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A lab-scale rotary kiln for thermal treatment of particulate materials under high concentrated solar radiation: Experimental assessment and transient numerical modeling

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.contributor.authorGallo, Alessandro
dc.contributor.authorAlonso, Elisa
dc.contributor.authorPérez Rábago, Carlos
dc.contributor.authorFuentealba, Edward L.
dc.contributor.authorRoldán, María Isabel
dc.date.accessioned2022-09-07T09:08:54Z
dc.date.available2022-09-07T09:08:54Z
dc.date.issued2019-08
dc.description.abstractRotary kilns are worldwide used for industrial processes that involve thermal treatments of particulate materials. However, a great amount of fossil fuels is employed in such processes. As alternative, solar rotary kilns are considered for this application due to their versatility and potential to substitute traditional fossil-fuel driven devices. In order to boost the development of this technology, efforts have to be focused on the control of the particle temperature during the treatment. In this context, a lab-scale rotary kiln was built and tested using a 7- kWe high-flux solar simulator at University of Antofagasta. It was conceived to treat particulate materials of different nature and it is able to reach temperatures higher than 800 °C under different operation strategies. Silicon carbide was selected for initial tests because it is inert, endures high temperatures (up to 1600 °C) and it has been proposed as thermal storage vector in several researches on concentrated solar power. In a first stage, the empty kiln was preheated up to about 800 °C, reaching a steady state in less than three hours and with a power of approximately 370 W entering the kiln cavity. Afterwards, 43 g of silicon carbide were introduced in the furnace and the system was heated again up to a second steady state above 800 °C. In this stage, particles showed a fast increment of their temperature and exceeded 700 °C in less than three minutes after loading. A one-dimensional transient numerical model was also developed to perform the thermal analysis of the kiln and the estimation of both the particle temperature and the system efficiency. Numerical results showed good agreement with experimental data and thermal losses could be quantified in detail. Therefore, the model was also used to predict the thermal behavior of a solar rotary kiln working in batch mode.en
dc.description.sponsorshipThe authors acknowledge the financial support provided by the FONDECYT project number 3150026 of CONICYT (Chile), the Education Ministry of Chile Grant PMI ANT 1201, as well as CONICYT/ FONDAP/15110019 “Solar Energy Research Center” SERC-Chile. The authors also gratefully acknowledge the financial support received from the Sectorial Fund CONACYT-SENER-Energy Sustainability, through grant 207450, Mexican Center for Innovation in Solar Energy (CeMIE-Sol), whithin strategic project P-10 “Solar Fuels and Industrial Processes” (COSOLpi). Special thanks go to the students Lou Cardinale, Rodrigo Méndez, and Daniel Vidal who gave a precious contribution during the experimental trials at LaCoSA of University of Antofagasta.en
dc.format.extent17
dc.identifier.bibliographicCitationGallo, A., Alonso, E., Pérez-Rábago, C., Fuentealba, E., & Roldán, M. I. (2019). A lab-scale rotary kiln for thermal treatment of particulate materials under high concentrated solar radiation: Experimental assessment and transient numerical modeling. In Solar Energy, 188, 1013–1030en
dc.identifier.doihttps://doi.org/10.1016/j.solener.2019.07.006
dc.identifier.issn0038-092X
dc.identifier.publicationfirstpage1013
dc.identifier.publicationlastpage1030
dc.identifier.publicationtitleSOLAR ENERGYen
dc.identifier.publicationvolume188
dc.identifier.urihttps://hdl.handle.net/10016/35649
dc.identifier.uxxiAR/0000025924
dc.language.isoengen
dc.publisherELSEVIER BVen
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0038092X19306607?via%3Dihub#!en
dc.rights© 2019 International Solar Energy Society. Published by Elsevier Ltd. All rights reserved.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMedio Ambientees
dc.subject.otherConcentrating solar heaten
dc.subject.otherRotary kilnsen
dc.subject.otherIndustrial applicationsen
dc.subject.otherSolar thermal receiveren
dc.titleA lab-scale rotary kiln for thermal treatment of particulate materials under high concentrated solar radiation: Experimental assessment and transient numerical modelingen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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