Browsing Institutt for elektro, IT, og kybernetikk by Title
Now showing items 1-20 of 299
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3-way PLS regression and dual energy gamma densitometry for prediction of total volume fractions and enhanced flow regime identification in multiphase flow
(Journal article; Peer reviewed, 2014-12)Dual energy gamma densitometry and 3-way partial least squares regression were applied to quantify the total volume fractions and improve flow regime identification in multiphase flow. Multiphase flow experiments were ... -
A didactically motivated PLS prediction algorithm
(Journal article; Peer reviewed, 2001)The intention of this paper is to develop an easily understood PLS prediction algorithm, especially for the control community. The algorithm is based on an explicit latent variables model, and is otherwise a combination ... -
A Novel Process-Reaction Curve Method for Tuning PID Controllers
(Journal article; Peer reviewed, 2018)A novel process-reaction curve method for tuning PID controllers for (possible) higher order processes/models is presented. The proposed method is similar to the Ziegler-Nichols process reaction curve method, viz. only the ... -
A review of Smart House Analysis Methods for Assisting Older People Living Alone
(Journal article; Peer reviewed, 2017) -
A Semi-Heuristic Process-Reaction Curve PID Controller Tuning Method
(Journal article; Peer reviewed, 2018)A simple semi-heuristic method for designing PID controllers for time constant models are shown to be close to optimal. A Process-Reaction Curve method is proposed, composed by a method for approximating stable time constant ... -
A Sensor Fusion Algorithm for Filtering Pyrometer Measurement Noise in the Czochralski Crystallization Process
(Journal article; Peer reviewed, 2011)The Czochralski (CZ) crystallization process is used to produce monocrystalline silicon for solar cell wafers and electronics. Tight temperature control of the molten silicon is most important for achieving high crystal ... -
A Simultaneous and Continuous Excitation Method for High-Speed Electrical Impedance Tomography with Reduced Transients and Noise Sensitivity.
(Journal article; Peer reviewed, 2018)This paper presents a concept for soft field tomographic scan of all the projections of electromagnetic waves emanating from an array of electrodes. Instead of the sequential excitation of all pairs of electrodes in the ... -
A solution method for one-dimensional shallow water equations using flux limiter centered scheme for open Venturi channels
(Journal article; Peer reviewed, 2018)The one-dimensional shallow water equations were modified for a Venturi contraction and expansion in a rectangular open channel to achieve more accurate results than with the conventional one-dimensional shallow water ... -
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 ... -
Agent-Based and Stochastic Optimization Incorporated with Machine Learning for Simulation of Postcombustion CO2 Capture Process
(Journal article, 2022)In this paper, a novel method is proposed for the incorporation of data-driven machine learning techniques into process optimization. Such integration improves the computational time required for calculations during ... -
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 ...