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Showing result 1 - 5 of 14 essays matching the above criteria.

  1. 1. Investigation of fuel and water injection in gas turbine combustion : Evaluate the methodologies available in Star CCM+ for modeling of water injection in simplified combustor using liquid and gas fuels

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Sanger Shinwari; [2023]
    Keywords : Diesel and Methane fuel combustion; FGM combustion model; Lagrangian multiphase modelling; Inert Stream; Water injection; STAR CCM ;

    Abstract : The negative impact of gas turbine emissions on the environment and human health is a growing concern. Recent studies suggest injecting water into the combustion process effectively reduces emissions and increases power output. However, this approach presents new challenges that need to be thoroughly investigated. READ MORE

  3. 2. An Environmental (LCA) and economic assessment (LCC) of on-farm and centralized alternatives for biogas production for two Swedish farms in Götene

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Abdelali Ouakrim; [2023]
    Keywords : Life cycle assessment; LCA; life cycle costing; LCC; biogas; animal manure; biogas production; co-digestion;

    Abstract : Biogas production through anaerobic digestion is an important part towards the achievement of a bio-based and circular economy in Sweden. In fact, Swedish government proposed a strategy suggesting that biogas production should be increased from 2 TWh today to 7 TWh by 2030. READ MORE

  4. 3. Biogas Potential in the North of Sweden : Inventory and Techno-Economic Assessment of Substrates for an Increased Biogas Production in Norrbotten

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Alma Fahlén Hammar; [2023]
    Keywords : Biogas; anaerobic digestion; AD; Norrland; bioenergy; fossil-free; chemical engineering; Chemistry; Technology and Engineering;

    Abstract : Great investments are planned in the north of Sweden the coming years, not the least in the county of Norrbotten where the projects collectively are referred to as the green transition due to the focus on fossil-free techniques. But to be able to secure a sustainable energy supply and reach the goal set by the member states of the European Union of a carbon dioxide neutral union in 2050 the production of alternative energy sources needs to intensify. READ MORE

  5. 4. Liquid Natural Gas : A study of the environmental impact of LNG in comparison to diesel

    University essay from Linnéuniversitetet/Sjöfartshögskolan (SJÖ)

    Author : Jonas Edfors; Robin Bremberg; [2021]
    Keywords : Methane; LNG; Engine; Marine; Mole; Methane Slip; Ship; CO2; CH4; Emission; IMO; Exhaust gas; Environment; Propulsion; Heavy Fuel Oil; Ultra Low Fuel Oil; Diesel; Marine Diesel Oil; ECA; SECA; NECA; IMO; g kWh; EEDI; LSFO; Metan; LNG; Motor; Mol; Skepp; Miljö; Miljövänligt; Tjockolja; Diesel; Marine Diesel; Avgas; CO2; CH4; ECA; SECA; NECA; IMO; g kWh; EEDI; LSFO;

    Abstract : Liquefied Natural Gases (LNG) has been an alternative fuel in the marine industry for several years, but lately, the amount of ships that have been powered by methane has increased a lot. Some of the reasons for this is because LNG does not contain any sulfur and releases less nitrogen oxides than traditional maritime fuels. READ MORE

  6. 5. Climate impact of hydrogen as fuel for the heavy road transportation : A time-dependent life cycle methodology based assessment

    University essay from SLU/Dept. of Energy and Technology

    Author : Madeleine Stolpe; [2021]
    Keywords : hydrogen production; steam methane reforming; carbon capture and storage; waterelectrolysis; heavy trucks;

    Abstract : Currently, the transportation sector stands for one third of all greenhouse gas emissions in Sweden. Hydrogen (H2) could contribute to a decarbonized transportation sector since water is the only direct emission from a fuel cell electric vehicle. READ MORE