Browsing NTNU Open by Author "Cloete, Schalk"
Now showing items 1-8 of 8
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Ammonia as an Alternative to LNG
Farmen, Øistein (Master thesis, 2023)Kostnadseffektiv dekarbonisering av den globale energiforsyningen blir stadig viktigere for å redusere de økende sosioøkonomiske kostnadene knyttet til klimaendringer. Denne masteroppgaven undersøker potensialet for å ... -
An assessment of the ability of computational fluid dynamic models to predict reactive gas-solid flows in a fluidized bed
Cloete, Schalk; Johansen, Stein Tore; Amini, Shahriar (Journal article; Peer reviewed, 2012)Fine grid, two dimensional simulations of reactive gas–solid flows occurring in a fluidized bed reactor were carried out using the Eulerian multi-fluid kinetic theory of granular flow (KTGF) approach in the commercial flow ... -
Comparison of phenomenological and fundamental modelling approaches for predicting fluidized bed reactor performance
Cloete, Schalk; Zaabout, Abdelghafour; Johansen, Stein Tore; Amini, Shahriar (Journal article; Peer reviewed, 2012)Two approaches to modelling fluidized bed reactors were evaluated and compared in this work: a phenomenological 1D approach based on empirical closures and a more fundamental 2D approach based on computational fluid dynamics ... -
Evaluation of a filtered model for the simulation of large scale bubbling and turbulent fluidized beds
Cloete, Schalk; Johansen, Stein Tore; Amini, Shahriar (Journal article; Peer reviewed, 2013)Full 3D flow simulations of lab and industrial scale dense fluidized beds were carried out using a filtered Eulerian-Eulerian approach. Filtered closures for interphase momentum exchange, solids stresses and additional ... -
Holistic economic and environmental optimization of future energy systems
Shen, Haiping (Master thesis, 2023)The energy transition requires secure, affordable, and sustainable solutions to mitigate climate change and other ecological damages. However, energy supply involves complex and diverse resource-intensive sectors in the ... -
Performance evaluation of a complete Lagrangian KTGF approach for dilute granular flow modelling
Cloete, Schalk; Johansen, Stein Tore; Amini, Shahriar (Journal article; Peer reviewed, 2012)Finely resolved gas–solid flow simulations were carried out using an improved Lagrangian method known as the dense discrete phase model (DDPM). The DDPM differs from the traditional Eulerian two fluid model (TFM) approach ... -
Prediction of Reactive Multiphase Flows in Chemical Looping Combustion
Cloete, Schalk (Doktoravhandlinger ved NTNU, 1503-8181; 2014:167, Doctoral thesis, 2014)The fundamental motivation behind this work is the large mismatch between the current trajectory of the global economy and the recommendations of climate science. Given the economic pressures created by the seemingly ... -
Techno-economic assessment of direct air capture powered by nuclear energy
Bekkelund, Maria Louise (Master thesis, 2024)Med økende søkelys på å nå netto null-utslipp (NZE) innen 2050 retter flere oppmerksomheten mot teknologier som reduserer mengden akkumulert CO2 i atmosfæren, slik som direct air capture (DAC). DAC er en energikrevende ...