Sökning: "renewable energies"

Visar resultat 21 - 25 av 146 uppsatser innehållade orden renewable energies.

  1. 21. Photocatalytic generation of hydrogen from cellulose

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Stefano De Luca; [2022]
    Nyckelord :;

    Sammanfattning : Uncontrolled emission of greenhouse gases caused by consumption of fossil fuels has led to the urgent need to develop low-emitting energy technologies such as those exploiting renewable energies. In this context, hydrogen (H2) represents an opportunity to enhance the development of such technologies, in light of the possibility to use it as an energy storage for non-programmable renewables, and for its potential to decarbonize key emitting sectors such as transport sector. LÄS MER

  3. 22. Energy improvement options for a small-scale brewery: a literature study

    Magister-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

    Författare :Eneko Arana; [2022]
    Nyckelord :Brewing industry; energy audit; energy efficiency; environmental impact; sustainability and energy recovery.;

    Sammanfattning : In the age of technology and development in which we live nowadays, it is inevitable to realise that this so-called progress is translated into pollution, damage to the environment and abuse of energy and fossil fuels. The companies and factories that produce the goods we need, use a lot of energy and pollute in massive ways, posing dilemmas such as how to make these companies more energetically and environmentally efficient, with the aim of decreasing the emissions and energy use. LÄS MER

  4. 23. Renewable Energy Sources and Energy Poverty

    Magister-uppsats, Lunds universitet/Ekonomisk-historiska institutionen

    Författare :Marie Luise Fiona Munzert; [2022]
    Nyckelord :Energy Poverty; Renewables; Institutional Quality; GLS; GMM; Business and Economics;

    Sammanfattning : The availability of energy is an overarching measure connected to various aspects of poverty. Energy Poverty, as a concept, captures the deprivation of access to energy, clean and safe fuels and end-appliances. LÄS MER

  5. 24. The local potential of V2G : Estimation of the benefits of Vehicle to Grid in the energy community of Stenberg

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Cyprien Drommi; [2022]
    Nyckelord :Vehicle to Grid; V2G; V2X; Electric vehicle; Energy community; Stenberg; Ancillary services; Frequency regulation; FCR; Energy arbitrage; Battery degradation; DC charging.; Vehicle to Grid; V2G; V2X; Elbilar; Elfordon; Energisamfälligheten; Stenberg; Stödtjänster; Frekvensbalancering; FCR; Energiarbitrage; Batteridegradering; Likströmsladdning.;

    Sammanfattning : In the countries willing to follow an energy transition towards decarbonization, a strong emphasis is put on electrification. Carbon-free power production tends to rely more on intermittent renewable energies, bringing many uncertainties on the electricity output to the grid. LÄS MER

  7. 25. Energy supply system for a high-rise building in Germany : Optimization of a heating and cooling supply system made with plant simulations

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Ida Almén; Elin Johansson; [2022]
    Nyckelord :energy supply system; absorption chiller; compression chiller; Germany;

    Sammanfattning : The building sector has great potential for energy savings since it is responsible for nearly a third of the global energy use. As oil, coal and natural gas continues to hold a big share of the energy mix it is important to work towards introducing more renewable energy alternatives. LÄS MER