Solar Thermochemical Energy Storage Through Carbonation Cycles of SrCO₃/SrO Supported on SrZrO₃ Public Deposited

http://ir.library.oregonstate.edu/concern/articles/02870x642

This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Wiley-VCH Verlag GmbH & Co., and can be found at:  http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291864-564X/

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  • Solar Thermochemical Energy Storage Through Carbonation Cycles of SrCO3/SrO Supported on SrZrO3
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  • Solar thermochemical energy storage has enormous potential for enabling cost-effective concentrated solar power (CSP). A thermochemical storage system based on a SrO/SrCO₃ carbonation cycle offers the ability to store and release high temperature (≈1200 °C) heat. The energy density of SrCO₃/SrO systems supported by zirconia-based sintering inhibitors was investigated for 15 cycles of exothermic carbonation at 1150 °C followed by decomposition at 1235 °C. A sample with 40 wt % of SrO supported by yttria-stabilized zirconia (YSZ) shows good energy storage stability at 1450 MJ m⁻³ over fifteen cycles at the same cycling temperatures. After further testing over 45 cycles, a decrease in energy storage capacity to 1260 MJ m⁻³ is observed during the final cycle. The decrease is due to slowing carbonation kinetics, and the original value of energy density may be obtained by lengthening the carbonation steps.
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  • Rhodes, N. R., Barde, A., Randhir, K., Li, L., Hahn, D. W., Mei, R., ... & AuYeung, N. (2015). Solar Thermochemical Energy Storage Through Carbonation Cycles of SrCO₃/SrO Supported on SrZrO₃. ChemSusChem, 8(22), 3793-3798. doi:10.1002/cssc.201501023
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  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2016-07-18T22:07:25Z No. of bitstreams: 1 RhodesSolarThermochemicalEnergyStorageThroughCarbonationCycles.pdf: 864231 bytes, checksum: ca924d97001861e4626cf92f04db0b37 (MD5)
  • description.provenance : Approved for entry into archive by Deanne Bruner(deanne.bruner@oregonstate.edu) on 2016-07-18T22:08:30Z (GMT) No. of bitstreams: 1 RhodesSolarThermochemicalEnergyStorageThroughCarbonationCycles.pdf: 864231 bytes, checksum: ca924d97001861e4626cf92f04db0b37 (MD5)
  • description.provenance : Made available in DSpace on 2016-07-18T22:08:30Z (GMT). No. of bitstreams: 1 RhodesSolarThermochemicalEnergyStorageThroughCarbonationCycles.pdf: 864231 bytes, checksum: ca924d97001861e4626cf92f04db0b37 (MD5) Previous issue date: 2015-11-23

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