Blar i 1 USN ansatte på tidsskrift "Linköping Electronic Conference Proceedings"
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A Study of the Effect of Relative Permeability and Residual Oil Saturation on Oil Recovery
(Journal article; Peer reviewed, 2015-11-25)The depletion of oil production and the low recovery rate are the major challenges faced in oil production. Several studies have shown that considerable amount of oil still remains in the reservoir after the well shutdown. ... -
Anaerobic Digestion of Aqueous Pyrolysis Liquid in ADM1
(Peer reviewed; Journal article, 2021)Aqueous pyrolysis liquid (APL) is formed from pyrolysis of lignocellulosic biomass and is considered as a possible feed for anaerobic digestion (AD). APL is known to contain many components that can have a negative impact ... -
Anaerobic Digestion of Hemicellulosic Sugars Implemented in ADM1
(Peer reviewed; Journal article, 2020)Lignocellulosic biomass is a sustainable and renewable source for both solids like biochar and biomethane by anaerobic digestion (AD). Hot water extraction (HWE) improves the total utilization of the biomass and produces ... -
Analysing the stability of an islanded hydro-electric power system
(Journal article; Peer reviewed, 2018)Power system simulation is a large arena especially in connection with the large European power system. The challenges of large interconnected electrical power systems call for a sophisticated system modelling solution ... -
Analysis and Effect of Simulation parameters of CPFD Simulation in Fluidized Beds
(Journal article; Peer reviewed, 2018)Fluidized bed technology is broadly applied in industry due to its distinct advantages. CFD simulation of fluidized beds is still challenging compared to single-phase systems and needs extensive validation. Multiphase ... -
Analysis of the effect of steam-to-biomass ratio in fluidized bed gasification with multiphase particle-in-cell CFD Simulation
(Journal article; Peer reviewed, 2017)Biomass has been identified as a key renewable energy source to cope with upcoming environmental challenges. Gasification of biomass is becoming interested in large scale operation, especially in synthesis of liquid fuels. ... -
Analyzing the Effects of Geometrical and Particle Size Uncertainty in Circulating Fluidized Beds using CPFD Simulation
(Journal article; Peer reviewed, 2019)Computational fluid dynamic modeling and simulation is becoming a useful tool in the detailed analysis of multiphase flow systems. The level of uncertainty is different depending on selected modeling concept and numerical ... -
Analyzing the effects of particle density, size, size distribution and shape for minimum fluidization velocity with Eulerian-Lagrangian CFD simulation
(Journal article; Peer reviewed, 2017)Fluidized bed reactor systems are widely used due to excellent heat and mass transfer characteristics followed by uniform temperature distribution throughout the reactor volume. The importance of fluidized beds is further ... -
Applicability of NRTL Model for Prediction of the Viscosity of Alkanolamine + Water Mixtures
(Journal article; Peer reviewed, 2019)This study discusses the applicability of the non-random two-liquid (NRTL) model to represent viscosity for MEA (monoethanol amine) + H2O and AMP (2-amino-2-methyl-1-propanol) + MEA (monoethanol amine) + H2O mixtures under ... -
Application of Autonomous Inflow Control Valve for Enhanced Bitumen Recovery by Steam Assisted Gravity Drainage
(Peer reviewed; Journal article, 2022)Steam assisted gravity drainage is a thermal method for enhanced bitumen recovery. In this method, steam is injected to bitumen and heavy oil to reduce the viscosity and make the oil mobile. However, early breakthrough of ... -
Aspen Plus simulation of biomass gasification for different types of biomass
(Journal article; Peer reviewed, 2019)A steady-state Aspen Plus model was developed for biomass gasification in a fluidized bed reactor. A combination of different Aspen Plus unit operations was used to model the gasification process. The model was used to ... -
Averaging level control for urban drainage system
(Peer reviewed; Journal article, 2021)In the work, averaging level control using model-based control and estimation algorithm on a buffer tank system is studied. Implementation of Model Predictive Control (MPC) and Proportional-Integral (PI) control together ... -
CFD Simulation of Solidification of non-Newtonian Fluid Flowing in a Complex Geometry Pipeline in Turbulent Flow Regime
(Journal article; Peer reviewed, 2018)In this CFD (Computational Fluid Dynamics) study, the turbulent flow of a non-Newtonian fluid through an industrial scale transportation pipeline is modelled in Ansys Fluent®, with a focus on the fluid solidification due ... -
CFD Study of Particle Flow Patterns in a Rotating Cylinder Applying OpenFOAM and Fluent
(Journal article; Peer reviewed, 2017)A rotating cylinder (RC) is a common type of reactor used in the industry, the most typical example being a cement kiln. The particle flow pattern inside such a unit is necessary for the mass and energy transfer, and this ... -
Chemical equilibrium model to investigate scaling in moving bed biofilm reactors (MBBR)
(Peer reviewed; Journal article, 2019)Moving bed biofilm reactor (MBBR) is a robust, flexible and compact technology for treatment of medium to high strength wastewater. However, while treating with high concentration of ammonium, phosphorus and metal ions, ... -
Comparison of control strategies for a 2 DOF helicopter
(Journal article; Peer reviewed, 2017)The two degrees of freedom (2-DOF) helicopter is an openloop unstable multi-variable process. Various control strategies can be applied to stabilize the system for tracking and regulation problems but not all control methods ... -
Comparison of different state estimator algorithms applied to a simulated anaerobic digestion reactor
(Journal article; Peer reviewed, 2018)This study deals with a simulator-based comparison of different state estimators of an anaerobic digestion process. A simulated biogas reactor based on the AM2 model is considered. Extended Kalman Filter, Unscented Kalman ... -
Comparison of elastic vs. inelastic penstock model using OpenModelica
(Journal article; Peer reviewed, 2017)The possibility for modelling and simulating hydropower systems as accurately as possible take an important role in order to develop a control structure and to make efficient analysis tools for testing a designed controller ... -
Comparison of experimental and computational study of the fluid dynamics in fluidized beds with agglomerates
(Peer reviewed; Journal article, 2020)Particle agglomeration is one of the obstacles for successful application and commercial breakthrough of fluidized bed biomass gasification. The problem is generally associated with molten ash components that interact with ... -
Comparison of Linear Controllers for Nonlinear, Open-loop Unstable Reactor
(Journal article; Peer reviewed, 2018)Many industrially important reactors are operated over a regime where they exhibit nonlinear behavior. Exothermal reactors are often open-loop unstable. For such reactors, safe operation with good performance requires good ...