Search for dissertations about: "känslighetsanalys"

Showing result 1 - 5 of 28 swedish dissertations containing the word känslighetsanalys.

  2. 1. Sensitivity Analysis and Material Parameter Estimation using Electromagnetic Modelling

    Author : Therese Sjödén; Sven Nordebo; Börje Nilsson; Margaret Cheney; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sensitivity analysis; material parameter; Fisher information; Cramér-Rao bound; electromagnetic modelling; grain angle; wood; electrical impedance tomography; inverse problems; känslighetsanalys; estimering; materialparameter; Fisher- information; Cramér-Rao-gränsen; elektromagnetisk modellering; fibervinkel; trä; elektrisk impedanstomografi; inversa problem; Waves; Signals and Systems; Vågor; signaler och system;

    Abstract : Estimating parameters is the problem of finding their values from measurements and modelling. Parameters describe properties of a system; material, for instance, are defined by mechanical, electrical, and chemical parameters. Fisher information is an information measure, giving information about how changes in the parameter effect the estimation. READ MORE

  4. 2. Exergy Evaluation of Engine Operations : Combustion Process to Exhaust Flow

    Author : Beichuan Hong; Andreas Cronhjort; Mihai Mihaescu; Sundar Rajan Krishnan; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermal efficiency; Exergy analysis; Marine engine; Lean-burn combustion; Pulsating flow measurement; Pitot tube; Sensitivity analysis; Energy and exergy losses; Termisk verkningsgrad; Exergianalys; Marinmotor; Magertbränningsförbränning; Pulserande flödesmätning; Pitotrör; Känslighetsanalys; Energiförluster och exergiförluster; Machine Design; Maskinkonstruktion; Energiteknik; Energy Technology;

    Abstract : Transitioning the transport sector to clean energy sources is crucial for mitigating greenhouse gas emissions and achieving carbon neutrality. A collaborative solution, combining both electric vehicles and combustion engines using renewable fuels, may prove more effective than competitive ones. READ MORE

  5. 3. Exploring spatial and temporal resolution in energy systems modelling : a model-based analysis focused on the developing electricity systems

    Author : Nandi Moksnes; Viktoria Martin; Mark I. Howells; William Usher; Holger Rogner; Hannah Daly; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy system optimisation modelling; Global sensitivity analysis; Robust decision methods; Geospatial electrification model; SDG7; SDG13.; Energisystem; optimering; energimodellering; Global känslighetsanalys; Robust decision methods; geospatial elektrifieringsmodell; Globala mål 7; Globala mål 13; Energiteknik; Energy Technology;

    Abstract : The energy system is undergoing a transition in many parts of the world with this transition being driven by several factors such as climate change, and economic and social development. Agenda 2030, with its 17 Sustainable Development Goals (SDGs), has set the direction on where development should be focussed. READ MORE

  6. 4. Electromagnetic Modelling for the Estimation of Wood Parameters

    Author : Therese Sjödén; Sven Nordebo; Börje Nilsson; Andreas Fhager; Växjö universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cramér Rao bound; electromagnetic modelling; estimation; grain angle; microwave; wood properties.; Cramér Rao-gräns; elektromagnetisk modellering; estimering; fibervinkel; mikrovågor; träegenskaper.; Engineering physics; Teknisk fysik; Physics; Fysik;

    Abstract : Spiral grain in trees causes trouble to the wood industry, since boards sawn from trees with large grain angle have severe problems with form stability. Measurements of the grain angle under bark enable the optimisation of the refining process. READ MORE

  7. 5. A Statistical Approach to Estimate Thermal Performance and Energy Renovation of Multifamily Buildings : Case study on a Swedish city district

    Author : Martin Eriksson; Bahram Moshfegh; Shahnaz Amiri; Jan Akander; Sasan Sadrizadeh; Högskolan i Gävle; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy signature; multifamily building; district heating; energy renovation; simulation; heat loss coefficient; balance temperature; base load; energisignatur; flerbostadshus; fjärrvärme; energirenovering; simulering; värmeförlustkoefficient; balanstemperatur; baslast; Hållbar stadsutveckling; Sustainable Urban Development;

    Abstract : Several climate and energy goals have been set in the European Union, one of them being to increase energy efficiency. In Sweden, a large potential for increased energy efficiency lies in the residential and service sectors, which account for about 40% of total energy use. READ MORE