Blar i Institutt for kjemisk prosessteknologi på forfatter "Nord, Lars O."
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Model predictive control for combined cycles integrated with CO2 capture plants
Rúa, Jairo; Nord, Lars O.; Hillestad, Magne (Peer reviewed; Journal article, 2021)Flexible thermal power plants integrated with CO2 capture systems can balance the intermittent power generation of renewable energy sources with low-carbon electricity. Among these power systems, natural gas combined cycles ... -
Optimal dynamic operation of natural gas combined cycles accounting for stresses in thick-walled components
Rúa, Jairo; Nord, Lars O.; Agromayor, Roberto; Hillestad, Magne (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 heat to power cycles: A new perspective from a systematic plantwide control approach
Zotica, Cristina; Nord, Lars O.; Kovács, Jenő; Skogestad, Sigurd (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
Zotica, Cristina Florina; Nord, Lars O.; Kovács, Jenő; Skogestad, Sigurd (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
Zotica, Cristina (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 scheduling of flexible thermal power plants with lifetime enhancement under uncertainty
Rúa, Jairo; Verheyleweghen, Adriaen; Jäschke, Johannes; Nord, Lars O. (Peer reviewed; Journal article, 2021)Renewable energy sources have been the focal point to decarbonise the power sector. The large deployment of these intermittent power generation units requires mechanisms to balance the grid. Thermal power plants can provide ...