Investigation of the Temperature Fluctuation of Single-Phase Fluid Based Microchannel Heat Sink

被引：6
|
作者：
Wang, Tao [1 ,2 ]
Wang, Jiejun [1 ,2 ]
He, Jian [1 ,2 ]
Wu, Chuangui [1 ,2 ]
Luo, Wenbo [1 ,2 ]
Shuai, Yao [1 ,2 ]
Zhang, Wanli [1 ,2 ]
Lee, Chengkuo [3 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, 2006 Xiyuan Ave, Chengdu 611731, Sichuan, Peoples R China
[2] Univ Elect Sci & Technol China, State Key Lab Elect Thin Film & Integrated Device, 2006 Xiyuan Ave, Chengdu 611731, Sichuan, Peoples R China
[3] Natl Univ Singapore, Dept Elect & Comp Engn, 4 Engn Dr 3, Singapore 117583, Singapore
来源：
SENSORS | 2018年 / 18卷 / 05期
基金：
中国国家自然科学基金;
关键词：
single-phase microchannel heat sink; temperature fluctuation; thin film temperature sensors; microfluidics; temperature gradient; FLOW BOILING INSTABILITIES; 2-PHASE FLOW; ENHANCEMENT; FABRICATION; WATER;
D O I：
10.3390/s18051498
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The temperature fluctuation in a single-phase microchannel heat sink (MCHS) is investigated using the integrated temperature sensors with deionized water as the coolant. Results show that the temperature fluctuation in single phase is not negligible. The causes of the temperature fluctuation are revealed based on both simulation and experiment. It is found that the inlet temperature fluctuation and the gas bubbles separated out from coolant are the main causes. The effect of the inlet temperature fluctuation is global, where the temperatures at different locations change simultaneously. Meanwhile, the gas bubble effect is localized where the temperature changes at different locations are not synchronized. In addition, the relation between temperature fluctuation and temperature gradient is established. The temperature fluctuation increases with the temperature gradient accordingly.
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收藏
页数：11
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