Browsing Institutt for kjemisk prosessteknologi by Title
Now showing items 1195-1214 of 1784
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One-pot synthesis of highly dispersed mesoporous Cu/ZrO2 catalysts for NH3-SCR
(Peer reviewed; Journal article, 2021)Catalysts consisting of highly dispersed copper on a mesoporous ZrO2 support were synthesised via a one-pot sol-gel synthesis and were tested for the selective catalytic reduction of NOx by NH3. The copper dispersion was ... -
Online PID Tuning for Unstable Processes: Application to Anti-Slug Control
(Master thesis, 2013)Slug flow is an undesired multiphase flow phenomena causing problems in the processing of oil and gas. Anti-slug control is therefore an important research topic. Satisfactory results have been achieved in anti-slug control ... -
Online Process Optimization with Active Constraint Set Changes using Simple Control Structures
(Journal article; Peer reviewed, 2019)The purpose of this paper is to show that online process optimization can be achieved using simple control structures without the need for solving numerical optimization problems online. In particular, we show that changes ... -
Ontology Design for Representation of mathematical Models
(Master thesis, 2015)In this study, ontologies intended for structuring information of physical-chemical-biological processes has been presented. The ontologies was implemented in a tool, called the "Ontology Editor", that facilitate for ... -
Ontology-based Computer-aided modelling Tool
(Master thesis, 2012)A long-lived software project for using the advantages of a computer in modelling of physical-chemical-biological processes has been under development by supervisor Prof Heinz A. Preisig. The software is designed to assist ... -
Ontology-Based Process Modelling-with Examples of Physical Topologies
(Journal article, 2021) -
Operando FTIR study of the NH3-SCR reaction over Cu/Al2O3 and Fe/Al2O3 catalysts
(Master thesis, 2018)The aim of this thesis was to perform an operando study of the NH3-SCR reaction using Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) and Mass Spectrometry (MS). The experiments were performed in a ... -
Operation and feasibility of batch hetero-azeotropic distillation
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:47, Doctoral thesis, 2004)Separation of azeotropic mixtures is of great industrial importance and distillation is the dominating unit operation for such separations. However, the presence of azeotropes and non-idealities in the phase behaviour of ... -
Opportunities of small-scale hydrogen production from MSWI fly ash
(Master thesis, 2022)Denne avhandlingen presenterer en innledende tekno-økonomisk vurdering av mulighetene for hydrogenproduksjon fra MSWI flyveaske. Arbeidet har blitt utført i samarbeid med selskapet NOAH, som driver anlegget for avfallshåndtering ... -
Optimal boundary control of a contact thawing process for foodstuff
(Journal article, 2016)In this work an approach for thawing blocks of foodstuff, in particular fish, is introduced. The functional principle is based on plate freezer technology, which has been used in industry for decades. The aim of this work ... -
Optimal Control of Energy Storage Systems
(Master thesis, 2021) -
Optimal Control of TES System by Using Nonlinear Model Predictive Control
(Master thesis, 2020)WE-utvinningsprosess (industriell spillvarme) gjenbruker varmeenergi som ellers ville gått tapt for å sikre og forbedre ressursbevaring og avfall, samt for å redusere kostnader. Under slike omstendigheter kan et termisk ... -
Optimal control of thermal energy storage under supply and demand uncertainty
(Master thesis, 2019) -
Optimal design issues of a gas-to-liquid process
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:9, Doctoral thesis, 2012)Interests in Fischer-Tropsch (FT) synthesis is increasing rapidly due to the recent improvements of the technology, clean-burning fuels (low sulphur, low aromatics) derived from the FT process and the realization that the ... -
Optimal dynamic operation of natural gas combined cycles accounting for stresses in thick-walled components
(Journal article; Peer reviewed, 2020)Flexible natural gas combined cycles will play a fundamental role in future electric markets.Stressesinthick-walled components and gasturbine load ramps are arguably the main limiting factors during transient operation.Classical ... -
Optimal Operation and Control of a Thermal Energy Storage System: Classical Advanced Control versus Model Predictive Control
(Peer reviewed; Journal article, 2020)The objective of this work is to define the optimal operation and control for a thermal storage system with heat sources and a consumer, which exchange utilities using one hot water thermal energy storage tank. In this ... -
Optimal operation and control of heat to power cycles: A new perspective from a systematic plantwide control approach
(Peer reviewed; Journal article, 2020)In this work, we use a plantwide control framework to systematically identify the control objectives, operational and environmental constraints, and degrees of freedom for a heat to power cycle with a drum, one pressure ... -
Optimal Operation and Control of Heat-to-Power Cycles: a New Perspective using a Systematic Plantwide Control Approach
(Journal article; Peer reviewed, 2019)We use a systematic plantwide control framework to analyze optimal operation of a simple heatto- power steam cycle with a single pressure level and a drum. The present control solutions for power plants1 have been developed ... -
Optimal Operation and Control of Thermal Energy Systems
(Doctoral theses at NTNU;2023:43, Doctoral thesis, 2023)This thesis explores broad topics in the area of optimal control and operation of thermal energy systems, and it is divided into three parts. Part I is entitled Optimal operation and control of heat-to-power cycles: a ... -
Optimal Operation and Design of a Thermal Energy Storage Tank
(Master thesis, 2021)