Sökning: "process produktion"

Visar resultat 11 - 15 av 407 avhandlingar innehållade orden process produktion.

  1. 11. Co-firing animal waste, sludge, residue wood, peat and forest fuels in a 50MWth CFB boiler : ash transformation, availability and process improvements

    Författare :Henrik Hagman; Dan Boström; Rainer Backman; Anders Nordin; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Co-combustion; animal waste; peat; waste wood; forest residues; industrial sludge; limestone; CFB boiler; ash transformation; corrosion; erosion; ash and deposit characteristics; deposit buildup; boiler failures; availability; sulfation; boiler design; boiler conversion; waste derived fuels; large scale; Samförbränning; animaliskt avfall; torv; returträ; skogsbränsle; reningsslam; askomvandling; korrotion; erosion; ask- och beläggnings-karaktäristik; beläggningstillväxt; tillgänglighet; sulfatisering; panndesign; pannkonvertering; avfallsderiverade bränslen; storskalig;

    Sammanfattning : The direct variable costs for heat and electricity production based on solid biomass fuel combustion is approximately 3-5 times lower than the costs in a fossil fuel-oil based boiler in Sweden. In addition waste derived biomass fuels are typically much cheaper than biomass not classified as waste. LÄS MER

  3. 12. Lärande i teamorganiserad produktion : en studie av tre industriföretag

    Författare :Henrik Kock; Per-Erik Ellström; Linköpings universitet; []
    Nyckelord :organizational learning; work organization; production management; teamorganiserad produktion; lärande; lärvillkor; lärande organisationer; arbetsgrupper; organisationsteori; personalutveckling; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : The purpose of the thesis was to use case studies of three manufacturing companies to describe and problematize the significance of team-based production for the operatives' learning conditions and learning activities, and to describe how these change over a period of time.The view of learning on which the thesis is based can be described as an integrative view, where the learning perspective is directed towards work and the working duties of the team, the organizational context and the ideas. LÄS MER

  4. 13. Process intensification in mechanical pulping : Reduced process complexity and improved energy efficiency

    Författare :Christer Sandberg; Per Engstrand; Jan-Erik Berg; Göran Bengtsson; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This work shows that, for newsprint quality grades, the production processes for mechanical pulp can be simplified, and the specific electrical energy demand can be reduced with around 600 kWh/ton (30%). The purpose of the work is to demonstrate how the production cost for mechanical pulps can be decreased through increased energy efficiency and reduced number of unit operations. LÄS MER

  5. 14. Information management for the factory planning process

    Författare :Danfang Chen; Torsten Kjellberg; Pär Mårtensson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Factory design; information management; models; digital factory; layout design; factory design; Manufacturing engineering; Produktionsteknik;

    Sammanfattning : This thesis is based on the present needs for the factory planning support, of which the most important ones are: • A structured reuse of knowledge and support for industries. Because today the industry handbook in factory planning is not satisfying enough to support this complex process. LÄS MER

  7. 15. A study of process planning for metal cutting

    Författare :Staffan Anderberg; Lars Pejryd; Tomas Beno; Mats Andersson; Högskolan Väst; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process planning; CAPP; CAM; efficiency; performance; green manufacturing; sustainable machining; CNC; Produktionsberedning; effektivitet; grön tillverkning; Industrial engineering and economy; Industriell teknik och ekonomi; Manufacturing engineering; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik;

    Sammanfattning : Process planning as a function for competitiveness is often neglected. However, as an intermediary between product development and manufacturing, it holds a key function in transforming product specifications and requirements into a producible process plan. LÄS MER