Blar i Institutt for prosess-, energi- og miljøteknologi på dokumenttype "Peer reviewed"
Viser treff 81-100 av 297
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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 ... -
Determination of onset of bubbling and slugging in a fluidized bed using a dual-plane electric capacitance tomography system
(Journal article; Peer reviewed, 2017)For a successful application of fluidized beds in chemical reactions and solids circulation, the boundary of regime of operation such as bubbling and slugging regimes, needs to be clearly defined. This study provides a ... -
Detonation propagation in stratified reactant layers
(Journal article; Peer reviewed, 2017)A numerical investigation of detonation propagation in stratified reactant layers is presented in this paper. It is baesed on the reactive Euler equations using a two step chemical kinetics approach. The numerical simulations ... -
Detoxifying CO2 Capture Reclaimer Waste by Anaerobic Digestion
(Journal article; Peer reviewed, 2013-10-13)The decrease in toxicity of carbon capture reclaimer monoethanolamine (MEA) waste (MEAw) during anaerobic degradation of such waste together with easily degradable organics was investigated. Samples were collected from a ... -
Development of normal pressure and frictional traction along the walls of a steep conical hopper during filling
(Journal article; Peer reviewed, 2011)A novel progressive filling approach was adopted in a numerical effort to represent the pilling process of particulate solids. It was implemented in a finite element analysis to investigate the development of loads along ... -
Diffusion of CO2 through polymer membranes
(Chapter; Peer reviewed, 2020)The food industry uses polymers as packaging to protect and maintain high quality and freshness of the product during distribution and storage. Polymers are permeable by gases like O2, CO2 and water vapour. In this paper, ... -
Distribution Of Co2 In Fractured Carbonate Reservoirs
(Journal article; Peer reviewed, 2017)Deep geologic injection of supercritical carbon dioxide (CO 2 ) for enhanced oil recovery (EOR) has been widely used for improved oil recovery from depleted oilfields since early 1970s. The CO 2 injec - tion maintains the ... -
Distribution of Solids in a Fluidized Bed Operated without a Gas Distributor
(Journal article; Peer reviewed, 2018)Despite several advantages of a gas distributor, there are also some challenges in its application. Using a gas distributor increases the fluidizing gas compression cost. Due to deposition of fine particles and product of ... -
Doctorateness across Higher Education Institutions in Norway
(Journal article; Peer reviewed, 2020)This article investigates doctorateness in Norway by evaluating the juridical regulations for doctoral studies at all PhD-awarding universities and university colleges according to the following categories: admission, ... -
Durability of selected membrane materials when exposed to chlorine gas
(Doctoral thesis; Peer reviewed, 2001)This thesis is focusing on the durability of selected membrane materials when exposed to chlorine gas in the temperature range 30-100°C. Studies of the changes of membrane separation properties and the mechanisms promoting ... -
Effect of Elevated Hydrogen Partial Pressure on Mixed Culture Homoacetogenesis
(Peer reviewed; Journal article, 2021)This study aimed to systematically investigate the effect of elevated hydrogen partial pressure on mixed culture homoacetogenesis in the range of 1–25 bar. Seven batch experiments were performed at different initial headspace ... -
The Effect of Impurities on γ-Alumina Chlorination in a Fluidized Bed Reactor: A CPFD Study
(Peer reviewed; Journal article, 2022)Alumina is one of the most widely used materials today, with a total annual production of millions of tonnes of highly pure alumina. A large portion of this is used to make metal aluminum. Apart from that, a growing amount ... -
Effect of Intermittent Aeration in a Hybrid Vertical Anaerobic Biofilm Reactor (HyVAB) for Reject Water Treatment
(Peer reviewed; Journal article, 2020)Water from anaerobic sludge dewatering (reject water that is recycled to the inlet main process treatment) from the Knarrdalstrand municipal wastewater treatment plant in Porsgrunn, Norway, contains 2.4 g/L of total chemical ... -
Effect of Mechanical Ventilation on Accidental Hydrogen Releases—Large-Scale Experiments
(Peer reviewed; Journal article, 2021)This paper presents a series of experiments on the effectiveness of existing mechanical ventilation systems during accidental hydrogen releases in confined spaces, such as underground garages. The purpose was to find the ... -
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 ... -
Effect of particle size on flow behavior in fluidized beds
(Peer reviewed; Journal article, 2019)The fluidization behaviour depends on particle properties such as particle size, sphericity, density and the properties of the fluidizing agent. In this study, the effects of different particle sizes on fluidization behaviour ... -
Effect of Particulate Disintegration on Biomethane Potential of Particle-Rich Substrates in Batch Anaerobic Reactor
(Peer reviewed; Journal article, 2019)An investigation of particle disintegration was carried out using batch anaerobic reactors and a particle-rich substrate from pig manure supernatant. Two types of samples were applied, one high in suspended particles (raw ... -
Effect of Superficial Gas Velocity on Bubbling Fluidized Bed Behaviour in a Biomass Gasifier
(Journal article; Peer reviewed, 2019)This study investigates the behaviour of bubbling fluidized beds in biomass gasification processes based on the variation of superficial gas velocity at different temperatures and air flowrates. In the paper, the operating ... -
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 ...