Study the micro heat sink with pin fins and different coolants: a comparative study

  • Authors

    • Mushtaq Ismael Hasan Mechanical Engineering Department, Engineering College, Thi-Qar University , Al-Nasiriya, Iraq
    • Dhay Mohammed Muter
    2019-02-26
    https://doi.org/10.14419/ijet.v7i4.25753
  • .

  • Abstract

    This research aims to study numerically the effect of different cooling fluids (pure fluids, Nanofluids, and Microencapsulated phase change materials suspensions) on the cooling performance of micro pin fin heat sink with different types of fins (square, triangular and circular). Three types of Nanofluids (Al2O3-water, Cu-water, TiO2-water), three types of microencapsulated phase change materials suspensions (MEPCMS) are (RT44-water, paraffin wax water, n-acted-water) and three pure fluids) Water, Oil, Ethylene Glycol) were used with constant heat flux (100  ) applied on the base of the heat sink. The volumetric concentrations of Nanofluids and MEPCM suspensions are (1%, 3%, and 5%) and (100 to 900) is the range of Reynolds number used in this study. A finite volume method (FVM) is used to find solutions of governor equations and boundary conditions. The results showed that using of different types of Nanofluids and MEPCM suspension lead to enhance the cooling performance of micro pin fin heat sink (MPFCHS) since it leads to increase the heat transfer 79.6% compared with pure fluids. The heat transfer in (MPFHS) for MEPCMS suspensions is higher than that for Nanofluids. However, the performance of heat sink increased with increases the concentration of Nanofluids and MEPCMS.


     

  • References

    1. [1] Shaeri M., Yaghoubi, "Numerical analysis of turbulent convec-tion heat transfer from an array of perforated fins", Int. J. of heat and fluid flow, 30, pp 218-228, (2009). https://doi.org/10.1016/j.ijheatfluidflow.2008.12.011.

      [2] Liu, Liu D., Xu S., Chen Y., "Experimental study on liquid flow and heat transfer in micro square pin fin heat sink", Int. J. of Heat and Mass Transfer, 54, pp 5602-5611, 2011. https://doi.org/10.1016/j.ijheatmasstransfer.2011.07.013.

      [3] Mohammed H.A., Gunnasegaran P., Shuaib N.H., " The impact of various nanofluid types on triangular microchannel heat sink cooling performance", Int. Communication in Heat and Mass Transfer, 38, pp. 767-773, 2011. https://doi.org/10.1016/j.icheatmasstransfer.2011.03.024.

      [4] Mushtaq I. Hasan.†Study of micro-channel heat sink perfor-mance with expanded micro-channels and nanofluidsâ€, AL-Qadisiyah Journal for Engineering Sciences, Vol. 9, No. 4,2016.

      [5] Mushtaq I. Hasan and Hind L Tbena.†Enhancing the cooling performance of micro pin fin heat sink by using the phase change materials with different configurationsâ€, 2018 Interna-tional Conference on Advances in Sustainable Engineering and Applications (ICASEA), Wasit University, Kut, Iraq.

      [6] S. Sabbaghi S., Mehravar S.†Effect of Using Nano Encapsu-lated Phase Change Material on Thermal Performance of Micro Heat Sinkâ€, Int. J. Nanosci. Nanotechnol., Vol. 11, No. 1, March (2015), pp. 33-38.

      [7] Sohel M.R., Khaleduzzaman S.S., Saidur R., Hepbasli A., Sabri M. and Mahbubul I.M. “An experimental investigation of heat transfer enhancement of a minichannel heat sink using Al2O3–H2O nanofluid†International Journal of Heat and Mass Transfer 74 (2014) 164–172. https://doi.org/10.1016/j.ijheatmasstransfer.2014.03.010.

      [8] Obaid A. Kh. “Numerical investigation of laminar nanofluid flow in microchannel heat sink “. International journal of me-chanical engineering and technology (IJMET)â€.

      [9] Gunnasegaran P., Shuaib N.H., Mohammed H.A., Abdul Jalal M.F., and Sandhita E.,†Heat Transfer Enhancement in Micro-channel Heat Sink Using Nanofluidsâ€.

      [10] Ahmed kh Obaid a lbdoor†Numerical investigation Of Lam-inar Nanofluid Flow in Microchannel Heat Sinkâ€. Journal Impact Factor (2014)

      [11] Mushtaq I. Hasan, Hind L Tbena.†Numerical investigation of the microchannel heat sink with MEPCM suspension with a different type of PCMâ€. AL-Qadisiyah Journal for Engineering Sciences, Vol. 11, No. 1 ISSN: 1998-4456.

      [12] Mushtaq I. Hasan “Numerical investigation of counter flow microchannel heat exchanger with MEPCM suspensionâ€. Ap-plied Thermal Engineering 31 (2011) 1068e1075.

      [13] Mushtaq I. Hasan, Hind L Tbena.†Numerical investigation of the micro-channel heat sink with MEPCM suspension with a different type of PCMâ€. AL-Qadisiyah Journal for Engineering Sciences, Vol. 11, No. 1 ISSN: 1998-4456.

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  • How to Cite

    Ismael Hasan, M., & Mohammed Muter, D. (2019). Study the micro heat sink with pin fins and different coolants: a comparative study. International Journal of Engineering & Technology, 7(4), 4856-4865. https://doi.org/10.14419/ijet.v7i4.25753