Blar i Institutt for prosess-, energi- og miljøteknologi på tittel
Viser treff 291-310 av 333
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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 ... -
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, ... -
Simultaneous hydrogen production and consumption in Anaerobic mixed culture fermentation
(Journal article, 2012)The aim of the present study is to investigate the relevance of homoacetogenic H2 consumption on the bio-hydrogen yield and products distribution in mixed culture fermentation. A hybrid anaerobic reactor was operated for ... -
Sludge blanket anaerobic baffled reactor for source-separated blackwater treatment
(Journal article; Peer reviewed, 2018)The performance of a sludge blanket anaerobic baffled reactor was tested as an integrated treatment system for source-separated blackwater. The system consists of a stirred equalization tank, a buffer inlet tank, and two ... -
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. ... -
Speciation of MEA-CO2 adducts at equilibrium using Raman spectroscopy
(Journal article; Peer reviewed, 2014) -
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 ... -
Statistical diagnosis of a gas-solid fluidized bed using Electrical Capacitance Tomography
(Journal article; Peer reviewed, 2012)Fluidization experiments were performed using several particle size distributions of spherical glass particles, ranging from Geldart B to D. An Electrical Capacitance Tomography (ECT) tomograph was utilised in the present ... -
Stepwise Analysis Of Gasification Reactions With Aspen Plus And Cpfd
(Journal article; Peer reviewed, 2017)The energy from biomass can be utilized through the thermochemical conversion processes of pyrolysis and gasification. Biomass such as wood chips is heated in a gasification reactor to produce a synthesis gas containing ... -
Structural response analysis of explosions in hydrogen-air mixtures in tunnel-like geometries
(Peer reviewed; Journal article, 2021)This paper presents a structural response analysis based on the results of experiments involving gas explosions in inhomogeneous hydrogen-air mixtures in a channel. The channel was 3 m long, with a cross-section of 100 mm ... -
Study of agglomeration in fluidized bed gasification of biomass using CPFD simulations
(Journal article; Peer reviewed, 2019)Fluidized beds have been widely applied for the gasification of biomass. However, at high temperatures ash melting and subsequently bed agglomeration may occur. When biomass is used for thermal conversion processes, inorganic ... -
Study of agricultural waste gasification in an air-blown bubbling fluidized bed using a CPFD model
(Journal article; Peer reviewed, 2020)Gasification using a fluidized bed is a promising technology to convert agricultural residues into product gases. In this work, the syngas production potential from agricultural waste (grass pellets) is studied using ... -
Study of Fluidization Regimes using OpenFOAM Computational Fluid Dynamics
(Journal article; Peer reviewed, 2017)The objective of this study was using computational fluid dynamics simulation with OpenFOAM to study the fluidization properties for four types of particles classified as Geldart A, B, C and D. Fluidization regimes were ... -
Study of fluidized bed regimes using Computational Particle Fluid Dynamics
(Journal article; Peer reviewed, 2018)The fluidization technology has a wide range of applications. In chemical synthesis, fluidized bed is used to enhance heat and mass transfer between the reacting species. More application of this technology can also be ... -
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 ... -
Substitution of coal by refuse derived fuels (RDF) in the precalciner of a cement kiln system
(Journal article; Peer reviewed, 2017) -
Surface tension of alkanolamine solutions: an experimentally based review
(Journal article; Peer reviewed, 2017) -
Tailoring Cu nanoparticle catalyst for methanol synthesis using the spinning disk reactor
(Journal article; Peer reviewed, 2018)Cu nanoparticles are known to be very active for methanol (MeOH) synthesis at relatively low temperatures, such that smaller particle sizes yield better MeOH productivity. We aimed to control Cu nanoparticle (NP) size and ... -
Techno-Economic and Life Cycle Cost Analysis through the Lens of Uncertainty: A Scoping Review
(Peer reviewed; Journal article, 2022)Researchers have long been interested in developing new economic assessment methods to provide credible information and facilitate the sustainable development of new technologies and products. The techno-economic analysis ... -
Techno-Economic Assessment of Different Heat Exchangers for CO2 Capture
(Peer reviewed; Journal article, 2020)We examined the cost implications of selecting six different types of heat exchangers as the lean/rich heat exchanger in an amine-based CO2 capture process. The difference in total capital cost between different capture ...