Essays about: "koldioxid"

Showing result 1 - 5 of 253 essays containing the word koldioxid.

  1. 1. Large Scale Photovoltaic Market Analysis In Italy

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

    Author : Federico Annese; [2021]
    Keywords : ;

    Abstract : The environmental targets set by Europe of reaching a net zero carbon emission by 2050 and the European Green Deal have increased the environmental targets previously set. The Italian government managed to reach the targets set by 2020 in advance and started to work on the 2030 targets in 2017. READ MORE

  3. 2. Carbon dioxide dynamics in agricultural streams : Investigation of two streams draining catchments dominated by agricultural land

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Albin Bostner; [2020]
    Keywords : Carbon dioxide; dynamics; streams; agriculture; oversaturation; metabolic control; hyrdological control; Koldioxid; koldynamik; bäckar; jordbruk; övermättat; metabolisk kontroll; hydrologisk kontroll;

    Abstract : In recent years, streams draining agricultural land has been suggested to exhibit high carbon dioxide (CO2) concentrations when compared to streams draining other land-types. The transport of carbon from land to ocean is mainly occurring through the chain of inland waters, and with agricultural land today representing 40% of all continental area many of these inland waters are influenced by agricultural land. READ MORE

  4. 3. Thermomechanical stress analysis of the main insulation system of traction electrical machines

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik; Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Dahman Ismail; Alexis Andrei; [2020]
    Keywords : finite element analysis; thermo-mechanical stress; heavy-duty vehicle; electrical machine; insulation system; coupled-temperature displacement analysis; finita element analys; termomekaniska spänningar; lastbilar; elektriska motorer; isolering; termisk kopplingsförbindelse;

    Abstract : More efficiency heavy-duty vehicles are developed with higher range, updated electronic and mechanical parts. The fuel efficiency and pollution of carbon dioxide need to be lower to achieve new EU regulations. The global population increases with an increased number of heavy-duty vehicles. This, in turn, increases the emission. READ MORE

  5. 4. Stabilizing biogas processes at high ammonia : effects of acetate pulse-feeding on the microbial population

    University essay from SLU/Department of Molecular Sciences

    Author : Oscar Dolk; [2020]
    Keywords : biogas; anaerobic digestion; ammonia inhibition; acetate enrichment;

    Abstract : This study investigated the problem of ammonia inhibition in biogas reactors, commonly occurring when protein rich substrates are used in anaerobic digestion processes. Ammonia inhibition is one of the foremost causes of failure in anaerobic digestion, leading to process instability, with symptoms commonly expressed as; reduction in biogas produced, decreased methane content in the gas and accumulation of volatile fatty acids. READ MORE

  6. 5. Modelling and optimising a power-to-gas system : a case study in Uppsala

    University essay from SLU/Dept. of Energy and Technology

    Author : Carolina Hertzberg; [2020]
    Keywords : power-to-gas; dynamisk modell; fallstudie; biogas; optimering; lönsamhet;

    Abstract : För att det svenska elnätet ska fungera krävs det att balansen på elnätet upprätthålls hela tiden, skillnader mellan produktion och efterfrågan leder till obalans på elnätet. I dagsläget, i Sverige, upprätthålls balansen genom att minska eller öka elproduktionen från vattenkraften. READ MORE