The effect of 10µm microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine

S.M. Chan; K.H. Chong; Basil T. Wong

doi:10.15282/jmes.12.2.2018.17.0329

Authors

S.M. Chan Department of Mechanical Engineering, Faculty of Engineering, Computer and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93300 Kuching, Sarawak, Malaysia
K.H. Chong Department of Mechanical Engineering, Faculty of Engineering, Computer and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93300 Kuching, Sarawak, Malaysia
Basil T. Wong Department of Mechanical Engineering, Faculty of Engineering, Computer and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93300 Kuching, Sarawak, Malaysia

DOI:

https://doi.org/10.15282/jmes.12.2.2018.17.0329

Keywords:

Thermo-hydraulic; Single-phase flow; Semi-circular; Serpentine; Microchannel.

Abstract

A microchannel heat exchanger, which offers various engineering applications, such as heating, ventilation and air-conditioning, is increasingly important due to its advantages in cost reduction for material, fabrication, and physical size. The current nanotechnology impedes the fabrication of microchannel hydraulic diameter at 10 µm and below; however, with rigorous research on nanotechnology, a smaller hydraulic diameter relative to the current microchannel is anticipated. This study simulated the effect of 10 µm transitional microchannel on thermo-hydraulic performance for singlephase flow in semi-circular cross-section serpentine, in which the boundary condition for wall temperature is constant—350 K. Its results show that the Dean vortices increase with Reynolds number, leading to a heat transfer enhancement in the region of the serpentine bend. For Reynolds number of 175, the achieved heat transfer coefficient is 768673.71 kJ/m²K, which is superior to what has been reported in other literature; therefore, the study suggests that a hydraulic diameter channel of 10 µm could greatly improve the heat transfer performance. In addition, it infers the suitability of hydraulic diameter channel of 10 µm for single-phase flow in semi-circular cross-section serpentine transitional microchannel.

References

Zhang P, Yao C, Ma H, Jin N, Zhang X, Lü H, Zhao Y. Dynamic changes in gas-liquid mass transfer during Taylor flow in long serpentine square microchannels. Chemical Engineering Science. 2018;182:17–27.

Al-Neama AF, Khatir Z, Kapur N, Summers J, Thompson HM. An experimental and numerical investigation of chevron fin structures in serpentine minichannel heat sinks. International Journal of Heat and Mass Transfer. 2018;120:1213– 1228.

Al-Neama AF, Kapur N, Summers J, Thompson HM. An experimental and numerical investigation of the use of liquid flow in serpentine microchannels for microelectronics cooling. Applied Thermal Engineering. 2017;116:709–723.

Filimonov R, Sorvari J. Numerical study on the effect of cross-section orientation on fluid flow and heat transfer in a periodic serpentine triangular microchannel. Applied Thermal Engineering. 2017;125:366–376.

Imran AA, Mahmoud NS, Jaffal HM. Numerical and experimental investigation of heat transfer in liquid cooling serpentine mini-channel heat sink with different new configuration models. Thermal Science and Engineering Progress. 2018;6:128–139.

Smakulski P, Pietrowicz S. A review of the capabilities of high heat flux removal by porous materials, microchannels and spray cooling techniques. Applied Thermal Engineering. 2016;104: 636–646.

Tuckerman DB, Pease RFW. High-performance heat sinking for VLSI. IEEE Electron Device Letters. 1981;2:126–129.

Missaggia L, Walpole JN, Liau ZL, Phillips RJ. Microchannel heat sinks for two- dimensional high-power-density diode laser arrays. IEEE Journal of Quantum Electron. 1989;25:1988–1992.

Rahman MM, Gui F. Experimental measurements of fluid flow and heat transfer in microchannel cooling passage in a chip substract. Proceedings of the ASME International Electronics Packaging Conference. 1993;685–692.

Wang BX, Peng XF. Experimental investigation on liquid forced convection heat transfer through microchannels. International Journal of Heat and Mass Transfer. 1994; 37:73–82.

Peng XF, Peterson CP. Effect of thermofluid and geometrical parameters on convection of liquids through rectangular microchannels. International Journal of Heat and Mass Transfer. 1995;38:755–758.

