Flow and Heat Transfer of Cu-Water Nanofluids in Grooved Microchannels

Abstract

Abstract:

This paper analyzed the fluid flow and heat transfer of Cu-water nanofluids in grooved microchanel.The velocity and temperature distribution of Cu-water nanofluids in grooved-microchannels with depth to width ratio of 0.3 and 0.5 were conducted. Besides, the heat transfer coefficients of Cu-water nanofluids and the fluid transport power factor in the arc-grooved microchannels were also investigated. The grooves strengthen convective heat transfer in the microchannels. Compared with the plate microchannels, the heat transfer of Cu-water nanofluids in arc-grooved microchannels displays different characteristics. Nanofluid concentration, fluid transport power factor and the depth to width ratio influence the heat transfer in the grooved microchannels greatly. The results herein accord with experimental data.

Key words: grooved microchannel, heat transfer, Cu-water nanofluid, transport power factor

摘要：

对铜-水纳米流体在圆弧型凹槽微通道中的传热与流动特性进行了分析。比较了不同体积分数的铜-水纳米流体在深宽比分别为0.3和0.5的凹槽微通道中的温度和速度分布,分析了体积分数和凹槽深宽比对凹槽微通道中铜-水纳米流体的传热系数和流体输运动力因子的影响。凹槽强化了微通道对流传热，与平板型微通道相比,铜-水纳米流体在圆弧型凹槽微通通内呈现出不同的传热特性。纳米流体体积分数、流体输运动力因子和凹槽深宽比对凹槽强化微通道传热影响较大。分析结果与已有的实验结果符合较好。

关键词: 凹槽微通道, 传热, 铜-水纳米流体, 输运动力因子

CLC Number:

TK124

Chen Wei, Li Yuanyuan, Lin Jun. Flow and Heat Transfer of Cu-Water Nanofluids in Grooved Microchannels[J]. China Mechanical Engineering, 2014, 25(17): 2277-2282.

陈威, 黎源源, 林俊. 凹槽微通道铜-水纳米流体传热与流动分析[J]. 中国机械工程, 2014, 25(17): 2277-2282.

References

[1]Solovitz S A,Conder T E.Flow and Thermal Investigation of a Groove-enhanced Minichannel Application[J].Journal of Thermal Science and Engineering Applications,2010,2(1):011008.
[2]Liu Y,Cui J,Jiang Y X,et al.A Numerical Study on Heat Transfer Performance of Microchannels with Different Surface Microstructures[J]. Applied Thermal Engineering,2011,31(5):921-931.
[3]Choi S U S.Enhancing Thermal Conductivity of Fluids with Nano-particles[J].Developments and Applications of Non-newtonian Flows,1995,231(66):99-103.
[4]凌智勇,朱爱军.层流状态下纳米流体的对流换热特性[J].功能材料,2010,41(6):948-951.
Ling Zhiyong,Zhu Aijun.The Convective Heat Transfer Characteristics of Nanofluids under the Laminar Flow Conditions[J]. Journal of Functional Materials,2010,41(6):948-951.
[5]Do K H,Jang S P.Effect of Nanofluids on the Thermal Performance of a Flat Micro Heat Pipe with a Rectangular Grooved Wick[J].International Journal of Heat and Mass Transfer,2010,53(9/10):2183-2192.
[6]杨卫卫,何雅玲.凹槽通道中脉动流动传质的数值研究[J].西安交通大学学报,2004,389(11):1119-1122.
Yang Weiwei,He Yaling.Numeical Study on Enhangcing Mass Transfer in Grooved Channel by Pulsating Flow[J].Journal of Xi’an Jiaotong University,2004,38(11):1120-1122.
[7]Andrew F,Ramesh N,Chandratilleke T T.Laminar Convective Heat Transfer in a Microchannel with Internal Longitudinal Fins[J].International Journal of Thermal Sciences,2009,48(10):1908-1913.
[8]Namburu P K,Das D K,Tanguturi K M, et al.Numerical Study of Turbulent Flow and Heat Transfer Characteristics of Nanofluids Considering Variable Properties[J].International Journal of Thermal Sciences,2009,48(2):290-302.
[9]李强,宣益民.纳米流体能量传递理论与应用[M].北京:科学出版社,2010.
[10]李强,宣宜民.铜-水纳米流体流动与对流换热特性[J].中国科学,2002,32(3):331-337.
Li Qiang,Xuan Yimin.Flow and Convective Heat Transfer Characteristics of Cu-water Nanofluid[J].Science in China, 2002, 32(3):331-337.

