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dc.contributor.authorRougé, Sylviees_ES
dc.contributor.authorÁlvarez Criado, Yolandaes_ES
dc.contributor.authorHuille, Arthures_ES
dc.contributor.authorAbanades García, Juan Carloses_ES
dc.identifier.citationAIP Conference Proceedings 1850: 090005 (2017)es_ES
dc.descriptionProceedings of the 22nd SolarPACES 2016 International Conference, Abu Dhabi, UAEes_ES
dc.description.abstractThe CaO/Ca(OH)2 hydration/dehydration reaction has long been identified as a attractive method for storing CSP heat. However, the technology applications are still at laboratory scale (TG or small fixed beds). The objective of this work is to investigate the hydration and dehydration reactions performance in a bubbling fluidized bed (BFB) which offers a good potential with regards to heat and mass transfers and upscaling at industrial level. The reactions are first investigated in a 5.5 kW batch BFB, the main conditions are the bed temperature (400-500°C), the molar fraction of steam in the fluidizing gas (0-0.8), the fluidizing gas velocity (0.2-0.7 m/s) and the mass of lime in the batch (1.5-3.5 kg). To assist in the interpretation of the experimental results, a standard 1D bubbling reactor model is formulated and fitted to the experimental results. The results indicate that the hydration reaction is mainly controlled by the slow kinetics of the CaO material tested while significant emulsion-bubble mass-transfer resistances are identified during dehydration due to the much faster dehydration kinetics. In the continuity of these preliminary investigations, a continuous 15.5 kW BFB set-up has been designed, manufactured and started with the objective to operate the hydration and dehydration reactions in steady state during a few hours, and to investigate conditions of faster reactivity such as higher steam molar fractions (up to 1), temperatures (up to 600°C) and velocities (up to 1.5 m/s).es_ES
dc.description.sponsorshipThe financial support provided by the European Commission under the 7th Framework Program (StoRRe Project GA 282677) is acknowledged.es_ES
dc.publisherAmerican Institute of Physicses_ES
dc.titleProof of concept of the CaO/Ca(OH)2 reaction in a continuous heat-exchanger BFB reactor for thermochemical heat storage in CSP plantses_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderEuropean Commissiones_ES
oprm.item.hasRevisionno ko 0 false*
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