70200 20190709135522.0 doi 10.1016/j.ijggc.2017.07.018 sideral 100767 ART-2017-100767 eng Espatolero, S. An operational approach for the designing of an energy integrated oxy-fuel CFB power plant 2017 Access copy available to the general public Unrestricted In order to increase the overall net electric efficiency and consequently to decrease the energy penalty in oxy-fired systems, heat integration configurations must be proposed. Coupling among the Air Separation Unit (ASU), the Compression and Purification Unit (CPU) and flue gases leaving the boiler becomes critical to obtain good efficiency figures. Many solutions have tried to show outstanding efficiency results but practical proposals are necessary to develop the technology. The use of flue gases waste energy to recycle flue gases heating up, oxygen preheating and increasing temperature of feedwater to steam cycle has been proposed to surpass the efficiency reduction. Nevertheless, care should be taken as potential problems would appear if only theoretical analysis is carried out. This work deals with a suitable and flexible design to increase the overall efficiency of an oxy-fuel combustion power plant working with high O2 concentration. Waste energy has been integrated avoiding any potential risk/damage into a new designed steam cycle. Applied solutions try to use lower cost proven materials in heat exchangers and simple equipment designs avoiding gas-gas heaters. Novel arrangements are presented, such as indirect heat exchangers, plastic heaters or different configurations integrating high pressure feedwater and low pressure condensate mass flows. Finally, results are compared with a previously optimized power plant design without operational restrictions and just a slight reduction in power plant net efficiency (less than 1%) was observed between both concepts. info:eu-repo/grantAgreement/EC/FP7/295533/EU/Optimization of Oxygen-based CFBC Technology with CO2 capture/O2GEN info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 4.078 2017 ENERGY & FUELS 27 / 97 = 0.278 2017 Q2 T1 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 11 / 33 = 0.333 2017 Q2 T2 ENGINEERING, ENVIRONMENTAL 15 / 50 = 0.3 2017 Q2 T1 1.458 2017 Energy (miscellaneous) 2017 Q1 Pollution 2017 Q1 Management, Monitoring, Policy and Law 2017 Q1 Industrial and Manufacturing Engineering 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0001-7379-6159 Romeo, L.M. Universidad de Zaragoza Escudero, A.I. Kuivalainen, R. 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 64 (2017), 204-211 International Journal of Greenhouse Gas Control International Journal of Greenhouse Gas Control 1750-5836 349150 http://zaguan.unizar.es/record/70200/files/texto_completo.pdf Postprint 96735 http://zaguan.unizar.es/record/70200/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:70200 articulos driver 2019-07-09-11:58:13 ARTICLE