Sökning: "Clean technology"

Visar resultat 11 - 15 av 314 avhandlingar innehållade orden Clean technology.

  1. 11. The mechanisms of metal expansion penetration during solidification of grey cast iron

    Författare :Izudin Dugic; Preben Norgaard Hansén; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Grey cast iron; solidification; solidification modelling; graphite expansion; molar volume; casting simulation; thermal analysis; thermoanalysis cup; casting temperature; inoculation; inoculant; metal expansion penetration; eutectic cell size; primary austenite; austenite grain; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The production of high quality castings requires the casting surface to be clean and free from defects. One type of defect often found is caused by metal penetration into the sand mould. LÄS MER

  3. 12. Methanation of biosyngas in a fluidized bed reactor

    Författare :Martin Seemann; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENERGY TECHNOLOGY; REGENERATIVE ENERGIES; GASIFICATION OF WOOD; FLUIDIZED BED PROCESSES; CHEMICAL ENGINEERING; FUEL TECHNOLOGY; ALTERNATIVE ENERGIES; METHANATION OF HYDROGEN-CARBONMONOXIDE MIXTURES; SYNTHETIC FUELS; NATURAL GAS; BIOGASES;

    Sammanfattning : Rising prices for fossil fuels and concerns over the climate change increase the interest in renewable energies. Synthetic natural gas (SNG) can be an option, filling the request for alternatives in the transportation sector, where the dependence on the oil is very strong. LÄS MER

  4. 13. Cleaning of metal artefacts using pulsed lasers

    Författare :Yang Sook Koh; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling;

    Sammanfattning : Preservation of cultural property in the form of historical artefacts for the future is an important interest in our society. The information which can be obtained from these materials is a valuable key to understand the past. LÄS MER

  5. 14. Activity-based Flexible Office work environments : Design and implementation processes and outcomes

    Författare :Linda Rolfö; Jörgen Eklund; Christina Bodin Danielsson; Annika Vänje; Ole Broberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Activity-based working; ABW; New ways of working NWW ; hot-desking; clean desk; office policies; workspace; office layout; office design; office planning process; organizational change; conceptual framework for office design; office planning; Aktivitetsbaserade kontor; ABW; Nya sätt att arbeta NWW ; flexibelt arbete; förhållningsregler; kontorsutformning; organisationsförändring; konceptuellt ramverk för kontorsplanering; planeringsprocessen; Technology and Health; Teknik och hälsa;

    Sammanfattning : Background: In recent years, there has been a reported increase in organizations relocating to Activity-based Flexible Offices (A-FOs) worldwide. The idea of A-FOs is to offer work conditions suitable for the workforce’s tasks and individual preferences. LÄS MER

  7. 15. Climate change mitigation through CDM : bioenergy technology and energy efficiency in the steel industry

    Författare :Chuan Wang; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energiteknik; Energy Engineering;

    Sammanfattning : Climate change is one of the most significant challenges to sustainable development facing the international community. Increased attention has been given by industries and governments from both industrialized and developing countries to reduce greenhouse gas (GHG) emissions through the clean development mechanism (CDM), one of the Kyoto Protocol's (KP) flexible mechanisms. LÄS MER