Search for dissertations about: "efficient process"

Showing result 1 - 5 of 1567 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; Umeå universitet.; [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. Methods for improving performance of process planning for CNC machining an approach based on surveys and analytical models

    University dissertation from Göteborg : Chalmers tekniska högskola

    Author : Staffan Anderberg; Högskolan Väst.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing and materials engineering; Produktions- och materialteknik; Process planning; CNC machining; metal cutting; performance; process capability; environment; energy;

    Abstract : Process planning as an enabler of competiveness is often overlooked, but being one of the principal function in the product realisation flow it holds a key role by combining both product and production requirements into a production concept with respect to the current manufacturing system. As such the capability of process planning to a large extent dictates production cost, lead times, product quality etc. READ MORE

  4. 4. Design of Business Process Model Repositories Requirements, Semantic Annotation Model and Relationship Meta-model

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

    Author : Mturi Elias; Stockholms universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; business process; business process model; business process repository; semantic annotation; Computer and Systems Sciences; data- och systemvetenskap;

    Abstract : Business process management is fast becoming one of the most important approaches for designing contemporary organizations and information systems. A critical component of business process management is business process modelling. READ MORE

  5. 5. 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; Stockholms universitet.; [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