Sökning: "Carbon cycling model"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden Carbon cycling model.

  1. 1. Techno-Economic Optimization and Control of Hybrid Energy Systems

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Louise Calmered; Tanja Nyberg; [2023]
    Nyckelord :Hybrid Energy Systems; Optimization; Control Techniques; Peak Shaving; Energy Arbitrage; Ancillary Services;

    Sammanfattning : The increasing demand for renewable energy sources to meet climate targets and reduce carbon emissions poses challenges to the power grid due to their intermittent nature. One potential solution to maintain grid stability is by implementing Hybrid Energy Systems (HESs) that incorporate a Battery Energy Storage System (BESS). LÄS MER

  3. 2. Tundra carbon cycling in relation to sea-ice decline in a warming Arctic

    Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Juliane Glinski; [2022]
    Nyckelord :sea-ice decline; warming Arctic; earlier growing season; arctic tundra; heterotrophic and autotrophic respiration; climate warming; Earth and Environmental Sciences;

    Sammanfattning : We set out to investigate whether arctic tundra acted as a sink or source of carbon dioxide (CO2) between 1980-2014 and to relate changes in the net carbon balance to Arctic sea-ice decline. We want to understand how climate change and arctic warming influence arctic carbon cycling. LÄS MER

  4. 3. Management and site conditions drive carbon dynamics of Forest understory vegetation

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Emily Delin; [2021]
    Nyckelord :carbon sequestration; forest floor vegetation; ground vegetation; mixed model; Sweden;

    Sammanfattning : The forest understory vegetation is largely disregarded in studies of carbon sequestration despite notable contribution to storage and cycling in the ecosystem. In addition to already lacking knowledge on this pool independently, further uncertainty and change is introduced by forest management and the changing climate. LÄS MER

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

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Dahman Ismail; Alexis Andrei; [2020]
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  7. 5. Carbon dioxide and Energy flows in Jämtland’s waste sector

    Master-uppsats, Mittuniversitetet/Avdelningen för ekoteknik och hållbart byggande

    Författare :Anna Eriksson; [2016]
    Nyckelord :Carbon cycling model; Carbon flow analysis; Carbon dioxide equivalent; Energy flow analysis; Embodied energy; Greenhouse gases; Low heating value; Material flow analysis; Samsö model; Sustainable development; Waste.;

    Sammanfattning : The aim of this study is to assess the current situation of energy and carbon flows through the waste sector in Jämtland. An energy flow analysis is performed by balancing the inflows and outflows of the lower heating value and embodied energy. LÄS MER