John Morud
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View article: Prospects of the Novel CSAR Concept for Fully Electric or Flexible Electric–Thermal Hybrid CO<sub>2</sub> Capture from CHP Plants
Prospects of the Novel CSAR Concept for Fully Electric or Flexible Electric–Thermal Hybrid CO<sub>2</sub> Capture from CHP Plants Open
Momentum is gatheringbehind the goal of achieving net-zero CO2 emissions by2050 in Europe and around the world. Negativeemissions via biomass or waste combustion with CO2 capturecan make net zero considerably easier to achieve. This study …
View article: Energy assessments of onboard CO2 capture from ship engines by MEA-based post combustion capture system with flue gas heat integration
Energy assessments of onboard CO2 capture from ship engines by MEA-based post combustion capture system with flue gas heat integration Open
An early phase feasibility study was carried out for offshore CO2 capture from ship engines of a CO2 transport ship. A flexible in-house process simulator was applied in the assessments. Parametric studies of the overall onboard process we…
View article: Numerical approach for generic three‐phase flow based on cut‐cell and ghost fluid methods
Numerical approach for generic three‐phase flow based on cut‐cell and ghost fluid methods Open
Summary In this paper, we introduce numerical methods that can simulate complex multiphase flows. The finite volume method, applying Cartesian cut‐cell is used in the computational domain, containing fluid and solid, to conserve mass and m…
View article: The effect of chordae tendineae on systolic flow
The effect of chordae tendineae on systolic flow Open
When using Computational Fluid Dynamics to simulate ventricular blood flow in the heart, it has been common practice to neglect the effect of the sub-valvular apparatus and the trabeculae on the flow conditions. In this study, we analyze t…
View article: 1D modelling of membrane-assisted chemical looping reforming
1D modelling of membrane-assisted chemical looping reforming Open
Membrane-assisted chemical looping reforming (MA-CLR) has been proposed as an alternative to the conventional CLR technology. In this work, a non-isothermal 1D model is used to simulate the MA-CLR fuel reactor. The effect of the resulting …
View article: COMPOSITE: A Concept for High Efficiency Power Production with Integrated CO2 Capture from Solid Fuels
COMPOSITE: A Concept for High Efficiency Power Production with Integrated CO2 Capture from Solid Fuels Open
The COMPOSITE concept combines packed bed chemical looping combustion (PBCLC) with chemical looping for oxygen production (CLOP) in an integrated gasification combined cycle for high efficiency power production. Detailed reactor modelling …
View article: A Novel Swing Adsorption Reactor Cluster (SARC) for Cost Effective Post-combustion CO2 Capture: A Thermodynamic Assessment
A Novel Swing Adsorption Reactor Cluster (SARC) for Cost Effective Post-combustion CO2 Capture: A Thermodynamic Assessment Open
The SARC consists of a number of standalone reactors where a solid sorbent is carbonated by a flue gas and regenerated by a combination of vacuum and temperature swing. Efficiency is maximized through heat integration between carbonation a…
View article: Simplified Model Description of a CLOP Reactor for System Simulation and Analysis
Simplified Model Description of a CLOP Reactor for System Simulation and Analysis Open
In order to perform overall system simulations and optimization at the flowsheet level, simplified models of process units are required. We present a simplified model of the CLOP reactor (chemical looping for oxygen production) and compare…
View article: Velocity profiles in a 2D model of the left ventricular outflow tract, pathological case study using PIV and CFD modeling
Velocity profiles in a 2D model of the left ventricular outflow tract, pathological case study using PIV and CFD modeling Open
In the current study, we present an experimental (in vitro) 2D flow model for studying blood flow in the human left ventricular outflow tract (LVOT) and the first part of the aorta using particle image velocimetry (PIV) and computational f…
View article: Simulation of gas-liquid flows in separators. A Lagrangian approach
Simulation of gas-liquid flows in separators. A Lagrangian approach Open
In order to simulate the separation efficiency of gas scrubbers, we have formulated and implemented a version of the Single-Particle Method. The method is suitable for CFD simulations of gas-droplet flows, and is based on using Lagrangian …
View article: A MULTI-DOMAIN 1D PARTICLE-REACTOR MODEL FOR PACKED BED REACTOR REACTOR APPLICATIONS
A MULTI-DOMAIN 1D PARTICLE-REACTOR MODEL FOR PACKED BED REACTOR REACTOR APPLICATIONS Open
A validated multi-domain 1D particle-reactor model has been developed to simulate packed bed reactor operation. Two main components of the model are: (1) a particle model for simulating the radial distribution of chemical species and tempe…