Experimental Research and Performance Analysis of a Phase-change Cold Thermal Energy Storage Unit for Emergency Cooling in Air-cooled Modular Data Centers
HUANG BIN, ZHENG ZI, LU GAOFENG, et al. Experimental Research and Performance Analysis of a Phase-change Cold Thermal Energy Storage Unit for Emergency Cooling in Air-cooled Modular Data Centers. [J]. Journal of refrigeration, 2022, 43(6).
HUANG BIN, ZHENG ZI, LU GAOFENG, et al. Experimental Research and Performance Analysis of a Phase-change Cold Thermal Energy Storage Unit for Emergency Cooling in Air-cooled Modular Data Centers. [J]. Journal of refrigeration, 2022, 43(6). DOI: 10.3969/j.issn.0253-4339.2022.06.041.
An approach based on phase-change cold thermal energy storage is proposed for the emergency cooling of an air-cooled modular data center to improve its operational reliability. An experimental setup was built for the cold thermal energy storage unit. The influence of various inlet temperatures on the charging and discharging process of the cold thermal energy storage unit was investigated. In addition
sensitivity analysis was performed on the length
height
spacings of the arcuate fins
and spacings of cold thermal energy storage plates in the unit. The results demonstrate that the experimental cold thermal energy storage unit can meet the emergency cooling demand for at least 5 min. The height of the arcuate fins indicated the greatest influence on the comprehensive heat transfer performance
followed by the fin length. The spacings of the fins and cold thermal energy storage plates have a trivial effect. When the fin height of the experimental cold thermal energy storage unit was reduced from 2.0 mm to 1.5 mm
the comprehensive heat transfer performance is improved by 57%.
关键词
数据中心应急供冷相变蓄冷强化传热
Keywords
data centeremergency coolingphase-change cold thermal energy storageheat transfer enhancement