Sökning: "Steady state kinetics"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Steady state kinetics.

  1. 1. On linear Reaction-Diffusion systems and Network Controllability

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Rebecka Aulin; Felicia Hage; [2023]
    Nyckelord :Turing s model of morphogenesis; FDM; FEM; Controllability; Minimal Control; Least Energy Control;

    Sammanfattning : In 1952 Alan Turing published his paper "The Chemical Basis of Morphogenesis", which described a model for how naturally occurring patterns, such as the stripes of a zebra and the spots of a leopard, can arise from a spatially homogeneous steady state through diffusion. Turing suggested that the concentration of the substances producing the patterns is determined by the reaction kinetics, how the substances interact, and diffusion. LÄS MER

  3. 2. Inhibition Kinetics of Hydrogenation of Phenanthrene

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Johannes Johansson; [2019]
    Nyckelord :Catalytic hydrotreating; Phenanthrene; Inhibition kinetics; Model development; Nonlinear regression;

    Sammanfattning : In this thesis work the hydrogenation kinetics of phenanthrene inhibited by the basic nitrogen compound acridine and the non-basic carbazole was investigated. Based on a transient reactor model a steady state plug flow model was developed and kinetic parameters were estimated through nonlinear regression to experimental data. LÄS MER

  4. 3. Understanding the effect of temperature and time on Gamma prime coarsening for Nickel-base superalloy Haynes 282

    Master-uppsats, KTH/Materialvetenskap

    Författare :Kevin Vattappara; [2019]
    Nyckelord :Haynes 282; gamma prime 𝛾′ ; Arc-heat treatment; COMSOL modelling; isothermal transformation; coarsening; Thermo-Calc simulations;

    Sammanfattning : Haynes 282 is a gamma prime (𝛾′)-strengthened nickel base superalloy developed in 2005, exhibiting a good combination of high temperature properties and fabricability. Microstructural features such as 𝛾′ and carbides play an important role in deriving the mechanical properties of the alloy during heat treatment. LÄS MER

  5. 4. Optimal steady-state design of bioreactors in series with Monod growth kinetics

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

    Författare :Molin Hanna; [2018]
    Nyckelord :bioreactor; CSTR; PFR; optimization; modelling; Monod kinetics; decay rate; bioreaktorer; CSTR; PFR; optimering; modellering; Monod-kinetik; avdödningshastighet;

    Sammanfattning : Bioreactors are used to carry out bioprocesses and are commonly used in e.g. biogas production and wastewater treatment. Two common hydraulic models of bioreactors are the continuous stirred tank reactor (CSTR) and the plug-flow reactor (PFR). LÄS MER

  7. 5. Modellering av pyrolys i roterande trumma

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Aekjuthon PHOUNGLAMCHEIK; [2015]
    Nyckelord :Biomass; gasification; pyrolysis; reactor technology;

    Sammanfattning : This project focuses on the numerical modeling of a rotary kiln pyrolyzer such as found in the e.g. WoodRoll multistage gasification process. The model consists of two parts: a granular flow model, and a pyrolyzer model. LÄS MER