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A Numerical Study of Newtonian and Non-Newtonian Fluid Flows Described in Curvilinear Coordinates
(Master thesis, 2021)En laminær, stasjonær strømning uten varmeoverføring i en kanal over et utvidet trinn (backwards facing step), ble løst ved bruk av finite volume method. Upwind differencing scheme og SIMPLE-algoritmen ble bruk til å ... -
A Parallelized Global Optimization Method for use in Parameter Estimation
(Master thesis, 2018)When modeling biological systems with a bottom-up approach, the system parameters need to be calibrated for the model behavior to match that of the physical system. The problem is typically presented in the form of an ... -
A Performance and Kinetic Study of PEI-Impregnated Mesoporous Silica Spheres for Low-Temperature Carbon Capture.
(Master thesis, 2020)Karbon-fangst av røykgass er en av de mest lovende teknologiene for å bekjempe de alltid økende utslippene av drivhusgasser. Adsorpsjon av CO2 fra røykgass ved bruk av effektive solide sorbenter har vist mange fordeler, ... -
A Primal decomposition algorithm for distributed multistage scenario model predictive control
(Journal article; Peer reviewed, 2019)This paper proposes a primal decomposition algorithm for efficient computation of multistage scenario model predictive control, where the future evolution of uncertainty is represented by a scenario tree. This often results ... -
A review of material development in the field of carbon capture and the application of membrane-based processes in power plants and energy-intensive industries
(Journal article; Peer reviewed, 2018)This review highlights recent developments and future perspectives on CO2 capture from power plants and energy-intensive industries to reduce CO2 emissions. Different types of membrane materials for CO2 capture were reviewed ... -
A review of potential amine solvents for CO2 absorption process: Absorption capacity, cyclic capacity and pKa
(Journal article; Peer reviewed, 2017)Solvent selection is an important element to enable low energy requirement in post combustion CO2 capture process by means of chemical absorption. In this paper, we investigated the CO2 capture performance of 132 different ... -
A robust method to calculate the volume phase transition temperature (VPTT) for hydrogels and hybrids
(Journal article; Peer reviewed, 2017)Here, we report three different methods to determine the volume phase transition temperature (VPTT) of various systems including poly(N-isopropylacrylamide) (pNIPAm) based nanogels, Au nanoclusters and a combination of ... -
A Semi-Industrial Scale Process to Produce Carbon Membranes for Gas Separation
(Doctoral theses at NTNU;2019:296, Doctoral thesis, 2019)Carbon molecular sieve membranes (CMSMs) are thin carbon barriers, usually in the shape of a film or hollow fibre, that are capable of selectively transporting certain gases. CMSMs are prepared by the thermal decomposition, ... -
A Sensory-Motor Control Model of Animal Flight Explains Why Bats Fly Differently in Light Versus Dark
(Journal article; Peer reviewed, 2015)Animal flight requires fine motor control. However, it is unknown how flying animals rapidly transform noisy sensory information into adequate motor commands. Here we developed a sensorimotor control model that explains ... -
A Shortcut Design for Kaibel Columns Based on Minimum Energy Diagrams
(Journal article; Peer reviewed, 2011)In this paper, a shortcut procedure is proposed to design a 4-product dividing-wall column. It is based on the information derived from Vmin diagram. This has the advantage of having more meaningful guesses for energy ... -
A simple approach for on-line PI controller tuning using closed-loop setpoint responses
(Journal article; Peer reviewed, 2010) -
A Steady-State Isotopic Transient Kinetic Study of Cobalt Catalysts: Mechanistic Insights and Effect of Cobalt Particle Size, Supports and Promoters
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:280, Doctoral thesis, 2011) -
A study of film thickness and hydrodynamic entrance length in liquid laminar film flow along a vertical tube
(Journal article, 2018)The liquid film thickness and hydrodynamic entrance length in a vertical tube was studied experimentally and numerically. Measurements using distilled water, 30 wt % MEA and 40 wt % sugar solutions were carried out to ... -
A study of the formation mechanism of calcium naphtenate deposits by using the axisymmetric drop shape analysis technique
(Master thesis, 2018)New batches of ARN were extracted with a yield of 15-17 % and with a purity of 92-93 %. The axisymmetric drop shape analysis (ADSA) technique was used on different samples of ARN, xylene and asphaltenes to study the ... -
A study of the sorption-enhanced steam methane reforming process
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:371, Doctoral thesis, 2012) -
A systematic procedure for process energy evaluation for post combustion CO2 capture: Case study of two novel strong bicarbonate-forming solvents
(Journal article; Peer reviewed, 2018)Process simulation is used for energetic evaluation of two novel strong bicarbonate forming solvents for post combustion CO2 capture, intended for coal- and natural gas based exhaust streams. An evaluation framework has ... -
A Techno-Economic Evaluation of Solvents in Biogas Upgrading
(Master thesis, 2023)Antropogene klimagassutslipp er anerkjent som hoved ̊arsaken til globale klimaendringer. For å begrense virkningene av klimaendringer er integrasjonen av fornybare energikilder i energisammensetningen avgjørende. Biometan ... -
Absorption and Desorption Study of Alkylamine Promoted DEEA Solvents for CO2 Capture
(Journal article; Peer reviewed, 2018)Three primary and two secondary mono-alkylamines, and a di-alkylamine (3 (Methylamino)propylamine, MAPA) were investigated in blend with a tertiary amine (2-(Diethylamino)ethanol, DEEA). The aim of the study was to ... -
Absorption of Carbon Dioxide - Modeling and Experimental Characterization
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:16, Doctoral thesis, 2004)Recent studies on the costs of different processes for CO2 capture from power plants show that post-combustion CO2 removal by absorption with chemical solvents has the potential to remain the most important process also ...