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Flexibility and robustness of a high-temperature air/ceramic thermocline heat storage pilot

Authors
  • Lopez Ferber, Nicolas
  • Falcoz, Q.
  • Minh, Doan Pham
  • Hoffmann, J.F.
  • Meffre, A.
  • Nzihou, Ange
  • Goetz, V.
Publication Date
Jan 01, 2019
Source
HAL-UPMC
Keywords
Language
English
License
Unknown
External links

Abstract

A high-temperature air/ceramic thermocline packed-bed heat storage pilot was designed and built to measure the effects of operating parameters and quality of the heat resource on its performance, with a horizontal duct of square section. The influence of inlet air flow rate during the discharging phase and the impact of a degraded inlet heat resource during the charging phase were studied. The results revealed that the horizontal orientation of the bed didn’t generate a thermal radial gradient. Results also show that the overall cycle efficiency is weakly affected by the changes in the operating conditions. Thermocline heat storage is surprisingly well-suited to managing resource instabilities. It forms a robust, flexible high temperature storage system applicable for industrial use to recover and deliver erratically produced waste heat.

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