Search for dissertations about: "simulering"

Showing result 1 - 5 of 186 swedish dissertations containing the word simulering.

  1. 1. Numerical Modelling of Self-Compacting Concrete Flow Discrete and Continuous Approach

    University dissertation from Stockholm : US-AB

    Author : Annika Gram; KTH.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SCC; rheology; Simulation of Flow; Simulering; Flöde; Självkompakterande Betong; Reologi; TECHNOLOGY Materials science Construction materials; TEKNIKVETENSKAP Teknisk materialvetenskap Konstruktionsmaterial;

    Abstract : With the advent of Self-Compacting Concrete (SCC) that flows freely, under the soleinfluence of gravity, the wish for hassle-free and predictable castings even in complexcases, spurged the simulation of concrete flow as a means to model and predictconcrete workability. To achieve complete and reliable form filling with smoothsurfaces of the concrete, the reinforced formwork geometry must be compatible withthe rheology of the fresh SCC. READ MORE

  2. 2. A Simulation-Optimization Approach for Improved Robustness of Railway Timetables

    University dissertation from Stockholm : Kungliga Tekniska högskolan

    Author : Johan Högdahl; KTH.; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Railroad; Timetabling; Optimization; Simulation; Robustness; Punctuality; Delay prediction.; Järnväg; Tidtabelläggning; Optimering; Simulering; Robusthet; Punktlighet; Förseningsprediktion.; Transportvetenskap; Transport Science; Transportsystem; Transport Systems;

    Abstract : The timetable is an essential part for the operations of railway traffic, and its quality is considered to have large impact on capacity utilization and reliability of the transport mode. The process of generating a timetable is most often a manual task with limited computer aid, and is known to be a complex planning problem due to inter-train dependencies. READ MORE

  3. 3. A systematic approach for major renovation of residential buildings

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Linn Liu; Linköpings universitet.; Linköpings universitet.; [2017]
    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; NATURVETENSKAP; NATURAL SCIENCES; energy efficiency; renovation; residential buildings; listed buildings; simulation; optimization; LCC; categorization; energy efficiency measure package; indoor environment; energy targets; CO2 emission; primary energy use; energieffektivisering; renovering; bostäder; historiska byggnader; simulering; optimering; LCC; kategorisering; energieffektiviseringsåtgärdspaket; inomhusmiljö; energimål; CO2-utsläpp; primärenergianvändning;

    Abstract : In Sweden, buildings are responsible for about 40 % of total energy use and about 10 % of total CO2 emissions Today more than 60 % of existing Swedish residential buildings are over 40 years old and are in need of major renovation. In addition, 15 % of all multi-family buildings and 27 % of all single-family houses were built before 1945. READ MORE

  4. 4. Lärande simulering eller simulerat lärande? en studie av fyra elevers lärande av styrteknik med användning av ett datorbaserat inlärningsprogram på gymnasieskolans elprogram

    University dissertation from Stockholm : HLS Förlag

    Author : Ingrid Berglund; Stockholms universitet.; [2005]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Yrkesutbildning; Datorstödd undervisning; Inlärning; Datorsimulering; Informationsteknik-- Sverige; Datorstödd undervisning-- Sverige; Databehandling; Gymnasieskolan; Utbildning; Undervisning;

    Abstract : .... READ MORE

  5. 5. Magnetic Refrigeration for Near Room-Temperature Applications

    University dissertation from KTH Royal Institute of Technology

    Author : Behzad A Monfared; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Magnetic Refrigeration; Magnetic; Cooling; Magnetocaloric; Life Cycle Assessment; Modeling; Simulation; Optimization; Regeneration; Active Magnetic Regeneration; Bonded Regenerator; Heat Switch; Thermal Diode; Peltier; Solid-State; Prototype; Magnetisk Kylteknik; Magnetisk; Kylning; Magnetokalorisk; Livscykela-nalys; Modellering; Simulering; Optimering; Regenerering; Aktiv Mag-netisk Regenerering; Bunden Regenerator; Värmebrytare; Termodiod; Peltier; Solid-State; Prototyp; Energiteknik; Energy Technology;

    Abstract : Refrigeration plays a crucial role in many different sectors and consumes about 17% of the electricity produced globally. This significant energy consumption implies large share of refrigeration in primary energy consumption and other environmental impacts. READ MORE