Browsing Institutt for elektro, IT, og kybernetikk by Title
Now showing items 9-28 of 290
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Acoustic chemometric prediction of total solids in bioslurry: A full-scale feasibility study for on-line biogas process monitoring
(Journal article; Peer reviewed, 2012)Dry matter is an important process control parameter in the bioconversion application field. Acoustic chemometrics, as a Process Analytical Technology (PAT) modality for quantitative characterisation of dry matter in complex ... -
Acoustic chemometrics for material composition quantification in pneumatic conveying - The critical role of representative reference sampling
(Journal article; Peer reviewed, 2012)Reliable monitoring of pneumatically conveyed particulate materials is critical for online detection and controlling material composition changes in the regimen of Process Analytical Technology (PAT), e.g. as the case ... -
Acoustic chemometrics for on-line monitoring and end-point determination of fluidised bed drying
(Journal article; Peer reviewed, 2013-07-02)An emerging process analytical technology (PAT) technique, acoustic chemometrics, was applied for monitoring of heated fluidised bed drying process. The feasibility of quantitative on-line monitoring of the drying progress ... -
Adapting dynamic mathematical models to a pilot anaerobic digestion reactor
(Journal article; Peer reviewed, 2013)A dynamic model has been adapted to a pilot anaerobic reactor fed diarymanure. Both steady-state data from online sensors and laboratory analysis anddynamic operational data from online sensors are used in the model ... -
Algorithm with improved accuracy for real-time measurement of flow rate in open channel systems
(Journal article; Peer reviewed, 2017)Most methods for flow rate measurement in open channels usually have low accuracy over a range of flow rates due to varying fluid properties, flow conditions and channel length. This paper suggests an algorithm to improve ... -
Alumina scale composition and growth rate in distribution pipes
(Peer reviewed; Journal article, 2019)Scaling in distribution pipes for secondary alumina is a major issue in aluminium smelters. The scale is formed inside the distribution pipes, and gradually reduces the cross section that is available for alumina transport. ... -
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 ... -
Analysing uncertainty in parameter estimation and prediction for grey-box building thermal behaviour models
(Peer reviewed; Journal article, 2020)The potential reduction in energy consumption for space heating in buildings realised by the use of predictive control systems directly depends on the prediction accuracy of the building thermal behaviour model. Hence, ... -
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 ... -
Applying Design of Experiments Method for the Verification of a Hydropower System
(Chapter, 2022)Today, renewable energy plays a major role in the transition towards environment-friendly energy sources. Hydropower is one of the most important renewable energy sources leading to the high interest of research associated ... -
An approximate well-balanced upgrade of Godunov-type schemes for the isothermal Euler equations and the drift flux model with laminar friction and gravitation
(Peer reviewed; Journal article, 2020)In this article, approximate well-balanced (WB) finite-volume schemes are developed for the isothermal Euler equations and the drift flux model (DFM), widely used for the simulation of single- and two-phase flows. The ... -
Assessment of Under-Frequency Load Shedding in Mongolia Considering Inertia Scenarios
(Chapter, 2020)The Mongolian power system (MPS) has been changing in recent years mainly by the integration of wind power and solar photovoltaic sources which until 2019 has been reached a 20% of the total generation sources. The ... -
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 ... -
A Bayesian Model to Forecast the Time Series Kinetic Energy Data for a Power System
(Journal article; Peer reviewed, 2021)With the massive penetration of electronic power converter (EPC)-based technologies, numerous issues are being noticed in the modern power system that may directly affect system dynamics and operational security. The ... -
A BLUP derivation of the multivariate breeder’s equation, with an elucidation of errors in BLUP variance estimates, and a prediction method for inbred populations
(Peer reviewed; Journal article, 2022)The multivariate breeder's equation, Lande (1979), was derived from the Price equation Price (1970,1972). Here, I present a derivation based on the BLUP (best linear unbiased predictions) equations in matrix form, first ... -
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 ... -
Challenges in the penetration of electric vehicles in developing countries with a focus on Nepal
(Peer reviewed; Journal article, 2021)With growing concerns of climate change and unreliable fuel market, the world is moving towards an electric-based transportation system, one that entails a country to overhaul major infrastructures, establish high monetary ... -
Co-operative sensor fusion using time warping in multimodal tomometry for process con
(Conference object; Peer reviewed, 2012)Recent studies in process tomography have mostly focused on image processing and enhancement of images obtained from Electrical Capacitance, Electrical Resistance, Electrical Impedance, Gamma- and X-ray- tomographic ... -
Co-simulation-based optimal reactive power control in smart distribution network
(Peer reviewed; Journal article, 2023)The increasing integration of distributed energy resources such as photovoltaic (PV) systems into distribution networks introduces intermittent and variable power, leading to high voltage fluctuations. High PV integration ...