Effect of tip clearance on the cooling performance of a microchannel heat sink

被引：60
|
作者：
Min, JY [1 ]
Jang, SP [1 ]
Kim, SJ [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mech Engn, Taejon 305701, South Korea
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2004年 / 47卷 / 05期
关键词：
microchannel heat sink; tip clearance; thermal resistance; pumping power condition;
D O I：
10.1016/j.ijheatmasstransfer.2003.08.020
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this paper, the effect of tip clearance on the cooling performance of the microchannel heat sink is presented under the fixed pumping power condition. The thermal resistance of a microchannel heat sink is defined for evaluating its cooling performance. The effect of tip clearance is numerically investigated by increasing tip clearance from zero under the fixed pumping power condition. From the numerical results, the optimized tip clearance is determined, for which the thermal resistance has a minimum value. Finally, we show that the presence of tip clearance can improve the cooling performance of a microchannel heat sink when tip clearance is smaller than a channel width. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1099 / 1103
页数：5
相关论文
共 50 条
  • [41] EFFECTS OF HORIZONTAL/VERTICAL FIN TIP GAPS ON MICROCHANNEL HEAT SINKS PERFORMANCE IN ELECTRONIC COOLING
    Tan, H. J. Tony
    Abdullah, M. Z.
    ISI BILIMI VE TEKNIGI DERGISI-JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY, 2013, 33 (02) : 23 - 34
  • [42] Thermal performance of the multilayered honeycomb microchannel heat sink
    Liu, Yonglu
    Luo, Xiaobing
    Liu, Wei
    Huang, Zhifeng
    ICEET: 2009 INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT TECHNOLOGY, VOL 1, PROCEEDINGS, 2009, : 487 - 490
  • [43] Geometric optimization of pin fins for enhanced cooling in a microchannel heat sink
    Ismail, Omar A.
    Ali, Ahmed M.
    Hassan, Muhammed A.
    Gamea, Osama
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2023, 190
  • [44] On the assessment of the thermal performance of microchannel heat sink with nanofluid
    Ho, C. J.
    Peng, Jian-Kai
    Yang, Tien-Fu
    Rashidi, Saman
    Yan, Wei-Mon
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2023, 201
  • [45] Performance Analysis of Heat Sink with Different Microchannel Orientations
    Jadhav, Subhash, V
    Kale, Sachin M.
    Kashid, Dattatray T.
    Kakade, Sunil S.
    Gavali, Sachin R.
    Shinde, Subhash D.
    TECHNO-SOCIETAL 2018: PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES FOR SOCIETAL APPLICATIONS - VOL 2, 2020, : 367 - 376
  • [46] PERFORMANCE OF A MULTI-STACK MICROCHANNEL HEAT SINK
    Sharif, Nik Mohamad
    Ghazali, Normah Mohd
    JURNAL TEKNOLOGI, 2016, 78 (10-2): : 61 - 68
  • [47] Channel cross section effect on heat transfer performance of oblique finned microchannel heat sink
    Vinoth, R.
    Kumar, D. Senthil
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2017, 87 : 270 - 276
  • [48] Performance analysis of microchannel heat sink with ribbed pinfins
    Alam, Mahmood
    Khan, Mohammad Nawaz
    Ansari, Danish
    Rasheed, Kamran
    Bharti, Prem Kumar
    Dwivedi, Abhishek
    INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2024, 109
  • [49] Optimization and Design of a Multipass Branching Microchannel Heat Sink for Electronics Cooling
    Dede, Ercan M.
    JOURNAL OF ELECTRONIC PACKAGING, 2012, 134 (04)
  • [50] Analysis of microchannel heat sink performance using nanofluids
    Chein, RY
    Huang, GM
    APPLIED THERMAL ENGINEERING, 2005, 25 (17-18) : 3104 - 3114
12345