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Medientyp: E-Artikel Titel: Part load behaviour of power plants with a retrofitted post-combustion CO2 capture process Beteiligte: Roeder, Volker [VerfasserIn]; Kather, Alfons [VerfasserIn] Körperschaft: Technische Universität Hamburg-Harburg ; Technische Universität Hamburg-Harburg, Institut für Energietechnik Erschienen: 28 August 2014 Erschienen in: Energy procedia ; 51(2013), Seite 207-216 Sprache: Englisch DOI: 10.1016/j.egypro.2014.07.024; 10.15480/882.2218 ISSN: 1876-6102 Identifikator: Schlagwörter: post-combustion capture ; part load behaviour ; IP/LP crossover pressure ; balancing power Entstehung: Anmerkungen: Sonstige Körperschaft: Technische Universität Hamburg-Harburg Sonstige Körperschaft: Technische Universität Hamburg-Harburg, Institut für Energietechnik Beschreibung: The flexible and part load operation of fossil-fuelled power plants will increase due to the higher share of fluctuating renewable energies, like wind and solar power. In this work the part load behaviour of the post-combustion CO2 capture (PCC) process is evaluated. The net efficiency of the conventional hard-coal-fired power plant decreases from 45.6% at full load to 41.5% at 40% load. The net efficiency with PCC using 7 m MEA (monoethanolamine) as solvent decreases to 34.8% at full load and to 30.1% at 40% load. The pressure of the intermediate pressure/low pressure crossover section has major influence on the efficiency. In part load higher pressures are in advantage due to lower throttling losses. The shutdown of the PCC is a possibility to generate balancing power. A reduced capture rate of 75% leads to a generation of 5% additional power. © 2013 Published Elsevier Ltd. Zugangsstatus: Freier Zugang