Blar i NTNU Open på forfatter "Nord, Lars Olof"
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Enhanced single-loop control of a moving bed temperature swing adsorption CO2 capture process
Skjervold, Vidar Torarin; Nord, Lars Olof (Peer reviewed; Journal article, 2023)Using a model in gPROMS, we study a Zeolite 13X-based moving bed temperature swing adsorption (MBTSA) process designed to capture CO2 from a coal-fired power plant. Two enhanced single-loop control strategies were compared ... -
Green methanol
Blaszkiewicz, Robert (Master thesis, 2023)Denne forskinga undersøkte moglegheita for å syntetisere grøn metanol i lys av prognosene som eit interessant e-drivstoff, ved å kombinere hydrogen og karbondioksid ved hjelp av fornybare energikjelder. Dermed skulle tre ... -
Incorporation of uncertainty analysis in modeling of integrated reforming combined cycle
Nord, Lars Olof; Gong, Bo; Bolland, Olav; McRae, Gregory J. (Journal article; Peer reviewed, 2010)A systematic approach to quantify uncertainties in an integrated reforming combined cycle (IRCC) process model employing CO2 capture is presented. IRCC involves reforming of natural gas into a hydrogen-rich fuel which is ... -
Modelling and simulation of CO2 (carbon dioxide) bottoming cycles for offshore oil and gas installations at design and off-design conditions
Walnum, Harald Taxt; Nekså, Petter; Nord, Lars Olof; Andresen, Trond (Peer reviewed; Journal article, 2013)Improved energy efficiency is an issue of increasing importance in offshore oil and gas installations. The power on offshore installations is generated by gas turbines operating in a simple cycle. There is an obvious ... -
Off-design Simulations of Offshore Combined Cycles
Flatebø, Øystein (Master thesis, 2012)This thesis presents an off-design simulation of offshore combined cycles. Offshore installations have a substantial power demand to facilitate the oil and gas production. To cover this need of power almost all the platforms ... -
Optimization of Combined Cycles for Offshore Oil and Gas Installations
Sletten, Alexander Svae (Master thesis, 2013)With the increasing focus on the greenhouse effect and the introduction of taxation on NOX and CO2 emissions there has been an increased interest in reducing the emissions from the offshore oil and gas installations to ... -
Optimization of ORCs for low grade heat recovery: working fluid selection, methodology and applications
Castelli, Alessandro Francesco (Master thesis, 2017)n this work two different heat sources were considered: geothermal brine at temperatures ranging from 90 to 150°C, and waste heat coming from an aluminum manufacturing plant. A number of 64 pure fluids and 35 mixtures were ... -
Pre-combustion CO2 capture: Analysis of integrated reforming combined cycle
Nord, Lars Olof (Doctoral Theses at NTNU, 1503-8181; 2010:82, Doctoral thesis, 2010)This thesis presents processes for reducing CO2 emissions from natural gas (NG) power plants, which could help attenuate the rise in atmospheric temperature. Objectives for the thesis work were process design and integration ... -
Process simulation and evaluation of options for heat and power generation on offshore oil and gas installations
Brenntrø, Jonas (Master thesis, 2016)In the efforts of trying to reduce global greenhouse gas emissions, the Norwegian oil and gas industry is looking for ways to improve efficiencies when supplying heat and power offshore. By making a scenario of a platform ... -
Process Simulation of Oxy-combustion CO2 Capture in Cement Plant
Skinnemoen, Maria Magnussen (Master thesis, 2014)The objectives of this master thesis have been to model and simulate oxy-combustion CO2 capture in a cement plant. The model developed is a process simulation of the calcination process with varying degree of air in-leakage, ... -
Process simulation of semi-closed recuperated cycle
Tomás Verde, Judit (Master thesis, 2015)Nowadays, the combined cycle gas turbine (CCGT) is the most used technology for electric power generation among the plants that produce electricity from fossil fuels. There are several advantages that made the widespread ... -
Techno-economic and thermodynamic optimization of Rankine cycles
Encabo Cáceres, Inés (Master thesis, 2018)Rankine Cycles are an effective and efficient way of producing power from low-medium temperature heat sources when combined with low-medium critical temperature working fluids. The technology provides high flexibility in ... -
Transient performance of combined cycle power plant with absorption based post-combustion CO2 capture: dynamic simulations and pilot plant testing
Montañés, Rubén Mocholí (Doctoral theses at NTNU;2018:168, Doctoral thesis, 2018)The thesis presents transient performance analysis of chemical absorption processes for reducing CO2 emissions from natural gas combined cycle power plants (NGCCs), which can contribute to reduce greenhouse gas emissions ... -
Turbomachinery design for Rankine cycles in waste heat recovery applications
Agromayor Otero, Roberto (Master thesis, 2017)Rankine Cycles are an effective and efficient manner to convert waste thermal energy into power. Numerous fluids can be used in Rankine cycles, including water, hydrocarbons, hydrofluorocarbons, siloxanes, alcohols or even ... -
A Unified Geometry Parametrization Method for Turbomachinery Blades
Otero, Roberto Agromayor; Nord, Lars Olof; Pini, Matteo (Peer reviewed; Journal article, 2021)Turbomachinery design is increasingly carried out by means of automated workflows based on high-fidelity physical models and optimization algorithms. The parametrization of the blade geometry is an essential aspect of such ... -
Weight Estimation of Steam Cycle for CO2 Capture System on Offshore Oil and Gas Installation
Haug, Kjartan Christian (Master thesis, 2016)Climate change due to increasing anthropogenic CO2 emissions is a major concern both in Norway, and globally. Greater environmental focus and increased taxes on emitted CO2 have led to corporate efforts on reducing CO2 ...