation

    University essay from KTH/Kemiteknik

    Author : Anna Sandström; [2022]
    Keywords : Urea Deposits; Urea Decomposition; Selective Catalytic Reduction; Urea Dosing; Ureautfällning; Ureanedbrytning; Selektiv katalytisk reduktion; Ureadosering;

    Abstract : I och med nuvarande och kommande lagkrav för utsläpp från tunga lastbilar finns en efterfrågan på utvecklade strategier för utsläppsminskning. För att kontrollera utsläppen av kväveoxider (NOx) används katalytisk omvandling med AdBlue (vätskeblandning av urea och vatten). READ MORE