Browsing Institutt for prosess-, energi- og miljøteknologi by Issue Date
Now showing items 21-40 of 332
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Modeling an image analysis of FAE
(Conference lecture, 2008-09) -
Simulation of FA and DDT in a channel with repeated obstacles with an under-resolved mesh
(Conference object; Peer reviewed, 2009) -
Velocity and turbulence measurements of oil-water flow in horizontal and slightly inclined pipes using PIV
(Chapter; Peer reviewed, 2009)Oil-water flows in horizontal and slightly inclined pipes are investigated using Particle Image Velocimetry (PIV). PIV offers a powerful non-invasive tool to study such flow fields. The experiments are conducted in a 15 m ... -
Solving random walk recursions in the plane using separation of variables and Fourier analysis
(Professional article, 2009-04-21)The aim of this article is first of all to show how to solve a two-dimensional random walk problem on an arbitrary rectangle with certain boundary conditions, using separation of variables and discrete Fourier analysis. ... -
Experiments with flame propagation in a channel with one obstacle and premixed H2-air
(Conference object; Peer reviewed, 2009-07)This abstract presents experimental results of flame propagation in a square channel with a single obstacle. The background for the experimental study was to investigate how a flame propagated when and after the flame ... -
Experimental Study of the Initial Flame Propagation of Premixed H2-air Explosion in a Channel
(Conference object; Peer reviewed, 2009-07)This paper presents results from experiments on flame propagation in inhomogeneous and homogeneous hydrogen-air mixtures at 1 atm in a channel. The objective of the present work is to study the ininitial phase of the flame ... -
Pressure drop, flow pattern and local water volume fraction measurements of oil-water flow in pipes
(Journal article; Peer reviewed, 2009-11)Oil-water flow in horizontal and slightly inclined pipes was investigated. The experimental activities were performed using the multiphase flow loop at Telemark University College, Porsgrunn, Norway. The two-fluid model ... -
Oxygen Effects in Anaerobic Digestion II
(Journal article, 2010)Standard models describing bio-gasification using anaerobic digestion do not include necessary processes to describe digester dynamics under the conditions of oxygen presence. Limited oxygenation in anaerobic digestion can ... -
Investigation of the shifting-parameter as a function of particle size distribution in a fluidized bed traversing from a fixed to fluidized bed
(Conference object; Peer reviewed, 2010)The particles in a biomass gasifier are mainly a mixture of wood chips, char particles and bed material. The charwood particles have a significant lower density than the bed material, and also a wider range of particle ... -
Investigation of the shifting-parameter as a function of density in the fluidization of a packed bed
(Conference report, 2010)Accurate predictions of pressure drops in fluidized beds are of great importance in the industry. Up to date no satisfactory correlation exists to predict the pressure drop in a fluidized bed as the bed is traversing from ... -
Oxygen effects in anaerobic digestion - a review
(Journal article; Peer reviewed, 2011)This article reviews the experimental and theoretical studies conducted on the possible effects of oxygen in biogas generating anaerobic digesters. The interactions of oxygen with various biochemical processes associated ... -
Hva koster egentlig CO2-håndtering?
(Journal article; Peer reviewed, 2011) -
Composite Distribution Solution for Minimizing Heat Loss in a Pyrolysis Reactor
(Journal article; Peer reviewed, 2011)The article presents a novel design for a distribution plate. The solution is suitable for a reactor vessel where a reactant gas needs to be maintained at a different temperature from the reaction chamber in order to avoid ... -
Fra fagbrev til ingeniør - et didaktisk perspektiv
(Journal article; Peer reviewed, 2011)Veien fra fagbrev eller annen yrkesutdanning til høgere utdanning har vært et tema i den norske skoledebatten i mange år, og er igjen blitt aktuell. Land som Finland, Tyskland og Japan har etablerte systemer for høgere ... -
Process parameters affecting the sustainability of fermentative hydrogen production: A short review
(Journal article; Peer reviewed, 2011)Anaerobic fermentation is regarded as the least energy intensive method for H2 production. Extensive literature on experimental attempts to achieve the highest possible theoretical yield (e.g. 4 mol H2/mol glucose) is ... -
Men's artistic gymnastics: a new high bar-gymnast model with sensitivity analysis
(Journal article; Peer reviewed, 2011)The purpose of this work1 was to develop a new 2D gymnast - high bar model with horizontal bar endpoint dynamics included. To this end, a three-spring high bar model was extended with a 5 segment gymnast model followed by ... -
Investigation of flow behaviour in biomass gasifier using Electrical capacitance Tomography (ECT) and pressure sensors
(Conference object; Peer reviewed, 2011)The particles in a biomass gasifier are mainly a mixture of wood chips, char particles and bed material. The charwood particles have a significant lower density than the bed material, and also a wider range of particle ... -
Effect of Tonsillar Herniation on Cyclic CSF Flow Studied with Computational Flow Analysis
(Journal article; Peer reviewed, 2011)BACKGROUND AND PURPOSE: The Chiari I malformation, characterized by tonsils extending below the foramen magnum, has increased CSF velocities compared with those in healthy subjects. Measuring the effect of tonsillar ... -
Biological treatment of amine wastes generated in post combustion CO2 capture
(Journal article; Peer reviewed, 2011)The wastes generation by amine degradation is an important issue to be addressed when considering CCS schemes. Biological treatment of amine wastes can be a strategy with reasonable economy and environmental sustainability. ... -
Effect of operating conditions and particle properties on performance of vertical air-lift
(Journal article; Peer reviewed, 2011)The effect of the fluidization air flow rate and the transport air velocity on the solids mass flow rate and the pressure drop along the transport pipe was investigated in a vertical air-lift. The use of two different ...