Applicability of thermal energy storage recycled ceramics to high temperature and compressed air operating conditions

Abstract : Recycled ceramics made of inertized asbestos containing wastes have been submitted to high pressure/temperature cycling tests in the operating range of ACAES and CSP applications. Ten successive cycles between room conditions and 610 °C/30 bars for a cumulated duration of 2500 h lead to a validation of the ability of the material to resist to those constrains. The Wollastonite/Augite initial structure is gradually transformed in a unique Augite containing material. While mechanical parameters and density are unchanged, thermal capacity is reduced by 5% and thermal conductivity increased by 30%. This last result offers an advantageous way to enhance the thermal conductivity of those recycled ceramics, a key parameter to control the charge/discharge power in TES systems.
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Submitted on : Friday, July 17, 2015 - 3:36:26 PM
Last modification on : Thursday, January 11, 2018 - 6:22:15 AM

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A. Kere, N. Sadiki, X. Py, V. Goetz. Applicability of thermal energy storage recycled ceramics to high temperature and compressed air operating conditions. Energy Conversion and Management, Elsevier, 2014, 88, pp.113-119. ⟨10.1016/j.enconman.2014.08.008⟩. ⟨hal-01178176⟩

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