Experimental study on thermal performance of heat sinks: the effect of hydraulic diameter and geometric shape

被引:0
作者
M. Marzougui
M. Hammami
R. Ben Maad
机构
[1] University Tunis El-Manar,Laboratory of Energetic and the Thermal and Mass Transfer (LETTM), Faculty of Sciences Tunis
来源
Heat and Mass Transfer | 2016年 / 52卷
关键词
Heat Transfer; Heat Transfer Coefficient; Heat Exchanger; Nusselt Number; Heat Sink;
D O I
暂无
中图分类号
学科分类号
摘要
The main purpose of this study is focused on experimental investigation of cooling performance of various minichannel designs. The hydraulic dimension of one of the heat sink is 3 mm while that of the other is 2 mm. Deionised water was used as the coolant for studies conducted in both the heat sinks. Tests were done for a wide range of flow rates (0.7 l–9 l h−1) and heat inputs (5–40 kW/m2). Irrespective of the hydraulic diameter and the geometric configuration, profits and boundaries of each channel shape are analyzed and discussed in the clarity of experimental data. The total thermal resistance and the average heat transfer coefficient are compared for the various channels inspected.
引用
收藏
页码:2091 / 2100
页数:9
相关论文
共 79 条
[11]  
Chun K(1996)Convective heat transfer and flow friction for water flow in microchannel structures Int J Heat Mass Transf 39 2599-2608
[12]  
Rosa P(2010)Experiments on the transient heat transfer of minichannel heat sink under high heat flux density in an enclosed loop Exp Therm Fluid Sci 34 1409-1414
[13]  
Karayiannis TG(2011)Comparisons of the heat transfer and pressure drop of the microchannel and mini channel heat exchangers Int J Heat Mass Transf 47 1311-1322
[14]  
Collins MW(2011)Axial conduction in single-phase simultaneously developing fl ow in a rectangular minichannel array Int J Therm Sci 50 1001-1012
[15]  
Aminossadati SM(2007)Heat transfer and pressure drop correlations of microchannel heat exchanger with S-shaped and zigzag fins for carbon dioxide cycles Exp Therm Fluid Sci 32 560-570
[16]  
Raisi A(2014)Investigation on convective heat transfer characteristics of single phase liquid flow in multi-port micro-channel tubes Int J Heat Mass Transf 70 114-118
[17]  
Ghasemi B(2010)Fluid flow and heat transfer in wavy microchannels Int J Heat Mass Transf 53 2760-2772
[18]  
Rahman MM(2011)Convective heat transfer of non-Newtonian nanofluids through a uniformly heated circular tube Int J Therm Sci 50 525-531
[19]  
Gui FJ(1953)Describing uncertainties in single-sample experiments Mech Eng 75 3-1352
[20]  
Wu HY(2009)Fluid flow and convective heat transfer in flat microchannels Int J Heat Mass Transf 52 1337-411