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Item type:Publication, Access status: with files , Dynamics of postcombustion CO2 capture plants : modeling, validation, and case study(American Chemical Society (ACS), 2017-01-13); ; ; ; The capture of CO2 from power plant flue gases provides an opportunity to mitigate emissions that are harmful to the global climate. While the process of CO2 capture using an aqueous amine solution is well-known from experience in other technical sectors (e.g., acid gas removal in the gas processing industry), its operation combined with a power plant still needs investigation because in this case, the interaction with power plants that are increasingly operated dynamically poses control challenges. This article presents the dynamic modeling of CO2 capture plants followed by a detailed validation using transient measurements recorded from the pilot plant operated at the Maasvlakte power station in the Netherlands. The model predictions are in good agreement with the experimental data related to the transient changes of the main process variables such as flow rate, CO2 concentrations, temperatures, and solvent loading. The validated model was used to study the effects of fast power plant transients on the capture plant operation. A relevant result of this work is that an integrated CO2 capture plant might enable more dynamic operation of retrofitted fossil fuel power plants because the large amount of steam needed by the capture process can be diverted rapidly to and from the power plant.Publicationtype: Journal ArticleScopus© Citations 22 268 413 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Dynamic behavior of coal-fired power plants with postcombustion CO₂ captureThe combined operation of postcombustion CO₂ capture and a power plant is a complex process with significant mutual interactions. Although the application of CO₂ capture imposes an efficiency penalty on the power plant, it also provides the opportunity to operate the power plant in a more flexible way. To analyze this process, a detailed model of a postcombustion capture plant is developed and validated with measurement data. Afterward, the model is coupled to the model of a hard coal-fired power plant to study the effects of a joint operation. In a case study scenario, the steam extraction of the carbon capture plant is reduced by 50% to increase the power generation of the power plant. The results indicate that it is possible to provide primary frequency control by using this mode of operation.Publicationtype: Journal ArticleScopus© Citations 22 521 1129 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Simulation des dynamischen Verhaltens von thermischen Trennprozessen am Beispiel der CO²-AbtrennungDiese Arbeit beschäftigt sich mit der Erstellung von validierten Modellen zur dynamischen Simulation einer post-combustion CO²-Abtrennung und untersucht deren Verhalten in Kopplung mit einem Kraftwerk. Die Untersuchung umfasst auch den Anfahrvorgang der Abtrennanlage. Darüber hinaus wird eine Methode zur Erstellung von vereinfachten Modellen entwickelt und getestet. Außerdem wird eine neue Vorgehensweise zur Anbindung externer Objekte zur effizienten Berechnung von Stoffdaten vorgeschlagen.Publicationtype: Doctoral Thesis56 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Interfacing Models for Thermal Separation Processes with Fluid Property Data from External Sources(Linköping University Electronic Press, 2014-12); ; ; So far, when modelling processes that demand for multi-phase and multi-component fluid property data, the user has to implement the required media models in the Modelica language as these types of fluids are not supported by Modelica.Media. This paper presents a first approach on how to implement fluid property data in process models of an existing library from external sources and highlights which problems have to be overcome. Furthermore, it provides recommendations for the design of an efficient and user-friendly interface to external media packages.Publicationtype: Conference Paper193