Browsing Institutt for kjemisk prosessteknologi by Title
Now showing items 1-20 of 1850
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3D aligned-carbon-nanotubes@Li2FeSiO4 arrays as high rate capability cathodes for Li-ion batteries
(Journal article; Peer reviewed, 2013-09-27)3D aligned-carbon-nanotubes (ACNTs)@Li2FeSiO4 nanocomposite arrays on Al foil were developed as cathode materials for Li-ion batteries. The ACNTs were grown directly on an Al foil by a chemical vapor deposition method to ... -
3D carbon/polyaniline nanostructures for energy storage
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:215, Doctoral thesis, 2011)Among various types of electrical energy storage devices, supercapacitors (high power but low energy) and batteries (high energy but low power) are extensively studied. Present work aims to develop an electrode material ... -
A Brief Review of Nanocellulose Based Hybrid Membranes for CO2 Separation
(Journal article; Peer reviewed, 2019)Due to the high specific surface area, high mechanical strength and broad possibility of surface modification, nanocellulose has obtained much attention as a new class of bio-based nanomaterials with promising potential ... -
A Chemometric Study of Ethylene Oxychlorination
(Master thesis, 2020)Ethylene oxychlorination process using a CuCl2 catalyst is widely used to manufacture Poly Vinyl Chloride (PVC). The high exothermicity of this process makes temperature control difficult. The failure of proper temperature ... -
A comparative study of quality and safety of Atlantic cod (Gadus morhua) fillets during cold storage, as affected by different thawing methods of pre-rigor frozen headed and gutted fish
(Journal article; Peer reviewed, 2017)BACKGROUND The catch of marine whitefish is typically seasonal, whereas the land‐based processing industry has a need for all‐year stable supply of raw materials. This challenge can be met by applying fish frozen at sea. ... -
A comprehensive kinetics study on non-isothermal pyrolysis of kerogen from Green River oil shale
(Journal article; Peer reviewed, 2018)Fundamentally understanding the pyrolysis kinetics of kerogen is of prime scientific and industrial importance. Herein, bitumen- and carbonates-free kerogen sample is prepared through Soxhlet extraction followed by ... -
A Control- and Estimation-Oriented Gravity Separator Model for Oil and Gas Applications Based upon First-Principles
(Journal article; Peer reviewed, 2018)We introduce a simple model for a gravity separator based on first principles. It can be used for controller design to control the levels of oil, water, and the gas pressure as well as observer design to estimate unmeasurable ... -
A correlative spatiotemporal microscale study of calcium phosphate formation and transformation within an alginate hydrogel matrix.
(Journal article; Peer reviewed, 2016)The modification of soft hydrogels with hard inorganic components is a method used to form composite materials with application in non-load-bearing bone tissue engineering. The inclusion of an inorganic component may provide ... -
A critical update of experimental techniques of bulk and interfacial components for fluid characterization with relevance to well fluid processing and transport
(Journal article; Peer reviewed, 2020)The present article reviews techniques to address central flow assurance and separation issues. It is our purpose to update the need for extended information in order to draw adequate conclusions about the reason for ... -
A Distributed Algorithm for Scenario-based Model Predictive Control using Primal Decomposition *
(Journal article; Peer reviewed, 2018)In this paper, we consider the decomposition of scenario-based model predictive control problem. Scenario MPC explicitly considers the concept of recourse by representing the evolution of uncertainty by a discrete scenario ... -
A Distributed Optimization Strategy for Large Scale Oil and Gas Production Systems
(Journal article; Peer reviewed, 2018)n this paper, we consider the problem of real-time optimization of an oil and gas production network. The production network is often made of several wells from different reservoir sections producing to a common processing ... -
A DPD study of asphaltene aggregation: The role of inhibitor and asphaltene structure in diffusion-limited aggregation
(Journal article; Peer reviewed, 2017)The kinetic effects of DBSA (dodecyl benzene sulfonic acid) and a linear amphihile on asphaltene aggregation was investigated, using dissipative particle dynamics molecular simulations. The simulation results indicated ... -
A Dynamic Extremum Seeking Scheme Applied to Gas Lift Optimization
(Journal article; Peer reviewed, 2019)This paper presents the application of a data-driven optimization scheme using transient measurements to a gas-lift optimization problem. Optimal operation of a gas-lifted field involves controlling the marginal gas-oil ... -
A dynamic model of an alcaline water electrolysis plant and its control system
(Master thesis, 2024)Denne masteroppgaven undersøker kontrollstrukturen for et produksjonssystem for alkaline water electrolysis (AWE). Ved bruk av en fornybar energikilde er oscillerende energitilførsel en utfordring. Det er derfor av stor ... -
A gas to liquid Fischer-Tropsch process integrated with Solar Thermal Water Split - Techno-Economical Feasibility
(Master thesis, 2016)Hydrocarbons are used in many products, and are the primary energy source for current civilizations, mainly as combustible fuel. There is a rapidly growing demand for environmentally friendly and renewable energy sources ... -
A Graphical User Interface for the Computational Fluid Dynamics Software OpenFOAM
(Master thesis, 2014)A graphical user interface for the computational fluid dynamics software OpenFOAM has been constructed. OpenFOAM is a open source and powerful numerical software, but has much to be wanted in the field of user friendliness. ... -
A LifeCycle Analysis of Monocrystalline Silicon PV Panels
(Master thesis, 2024)Masteroppgaven gir en omfattende evaluering av miljøpåvirkningene forbundet med monokrystallinske silisium solcellepaneler fra produksjon til end-of-life (EoL) behandlinger. Oppgaven bruker livssyklusanalyse (LCA) metodikk ... -
A LifeCycle Analysis of Monocrystalline silicon PV Panels
(Master thesis, 2024)Masteroppgaven gir en omfattende evaluering av miljøpåvirkningene forbundet med monokrystallinske silisium solcellepaneler fra produksjon til end-of-life (EoL) behandlinger. Oppgaven bruker livssyklusanalyse (LCA) metodikk ... -
A machine learning framework for predicting chord length distributions: An adaption to experimental data
(Master thesis, 2022)Real time monitoring and control of crystallization processes in process industry producing food, fine chemicals and pharmaceuticals is of major importance to assess quality and purity of the product. The lack of available ... -
A Modeling Framework for Control of Smart-Scale Tubular Polymerization Reactors - A Case Study on Nonlinear Model-based Predictive Control of an Emulsion Copolymerization Process
(Master thesis, 2014)Polymer science is the underlying topic of this master's thesis, and the main scope is to develop and deploy models for on-line optimization and control for polymerization reactors. Specifically, free-radical emulsion ...