Search Results - "Hendrik Cloete, Jan"

Techno-Economic assessment of natural gas pyrolysis in molten salts by Pruvost, Florian, Cloete, Schalk, Hendrik Cloete, Jan, Dhoke, Chaitanya, Zaabout, Abdelghafour

“…Technical (a) and economic (b) performance of methane pyrolysis in molten salt as function of operating pressure. [Display omitted] •A molten salt pyrolysis…”
Get full text

Carbon-negative hydrogen from biomass using gas switching integrated gasification: Techno-economic assessment by Helf, Antonia, Cloete, Schalk, Keller, Florian, Hendrik Cloete, Jan, Zaabout, Abdelghafour

“…•A novel biomass-to-hydrogen process based on the gas switching integrated gasification.•High efficiency gains facilitated remarkable reduction in hydrogen…”
Get full text

On efficient modelling of radical production in cavitation assisted reactors by Ozan, Suat Canberk, Muller, Pascal Jan, Cloete, Jan Hendrik

“…•Dynamics and chemistry of a cavitating bubble are studied.•Radical OH production is found to correlate strongly with maximum bubble size.•Kinetic and…”
Get full text

The oxygen production pre-combustion (OPPC) IGCC plant for efficient power production with CO2 capture by Arnaiz del Pozo, Carlos, Cloete, Schalk, Hendrik Cloete, Jan, Jiménez Álvaro, Ángel, Amini, Shahriar

“…•Gas Switching Oxygen Production (GSOP) replaces cryogenic air separation.•GSOP is synergistically integrated into a pre-combustion IGCC power…”
Get full text

Exergy Analysis of Gas Switching Chemical Looping IGCC Plants by Arnaiz del Pozo, Carlos, Jiménez Álvaro, Ángel, Cloete, Jan Hendrik, Cloete, Schalk, Amini, Shahriar

“…Integrated gasification combined cycles (IGCC) are promising power production systems from solid fuels due to their high efficiency and good environmental…”
Get full text

Pathways to low-cost clean hydrogen production with gas switching reforming by Nazir, Shareq Mohd, Cloete, Jan Hendrik, Cloete, Schalk, Amini, Shahriar

“…Gas switching reforming (GSR) is a promising technology for natural gas reforming with inherent CO2 capture. Like conventional steam methane reforming (SMR),…”
Get full text

Efficient hydrogen production with CO2 capture using gas switching reforming by Nazir, Shareq Mohd, Cloete, Jan Hendrik, Cloete, Schalk, Amini, Shahriar

“…Hydrogen is a promising carbon-neutral energy carrier for a future decarbonized energy sector. This work presents process simulation studies of the gas…”
Get full text

Hydrodynamic validation study of filtered Two Fluid Models by Cloete, Schalk, Cloete, Jan Hendrik, Amini, Shahriar

“…•New filtered TFM closures for drag and solids stresses are validated.•Good comparisons are achieved over a wide range of fluidization velocities.•The new…”
Get full text

Blue hydrogen and industrial base products: The future of fossil fuel exporters in a net-zero world by Cloete, Schalk, Ruhnau, Oliver, Cloete, Jan Hendrik, Hirth, Lion

“…Is there a place for today's fossil fuel exporters in a low-carbon future? This study explores trade channels between energy exporters and importers using a…”
Get full text

On the choice of closure complexity in anisotropic drag closures for filtered Two Fluid Models by Cloete, Jan Hendrik, Cloete, Schalk, Radl, Stefan, Amini, Shahriar

“…•Drift velocity-based drag closures in filtered Two Fluid Models are considered.•Anisotropic closure complexity is increased by adding independent…”
Get full text

Development and verification of anisotropic drag closures for filtered Two Fluid Models by Cloete, Jan Hendrik, Cloete, Schalk, Municchi, Federico, Radl, Stefan, Amini, Shahriar

“…•Several improvements to drag closures in filtered Two Fluid Models are proposed.•Resolved data reveals the importance of developing anisotropic drag…”
Get full text

Development and verification of anisotropic solids stress closures for filtered Two Fluid Models by Cloete, Jan Hendrik, Cloete, Schalk, Radl, Stefan, Amini, Shahriar

“…•Filtered Two Fluid Model closures for solids stresses are thoroughly investigated.•Meso-scale solids stresses dominate, but other stresses feature at smaller…”
Get full text

Gas switching reforming (GSR) for power generation with CO2 capture: Process efficiency improvement studies by Nazir, Shareq Mohd, Cloete, Jan Hendrik, Cloete, Schalk, Amini, Shahriar

“…This paper presents the process improvement studies of a combined cycle power plant integrated with a novel gas switching reforming (GSR) process for hydrogen…”
Get full text

The future of fuels: Uncertainty quantification study of mid-century ammonia and methanol production costs by Cloete, Schalk, Arnaiz del Pozo, Carlos, Cloete, Jan Hendrik, Jiménez Álvaro, Ángel

“…•Uncertainty in mid-century ammonia and methanol production costs is assessed.•Four feedstocks are investigated: solid fuels, natural gas, renewables, and…”
Get full text

Evaluation of wall friction models for riser flow by Cloete, Jan Hendrik, Cloete, Schalk, Radl, Stefan, Amini, Shahriar

“…Two different approaches for modelling the particle-wall collisions, the frequently employed Johnson & Jackson model and the recently proposed Schneiderbauer…”
Get full text

Gas switching reforming (GSR) for power generation with CO^sub 2^ capture: Process efficiency improvement studies by Nazir, Shareq Mohd, Cloete, Jan Hendrik, Cloete, Schalk, Amini, Shahriar

“…This paper presents the process improvement studies of a combined cycle power plant integrated with a novel gas switching reforming (GSR) process for hydrogen…”
Get full text

The sensitivity of filtered Two Fluid Model to the underlying resolved simulation setup by Cloete, Jan Hendrik, Cloete, Schalk, Municchi, Federico, Radl, Stefan, Amini, Shahriar

“…The filtered Two Fluid Model (fTFM) is a promising approach for enabling large scale fluidized bed reactor simulations using multiphase flow modelling. A…”
Get full text

The potential of chemical looping combustion using the gas switching concept to eliminate the energy penalty of CO2 capture by Arnaiz del Pozo, Carlos, Cloete, Schalk, Cloete, Jan Hendrik, Jiménez Álvaro, Ángel, Amini, Shahriar

“…•Gas Switching Combustion: a concept for CO2 capture with minimal energy penalty.•High potential for efficient power production with CO2 capture from solid…”
Get full text

Integration of gas switching combustion in a humid air turbine cycle for flexible power production from solid fuels with near‐zero emissions of CO 2 and other pollutants by Arnaiz del Pozo, Carlos, Cloete, Jan Hendrik, Cloete, Schalk, Jiménez Álvaro, Ángel, Amini, Shahriar

Get full text

Gas switching technology: Economic attractiveness for chemical looping applications and scale up experience to 50 kW(th) by Ugwu, Ambrose, Arnaiz del Pozo, Carlos, Zaabout, Abdelghafour, Nazir, Shareq Mohd, Kalendar, Nimet Uzun, Cloete, Schalk, Szima, Szabolcs, Fogarasi, Szabolcs, Donat, Felix, van Diest, Geert, Cloete, Jan Hendrik, Jimenez Alvaro, Angel, Albertsen, Knuth, Cormos, Ana-Maria, Cormos, Calin-Cristian, Amini, Shahriar

“…Gas switching technology (GST) was introduced to facilitate operation and scale-up of pressurized chemical looping-based technologies thus bringing the…”
Get full text