Sökning: "Clean air"

Visar resultat 41 - 45 av 127 uppsatser innehållade orden Clean air.

  1. 41. Engine air filter requirements : How different running conditions affect service life

    M1-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Petter Malmborg; [2019]
    Nyckelord :air filter; airfilter; product development;

    Sammanfattning : The internal combustion engine requires clean air in order to operate without problems the entire service life. The air filter acts as a barrier between the ambient air ridden with particulate matter, and the sensitive interior of the engine. LÄS MER

  3. 42. Utformning av spaltbevattning : kan det vara vägen mot renare grisar?

    M1-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Cecilia Johansson; [2019]
    Nyckelord :spaltbevattning; droppbevattning; duschbevattning; djurvälfärd; boxhygien; slaktsvinstall;

    Sammanfattning : Hygien i svenska slaktsvinsstallar och arbetsbelastningen under sommartid kan vara ett problem i Sverige på grund av att grisarna använder den fasta liggytan som gödselyta under sommartid. Att grisen försöker kyla sig när den utsätts för värmestress, hög beläggning, icke optimal utfodringsstrategi samt ökad produktivitet är faktorer som alla bidrar till dålig boxhygien. LÄS MER

  4. 43. Life cycle assessment of a CAV, a VAV, and an ACB system in a modern Swedish office building

    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Nadeen Hassan; [2019]
    Nyckelord :Life cycle assessment; Environmental impacts; HVAC systems; Environmental indicator; Energy; Environmental performance; Impact assessment; Life cycle impact; Buildings; SimaPRO; Ecoinvent; Manufacturing phase; Operation phase; Active chilled beams; Variable-air-volume system; Constant-air volume system.; Technology and Engineering; Earth and Environmental Sciences;

    Sammanfattning : Energy use in buildings contributes significantly to the global energy demand and environmental impacts. Among all building services, heating, ventilation, and air conditioning (HVAC) systems consume the most energy. HVAC systems are as well one of the largest consumers of natural resources and materials in the building sector. LÄS MER

  5. 44. Adoption of high-technology products in emerging markets: The ACE-1 advanced biomass cookstove in rural Cambodia

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Anne Baltruschat; [2019]
    Nyckelord :Sustainable Development; Energy access; Clean cooking; Advanced biomass stoves; Adoption;

    Sammanfattning : This study examines the adoption of clean cooking technologies in developing countries with a focus on the ACE-1 advanced biomass stove (ABS). Marginalized communities in rural environments are often exposed to high levels of Household Air Pollution (HAP) due to the common use of traditional cookstoves. LÄS MER

  7. 45. Social Enterprises: How to succeed in the renewable energy sector in Sub-Saharan Africa

    Kandidat-uppsats, Högskolan i Jönköping/IHH, Företagsekonomi

    Författare :Elise Ekman; Emelie Pilestål; Louise Hemvik; [2019]
    Nyckelord :Social Enterprise; Sub-Saharan Africa; Success Factors; Barriers; Renewable Energy;

    Sammanfattning : In 2015, the United Nations developed 17 goals to work towards sustainable development by 2030. Among these goals, goal number seven focuses on providing clean and affordable energy for all, to solve problems such as poverty and to reduce greenhouse gas emissions around the world. LÄS MER