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Alternative thermal energy storage systems for the energy transition.

Number: 331329

Author(s) : PY X.

Summary

The expected energy transition should include the development of the renewable energies, the valorization of industrial waste heats and the optimization of thermal industrial processes in both heat and cold applications. Most of those strategic topics would implement thermal storage in which proper thermal storage materials (TSM) would be involved. According to the actual related estimations, huge amounts of TSM would be needed, leading to possible tensions on international markets, lacks in availabilities and major depletions in still available natural mineral resources. For a decade, alternative TSM of high performances have been developed using inorganic industrial wastes as primary materials. Asbestos containing wastes, slags, coal fly ash, bottom ash, etc., were considered and corresponding ceramics (made by melting/crystallisation or sintering) studied.
In the present communication, a new generation of such recycled ceramics made by prior mixing of several industrial wastes (route offering the possibility to control the nature and properties of the final product) is presented. The paper is focussed on SiC/Mullite ceramic composites made of 100% wastes, their elaboration route and related properties. According to their observed performances, potential uses different from thermal energy storage are also mentioned. Beside their economic advantage, their environmental advantages are discussed and additional ways to reduce their footprint presented too. The perspectives of further efforts are developed and corresponding goals given.
Moreover, the communication is extended to the industrial application of those recycled materials. The concept of the EcoStock thermal storage unit developed by the Eco-Tech Ceram company is presented with its related applications to the valorization of industrial waste heats and renewable energies. Its implementation in both onsite and offsite waste heat valorizations are illustrated and explained.

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  • Original title: Alternative thermal energy storage systems for the energy transition.
  • Record ID : 30027640
  • Languages: English
  • Subject: Technology, Environment
  • Source: 6th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Nantes, France, August 26-28 2020
  • Publication date: 2020/08/26
  • Notes:

    This paper was presented during ICCC2020 but the PDF version is not available.

  • Document available for consultation in the library of the IIR headquarters only.

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