Browsing Institutt for prosess-, energi- og miljøteknologi by Title
Now showing items 75-94 of 332
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Computing Ischemic Regions in the Heart: On the Use of Internal Electrodes
(Conference object; Peer reviewed, 2013-09)In order to better locate ischemic regions in the heart using electrical measurements and inverse solutions, we explore the possibility for supplementing BSPM data sets with additional internal electrodes in the esophagus. ... -
Confined granular flow in silos with inserts - Full-scale experiments
(Journal article; Peer reviewed, 2012)The paper describes results of experimental investigations of confined granular flow in a silo with different inserts. Over 100 experiments were carried out with dry cohesionless sand in a large metal silo with and without ... -
Cost and Emissions Reduction in CO2 Capture Plant Dependent on Heat Exchanger Type and Different Process Configurations: Optimum Temperature Approach Analysis
(Peer reviewed; Journal article, 2022)The performance of a plate heat exchanger (PHE), in comparison with the conventional shell and tube types, through a trade-off analysis of energy cost and capital cost resulting from different temperature approaches in the ... -
CPFD model for prediction of flow behavior in an agglomerated fluidized bed gasifier
(Peer reviewed; Journal article, 2019)Renewable energy sources have significant potential for limiting climate change and reducing greenhouse gas emissions due to the increased global energy demand. Fluidized bed gasification of biomass is a substantial ... -
A CPFD model to investigate the influence of feeding positions in a gasification reactor
(Journal article; Peer reviewed, 2020)The efficiency of a gasification process is directly related to the rate of biomass conversion into product gas. The rate of fuel conversion depends on the interaction of fuel with the bed material, the gasifying agent, ... -
CPFD Modeling to study the Hydrodynamics of an Industrial Fluidized Bed Reactor for Alumina Chlorination
(Journal article; Peer reviewed, 2022)Aluminum is one of the most used metals. Since aluminum has a unique combination of appealing properties and effects, it allows significant energy savings in many applications, such as vehicles and buildings. Although this ... -
CPFD simulation of a fixed bed gasification reactor
(Chapter; Peer reviewed, 2020)Biomass gasification is regarded as one of the most promising energy recovery technologies. The gases produced from the biomass gasification can be used for heat and power production. Alternatively, they can be used for ... -
CPFD simulation of an electrically heated fluidized bed calciner with binary particles
(Peer reviewed; Journal article, 2023)Electrifying a calciner with clean energy can cut fuel emissions and produce a stream of relatively pure CO2 from the calcination reaction (CaCO3 → CaO + CO2), which can be utilized or stored. A fluidized bed calciner ... -
CPFD simulation of enhanced cement raw meal fluidization through mixing with coarse, inert particles
(Journal article, 2020)In the current work, computational particle and fluid dynamics (CPFD) simulations are used to study an electrically heated bubbling fluidized bed (BFB) used as a calciner in a cement manufacturing process, applying a ... -
CPFD Simulations on a Chlorination Fluidized Bed Reactor for Aluminum Production: An Optimization Study
(Journal article; Peer reviewed, 2022)Early CPFD simulation studies on designing a fluidized bed reactor for alumina chlorination showed that the model suffers from high particle outflow and dense phase bed channeling. The present study is aimed to optimize ... -
Demonstration of CO2 Capture Process Monitoring and Solvent Degradation Detection by Chemometrics at the Technology Centre Mongstad CO2 Capture Plant
(Peer reviewed; Journal article, 2023)Solvent management is one of the important current challenges in post combustion carbon capture (PCC) technology development. Using large-scale 1960 h test campaign data (Technology Centre Mongstad, Norway, 2015 MEA Test), ... -
Density and Viscosity Correlations for Aqueous 3-Amino-1-propanol and Monoethanol Amine Mixtures
(Journal article; Peer reviewed, 2019)Density and viscosity data and relevant correlations are essentially needed to perform mathematical modelling and simulations for the design of process equipment. Correlations that are developed to cover a range of ... -
Density, viscosity and free energy of activation for viscous flow of CO2 loaded 2-amino-2-methyl-1-propanol (AMP), monoethanol amine (MEA) and H2O mixtures
(Peer reviewed; Journal article, 2020)This work presents an experimental study of densities and viscosities of aqueous AMP (2-amino-2-methyl-1-propanol) + MEA (monoethanol amine) + H2O solutions with and without CO2. Amine concentrations were at AMP to MEA ... -
Density, viscosity and free energy of activation for viscous flow of monoethanol amine (1) + H2O (2) + CO2 (3) mixtures.
(Peer reviewed; Journal article, 2020)Densities and viscosities of aqueous monoethanol amine (MEA) and CO2-loaded aqueous MEA are highly relevant in engineering calculations to perform process design and simulations. Density and viscosity of the aqueous MEA ... -
Density, Viscosity, and Excess Properties of MDEA + H2O, DMEA + H2O, and DEEA + H2O Mixtures
(Peer reviewed; Journal article, 2020)This study presents measured density and viscosity of N-methyldiethanolamine (MDEA) + H2O, Dimethylethanolamine (DMEA) + H2O, and Diethylethanolamine (DEEA) + H2O mixtures. The density was measured at amine mass fraction ... -
Design of a Medium-Scale Circulating Fluidized Bed Reactor for Chlorination of Processed Aluminum Oxide
(Journal article; Peer reviewed, 2022)Fluidization is a well-established and widely used technology in the process industry. The production stability and the large effective contact area between the active substances, resulting in high mass and heat transfer ... -
Detailed One-Dimensional Model for Steam-Biomass Gasification in a Bubbling Fluidized Bed
(Peer reviewed; Journal article, 2019)A one-dimensional unsteady state model is developed for simulation of biomass gasification in a bubbling fluidized bed. The proposed model accounts for the effect of hydrodynamic behavior of the fluidized bed by incorporating ... -
Detection of Candidatus Neoehrlichia mikurensis in Norway up to the northern limit of Ixodes ricinus distribution using a novel real time PCR test targeting the groEL gene
(Journal article; Peer reviewed, 2019)Background Candidatus Neoehrlichia mikurensis is an emerging tick-borne pathogen. It is widely distributed in Ixodes ricinus ticks in Europe, but knowledge of its distribution in Norway, where I. ricinus reaches its ... -
Determination of biomass fraction for partly renewable solid fuels.
(Journal article; Peer reviewed, 2014-04-29)Biomass-based waste fuels are used in many industrial applications since combustion of biomass gives no net emissions of carbon dioxide. Some waste fuels, e.g. RDF (refuse derived fuels), contain not only biomass, but also ... -
Determination of fossil fraction of refuse derived fuel by the selective dissolution method in calorific value basis: Development of simplified method.
(Journal article; Peer reviewed, 2012)Determination of net CO2 emissions from combustion of Refuse Derived Fuel (RDF) is not straight forward due to the heterogeneous nature of the fuel. The fossil fraction of the fuel is an essential parameter for the ...