Browsing Fakultet for naturvitenskap (NV) by Title
Now showing items 8310-8329 of 12759
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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 harvesting in a changing climate
(Peer reviewed; Journal article, 2021)Choosing the right harvesting strategy is crucial for sustainable utilization of biological resources but is challenging in real systems with fluctuating environments. This challenge is expected to become even greater with ... -
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) -
Optimal Operation of a Solar Powered Thermal Energy Storage System for Cooking
(Master thesis, 2020)I denne masteroppgaven ble driften av et varmelagringssystem drevet av overskuddsenergi fra solcelleproduksjon for matlaging modellert og optimalisert. Hovedformålet med oppgaven var å undersøke systemets kapasitet under ... -
Optimal operation of a subsea separation system including a coalescence based gravity separator model and a produced water treatment section
(Journal article; Peer reviewed, 2019)In this work, we develop a model for a gravity separator, and we use it together with models from the literature to study the control of a subsea separation system that separates oil, gas, and water from well fluids in ... -
Optimal Operation of Dividing Wall Columns
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:177, Doctoral thesis, 2011)This thesis discusses the control and operation of dividing wall columns. In particular the attention is on the Kaibel column, a four-product dividing wall column with two side-streams. The Kaibel column has for a given ... -
Optimal operation of energy storage in buildings - Use of hot water systems
(Master thesis, 2013)The purpose of this study is to maximize the potential which lies in domestic hot water heaters. Today the temperature function in the hot water tank is constant throughout the day and the hot water demand is met by an ... -
Optimal Operation of Heat Exchanger Networks
(Master thesis, 2011)Optimal operation of heat exchanger networks is much less studied than optimal design. The control objective of a heat exchanger network is to control the temperature out of the heat exchanger network within a certain ... -
Optimal Operation of Integrated Chemical Processes: With Application to the Ammonia Synthesis
(Doctoral theses at NTNU;2018:222, Doctoral thesis, 2018)Chemical processes have to be operated at their economic optimum to remain competitive. This is called optimal operation. Optimal operation is frequently incorporated using a real-time optimization approach. In this approach, ... -
Optimal Operation of Kaibel Columns
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:297, Doctoral thesis, 2014)Kaibel distillation column performs the separation of 4 products in a dividing-wall arrangement. This column provides significant energy and capital savings compared to conventional arrangements. The focus in this thesis ... -
Optimal Operation of Parallel Heat Exchanger Networks
(Master thesis, 2013)Optimal operation of parallel heat exchanger networks is desirable for many processesaiming to achieve increased supply and potentially higher profit. The aimis to control the final outlet temperature within a certain ... -
Optimal Operation of Refrigeration Cycles
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:91, Doctoral thesis, 2008) -
Optimal Operation of Small LNG Refrigeration Cycles
(Master thesis, 2016)With the recent increases in the market of natural gas, new production alternatives have become available. One of these is the production in remote places. To increase the profit of this process, it is necessary to count ... -
Optimal operation strategies for dynamic processes under uncertainty
(Doctoral thesis at NTNU;2016:105, Doctoral thesis, 2016)The main focus of this thesis is to find implementation strategies for the optimal operation of processes during transients. That is, we do not focus on the algorithms to solve a given dynamic optimization problem, but ...