[1]	TUN Fu-Chao, TUN Bai-Hu, ZHANG Xiu-Hua. Numerical Simulation of Heat Transfer Performance of Paraffin Thermal-Sensitive Valve  [J]. J4, 201016, 21(16): 1921-1926.
[2]	WANG Fengxu, XING Zhiguang, YANG Pengpeng, LIN Jun, ZHAO Jianwen, . Study on Steady-state Heat Transfer of Soft Manipulators with Variable Stiffness Based on Low-melting-point Alloy Phase Transition [J]. China Mechanical Engineering, 2021, 32(07): 793-798.
[3]	XIONG Min;DING Xiaohong;JI Yidong;MENG Fanzhen. Hierarchy Growth Method for Optimal Design of Branching Heat Transfer Structures [J]. China Mechanical Engineering, 2019, 30(22): 2668-2674.
[4]	WEN Jun1,2;LEI Jilin1;DENG Xiwen1;WANG Dongfang1;WEN Zhigao2;LI Zhekun1. Influence Analysis of Piston Structures on Heat Transfer and Strength [J]. China Mechanical Engineering, 2019, 30(19): 2287-2293.
[5]	LI Yong1;LI Guowen2; WANG Weiming1;ZHAO Changhui1. Design of Subsonic Velocity and Airflow Temperature Controlled Wind Tunnel Test-bed [J]. China Mechanical Engineering, 2019, 30(12): 1441-1445.
[6]	LIU Zhaolun1,2;ZHANG Chunlan2;WU You2;WANG Haiyu2;LIU Bin1,2. An Incremental Bayesian Algorithm on Fault Diagnosis of Grate Coolers [J]. China Mechanical Engineering, 2019, 30(10): 1163-1171.
[7]	PENG Bin;ZHAO Shengxian;LI Yaohong. Performances of New Oil-free Scroll Compressors [J]. China Mechanical Engineering, 2018, 29(24): 2917-2924.
[8]	ZHANG Yuncun1;TIAN Mengqi2;LI Yabin3. Heat Transfer Model of Ring Forgings with Cracks Based on Transient Heat Transfer [J]. China Mechanical Engineering, 2018, 29(10): 1240-1247.
[9]	ZOU Zhongfei, HE Lin, LI Jiachun, CHEN Yuewei. Perturbation Sensitivity Analysis and Dynamic Topology Optimization for Heat Transfer Structures [J]. China Mechanical Engineering, 2017, 28(10): 1183-1190.
[10]	Zhao Jin, Ma Xiuqin, Li Meijun, Zhang Bingkun, Guo Song. Coupled Heat Transfer and Experiments of Waist Tube Radiator [J]. China Mechanical Engineering, 2016, 27(16): 2166-2171.
[11]	Zhang Yucun, Zhang Leiqiang, Fu Xianbin. Analyses of Interior Temperature Field Distribution for Hot Axial Forgings with Void [J]. China Mechanical Engineering, 2015, 26(19): 2672-2676.
[12]	Wang Qi, Xu Zhiwei. Theoretical and Experimental Study of Cooling Method for SMA Wire Actuators [J]. China Mechanical Engineering, 2015, 26(15): 2075-2080.
[13]	Gong Jinke, Tian Yinghua, Huang Zhangwei, Jia Guohai. Finite Element Analysis on Turbocharger Turbine Box Based on Coupled Heat Transfer [J]. China Mechanical Engineering, 2015, 26(10): 1345-1350,1361.
[14]	Xu Shanglong;Guo Zongkun;Qin Jie;Cai Qiyu;Hu Guangxin;Wang Weijie. Three Dimensional Numerical Simulation of Fluid Flow and Heat Transfer in Tree-shaped Microchannels [J]. China Mechanical Engineering, 2014, 25(9): 1185-1188.
[15]	Mao Cong1,2;Zou Hongfu1,2;Huang Yong1,2;Zhou Zhixiong3. Research on Heat Transfer Mechanism in Grinding Zone for MQL Surface Grinding [J]. China Mechanical Engineering, 2014, 25(6): 826-831.