Search for dissertations about: "efficient process"

Showing result 1 - 5 of 1626 swedish dissertations containing the words efficient process.

  1. 1. Biomass conversion through syngas-based biorefineries thermochemical process integration opportunities

    University dissertation from Umeå : Umeå universitet

    Author : Katarina Åberg; Anders Nordin; Linda Pommer; Erik Dahlquist; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biomass; biorefinery; thermochemical conversion; torrefaction; slow pyrolysis; gasification; process integration; carbon negativity;

    Abstract : The replacement of fossil resources through renewable alternatives is one way to mitigate global climate change. Biomass is the only renewable source of carbon available for replacing oil as a refining feedstock. Therefore, it needs to be utilized not just as a fuel but for both biochemical and thermochemical conversion through biorefining. READ MORE

  2. 2. Bio-SNG from Thermal Gasification - Process Synthesis, Integration and Performance

    University dissertation from Umeå : Umeå universitet

    Author : Stefan Heyne; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; process integration; process modelling; performance indicators; biomass; energy systems; synthetic natural gas; gasification;

    Abstract : Biomethane or synthetic natural gas (Bio-SNG) produced from gasified renewable woody biomass is a promising option for replacing fossil natural gas. The complete interchangeability with natural gas in all its conventional applications such as in the power generation, transportation and chemical industry sector is of particular interest. READ MORE

  3. 3. Model-Driven Process Design Aligning Value Networks, Enterprise Goals, Services and IT Systems

    University dissertation from Stockholm : Department of Computer and Systems Sciences, Stockholm University

    Author : Erik Perjons; Paul Johannesson; Anders G. Nilsson; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; business process design; e-process design; model-driven methods; enterprise modelling; business modelling; enterprise goals; services; value networks; business-IT alignment; design science; SOCIAL SCIENCES Statistics; computer and systems science Informatics; computer and systems science Computer and systems science; SAMHÄLLSVETENSKAP Statistik; data- och systemvetenskap Informatik; data- och systemvetenskap Data- och systemvetenskap; Computer and Systems Sciences; data- och systemvetenskap;

    Abstract : The purpose of business-IT alignment is to optimise the relation between business and IT in order to maximise the business value of IT. Successful business-IT alignment can be enabled by business processes and e-processes functioning as adaptive mediators between business and IT systems. READ MORE

  4. 4. Model driven process planning for machining : Theory, application and improved information standards for efficient product realization

    University dissertation from Stockholm : Department of Computer and Systems Sciences, Stockholm University

    Author : Mikael Hedlind; Torsten Kjellberg; Fumihiko Kimura; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process planning; modeling; ISO 10303; CADCAM; kinematics; Beredning; modellering; ISO 10303; CADCAM; kinematik; SRA - Production; SRA - Produktion;

    Abstract : Model driven process planning is a methodology that emphasizes the application of models to create, represent and use information of products, processes and resources. Industry today stores information in a fragmented manner, mainly document centered with the consequence of data duplication requiring comprehensive data management and maintenance. READ MORE

  5. 5. Efficient Development of Vehicle Configuration Rules

    University dissertation from Stockholm : Department of Computer and Systems Sciences, Stockholm University

    Author : Anna Tidstam; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; process modeling.; development process; matrix-based visualization; vehicle configuration; configuration rules; information modelling;

    Abstract : The aim of this PhD thesis is to describe an efficient and user-friendly development process for vehicle configuration rules. The development of vehicle configuration rules precedes the sales configuration, and is the process of authoring, evaluating and releasing configuration rules sets. READ MORE