Jezik: | Slovenski jezik |
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Leto izida: | 2022 |
Tipologija: | 2.09 - Magistrsko delo |
Organizacija: | UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo |
Založnik: | [A. Grebenc] |
UDK: | 66.02:544.272(043.2) |
COBISS: | 102151683 |
Št. ogledov: | 122 |
Št. prenosov: | 31 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
Sekundarni jezik: | Angleški jezik |
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Sekundarni naslov: | Modeling of enzyme catalyzed biotransformation with immobilized enzymes on magneric nanoparticles in a microreactor system |
Sekundarni povzetek: | We use simulations of molecular dynamics to describe behavior of magnetic nanoparticles in a microchannel. Magnetic interactions between magnetic dipoles are used to describe attractive forces and torques. We try to achieve the minimum distance between nanoparticles using the Lennard-Jones potential. This approach proves to be appropriate. Then we try to retain nanoparticles in the entire volume of the microchannel using a magnetic coil. We find this approach problematic because of small flow through the microchannel. We use an electromagnet and a different direction of the magnetic field in an attempt to increase it. We successfully retain nanoparticles close to the wall. Then we calculate porosity for the formed structure. In the next step we use fluid mechanics simulations. We base them on the lattice Boltzmann method. Algorithms are written in the C ++ programming language. We have to check the accuracy of algorithms on problems with an analytical solution. The influence of nanoparticle structure is included in the simulation using previously calculated porosity. This turns out to be a good approach. The rate of biotransformation is described using Michaelis-Menten kinetics. The simulation gives us a result that makes sense. Calculated substrate conversion is in agreement with the estimate we made using characteristic times. |
Sekundarne ključne besede: | modeling;simulations;lattice Boltzmann method;behaviour of magnetic nanoparticles;LAMMPS;Molekularna dinamika;Dinamika tekočin;Univerzitetna in visokošolska dela; |
Vrsta dela (COBISS): | Magistrsko delo/naloga |
Študijski program: | 1000376 |
Komentar na gradivo: | Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, smer Kemijsko inženirstvo |
Strani: | XVII, 69 str. |
ID: | 14825823 |