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Validation expérimentale d'un système de stockage thermocline air/céramique à échelle pilote - développement d'un matériau céramique issu de sous-produits industriels

Abstract : The recovery and valorization of high-temperature gaseous waste heat streams can benefit from the development of thermocline thermal energy storage, based on the use of a ceramic material as a solid filler and gases (including air) as heat transfer fluid. The wide diversity of waste heat streams implies developping a versatile and robust system, able to operate in such various conditions.This thesis aims at supporting the development of the company Eco-Tech Ceram, which focuses on developing a compact thermocline air/ceramic thermal storage unit (named EcoStock), and developing ceramics produced from industrial inorganic byproducts, designed to be used as thermal energy storage material. Regarding the « thermal storage » topic, this thesis is focused on the experimental validation of the EcoStock concept, through experimental campaigns on a representative pilot-scale system, especially regarding the influence of operating conditions over performances, and the sensitiviy of the system’s efficiency when discharged at different power level, or charged with low-quality heat streams (varying mass flow rate and inlet temperature during charging phase). Regarding the « ceramic » topic, this thesis is focused on developing a sintered ceramic based on municipal waste incinerator bottom ashes compatible with high temperature thermocline system, with an experimental approach, taking in consideration industrial potential of such ceramics by making industrial mass production of such material realistic, using already widely available industrial processes from the bricks and tiles industries.Keywords: thermal storage, thermocline, experimental validation, waste heat, high temperature, sintered ceramics, incinerator bottom ash valorization.
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Submitted on : Thursday, February 28, 2019 - 1:19:07 PM
Last modification on : Friday, January 17, 2020 - 10:28:24 AM
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Nicolas Lopez Ferber. Validation expérimentale d'un système de stockage thermocline air/céramique à échelle pilote - développement d'un matériau céramique issu de sous-produits industriels. Génie des procédés. Université de Perpignan, 2018. Français. ⟨NNT : 2018PERP0041⟩. ⟨tel-02052245⟩

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