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norskInstitutt for automasjon og prosessteknologi
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Windtech Technology - Measuring Cold Exposure via Conjugate Heat Transfer
(Conference object; Konferansebidrag, 2020)Windtech technology is based on a novel patented technique of measuring cold exposure (UK Patent Office Application Number: 1914757.8, titled: Measuring cold exposure, dated: 11th October 2019). In this technology, the cold is measured via the response of an electrical heater exposed to environmental elements such as ambient temperature, wind, humidity, and irradiance. In this technology, the heater ... -
Computational Fluid Dynamics - A Steppingstone of MULTIPHYSICS
(Conference object; Konferansebidrag, 2021)The fluids have been around us for as far as we know and it enabled us to cross the oceans, ride the winds, shortens the distances, and much more. Computational Fluid Dynamics (CFD) has extended our understanding of fluids. Until today, the analytical solution of fundamental equations of fluid mechanics is a million-dollar award (referred to Clay Mathematics Institute). As engineers, let's leave ... -
Using Deep Learning Methods for Segmenting Polar Mesospheric Summer Echoes
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-31)Polar mesospheric summer echoes (PMSE) are radar echoes that are observed in the mesosphere during the arctic summer months in the polar regions. By studying PMSE, researchers can gain insights into physical and chemical processes that occur in the upper atmosphere—specifically, in the 80 to 90 km altitude range. In this paper, we employ fully convolutional networks such as UNET and UNET++ for ... -
Multiphysics Simulation of Particle-Surface Interaction and its Effect on Powder Patterns and Process Optimization
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-29)In industrial processes, powder coating is widely utilized to attain functional or aesthetic surface properties on manufactured parts. A Eulerian-Lagrangian Multiphysics solver has been developed within the OpenFOAM framework in order to simulate and optimize such processes with regards to coating efficiency and homogeneity. In the scope of this study, the powder particle-substrate and particle-particle ... -
Does the exponential Wells–Riley model provide a good fit for human coronavirus and rhinovirus? A comparison of four dose–response models based on human challenge data
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-15)The risk assessments during the COVID-19 pandemic were primarily based on dose–response models derived from the pooled datasets for infection of animals susceptible to SARS-CoV. Despite similarities, differences in susceptibility between animals and humans exist for respiratory viruses. The two most commonly used dose–response models for calculating the infection risk of respiratory viruses are the ... -
Guest Lecture on Thermography
(Conference object; Konferansebidrag, 2023-08-08) -
Multiphysics simulation of particle-surface interaction and its effect on powder patterns and process optimization
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-29)In industrial processes, powder coating is widely utilized to attain functional or aesthetic surface properties on manufactured parts. A Eulerian-Lagrangian Multiphysics solver has been developed within the OpenFOAM framework in order to simulate and optimize such processes with regards to coating efficiency and homogeneity. In the scope of this study, the powder particle-substrate and particle-particle ... -
Comparative Evaluation of Four RANS Turbulence Models for Aerosol Dispersion from a Cough
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-16)The study of aerosol dispersion in indoor environments is essential to understanding and mitigating airborne virus transmission, such as SARS-CoV-2. Computational Fluid Dynamics (CFD) has emerged as a valuable tool for investigating aerosol dispersion, providing an alternative to costly experimental methods. In this study, we investigated the performance of four (4) Reynolds-averaged Navier-Stokes ... -
Multiphysics Modelling of Powder Coating of U-Profiles: Towards Simulation-based Optimization of Key-Performance Attributes by Variation of Powder-Parameters
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-13)Multiphysics simulation software has been developed to predict the key performance attributes of industrial powder coating applications based on applied process-parameter settings. The software is a Eulerian-Lagrangian finite-volume Multiphysics solver based on OpenFOAM, capable of modelling mass transfer effects between powder-coating pistols and electrically grounded metallic substrates. It considers ... -
Statistical prediction and sensitivity analysis of kinetic rate constants for efficient thermal valorization of plastic waste into combustible oil and gases
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-06)Sensitivity analyses of rate constants for chemical kinetics of the pyrolysis reaction are essential for the efficient valorization of plastic waste into combustible liquids and gases. Finding the role of individual rate constants can provide important information on the process conditions, quality, and quantity of the pyrolysis products. The reaction temperature and time can also be reduced through ... -
