Optimization of Convective Heat Transfer in Microchannels Equipped by Porous Ribs

被引:1
|
作者
Rostami, Javad [1 ]
机构
[1] Razi Univ, Fac Engn, Dept Mech Engn, POB 6714414971, Kermanshah, Iran
关键词
Microchannel; Rib; Porous medium; Optimum state; THERMAL PERFORMANCE; FORCED-CONVECTION; NANOFLUID FLOW; SLIP VELOCITY; PERMEABILITY; CHANNEL; DESIGN; SINKS;
D O I
10.1007/s11242-021-01727-7
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
One methods of cooling electronic components is embedding microchannels in these devices. In these microchannels, the rate of heat transfer can be increased by making changes in their geometry. In this paper, the use of porous ribs on the microchannel wall to increase the heat transfer rate has been studied. For this purpose, the governing equations including continuity, momentum and energy based on Fortchimer-Brinkman-Darcy equations are solved numerically using a control volume method. The velocity field is solved using the SIMPLE method. The periodic boundary condition is applied for the inlet and outlet of the channel and the constant heat flux boundary condition is applied on the walls. The obtained results are compared to the analytical results and a good agreement is observed. Two types of arrangements are considered for the ribs. For both types, the results show an increase in pressure drop and heat transfer rate in the presence of the ribs compared to simple channels. The main purpose of this study is to find the optimum height of ribs for both arrangements. In the first type of arrangement, the ratio of rib height to microchannel height is 0.167 or 0.292 depend on the Reynolds number for the optimal state, and for the second type of arrangement, is 0.167.
引用
收藏
页码:439 / 468
页数:30
相关论文
共 50 条
  • [1] Optimization of Convective Heat Transfer in Microchannels Equipped by Porous Ribs
    Javad Rostami
    [J]. Transport in Porous Media, 2022, 141 : 439 - 468
  • [2] Heat transfer and flow characteristics of microchannels with solid and porous ribs
    Li, Fei
    Ma, Qingming
    Xin, Gongming
    Zhang, Jingchao
    Wang, Xinyu
    [J]. APPLIED THERMAL ENGINEERING, 2020, 178
  • [3] CONVECTIVE HEAT-TRANSFER IN MICROCHANNELS
    SAMALAM, VK
    [J]. JOURNAL OF ELECTRONIC MATERIALS, 1989, 18 (05) : 611 - 617
  • [4] Improvement of flow and heat transfer performance of microchannels with different ribs using topology optimization
    Hu, Jiahao
    Chen, Chaowei
    Wang, Xinyu
    Xin, Gongming
    Wang, Man
    [J]. APPLIED THERMAL ENGINEERING, 2024, 244
  • [5] Convective heat transfer in a channel with perforated ribs
    Buchlin, JM
    [J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2002, 41 (04) : 332 - 340
  • [6] Multiobjective Optimization of Microchannels with Experimental Convective Heat Transfer Coefficient of Liquid Ammonia
    Mohd-Ghazali, Normah
    Jong-Taek, Oh
    Chien, Nuyen Ba
    Chi, Kwang-Il
    Zolpakar, Nor Atiqah
    Ahmad, Robiah
    [J]. MODERN ADVANCES IN APPLIED INTELLIGENCE, IEA/AIE 2014, PT I, 2014, 8481 : 470 - 478
  • [7] Forced convective heat transfer of nanofluids in microchannels
    Jung, Jung-Yeul
    Oh, Hoo-Suk
    Kwak, Ho-Young
    [J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2009, 52 (1-2) : 466 - 472
  • [8] Convective heat transfer in diverging and converging microchannels
    Duryodhan, V. S.
    Singh, Abhimanyu
    Singh, S. G.
    Agrawal, Amit
    [J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2015, 80 : 424 - 438
  • [9] Heat transfer enhancement in microchannels using ribs and secondary flows
    Paramanandam, Karthikeyan
    Venkatachalapathy, S.
    Srinivasan, Balamurugan
    [J]. INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2022, 32 (07) : 2299 - 2319
  • [10] Convective heat transfer in channels with high wall ribs
    Konoplev, A. A.
    Aleksanyan, G. G.
    Rytov, B. L.
    Berlin, Al. Al.
    [J]. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING, 2007, 41 (05) : 526 - 532