Institutt for prosess-, energi- og miljøteknologi: Recent submissions
Now showing items 241-260 of 338
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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 ... -
Simulation of CO2-Distribution in Fractured Oil Reservoir
(Conference object; Peer reviewed, 2015-11-25)Deep geologic injections and storage of Carbon dioxide (CO2) for enhanced oil recovery (EOR) are an upcoming combination due to the potential for increased oil production from depleted oilfields at the same time reducing ... -
Modeling of the Energy Consumption within the Framework of the Energy Efficiency Management
(Conference object; Peer reviewed, 2015-11-25)Insufficient level of the energy efficiency in Ukraine requires an immediate reformation of the Ukrainian power sector in order to stimulate power enterprises and final consumers to decreasing of fossil fuel and power ... -
Process Simulation of Calcium Looping With Indirect Calciner Heat Transfer
(Conference object; Peer reviewed, 2015-11-25)In calcium looping (CL), calcium oxide (CaO) is used as a sorbent for carbon dioxide (CO2). The CO2 reacts with CaO to produce calcium carbonate (CaCO3) in a carbonator operating at about 650 °C. The CaCO3 is then sent to ... -
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 ... -
Near Well Simulation of Extra-Heavy Oil Production Using SAGD
(Conference object; Peer reviewed, 2015-11-25)Heavy oil and bitumen represent a massive world resource more than twice the size of global reserves of light or conventional oil. In reservoirs with extra heavy oil and bitumen, thermal methods are used to reduce the oil ... -
Near Well Simulation and Modelling of Oil Production From Heavy Oil Reservoirs
(Conference object; Peer reviewed, 2015-11-25)Heavy oil reservoirs cover up two third of the world's hydrocarbon reservoirs. Even though it is vast energy resource, heavy oil recovery is not considered economical due to its high viscous properties. Generally horizontal ... -
Near Well CFD Simulation of SAGD Extra Heavy Oil Production
(Journal article; Peer reviewed, 2015-11-25)Near well computational fluid dynamic simulation for extra heavy oil production using steam assisted gravity drainage was studied with ANSYS Fluent software. Computational fluid dynamic simulation can predict the multiphase ... -
Thermal Design of Future Medium Voltage Switchgear
(Conference object; Peer reviewed, 2015)Air is a desirable alternative to SF6 in medium voltage (MV) switchgear. However, the thermal properties of air is poorer compared with SF6, and this paper presents a first step in the process of finding an optimized thermal ... -
Computational Study of Heavy Oil Production with Inflow Control Devices
(Journal article; Peer reviewed, 2015-11-25)Recovery of heavy oil is associated with challenges in terms of early water or gas breakthrough caused by the fingering phenomenon. This study is related to Californian heavy oil production and includes 2D simulations of ... -
Heat Pump Efficiencies simulated in Aspen HYSYS and Aspen Plus
(Journal article; Peer reviewed, 2015-11-25)Heat pump technology provides an efficient and sustainable solution for both heating and cooling. A traditional heat pump can be defined as a mechanical-compression cycle refrigeration system powered by electricity. ... -
Nearwell Simulation of a horizontal well in Atlanta Field in Brazil with AICV® completion using OLGA/Rocx
(Journal article; Peer reviewed, 2015-11-25)Brazil has special attention in the world oil scenario due its recent findings of oil reservoirs. Most of these reservoirs are heavy oil. The increasing energy consumption and discovery of heavy oil reservoirs require more ... -
A Study of the Effect of Relative Permeability and Residual Oil Saturation on Oil Recovery
(Journal article; Peer reviewed, 2015-11-25)The depletion of oil production and the low recovery rate are the major challenges faced in oil production. Several studies have shown that considerable amount of oil still remains in the reservoir after the well shutdown. ... -
Simulation of improved absorption configurations for CO2 capture
(Conference object; Peer reviewed, 2015-11-25)The most well-known technology for post combustion CO2 capture from exhaust gas is absorption in an amine-based solvent followed by desorption. The drawback of this method is the high heat consumption required for desorption. ... -
Temperature Effects in Anaerobic Digestion Modeling
(Conference object; Peer reviewed, 2015-11-25)Temperature effects on kinetic coefficients for the biochemical processes particle disintegration, hydrolysis and substrate uptake reactions were included in the anaerobic digestion model 1 (ADM1). It was evaluated on data ... -
Near Well Simulation of CO2 Injection for Enhanced Oil Recovery (EOR)
(Journal article; Peer reviewed, 2015-11-25)A major challenge in oil industry is the declining oil production and the relatively low recovery rate. Estimates show that although the oil is localized and mobile, more than half of the oil is remaining in the reservoir ... -
Simulation of Simplified Model for Reaction Kinetics in Biomass Gasification
(Conference object; Peer reviewed, 2015-11-25)Due to complexity in interactions between solid particles and between particles and carrier fluid, modeling of biomass gasification kinetics has been shown to be very challenging. Some commercial packages such as Barracuda ... -
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 ... -
Simulation of Transcritical Flow in Hydraulic Structures
(Journal article; Peer reviewed, 2015-11-25)In hydraulic engineering, transcritical flows are often required in some applications. One example is in a Venturi channel where the occurrence of critical depth is used to estimate flow rate in the channel. In this paper, ... -
Application of 15N-NMR spectroscopy to analysis of amine based CO2 capture solvents
(Journal article; Peer reviewed, 2014)15N NMR spectroscopy is a useful tool for amine reactivity characterization since it can provide information about the availability of the lone pair of electrons on nitrogen through the measured chemical shift values, which ...