Essays about: "Thermal cracking model"

Showing result 6 - 10 of 15 essays containing the words Thermal cracking model.

  1. 6. Potential of chemical recyclingto improve the recycling of plastic waste

    University essay from KTH/Energi och klimatstudier, ECS

    Author : Martyna Solis; [2018]
    Keywords : recycling; chemical recycling; plastic waste; plastic packaging; recycling rates; circular economy; Sweden; Stockholm; Stockholm Exergi; återvinning; kemisk återvinning; plastavfall; plastförpackning; återvinningsgrad; cirkulär ekonomi; Sverige; Stockholm; Stockholm Exergi;

    Abstract : Chemical recycling can improve the plastic recycling rates and reduce the level of CO2 from fossil plasticsproduction. Thus, it is seen as an attractive technology in the action towards meeting the emission, circulareconomy and recycling targets. In the Swedish context, it could help reach the carbon neutrality goal by2045. READ MORE

  3. 7. A High Heat Flux Facility Design forTesting of Methane in Rocket NozzleCooling Channels

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Richard Ristic; [2017]
    Keywords : ;

    Abstract : Liquid natural gas, with a high content of methane, is one of the most prominent future solutions for rocket propellants. This is due to its efficiency in terms of specific thrust, in combination with several operational benefits including availability, storage stability and low toxicity. READ MORE

  4. 8. Thermal cracking of a concrete arch dam due to seasonal temperature variations

    University essay from KTH/Betongbyggnad

    Author : Jonas Enzell; Markus Tollsten; [2017]
    Keywords : Arch dam; Concrete; Finite element analysis; Cracking; Progressive failure analysis; Valvdamm; Betong; Finit elementanalys; Sprickor; Progressiv brottanalys;

    Abstract : Concrete dams located in northern regions are exposed to large seasonal temperature variations. These seasonal temperature variations have resulted in cracking in thin concrete dams. Continuous monitoring and evaluation of existing dams are important to increase the knowledge about massive concrete structures and to ensure dam safety. READ MORE

  5. 9. Numerical analyses of concrete buttress dams to design dam monitoring

    University essay from KTH/Betongbyggnad

    Author : Daniel Svensen; [2016]
    Keywords : Concrete; buttress dams; thermal effects; finite element analysis; instrumentation; alarm values; alert values; Betong; lamelldammar; termiska effekter; finit element analys; intstrumentering; larmvärden;

    Abstract : Old concrete buttress dams are sensitive to cracking if exposed to large temperature variations. The cracks can make dams sensitive to failure, depending on the size and location of the cracks. These problems can be overcome by lowering the temperature variations and stabilizing the dams. READ MORE

  6. 10. Cracking Assessment of Concrete Slab Frame Bridges Exposed to Thermally Induced Restraint Forces

    University essay from KTH/Betongbyggnad

    Author : Jonatan Ledin; Christensen Oskar; [2015]
    Keywords : Concrete slab frame bridges; Restraint forces; Thermal actions; Non linear FE analysis;

    Abstract : The usage of linear 3D FEA is widespread within the bridge design community, and although this tool provides substantial benefits in the design process, there are certain practical issues related to the application of this analysis tool. A situation in which such an issue prevails is when linear 3D FEA is used to analyze restraint forces due to thermal shrinkage or expansion in concrete slab frame bridges. READ MORE