Browsing NTNU Open by Author "Mocholí Montañés, Rubén"
Now showing items 1-14 of 14
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Compact steam bottoming cycles: minimum weight design optimization and transient response of once through steam generators
Mocholí Montañés, Rubén; Skaugen, Geir; Hagen, Brede; Rohde, Daniel (Peer reviewed; Journal article, 2021)Compactness and weight minimization are key aspects for successful and widespread implementation of waste heat recovery steam cycles in off-shore oil and gas platforms due to the site weight and volume footprint constraints. ... -
Compact steam bottoming cycles: model validation with plant data and evaluation of control strategies for fast load changes
Nord, Lars O.; Mocholí Montañés, Rubén (Journal article; Peer reviewed, 2018)Power plants installed on offshore oil and gas installations need to be operated in a flexible manner in order to accommodate the variability in heat and power demands. The present paper describes steady-state process model ... -
Control of steam bottoming cycles using nonlinear input and output transformations for feedforward disturbance rejection
Zotica, Cristina Florina; Mocholí Montañés, Rubén; Reyes Lua, Adriana; Skogestad, Sigurd (Peer reviewed; Journal article, 2022)In this paper we analyze the control problem for a steam cycle that produces power by recovering waste-heat from gas turbines on an offshore installation. The waste-heat recovery unit is based on once-through steam generator ... -
Demonstrating load-change transient performance of a commercial-scale natural gas combined cycle power plant with post-combustion CO2 capture
Mocholí Montañés, Rubén; Gardarsdóttir, Stefanía Ósk; Johnson, Filip; Normann, Fredrik; Nord, Lars O. (Journal article; Peer reviewed, 2017)The present work aims to study the transient performance of a commercial-scale natural gas combined cycle (NGCC) power plant with post-combustion CO2 capture (PCC) system via linked dynamic process simulation models. The ... -
Design and evaluation of a method to produce hydrogen via water electrolysis at large scale
Romero Hernández, Paloma (Master thesis, 2022)Hydrogen has unique properties that can transform our fossil-fuel dependent economy into an hydrogen one. This element is the lightest and most abundant in the universe and its many industrial applications make it be a ... -
Design optimization of small-scale ORC cycles for fluctuating heat source
Kim, Donghoi; Mocholí Montañés, Rubén; Riboldi, Luca; Nord, Lars Olof; Spale, Jan; Novotny, Vaclav (Chapter, 2022)Organic Rankine cycles (ORC) are efficient technologies for waste heat recovery (WHR) at low to mid temperatures. For the design of ORC power cycles, several thermodynamic parameters should be considered. A challenge related ... -
Dynamic Process Model Development and Validation with Transient Plant Data Collected from an MEA Test Campaign at the CO2 Technology Center Mongstad
Mocholí Montañés, Rubén; Flø, Nina Enaasen; Dutta, Rohan; Nord, Lars O.; Bolland, Olav (Journal article; Peer reviewed, 2017)This work focuses on the development and validation of a dynamic process model of the post-combustion CO2 chemical absorption process with temperature swing absorption (TSA) using aqueous monoethanolamine (MEA) as solvent. ... -
Dynamic Process Model Validation and Control of the Amine Plant at CO2 Technology Centre Mongstad
Mocholí Montañés, Rubén; Flø, Nina Enaasen; Nord, Lars O. (Journal article; Peer reviewed, 2017)This paper presents a set of steady-state and transient data for dynamic process model validation of the chemical absorption process with monoethanolamine (MEA) for post-combustion CO2 capture of exhaust gas from a natural ... -
Dynamic process simulation of post-combustion CO2 capture process
Sandvær, Mikael (Master thesis, 2017)Due to the increased concern about global warming in recent years, it has been proposed that carbon capture and storage could be one of the solutions which can help reduce emissions of greenhouse gases from fossil power ... -
Effects of CO2-Absorption Control Strategies on the Dynamic Performance of a Supercritical Pulverized-Coal-Fired Power Plant
Gardarsdóttir, Stefanía Ósk; Mocholí Montañés, Rubén; Normann, Fredrik; Nord, Lars O.; Johnsson, Filip (Journal article; Peer reviewed, 2017)This work investigates the interactions that occur between a supercritical pulverized-coal-fired power plant and a downstream CO2-absorption process during load changes in the power plant by linking the dynamic models of ... -
Experimental results of transient testing at the amine plant at Technology Centre Mongstad: Open-loop responses and performance of decentralized control structures for load changes
Mocholí Montañés, Rubén; Flø, Nina Enaasen; Nord, Lars O. (Journal article; Peer reviewed, 2018)Flexible operation of combined cycle thermal power plants with chemical absorption post combustion CO2 capture is a key aspect for the development of the technology. Several studies have assessed the performance of ... -
Flexible operation of combined cycle gas turbine power plants with supplementary firing
Encabo Caceres, Ines; Mocholí Montañés, Rubén; Nord, Lars O. (Journal article; Peer reviewed, 2018)This article covers the use of supplementary firing in a gas-combined cycle power plant when high flexibility is required depending on the penetration of variable renewable energies and under different gas turbine loads. ... -
Hybrid Dynamic Surrogate Modelling for a Once-Through Steam Generator
Blakseth, Sindre Stenen; Andersson, Leif Erik; Mocholí Montañés, Rubén; Mazzetti, Marit Jagtoyen (Peer reviewed; Journal article, 2023)Four surrogate modelling techniques are compared in the context of modelling once-through steam generators (OTSGs) for offshore combined cycle gas turbines (GTCCs): Linear and polynomial regression, Gaussian process ... -
Identifying operational requirements for flexible CCS plant in future energy systems
Mocholí Montañés, Rubén; Korpås, Magnus; Nord, Lars O.; Jaehnert, Stefan (Journal article; Peer reviewed, 2016)This paper aims at a discussion of operational requirements for thermal power plants with carbon capture and storage in terms of their interaction with the power system, in regions with high penetration of variable renewable ...