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Found 5 essays matching the above criteria.

  1. 1. Steam Prediction at an Integrated Pulp and Paper Mill : Mondi Dynäs in Kramfors Municipality

    University essay from Luleå tekniska universitet/Energivetenskap

    Author : Jimmy Sehlberg; [2020]
    Keywords : Steam prediction; Prediction; Industrial prediction; ångprediktion;

    Abstract : The most important energy carrier at an integrated pulp and paper mill is steam, it is essential to power components and machinery. The components create variations in the steam grid network, variations that exceed the capacity of the steam accumulator. READ MORE

  3. 2. Numerical analysis of aerodynamic damping in a transonic compressor

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

    Author : Vincenzo Stasolla; [2019]
    Keywords : transonic compressor; flutter; vibration; CFD; transonic kompressor; fladder; vibration; CFD;

    Abstract : Aeromechanics is one of the main limitations for more efficient, lighter, cheaper and reliable turbomachines, such as steam or gas turbines, as well as compressors and fans. In fact, aircraft engines designed in the last few years feature more slender, thinner and more highly loaded blades, but this trend gives rise to increased sensitivity for vibrations induced by the fluid and result in increasing challenges regarding structural integrity of the engine. READ MORE

  4. 3. Game engine based auralization of airborne sound insulation

    University essay from Umeå universitet/Institutionen för fysik

    Author : Jimmy Forsman; [2018]
    Keywords : Auralization; Building acoustics; Airborne sound insulation; EN 12354-1; Room acoustics; Audio engines for virtual reality; Game engine;

    Abstract : Describing planned acoustic design by single number ratings yields a weak link to the subjective event, especially when the single number ratings are interpreted by others than experienced acousticians. When developing infrastructure, tools for decision making needs to address visual and aural perception. READ MORE

  5. 4. Validation of one-dimensional loss models for axial gas turbines

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Kim Hirsch; Ramin Moghadam; [2016]
    Keywords : gas turbine; loss model; turbine; Technology and Engineering;

    Abstract : Denna masteruppsats är ett sammarbete mellan Siemens Industrial Turbomachi- nery (SIT) och Lunds Tekniska Högskola (LTH). Uppsatsen berör validering av ett nytt in-house verktyg på SIT som heter ”Mean Line Tool” (MLT), framför allt sekundärförlustmodellerna som verktyget använder. READ MORE

  6. 5. Spectral Analysis of Flame Emission for Optimization of Combustion Devices on Marine Vessels

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Author : Panagiota Stamatoglou; [2014]
    Keywords : Premixed flames; Equivalence ratio; Chemiluminescence; Partial least squared regression; Flame monitoring; Physics and Astronomy;

    Abstract : Chemiluminescent emission from OH*, CH* and C2* radicals and its dependence on the equivalence ratio is being investigated in the current study. The aim of this project is to use the results for combustion control on marine vessels and safety checks. READ MORE