TY - JOUR
T1 - Effect of branching level on the performance of constructal theory based Y-shaped liquid cooling heat sink
AU - Lu, Zhihao
AU - Zhang, Kai
AU - Liu, Jinxiang
AU - Li, Fei
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2020/3/5
Y1 - 2020/3/5
N2 - Most of heat in data centers is released from electronic chips in servers. Thus, it is more effective to mitigate the heat from electronic chips directly. Furthermore, the cooling load as well as the energy consumption of air conditionings will also be significantly decreased account for the rapid heat removal from electronic chips. The Y-shaped liquid cooling heat sink (YLCHS) has been demonstrated as an effective way to mitigate the heat from electronic chips with specified flow channels. To further optimize the structure of YLCHS, the effect of branching level on the cooling performance of YLCHS based on constructal theory is studied in this paper. By comparing the cooling performances for YLCHSs with 1 to 4 branching level, the relationship between peak temperature and branching level is modelled. The results show that the peak temperature and average temperature of YLCHS are reduced by 28.8% and 13.5% while the number of branching level is increased from 1 to 4, however, the increases of pressure loss for these YLCHSs are lower than 0.04 kPa. Furthermore, the optimal branching level for the proposed YLCHS is determined at 4 by considering the improvement on the cooling performance and the limited size of heat sink.
AB - Most of heat in data centers is released from electronic chips in servers. Thus, it is more effective to mitigate the heat from electronic chips directly. Furthermore, the cooling load as well as the energy consumption of air conditionings will also be significantly decreased account for the rapid heat removal from electronic chips. The Y-shaped liquid cooling heat sink (YLCHS) has been demonstrated as an effective way to mitigate the heat from electronic chips with specified flow channels. To further optimize the structure of YLCHS, the effect of branching level on the cooling performance of YLCHS based on constructal theory is studied in this paper. By comparing the cooling performances for YLCHSs with 1 to 4 branching level, the relationship between peak temperature and branching level is modelled. The results show that the peak temperature and average temperature of YLCHS are reduced by 28.8% and 13.5% while the number of branching level is increased from 1 to 4, however, the increases of pressure loss for these YLCHSs are lower than 0.04 kPa. Furthermore, the optimal branching level for the proposed YLCHS is determined at 4 by considering the improvement on the cooling performance and the limited size of heat sink.
KW - Constructal theory
KW - Electronic chip cooling
KW - Liquid cooling heat sink
KW - Y-shaped network
UR - http://www.scopus.com/inward/record.url?scp=85077112125&partnerID=8YFLogxK
U2 - 10.1016/j.applthermaleng.2019.114824
DO - 10.1016/j.applthermaleng.2019.114824
M3 - 文章
AN - SCOPUS:85077112125
SN - 1359-4311
VL - 168
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
M1 - 114824
ER -
