Institutt for prosess-, energi- og miljøteknologi: Recent submissions
Now showing items 21-40 of 338
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Simulation based Cost Optimization tool for CO2 Absorption Processes: Iterative Detailed Factor (IDF) Scheme
(Journal article; Peer reviewed, 2021)A simple, fast, and accurate process simulation based cost estimation and optimization scheme was developed in Aspen HYSYS based on a detailed factorial methodology for solvent-based CO2 absorption and desorption processes. ... -
Simulation and Impact of different Optimization Parameters on CO2 Capture Cost
(Journal article; Peer reviewed, 2021)The influence of different process parameters/factors on CO2 capture cost, in a standard amine based CO2 capture process was studied through process simulation and cost estimation. The most influential factor was found to ... -
Mesh Sensitivity Analysis of an Entrained Flow Biomass Gasifier: A CPFD Study
(Chapter, 2022)Biomass such as agricultural waste, forestry waste, municipal solid waste, and industrial waste, are renewable energy sources that may be used to produce biofuels. Biomass gasification is an effective and promising technology ... -
Anaerobic Digestion Process Modeling Under Uncertainty: A Narrative Review
(Peer reviewed; Journal article, 2023)Growing concern about global climate change has led to considerable interest in investigating renewable energy sources such as the biological conversion of biomass to methane in an anaerobic environment. Through a series ... -
Experimental study and SEM-EDS analysis of agglomerates from gasification of biomass in fluidized beds
(Peer reviewed; Journal article, 2022)Fluidized bed gasification is an attractive conversion technology for biomass. However, processing biomass in fluidized beds suffers from ash related problems. In this work, bed agglomeration of wood pellets and grass ... -
Sensitivity and Uncertainty Analysis in a Circulating Fluidized Bed Reactor Modeling
(Peer reviewed; Journal article, 2022)As in many real applications, in the world of fine powders and small particles, there are uncertainties and vagueness in the parameters such as particle size, sphericity, initial solid void fraction, envelope density, etc. ... -
Study of the Thermal Performance of Industrial Alumina Chlorination Reactor Based on CPFD Simulation
(Peer reviewed; Journal article, 2022)As a part of the new sustainable aluminum production process under study, alumina chlorination plays a crucial role. The relevant process is an exothermic reaction in a fluidized bed reactor. The solid alumina reacts with ... -
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 ... -
Simulation and optimization of screw feeder in a bubbling fluidized bed gasification reactor
(Journal article; Peer reviewed, 2022)A fluidized bed biomass gasification reactor is used to produce syngas from biomass and municipal wastes. Gasification is a flexible technology where many different types of feedstocks can be used. The University of ... -
Simulation of the Effect of Local Electric Potential and Substrate Concentration on CO2 Reduction via Microbial Electrosynthesis
(Peer reviewed; Journal article, 2022)Integrating anaerobic digestion into electrochemical reactors is an advanced technology for biomethane recovery. Imposing low electric potential between electrodes, supplies CO2, electrons, and hydronium ions from anodic ... -
Image Processing and Measurement of the Bubble Properties in a Bubbling Fluidized Bed Reactor
(Journal article; Peer reviewed, 2022)The efficiency of a fluidized bed reactor depends on the bed fluid dynamic behavior, which is significantly influenced by the bubble properties. This work investigates the bubble properties of a bubbling fluidized bed ... -
Assessing and prioritizing challenges facing bioenergy supply chain in Norway: a Delphi-AHP method
(Peer reviewed; Journal article, 2022)Norway is leading the share of renewable energy in Europe by almost 75%. However, the share of bioenergy in Norway’s energy supply is insignificant. Bioenergy, the most common type of renewable energy, generates more energy ... -
Spray drop size characterization in an external-mixing bluff-body atomizer based on acoustics and Multivariate Analysis
(Peer reviewed; Journal article, 2022)Air-assist atomizers have been widely used in various applications such as the aerospace industry, internal combustion engines, molten metal, food processing, etc. The mean drop size for these atomizers was obtained through ... -
Evaluation of Complex Spray Behaviors of Sprinkler Spray Using FDS
(Peer reviewed; Journal article, 2022)It takes money, time, and energy to set up an experimental grid to measure the effectiveness of fire suppression parameters. Therefore, computational fluid dynamics (CFD) is an alternative in all fields as consequences ... -
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 ... -
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 ... -
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 ... -
Sensitivity Analysis and Anaerobic Digestion Modeling: A Scoping Review
(Peer reviewed; Journal article, 2022)A growing awareness of global climate change has led to an increased interest in investigating renewable energy sources, such as the anaerobic digestion of biomass. This process utilizes a wide range of microbial communities ... -
Application of Autonomous Inflow Control Valve for Enhanced Bitumen Recovery by Steam Assisted Gravity Drainage
(Peer reviewed; Journal article, 2022)Steam assisted gravity drainage is a thermal method for enhanced bitumen recovery. In this method, steam is injected to bitumen and heavy oil to reduce the viscosity and make the oil mobile. However, early breakthrough of ... -
Proceedings of the Tenth International Seminar on Fire and Explosion Hazards, 22-27 May 2022, Oslo, Norway
(Conference object; Peer reviewed, 2022)The Tenth International Seminar on Fire and Explosion Hazards (ISFEH10) organized in Oslo, Norway from 22 to 27 May 2022, is a place to share research on the physical effects of hazards, prediction methods for consequences, ...