Sökning: "Chemical Kinetics"

Visar resultat 16 - 20 av 64 uppsatser innehållade orden Chemical Kinetics.

  1. 16. Correlating Photoconductivity with Photochromism in Oxygen-containing Rare-earth Metal Hydride Thin Films

    Master-uppsats, Uppsala universitet/Materialfysik

    Författare :Suraya Kazi; [2021]
    Nyckelord :Rare-earth metal hydride; Thin film synthesis; Thin film characterization; Optical properties; Electrical properties; Chemical composition; Photochromic materials; Photoconductivity;

    Sammanfattning : Scientists have recently discovered simultaneous photoconductivity and photochromism (i.e., optical switching upon light exposure) of oxygen-containing rare-earth metal hydrides (REMHO). A deep understanding of these extraordinary optical and electrical properties can open the door to advanced technological uses such as smart windows. LÄS MER

  3. 17. Review and Design Adaptations of a SrCl2-NH3 bench-scale Thermochemical Heat Storage system

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Hjörtur Brynjarsson; [2021]
    Nyckelord :Thermochemical heat storage TCS ; SrCl2-NH3; system design; kinetics; absorption; desorption; octaammine; diammine; monoammine; pressure management; commissioning; Termokemisk värmelagring TCS ; SrCl2-NH3; systemdesign; kinetik; absorption; desorption; oktaammin; diammin; monoammin; tryckhantering; driftsättning;

    Sammanfattning : Thermochemical heat storage (TCS) is a thermal energy storage (TES) technology used to store thermal energy for later use. TCS can provide heating or cooling services from intermittently available thermal energy, often low grade waste heat. LÄS MER

  4. 18. Implementation of Reaction Kinetics into Reactor Model Followed by Validation of the Reactor Model

    M1-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Rebecka Svensson; [2021]
    Nyckelord :Modeling; Reaction kinetics; Chemical Engineering; Technology and Engineering;

    Sammanfattning : This master thesis project was performed in collaboration with Johnson Matthey. Johnson Matthey is a worldwide company working with sustainable technologies. The site in Perstorp, where this work was performed, focus on formaldehyde production. In order to continuously improve chemical processes, simulation and modeling are advantageous tools. LÄS MER

  5. 19. Process simulation of HMF production from wheat bran and sugar beet pulp

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Matilda Petersson; [2021]
    Nyckelord :5-hydroxymethylfurfural; Wheat bran; Sugar beet pulp; Process simulation; Aspen Plus; Biorefinery; Chemical engineering; Technology and Engineering;

    Sammanfattning : Due to the progressing environmental problems related to global warming, the chemical industry is transitioning from fossil to renewable feedstocks. For added environmental benefits, surplus biomass from the agricultural industry which currently does not have any high-value applications can be used for production of chemicals. LÄS MER

  7. 20. A parallel implementation of spatially distributed stochastic chemical kinetics

    Kandidat-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Pontus Melin; [2020]
    Nyckelord :;

    Sammanfattning : Stochastic simulation of reaction kinetics has emerged as animportant computational tool in molecular systems biology and will likely continue to grow in importance as experimental techniques are further developed and spatial models can be calibrated to biological data. Many applications require a large number of sample realizations to be generated in order to allow for useful statistical analysis. LÄS MER