Blar i Institutt for kjemisk prosessteknologi på forfatter "Jakobsen, Hugo Atle"
-
Modelling and simulation of chemical looping combustion process in a double loop circulating fluidized bed reactor
Zhang, Yuanwei; Chao, Zhongxi; Jakobsen, Hugo Atle (Journal article, 2017)A reactive CFD model has been developed and implemented numerically in an in-house code for a coupled double loop circulation fluidized bed reactor. In the current work it is utilized for the chemical looping combustion ... -
Modelling and simulation of hydrodynamics in double loop circulating fluidizedbed reactor for chemical looping combustion process
Zhang, Yuanwei; Chao, Zhongxi; Jakobsen, Hugo Atle (Journal article, 2017)A multiphase CFD model has been developed and implemented in an in-house code for a coupled double loop circulation fluidized bed (DLCFB) reactor which can be utilized for the chemical looping combustion process. The air ... -
Numerical Implementation and Evaluation of a Set of Population Balance Breakage Closures
Skjervold, Vidar Torarin (Master thesis, 2016)The population balance equation (PBE) can be used to model multiphase processes, where one or more dispersed phases are distributed in a continuous medium. In such systems, the interfacial area is an important quantity, ... -
Numerical Study of Mass Transfer Limitations in a Bioreactor Operated in the Heterogeneous Flow Regime
Kure, Ida Kristine (Master thesis, 2017)With the increased focus on detaining a more environmental friendly industry, biological processes have been given more attention over the last years. Such a biological process is single cell protein (SCP) production, ... -
On the effect of the approach velocity on the coalescence of fluid particles
Ozan, Suat Canberk; Jakobsen, Hugo Atle (Journal article; Peer reviewed, 2019)The effect of the constant relative approach velocity of two Newtonian fluid particles on their coalescence is investigated via a film drainage model. The interfaces are deformable and allowed to have any degree of mobility. ... -
On the role of the surface rheology in film drainage between fluid particles
Ozan, Suat Canberk; Jakobsen, Hugo Atle (Journal article; Peer reviewed, 2019) -
On the Solution of the Pellet- and Reactor Model for the Steam Methane Reforming Process Using the Methods of Weighted Residuals
Tangen, Stian (Master thesis, 2012)The purpose of the thesis is to prove that the mole based formulation of a pellet model simulating the steam methane reforming reaction is identical to the novel mass based formulation. To prove this, the numerical methods ... -
Optimization of the Numerical Solution of the Population Balance Equation
Engh, Mathias (Master thesis, 2016)The population balance equation (PBE) is a frequently applied equation in the modeling of multiphase reactors. Accurate solution of the PBE is important in order to have a precise estimate of the interfacial area, which ... -
Prediction of coalescence and rebound of fluid particles in non-Newtonian media through film drainage modeling
Jakobsen, Hugo Atle (Master thesis, 2023)The drainage of a non-Newtonian film entrapped between two fluid particles that are moving toward one another with time-dependent velocities, causing either coalescence and rebound, is examined in this thesis. Attention ... -
Single Drop Breakage in Turbulent Flow: Statistical Data Analysis
Herø, Eirik Helno; La Forgia, Nicolas; Solsvik, Jannike; Jakobsen, Hugo Atle (Peer reviewed; Journal article, 2020)To improve breakage models in the population balance framework, single octanol droplet experiments have been performed in a channel flow and recorded by high-speed camera. The study investigates impact of mother drop size ... -
Steady Laminar Flow over a Backwards Facing Step solved by the Finite Volume Method
Klavenes, Anita (Master thesis, 2020)Laminær, stasjonær strømning uten varmetransport i en rett kanal og i en kanal utvidet over et trinn (backwards facing step) har blitt løst ved bruk av Finite Volume Method. SIMPLE-algoritmen og Upwind Differencing ble ... -
The Fluid Flow Equations in General Curvilinear Coordinates solved with the SIMPLE Algorithm on a Staggered Curvilinear Grid
Grendstad, Ida Elise (Master thesis, 2021)Hovedmålet i denne mastergraden var å modellere strømningene over et bakovervendt steg ved å bruke SIMPLE algoritmen med et forskjøvet ikke-ortogonalt kurvelineært rutenett. SIMPLE ligningene ble løst i det beregnende ...