Essays about: "ekonomisk livslängd"

Showing result 1 - 5 of 32 essays containing the words ekonomisk livslängd.

  1. 1. Faktorer som påverkar livslängden hos svenska mjölkkor : effekter på metanutsläppen

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Mikaela Walltin; [2023]
    Keywords : fertilitet; nkalvningsålder; kvigor; metan; mjölkkor; rekryteringsprocent;

    Abstract : Livslängden hos svenska mjölkkor är idag relativt kort då faktorer som en hög rekryteringsprocent, låg fertilitet, sjukdomar och skador, låg mjölkavkastning, hög inkalvningsålder och en önskan om bättre genetiskt material i nästa generations kvigor spelar in. Alla dessa faktorer påverkar i sin tur metanutsläppen då en mjölkko som lever länge och bidrar till besättningen med sin mjölkavkastning har lägre metanutsläpp än en ko som lever kortare tid. READ MORE

  3. 2. Recycling end-of-life silicon PV panel with molten salt bath

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Liying Yu; [2023]
    Keywords : ;

    Abstract : Solar energy is recognized as a clean way to produce electricity. Solar PV's installed capacity is increasing in recent years. However, a PV panel has a 25-year lifespan on average. In actuality, 95% of the mass of PV components can be recycled. READ MORE

  4. 3. Enhancing Sustainability in Building Construction in Developing Countries : Enhancing Sustainability in Building Construction in Developing Countries

    University essay from KTH/Hållbara byggnader

    Author : Felicia Långström; Elin Wahlström; [2023]
    Keywords : ;

    Abstract : This master's thesis was conducted in collaboration with Engineers Without Borders Sweden and Tumaini Open School in Tabora, Tanzania. Tumaini Open School, located on the outskirts of Tabora, is a school under construction expected to host 450 students and to be completed by 2025. READ MORE

  5. 4. Predictive model for continuous optimization of DPF service interval based on economic trade-off

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Mahir Sheth; [2022]
    Keywords : ;

    Abstract : AbstractEfficiency, emissions and uptime are three crucial factors that development engineers in the automotive business strive to improve. The proposed study is a part of this continuous improvement towards perfection of the Scania engine and exhaust after-treatment system. READ MORE

  6. 5. The environmental and social impact from digitization in buildings : A case study of the transformation and current conditions on the University hospital of Northern Sweden

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : Matilda Melén; Alma Wenhov; [2022]
    Keywords : digitization; building automation; HVAC; energy efficiency; qualitative interview; quantitative interview; LCA; maintenance techniques; environmental analysis; condition-based maintenance; preventive maintenance; reactive maintenance; NUS; the university hospital of northern sweden; Schneider Electric; CO2; transportation; efficiency; indoor comfort; indoor climate; climate change; digitalisering; fastighetsautomation; HVAC; energieffektivisering; kvalitativ intervju; kvantitativ intervju; LCA; underhållsstrategier; miljöanalys; konditionsbaserat underhåll; förebyggande underhåll; reaktivt underhåll; NUS; Norrlands Universitetssjukhus; Schneider Electric; CO2; transporter; effektivitet; inomhuskomfort; inomhusklimat; klimatförändring;

    Abstract : To improve sustainability, social, environmental and economic aspects needs to be considered. The most optimal result appears when all three aspects are balanced equally, this is however often overseen by private investors, who focuses only on reaching economic sustainability at the expense of social and environmental sustainability. READ MORE