Browsing Institutt for prosess-, energi- og miljøteknologi by Subject "562"
Now showing items 1-20 of 27
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A comparative study between electrical capacitance tomography and time-resolved X-ray tomography
(Journal article; Peer reviewed, 2013)Modern day tomographs enable the research community to investigate the internal flow behaviour of a fluidized bed by non invasive methods that partially overcome the opaque nature of a dense bubbling bed. Each tomographic ... -
An experimental investigation of rapid boiling of CO2
(Journal article; Peer reviewed, 2014-09-27)Storage of pressurized liquified gases is a growing safety concern in many industries. Knowledge of the thermodynamics and kinetics involved in the rapid depressurization and evaporation of such substances is key to the ... -
An experimental study of temperatures in cloud from release of flashing liquid CO2 in 3m long channel.
(Journal article; Peer reviewed, 2014)Flashing of the liquid CO2 is an accidental hazards that may occurs in many industrial sector such as, process industries, carbon capture and storage projects, crude oil extraction process etc. Sometimes the accidental ... -
An Optimization Framework for Tracking Droplets in Fire Water Spray Images
(Conference object; Peer reviewed, 2015-11-25)The properties of the flow from fire water nozzles, like droplet size and velocity distribution within the spray, are known to influence the fire suppression efficiency. To analyze the flow properties, the water spray is ... -
Anaerobic expanded granular sludge bed (EGSB) reactor for the removal of sulphide by autotrophic denitrification.
(Journal article; Peer reviewed, 2014)The Removal efficiency, load and N/S molar ratio, of an EGSB reactor for autotrophic sulphide denitrification operated for 96 days, were studied. The reactor was operated at high inlet sulphide concentrations between 0.25 ... -
Aspen Plus Simulation of Biomass Gasification with known Reaction Kinetic
(Conference object; Peer reviewed, 2015-11-25)The energy from biomass can be utilized through the thermochemical conversion processes of pyrolysis and gasification. The Aspen Plus simulation tool is applicable for simulation of the gasification processes. The most ... -
Assessment of mercury emission at Norcem's cement kiln by use of 203 Hg tracer
(Conference report, 2005)In manufacture of cement clinker, mercury (Hg) is introduced in the cement kiln system via the fuels and as constituents in the raw materials, i.e. limestone, iron ore, etc. The permissible emission of Hg to air is very ... -
Assessment of sulphur emission at Norcem's cement kiln by use of 35S-tracer
(Conference report, 2001)Although sulphur is not a major reacting species in making cement clinker, it is introduced as a pollutant in both the energy carrier (oil, coke, coal, household waste) and in the reactants (chalk, silica). Due to the ... -
Burning chamber installation for increased use of alternative fuels at Norcem Brevik, Norway
(Conference report, 2006) -
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 ... -
Energy recovery from wastes : experience with solid alternative fuels combustion in a precalciner cement kiln
(Conference report, 2001)Today virtually all cement clinker burning processes take place in rotary kilns. A mixture of calcareous and argilaceous materials is heated to a temperature of about 1450 °C. In this process decarbonation followed by ... -
Eulerian-Eulerian simulation of heat transfer between a gas-solid fluidized bed and an immersed tube-bank with horizontal tubes
(Journal article; Peer reviewed, 2011-04-15)A two dimensional Eulerian-Eulerian simulation of tube-to-bed heat transfer is carried out for a cold gas fluidized bed with immersed horizontal tubes. The horizontal tubes are modelled as obstacles with square cross section ... -
Gasification of Biomass for Production of Syngas for Biofuel
(Journal article; Peer reviewed, 2015)Continuously increasing price of oil and gas, energy crisis and increased environmental consciousness towards the greenhouse gas emission have opened a new opportunity to the biomass, the oldest source of energy known to ... -
Impact of kiln thermal energy demand and false air on cement kiln flue gas CO2 capture
(Journal article; Peer reviewed, 2014)The present study is focused on the effect of the specific thermal energy demand and the false air factor on carbon capture applied to cement kiln exhaust gases. The carbon capture process model was developed and implemented ... -
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 ... -
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 ... -
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 ... -
Modeling and simulation of lab-scale anaerobic co-digestion of MEA waste
(Journal article; Peer reviewed, 2014)Anaerobic digestion model No.1 (ADM1) was applied and expanded in this study to model and simulate anaerobic digestion (AD) of an industrial carbon capture reclaimer MEA (monoethanolamine) waste (MEAw) together with easily ... -
Nosé-Hoover simulations of aqueous mixtures of small alcohols
(Doctoral thesis; Peer reviewed, 1996)We have performed constant energy and constant temperature equilibrium molecular dynamics simulations of model liquids of water, methanol, and ethanol, and of the binary aqueous mixtures of the alcohols at mole fractions ... -
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 ...