Search for dissertations about: "Energiforskning"

Showing result 11 - 15 of 44 swedish dissertations containing the word Energiforskning.

  1. 11. Energy Efficient Window Systems. Effects on Energy Use and Daylight in Buildings

    University dissertation from Lund University, Lund Institute of Technology, Division of Energy and Building Design, P.O. Box 118, SE-221 00 LUND, Sweden

    Author : Helena Bülow-Hübe; Lunds universitet.; Lund University.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; simulation; thermal transmittance; solar energy transmittance; shading device; solar protection; cooling; heating; energy demand; building; low-emittance coating; window; glazing; comfort; user aspects; operative temperature; Architecture; Building construction; Byggnadsteknik; daylight; perception; interior design; Arkitektur; inredningsarkitektur; Energy research; Energiforskning;

    Abstract : Popular Abstract in Swedish Denna avhandling handlar om energieffektiva fönstersystem i svenska byggnader. Simuleringar av energianvändningen har gjorts för både småhus och kontor för att bedöma effekterna av olika fönsterval på energibehov och inneklimat. READ MORE

  2. 12. Biomass in a Sustainable Energy System

    University dissertation from Department of Environmental and Energy Systems Studies, Lund university

    Author : Pål Börjesson; Lunds universitet.; Lund University.; [1998]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; kontroll av utsläpp; Miljöteknik; pollution control; Environmental technology; economic valuation; environmental impact; carbon dioxide; Biomass; energy efficiency; Energiforskning; Energy research;

    Abstract : Popular Abstract in Swedish Användningen av fossila bränslen såsom kol, olja och naturgas svarar för mer än 70% av dagens globala utsläpp av koldioxid vilket är det största antropogena bidraget till växthuseffekten. Energieffektivisering och en ökad användning av förnybara energislag, t ex bioenergi, är två nyckelstrategier för att minska utsläppen av växthusgaser. READ MORE

  3. 13. Solar Shading for Low Energy Use and Daylight Quality in Offices: Simulations, Measurements and Design Tools

    University dissertation from LTH, Lund University

    Author : Marie-Claude Dubois; Lunds universitet.; Lund University.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Byggnadsteknik; Building construction; screens; venetian blinds; awnings; design tools; measurements; computer simulations; solar-protective glass; heating; cooling; visual comfort; daylighting; energy use; Shading devices; solar protection; Architecture; interior design; Arkitektur; inredningsarkitektur; Energy research; Energiforskning;

    Abstract : This thesis investigates the impact of solar shading devices on energy use and daylight quality in office rooms. The impact on energy use is analysed through computer simulations with the dynamic energy simulation program Derob-LTH while the impact on daylight quality is investigated through measurements in full-scale experimental office rooms and simulations with the program Radiance. READ MORE

  4. 14. Modeling of Pulverised Wood Flames

    University dissertation from Department of Heat and Power Engineering, Lund university

    Author : Ashraf Elfasakhany; Lunds universitet.; Lund University.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; applied thermodynamics; Thermal engineering; Energiforskning; Energy research; plasma; combustion; pulverised wood; two-phase flow; devolatilization; emissions; Gases; fluid dynamics; plasmas; fluiddynamik; Gaser; Termisk teknik; termodynamik;

    Abstract : Popular Abstract in Swedish The aim of the current work was at development and validation of modeling tools for simulation of pulverised wood flames in furnaces and study how different factors influence on such flames. The numerical model involves different sub-models for the physo-chemical processes, such as, two-phase flow motion, drying, devolatilization and shrinkage of particles, the formation and oxidation of volatile, tar and char, turbulence-chemistry interaction, turbulence-radiation interaction, etc. READ MORE

  5. 15. CFD Modeling of Turbulent Flows in Industrial Applications with Emphasis on Premixed Combustion in Gas Turbines

    University dissertation from Department of Heat and Power Engineering, Lund university

    Author : Ulf Engdar; Lunds universitet.; Lund University.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; framdrivningssystem; Motorer; turbulence and premixed combustion modeling ; CFD modeling ; level-set flamelet library approach ; emissions ; gas turbine ; compressor washing ; spray modeling ; Technological sciences; Teknik; Energy research; Energiforskning; Thermal engineering; applied thermodynamics; Termisk teknik; Motors and propulsion systems; termodynamik;

    Abstract : Increasing restrictions on hazardous emissions combined with demands for good profitability from the operators in the energy market have contributed strongly to the development of innovations in which the emphasis is on low emissions and high efficiency. For gas turbine-based power plants, emission of NOx in particular is governed by stringent legislation. READ MORE