Essays about: "spinning"

Showing result 11 - 15 of 84 essays containing the word spinning.

  1. 11. Mechanical properties of viscose filament : Made from recycled cotton textile and softwood dissolving pulp

    University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Author : Sanne Karlsson; [2022]
    Keywords : Recycled cotton textile; recycled textile; dissolving pulp; wood dissolving pulp; softwood; viscose dope; viscose filament; the viscose process; spinning process; Återvunnen bomullstextil; återvunnen textil; dissolvingmassa; trädissolvingmassa; barrved; viskos dop; viskosfilament; viskosprocessen; spinningprocess;

    Abstract : The textile industry is one of the largest industries in the world and it causes up to 10 % of the global greenhouse gas emissions. With large environmental issues of cotton- and oil-based textiles, other options are explored such as man-made fibers producing fibers like viscose and lyocell. READ MORE

  3. 12. Development of a Flow Dependent Chemical Reaction Model using CFD

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Martin Östman; [2022]
    Keywords : CFD; Fluid mechanics; Rotating Bed Reactor; Ansys Fluent; Decolorization; CFD; Strömningsmekanik; Roterande Bäddreaktor; Ansys Fluent; Avfärgningsprocess;

    Abstract : In many technical applications chemical reactions are used. One of these is a so called decolorization, in which an ion exchange resin is used to remove a dye from water. To apply this decolorization technique a Rotating Bed Reactor, or RBR for short, can be used. It is filled with the ion exchange resin and spun inside the water. READ MORE

  4. 13. Wet Spinning of Lignin and Cellulose Precursor Fibers Using Cold Sodium Hydroxide Dissolution

    University essay from KTH/Fiber- och polymerteknologi

    Author : Nazariy Voytyuk; [2022]
    Keywords : Alkaline Dissolution; Cold Alkali Process; Lignin; Precursor Fibers; Wet spinning; Alkalisk upplösning; Kall alkaliprocess; Lignin; Prekursorfibrer; Våtspinning;

    Abstract : Användningen av cellulosa och lignin för prekursorfibrer (PF) för kolfibrer (CF) är ett mycket intressant forskningsområde på grund av den stora miljöpåverkan som dagens PF-fossilbaserade råvara PAN har. Denna avhandling fokuserar på att utveckla PF med ett kallt NaOH-upplösningssystem med cellulosakoncentrationer från 4,5 till 5,5 viktprocent med varierande massaviskositet och tillsats av lignin från 0-40 viktprocent jämfört med cellulosa. READ MORE

  5. 14. Analysis of implementing additive manufacturing for the making of casting patterns

    University essay from Lunds universitet/Industriell Produktion

    Author : Simon Håkansson; [2022]
    Keywords : 3D-printing; additive; manufacturing; polymer; plastic; wood; pattern; casting; molding; vacuum; sand; ABS; milling; turning; Technology and Engineering;

    Abstract : I den här rapporten undersöks möjligheten för att tillverka och använda gjutmodeller tillverkade genom additiv tillverkning, i folkmun kallat 3D-printing. Först görs en grundläggande analys över hur modellerna tillverkas idag och vilka krav som ställs på modellen. READ MORE

  6. 15. Spinning Correlators at Finite Temperature

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Oscar Arandes Tejerina; [2022]
    Keywords : Conformal Field Theory; Finite Temperature; Thermal Conformal Blocks; AdS CFT; Mean Field Theory;

    Abstract : This master thesis is framed in the striking correspondence between gravity theories in Anti-de Sitter spacetime (AdS) and Conformal Field Theories (CFT). This is usually known as AdS/CFT duality and relates gravity theories in the bulk with CFTs that live in their conformal boundary. READ MORE