Blar i NTNU Open på forfatter "Cloete, Schalk Willem Petrus"
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Multiscale modelling of packed bed chemical looping reforming
Singhal, Arpit; Cloete, Schalk Willem Petrus; Quinta-Ferreira, Rosa; Amini, Shahriar (Journal article; Peer reviewed, 2017)A comparison of reactive flows on two distinct scales is presented here (i) Particle resolved direct numerical simulation (PR-DNS), and (ii) 1D packed bed model. The PR-DNS geometry is meshed with polyhedral elements both ... -
On the choice of closure complexity in anisotropic drag closures for filtered Two Fluid Models
Cloete, Jan Hendrik; Cloete, Schalk Willem Petrus; Radl, Stefan; Amini, Shahriar (Peer reviewed; Journal article, 2019)Filtered Two Fluid Models (fTFMs) aim to enable accurate industrial-scale simulations of fluidized beds by means of closures accounting for the effects of bubbles and clusters. The present study aims to improve anisotropic ... -
Pathways to low-cost clean hydrogen production with gas switching reforming
Nazir, Shareq Mohd; Cloete, Jan Hendrik; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2020)Gas switching reforming (GSR) is a promising technology for natural gas reforming with inherent CO2 capture. Like conventional steam methane reforming (SMR), GSR can be integrated with water-gas shift and pressure swing ... -
Review of pressurized chemical looping processes for power generation and chemical production with integrated CO2 capture
Osman, Mogahid; Khan, Mohammed Nazeer Ul Hasan; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2021)Chemical looping has great potential for reducing the energy penalty and associated costs of CO2 capture from fossil fuel-based power and chemical production while maintaining high efficiency. However, pressurized operation ... -
Review on reactor configurations for adsorption-based CO2 capture
Dhoke, Chaitanya; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2021)Adsorption-based CO2 capture has enjoyed considerable research attention in recent years. Most of the research efforts focused on sorbent development to reduce the energy penalty. However, the use of suitable gas–solid ... -
Simulation-Based Design and Economic Evaluation of a Novel Internally Circulating Fluidized Bed Reactor for Power Production with Integrated CO2 Capture
Cloete, Jan Hendrik; Khan, Mohammed Nazeer Ul Hasan; Cloete, Schalk Willem Petrus; Amini, Shahriar (Journal article; Peer reviewed, 2019)Limiting global temperature rise to well below 2 °C according to the Paris climate accord will require accelerated development, scale-up, and commercialization of innovative and environmentally friendly reactor concepts. ... -
Sorbents screening for post-combustion CO2 capture via combined temperature and pressure swing adsorption
Dhoke, Chaitanya; Cloete, Schalk Willem Petrus; Krishnamurthy, Shreenath; Seo, Hwimin; Luz, Ignacio; Soukri, Mustapha; Park, Yong-ki; Blom, Richard; Amini, Shahriar; Zaabout, Abdelghafour (Peer reviewed; Journal article, 2020)Adsorption-based post-combustion CO2 capture is enjoying significant research attention due to its potential for significant reductions in energy penalty, cost and environmental impact. Recent sorbent development work has ... -
Study of the Cost Reductions Achievable from the Novel SARC CO2 Capture Concept Using a Validated Reactor Model
Dhoke, Chaitanya; Cloete, Schalk Willem Petrus; Amini, Shahriar; Zaabout, Abdelghafour (Peer reviewed; Journal article, 2021)New process concepts, such as the swing adsorption reactor cluster (SARC) CO2 capture process, are often techno-economically investigated using idealized modeling assumptions. This study quantifies the impact of this ... -
Techno-economic assessment of the novel gas switching reforming (GSR) concept for gas-fired power production with integrated CO2 capture
Nazir, Shareq Mohd; Cloete, Schalk Willem Petrus; Bolland, Olav; Amini, Shahriar (Journal article, 2018)The focus of this study is to carry out techno-economic analysis of a pre-combustion capture method in Natural Gas based power plants with a novel reactor concept, Gas Switching Reforming (GSR). This reactor concept enables ... -
Techno-economic Comparison Of Combined Cycle Power Plants With Pre-combustion CO2 Capture Via Two Different Reforming Methods: Chemical Looping Reforming And Gas Switching Reforming
Nazir, Shareq Mohd; Cloete, Jan Hendrik; Cloete, Schalk Willem Petrus; Amini, Shahriar (Journal article, 2018)This paper focuses on the techno-economic comparison of gas-fired combined cycle power plants with CO2 capture and two reforming methods, chemical looping reforming (CLR) and gas-switching reforming (GSR). The overall ... -
The effect of frictional pressure, geometry and wall friction on the modelling of a pseudo-2D bubbling fluidised bed reactor
Cloete, Schalk Willem Petrus; Johansen, Stein Tore; Zaabout, Abdelghafour; van Sint Annaland, Martin; Gallucci, Fausto; Amini, Shahriar (Journal article; Peer reviewed, 2015)The two fluid model (TFM) closed by the kinetic theory of granular flows (KTGF) has been developed to a high level of maturity over the past three decades. However, significant uncertainties still remain about the influence ... -
The generality of the standard 2D TFM approach in predicting bubbling fluidized bed hydrodynamics
Cloete, Schalk Willem Petrus; Zaabout, Abdelghafour; Johansen, Stein Tore; Annaland, MV; Gallucci, F; Amini, Shahriar (Journal article; Peer reviewed, 2013)Hydrodynamic simulations of a pseudo-2D bubbling fluidized bed were carried out and compared to experiments conducted over a wide range of flow conditions. The primary purpose of this study was to assess the generality of ... -
The potential of chemical looping combustion using the gas switching concept to eliminate the energy penalty of CO2 capture
Arnáiz del Pozo, Carlos; Cloete, Schalk Willem Petrus; Cloete, Jan Hendrik; Jiménez Álvaro, Ángel; Amini, Shahriar (Journal article; Peer reviewed, 2019)Energy penalty is the primary challenge facing CO2 capture and storage (CCS) technology. One possible solution to this challenge is gas switching combustion (GSC): a promising technology for gaseous fuel combustion with ... -
The swing adsorption reactor cluster (SARC) for post combustion CO2 capture: Experimental proof-of-principle
Dhoke, Chaitanya; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Seo, Hwimin; Park, Yong-ki; Blom, Richard; Amini, Shahriar (Journal article; Peer reviewed, 2018)This paper presents the first experimental demonstration of the novel swing adsorption reactor cluster (SARC) for post combustion CO2 capture. The SARC concept combines a temperature and vacuum swing for sorbent regeneration. ... -
Verification of heat and mass transfer closures in industrial scale packed bed reactor simulations
Singhal, Arpit; Cloete, Schalk Willem Petrus; Quinta-Ferreira, Rosa; Amini, Shahriar (Journal article; Peer reviewed, 2018)Particle-resolved direct numerical simulation (PR-DNS) is known to provide an accurate detailed insight into the local flow phenomena in static particle arrays. Most PR-DNS studies in literature do not account for reactions ... -
Zero-cost partial decarbonization of natural gas via molten salt pyrolysis
Cloete, Schalk Willem Petrus; Melone, Florine; Arnaiz del Pozo, Carlos; Dhoke, Chaitanya; Farmen, Øistein; Zaabout, Abdelghafour (Peer reviewed; Journal article, 2023)Partial decarbonization of natural gas has the potential to kickstart the hydrogen economy. Up to 20% hydrogen volume can be safely accommodated in existing natural gas networks, removing the problem of insufficient ...