Essays about: "kemiteknik"

Showing result 1 - 5 of 159 essays containing the word kemiteknik.

  1. 1. Chemical recycling of cotton-based waste textiles by sulfuric acid hydrolysis

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Edvin Ruuth; [2020]
    Keywords : recycling; hydrolysis; cotton; waste textiles; sulfuric acid; glucose; chemical engineering; kemiteknik; Technology and Engineering;

    Abstract : Large amounts of waste textiles are produced annually, of which only a small fraction is recycled currently. The purpose of this study was to develop a method to recycle cotton-based waste textiles chemically that can be coupled to the production of biofuels or green chemicals. READ MORE

  2. 2. Defining requirements of PET scrap for open loop recycling of post-industrial waste

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Josephine Digné; [2020]
    Keywords : Chemical Engineering; plastics; thermoplastics; PET; polyethylene terephthalate; foamed plastics; recycling; post-industrial waste; circular economy; återvinning; kemiteknik; Technology and Engineering;

    Abstract : To reduce the environmental impact and minimize the exploitation of the depleting re-sources, the transition to a circular economy is vital. It proposes an economy of reduced ma-terial consumption and increased reuse and recycling of plastics and other materials. READ MORE

  3. 3. Investigation of Governing Physics in a PEM Electrolyzer

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Kian Hajireza; [2020]
    Keywords : electrochemistry; polymer-electrolyte membrane; electrolysis; hydrogen production; COMSOL; physics-based mode; multiphase transport; chemical engineering; kemiteknik; Technology and Engineering;

    Abstract : Hydrogen gas is an energy source that has an energy density (per mass) that is three times as large than the energy density of natural gas. This qualifies hydrogen gas as a prime candidate for the fuel of tomorrow. One of the main research areas for hydrogen include the production of it as there are a vast amount of methods of hydrogen production. READ MORE

  4. 4. Dimples in corrugated channels to improve efficiency in plate heat exchangers

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Gustav Karlsson; [2020]
    Keywords : Dimples; Plate Heat Exchangers; Heat Transfer Enhancement; CFD; Large Eddy Simulation; Reynolds Averaged Navier Stokes Simulation; chemical engineering; kemiteknik; Technology and Engineering;

    Abstract : The development of new heat exchanger patterns is ever changing. Companies are constantly pushing innovation to satisfy costumer needs in terms of thermal efficiency, reliability and serviceability. In this thesis, the implementation of dimples in the corrugated pattern of a plate heat exchanger is investigated to increase the thermal efficiency. READ MORE

  5. 5. Environmental Impact of a Portable Photo Flash - Using Life Cycle Assessment Methodology

    University essay from KTH/Kemiteknik

    Author : Tim Storfeldt Moqvist; [2020]
    Keywords : LCA; Sustainability; Chemistry; Photoflash; Photography; Hållbarhet; Livscykelanalys; Kemi; Foto; Fotoblixt; Lampa;

    Abstract : This study was about performing an LCA on a portable flash unit, C1, made by Profoto. The goal was to get an overview of the environmental impact of the C1 and to investigate hotspots in the production and/or use phase of the C1. READ MORE