Flexibility and robustness of a high-temperature air/ceramic thermocline heat storage pilot. (February 2019)

• Record Type: Journal Article
• Authors: Nicolas, Lopez Ferber; Falcoz, Q.; Pham Minh, D.; Hoffmann, J.F.; Meffre, A.; Nzihou, A.; Goetz, V.
• Is Part Of: Journal of energy storage. Volume 21(2019)
• Page Start: 393
• Page End: 404
• Publication Date: 2019-02
• Subjects: Thermal energy storage (TES) -- Industrial waste heat -- Thermal behaviour -- High temperature -- Air; Energy storage -- Periodicals; Energy storage -- Research -- Periodicals; 621.3126
• DOI: 10.1016/j.est.2018.11.034
• Languages: English
• ISSNs: 2352-152X

Abstract

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.