Abstract
Energy storage will play an essential role by complementing renewable energy sources, which are central to the decarbonization of the power sector. Sensible thermal energy storage (TES) system through heating materials with high-temperature heat transfer fluid (HTF) is the simplest and most inexpensive TES technology. However, the inherent disadvantage of thermocline degradation makes the packed-bed TES system has several negative consequences. In the present study, a passive thermocline control (TCC) method with a high ratio of height-diameter and an active TCC method by setting an ending charging temperature were proposed. The results showed that the heat transfer between air and solid thermal storage materials was enhanced because of the fast airflow and the long airflow passage of the TES system with the passive TCC method. The utilization factors were about 75%, and thermal energy efficiencies were about 78%–80% under different interval times between charging and discharging. Combined with the active TCC method, the stable discharging duration was 6%–19% longer than just using the passive TCC method.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