Peng XF, Peterson GP. Convective heat transfer and flow friction for water flow in microchannel structures. International Journal of Heat and Mass Transfer. 1996;39:2599–2608.

Harms TM, Kazmierczak MJ, Gerner FM. Developing convective heat transfer in deep rectangular microchannels. International Journal of Heat and Fluid Flow. 1999;20:149–157.

Mala CM, Li DQ. Flow characteristics of water in microtubes. International Journal of Heat and Fluid Flow. 1999;20:142–148.

Lin QW, Gh MM, Li DQ. Pressure-driven water flow in trapezoidal silicon microchannels. International Journal of Heat and Mass Transfer. 2000;43:353– 364.

Ren L, Qu D, Li D. Interfacial electrokinetic effects on liquid flow in microchannels. International Journal of Heat and Mass Transfer. 2001;44:3125– 3134.

Celata GP, Cumo M, Gudlielmi M, Zummo G. Experimental investigation of hydraulic and single phase heat transfer in 0.130 mm capillary tube. Journal of Microsale Thermophysical Engineering. 2002;6:85–97.

Wu HY, Cheng P. Experimental study of convective heat transfer in silicon microchannels with different surface conditions. International Journal of Heat and Mass Transfer. 2003;46:2547–2556.

Baviere R, Ayela F, Person SL, Favre-Marinet M. An experimental study of water flow in smooth and rough rectangular micro-channels. ASME 2nd International Conference on Microchannels and Minichannels. 2004.

Hao PF, He FH, Zhu KQ. Flow characteristics in a trapezoidal silicon microchannel. Journal of Micromechanics and Microengineering. 2005;15:1362–1368.

Shen S, Xu JL, Zhou JJ, Chen Y. Flow and heat transfer in microchannels with rough wall surface. Energy Conversion and Management. 2006;47:1311–1325.

Jung JY, Kwak HY. Fluid flow and heat transfer in microchannels with rectangular cross section. International Journal of Heat and Mass Transfer. 2008;44:1041–1049.

Wibel W, Ehrhard P. Experiments on the laminar/turbulent transition of liquid flows in rectangular microchannels. Journal of Heat Transfer Engineering. 2009;30:70–77.

Mirmanto DBR, Kenning JS, Karayiannis TG. Pressure drop and heat transfer characteristics for single-phase developing flow of water in rectangular microchannels. Journal of Physics:Conference Series. 2012;395:1–14.

Kottasamy A, Kadirgama K, Annamalai K, Mohanesan K, Ramasamy D, Noor MM. et al. Titanium oxide with nanocoolant for heat exchanger application. Journal of Mechanical Engineering and Sciences. 2017;11:2834–2844.

Kandlikar SG, Grande WJ. Evolution of Microchannel Flow Passages- Thermohydraulic Performance and Fabrication Technology. Journal of Heat Transfer Engineering. 2003;24:3–17.

Maina JN, West JB. Thin and strong! The bioengineering dilemma in the structural and functional design of the blood–gas barrier. Physiological Reviews. 2005;85;811–844.

Rosaguti NR, Fletcher DF, Haynes BS. Laminar flow and heat transfer in a periodic serpentine channel with semi-circular cross-section. International Journal of Heat and Mass Transfer. 2006;47:2912–2923.

Fourie JH. Thermal performance of periodic serpentine channels with semi- circular and triangular cross-sections. Potchesfstroom: North-West University; 2011.

Venter J. The optimal hydraulic diameter of semicircular and triangular shaped channels for compact heat exchangers. Potchesfstroom: North-West University;2010.

Rosaguti NR, Fletcher DF, Haynes BS. Low-Reynolds number heat transfer enhancement in sinusoidal channels. Chemical Engineering Science. 2007;62:694–702.

Geyer PE, Fletcher DF, Haynes BS. Laminar flow and heat transfer in a periodic trapezoidal channel with semi-circular cross-section. International Journal of Heat and Mass Transfer. 2007;50:3471–3480.

Liu JT, Peng XF, Yan WM. Numerical study of fluid flow and heat transfer in microchannel cooling passages. International Journal of Heat and Mass Transfer. 2007;50:1855–1864.