Open AccessA numerical study on the thermal storage properties of packer bed under different arrangements of phase change material capsules
Author(s) -
Zhongbin Zhang,
Cong Yu,
Zhongqiu Ci,
Lihua Cao
Publication year - 2022
Publication title -
thermal science/thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci200813274z
Subject(s) - thermal energy storage , materials science , pressure drop , thermal , sphere packing , phase change material , phase change , atomic packing factor , packed bed , exergy efficiency , exergy , mechanics , composite material , thermodynamics , chemical engineering , chemistry , engineering , physics , crystallography
To evaluate the thermal storage properties of packer bed under different arrangements o phase change material capsules, three packing models (strip packing model, in-line packing model and disordered packing model) are developed. The index of thermal storage properties for packer bed such as exergy efficiency, energy efficiency, pressure drop, charging time, temperature uniformity, and thermal storage capacity is studied. The results show that the uniformity of the temperature field of the orderly packing model is obviously better than that of the disorderly ones. In addition, the in-line packing model has obvious advantages on the energy efficiency and the thermal storage capacity compared with the strip packing model. The strip packing model has the highest exergy efficiency, but it has a high pressure drop.