Interactive teaching in an international preparatory language program; promoting some of the 21st century skills
(Conference object; Konferansebidrag, 2022-10)As the globalization has intensified, the future of engineering education may require its students to enhance the 21st century skills such as critical thinking, collaboration and communication skills (Riemer 2007, Gradin and Hirleman, 2009). In harmony with this, preparatory language programs for engineering studies must adopt educational methods that help students to cultivate such key skills. ... -
Supporting students to prepare for higher education studies: Enhancing English writing skills with formative peer assessment
(Conference object; Konferansebidrag, 2022-10)Studies report that writing skills of many beginner students in Norwegian higher education institutions are not adequately developed, showing a lack of critical thinking and referencing technique and a poor requisite language ability (Lødding and Aamodt 2015, Wollcheid et al. 2020). Literature also shows that a traditional lecture setting does not help students to enhance their learning autonomy ... -
Hvordan vi motiverer våre internasjonale ingeniørstudenter
(Conference object; Konferansebidrag, 2023) -
Developing formative peer assessment in writing classes: focus on students’ perceptions
(Conference object; Konferansebidrag, 2023-03)The literature of higher education has shown that formative peer assessment (FPA) promotes students’ learning across disciplines (Topping, 1998, Lynch et al. 2012, Li et al. 2019, among others). Despite the solid reported benefits, studies on an effective implementation of FPA are still limited in the literature (Nicol, Thomson, and Breslin 2014, Wanner and Palmer, 2018). A debilitating factor ... -
Havforskningsinstituttets rådgivning for menneskeskapt støy i havet - Kunnskapsgrunnlag, vurderinger og råd for 2023
(Research report; Forskningsrapport, 2023)Havforskningsinstituttet gir råd for alle operasjoner til havs som involverer bruk av lydkilder, samt elektromagnetiske kilder som kan påvirke marine økosystemer. Dette inkluderer vitenskapelige undersøkelser, utbygging og sprenging i sjø, seismiske og elektromagnetiske undersøkelser i forbindelse med petroleumsvirksomhet og utbygging og drift av vindkraftanlegg til havs. Denne rapporten er en ... -
Understanding Physical Properties of Fresh Water and Marine Ice using Multiphysics Modelling and Infrared Thermography
(Conference object; Konferansebidrag, 2023)Ice has unique physical properties, which tend to vary depending on how, where, and when it forms. In the presented work, we looked deeper into various physical properties of ice. In one of the studies, we focused on studying the ice adhesion on two types of polymers; polyurethane (PU) and polyvinyl-chloride (PVC). It revealed interesting behaviors with a viable potential for roads/highways coated ... -
Sensitivity Analysis of Thermal Degradation of Plastic Waste Using Statistically Assumed Exponential Factors and Activation Energies
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-04)The rise in the production of plastic waste has prompted the exploration of various recovery options instead of landfilling, burning, and other unethical ways of decomposing. The experimentally generated rate constants for the thermal processing of plastic waste do not yield enough liquid fuels and gases for commercial-scale usage. It is imperative to predict kinetic rate constants statistically ... -
Multiphysics Simulation of Particle-Surface Interaction and its Effect on Powder Patterns and Process Optimization
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-29)In industrial processes, powder coating is widely utilized to attain functional or aesthetic surface properties on manufactured parts. A Eulerian-Lagrangian Multiphysics solver has been developed within the OpenFOAM framework in order to simulate and optimize such processes with regards to coating efficiency and homogeneity. In the scope of this study, the powder particle-substrate and particle-particle ... -
Data Processing Scheme for Laser Spot Thermography Applied for Nondestructive Testing of Composite Laminates
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-08)This paper proposes a data processing scheme for laser spot thermography (LST) applied for nondestructive testing (NDT) of composite laminates. The LST involves recording multiple thermographic sequences, resulting in large amounts of data that have to be processed cumulatively to evaluate the diagnostic information. This paper demonstrates a new data processing scheme based on parameterization and ... -
Numerical sensitivity analysis of temperature-dependent reaction rate constants for optimized thermal conversion of high-density plastic waste into combustible fuels
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-22)The use of experimental rate constants for producing a high yield of liquid fuels from the pyrolysis of plastic waste is not widely accepted owing to a lack of compatibility between the different kinetic rate constants responsible for successful conversion reactions. In R software, the Arrhenius law can forecast the ideal combination of reaction rate constants and frequency factors and then perform ...
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