Blar i NTNU Open på forfatter "Skogestad, Sigurd"
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Lagrangian Decomposition for Dynamic Real-Time Optimization: Applied to Production Optimization Network
Sørlie, Ingvild (Master thesis, 2017)The scope of this thesis was to investigate the use of lagrangian decomposition for a dynamic real-time optimization(RTO) problem. The decomposition was performed on a gas lifted two-well network, controlled by a nonlinear ... -
Linear Combination of Gradients as Optimal Controlled Variables
Krishnamoorthy, Dinesh; Skogestad, Sigurd (Peer reviewed; Journal article, 2020)In this paper, we show that optimal economic operation can be achieved using feedback control, by controlling the right variables that translate economic objectives into control objectives. We formulate a generic framework ... -
Linear parameter-varying model for a refuellable zinc-air battery
Lao-Atiman, Woranunt; Olaru, Sorin; Diop, Sette; Skogestad, Sigurd; Arpornwichanop, Amornchai; Cheacharoen, Rongrong; Kheawhom, Soorathep (Peer reviewed; Journal article, 2020)Due to the increasing trend of using renewable energy, the development of an energy storage system (ESS) attracts great research interest. A zinc–air battery (ZAB) is a promising ESS due to its high capacity, low cost and ... -
Machine Learning and First Principles Modeling Applied to Multiphase Flow Estimation
Bikmukhametov, Timur (Doctoral theses at NTNU;2020:407, Doctoral thesis, 2020)Accurate knowledge of multiphase flowrates produced by each well in an oil and gas production system is important for performing production optimization, flow assurance and reservoir management. Among the alternatives, ... -
Minimum Energy for the four-product Kaibel-column
Halvorsen, Ivar J.; Skogestad, Sigurd (Lecture, 2006) -
Minimum Energy Operation of Petlyuk Distillation Columns - Nonsharp Product Specification
Halvorsen, Ivar J.; Skogestad, Sigurd (Chapter, 2009)The Petlyuk or fully thermally coupled distillation arrangement has the ability to separate a ternary feed into three pure products with an energy consumption 20-30% below conventional arrangements. The most interesting ... -
Model Predictive Control for a De-oiling Hydrocyclone: A Theoretical and Experimental Study
Gaudernack, Amund Egeland (Master thesis, 2021)Utslipp av produsert vann er en voksende bekymring på grunn av den negative miljøpåvirkningen. En potensiell løsning er de-oiling hydrosykloner, som er den mest brukte teknologien for å rense produsert vann. Compact Separator ... -
Model predictive control of a Kaibel distillation column
Kvernland, Martin Krister (Master thesis, 2009)Model predictive control (MPC) of a Kaibel distillation column is the main focus of this thesis. A model description together with a model extension is also considered. The motivation of using a Kaibel distillation column ... -
Model Predictive Control of a Kaibel Distillation Column
Kvernland, Martin Krister; Halvorsen, Ivar J.; Skogestad, Sigurd (Journal article; Peer reviewed, 2010)This is a simulation study on controlling a Kaibel distillation column with model predictive control (MPC). A Kaibel distillation column has several advantages compared with conventional binary column setups. The Kaibel ... -
Model Predictive Control of Compressor Systems
Batalov, Arthur (Master thesis, 2012)The purpose of this thesis was to investigate the suitability of applying MPC for the performance control of compressor systems. Dynamic model of the Kårstø gas compression system was used as a process model in D-spice ... -
Modeling and Experiments for Active Vapor Split Control of a Four-product Kaibel Column
Korbelarova, Johana (Master thesis, 2018)Kaibel column is studied as an energy efficient way of distillation. Kaibel column and other thermally coupled arrangements are introduced in theoretical part with focus on different approaches to control of these columns. ... -
Modeling and Optimization of a Subsea Oil-Water Separation System
Tyvold, Preben Fürst (Master thesis, 2015)Compact oil-water separators are essential for treatment of the production streams of oil fields at deep waters. The aim of this work has been to develop a model for a compact oil-water separation system for optimization ... -
Modeling of a Recirculating Aquaculture System
Andersskog, Kristin (Master thesis, 2020)Abstract will be available on 2023-08-31 -
Modeling, estimation and control for optimal operation of separation processes in oil and gas industry
Das, Tamal (Doctoral theses at NTNU;2018:234, Doctoral thesis, 2018)The primary focus of this thesis is to develop models for oil and gas separation processes. These models form the basis for estimation of unmeasured variables and the control of important process variables. The secondary ... -
Modelling and analysis of the response of Listeria monocytogenes to high pressure processing
Nikparvar, Bahareh (Doctoral theses at NTNU;2022:58, Doctoral thesis, 2022)The effects of environmental stresses on microorganisms have been well-studied, and cellular responses to stresses such as heat, cold, acids, and salts have been extensively discussed. Some previous works studied the membrane, ... -
Modelling and control of a Heat-to-Power cycle
Andersskog, Ida (Master thesis, 2019)En Varme-til-Kraft syklus er ofte benyttet i kraftindustrien for å konvertere termisk energi til elektrisk energi. Syklusen kan deles inn i tre hovedprosesser: forbrenning, vann/damp og generator, under antagelse om at ... -
Modelling and Control of Brobekk Waste Incineration Plant
Pehrson, Håvard (Master thesis, 2010)Model Predictive Control of Brobekk waste incineration plant is the main focus of this master thesis. The motivation for using MPC at Brobekk is primarily to improve the control of the temperature towards the combustion ... -
Modelling and control of horizontal gravity separator - Demulsification of Oil-Water Interface
Emebu, Samuel (Master thesis, 2018)The project involves evaluation of the performance of crude-oil and water separation in an horizontal gravity separator. It considers the effect of crude-oil and water emulsion formation and subsequently the demulsification ... -
Modelling and Optimization of Compact Sub-sea Separators - Gas-Liquid separation
Matovu, Fahad (Master thesis, 2015)This Master thesis focuses on Modelling and Optimization of Compact sub-sea separators using a given separation system. The separation system consists of three separation units: a gravity separator, a deliquidizer and a ... -
Modelling, Control, and Optimization of a Recirculating Aquaculture System
dos Santos, Allyne Machado (Doctoral theses at NTNU;2023:336, Doctoral thesis, 2023)Recirculating aquaculture systems (RAS) are closed-loop systems that recycle most of the effluent of a fish tank after particle removal and water treatment. This type of process requires good control of the water quality, ...