STUDY ON COLD STORAGE CHARACTERISTICS OF PACKED BED REGENERATOR WITH DIFFERENT ASPECT RATIO

Sun Xiao; Luo Zhibin; Cai Chunrong; Zhu Guangtao; Pei Aiguo

doi:10.19912/j.0254-0096.tynxb.2023-0971

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (10) : 745-751. DOI: 10.19912/j.0254-0096.tynxb.2023-0971

STUDY ON COLD STORAGE CHARACTERISTICS OF PACKED BED REGENERATOR WITH DIFFERENT ASPECT RATIO

Sun Xiao^1,2, Luo Zhibin¹, Cai Chunrong¹, Zhu Guangtao¹, Pei Aiguo³

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Abstract

16 sets of regenerators with the same total volume and different aspect ratio are studied under the same operating conditions. The quasi-steady state cold charge capacity, cold discharge capacity and charge-discharge efficiency are compared. The results show that the performance of the regenerator reaches a quasi-steady state after 20 cycles. When the aspect ratio of the single regenerator increases from 0.6 to 3, the cold charging/cold discharging capacity gradually increases, but the charge-discharge efficiency gradually decreases. When the parallel number of the regenerator increases from 1 to 6, the cold charge, cold discharge and cooling efficiency of the regenerator group all decrease. When designing the geometric structure of the regenerator, it is recommended to consider the single form or series form with an aspect ratio of 2. If a parallel connection is unavoidable, the number of parallel connections should be reduced as much as possible.

Key words

heat transfer / numerical simulation / packed beds / cold storage / aspect ratio

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Sun Xiao, Luo Zhibin, Cai Chunrong, Zhu Guangtao, Pei Aiguo. STUDY ON COLD STORAGE CHARACTERISTICS OF PACKED BED REGENERATOR WITH DIFFERENT ASPECT RATIO[J]. Acta Energiae Solaris Sinica. 2024, 45(10): 745-751 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0971

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