پیوندهای مفید
آمار
| تعداد نشریات | 21 |
| تعداد شماره‌ها | 628 |
| تعداد مقالات | 9,179 |
| تعداد مشاهده مقاله | 67,527,546 |
| تعداد دریافت فایل اصل مقاله | 8,062,165 |
A numerical investigation of heat transfer and pressure drop in a novel cylindrical heat sink with helical minichannels | ||
| Journal of Heat and Mass Transfer Research | ||
| مقاله 2، دوره 5، شماره 1 - شماره پیاپی 9، مرداد 2018، صفحه 11-26 اصل مقاله (1.05 M) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2017.11247.1159 | ||
| نویسندگان | ||
| Alireza Falahat1؛ Reza Bahoosh* 2؛ Aminreza Noghrehabadi2 | ||
| 1Department of Mechanical Engineering,Shahid Chamran University of Ahvaz,Ahvaz, Iran | ||
| 2Department of Mechanical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran | ||
| تاریخ دریافت: 15 اردیبهشت 1396، تاریخ بازنگری: 16 تیر 1396، تاریخ پذیرش: 21 تیر 1396 | ||
| چکیده | ||
| This study numerically investigated heat transfer and fluid flow characteristics in a novel cylindrical heat sink with helical minichannels for the laminar flow of fluid with temperature-dependent properties. A finite volume method was employed to obtain the solution of governing equations. The effects of helical angle, channel aspect ratio, and Reynolds number, which were regarded as main parameters, were determined. The overall performance of the heat sink was also analyzed on the basis of the thermal performance factor and the augmentation entropy generation number. Results showed that a decrease in the channel helix angle and an increase in the channel aspect ratio and Reynolds number enhance the average heat transfer coefficient and pressure drop in the heat sink. The thermal performance factor and entropy generation minimization method revealed that an aspect ratio of 1.2 enables the best heat sink performance at all helix angles. When the helix angle decreases, performance increases, especially at low aspect ratios. | ||
| کلیدواژه‌ها | ||
| Cylindrical helical minichannels heat sink؛ Thermal performance factor؛ Thermal resistance؛ Entropy Generation؛ Channel aspect ratio | ||
| مراجع | ||
|
[1]. Y. Fan, P. Seng Lee, B. Wah Chua, Investigation on the influence of edge effect on flow and temperature uniformities in cylindrical oblique-finned minichannel array, International Journal of Heat and Mass Transfer, 70, 651–663, (2014).
[2]. D.B. Tuckerman, R.F.W. Pease, High-performance heat sinking for VLSI, IEEE Electron Device Letters, 2 (5), 126-129, (1981).
[3]. W. Qu, I. Mudawar, Experimental and Numerical Study of Pressure Drop and Heat Transfer in a Single-Phase Microchannel Heat Sink, International Journal of Heat and Mass Transfer, 45(12) 2549–2565, (2002).
[4]. X.L. Xie, Z.J. Liu, Y.L. He, W.Q. Tao, Numerical study of laminar heat transfer and pressure drop characteristics in a water-cooled minichannel heat sink, Applied Thermal Engineering, 29 (1), 64–74, (2009).
[5]. Y. Sui, C.J. Teo, P.S. Lee, Y.T. Chew, C. Shu, Fluid flow and heat transfer in wavy microchannels, International Journal of Heat and Mass Transfer, 53 (13-14), 2760–2772, (2010).
[6]. H.A. Mohammed, P. Gunnasegaran, N.H. Shuaib, Influence of channel shape on the thermal and hydraulic performance of microchannel heat sink, International Communications in Heat and Mass Transfer, 38 (4), 474–480, (2011).
[7]. H.A. Mohammed, P. Gunnasegaran, N.H. Shuaib, Numerical simulation of heat transfer enhancement in wavy microchannel heat sink, International Communications in Heat and Mass Transfer, 38 (1) 63–68, (2011).
[8]. Y. J. Lee, P. S. Lee, S. K. Chou, Numerical Study of Fluid Flow and Heat Transfer in the Enhanced Microchannel With Oblique Fins, Journal of Heat Transfer, 135 (4), 041901-0419010, (2013).
[9]. L. Chai, G.D. Xia, H. S. Wang, Parametric study on thermal and hydraulic characteristics of laminar flow in microchannel heat sink with fan-shaped ribs on sidewalls– Part 1: Heat transfer, International Journal of Heat and Mass Transfer, 97, 1069–1080, (2016).
[10]. G. Xie, Y. Li, F. Zhang, B. Sunden, Analysis of micro-channel heat sinks with rectangular-shaped flow obstructions, NUMERICAL HEAT TRANSFER, 69 (4), 1–17, (2016).
[11]. X. W. Zhu, Y. H. Fu, J. Q. Zhao, L. Zhu, Three-dimensional numerical study of the laminar flow and heat transfer in a wavy-finned heat sink filled with AL2O3/ethylene glycol-water nanofluid, NUMERICAL HEAT TRANSFER, 69 (2), 1–14, (2015).
[12]. M. Bovand, S. Rashidi, J.A. Esfahani, Heat transfer enhancement and pressure drop penalty in porous solar heaters: Numerical simulations, Solar Energy, 123, 145–159, (2016).
[13]. M. Bashi, S. Rashidi, J.A. Esfahani, Exergy analysis for a plate-fin triangular duct enhanced by a porous material, Applied Thermal Engineering, 110, 1448-1461, (2017).
[14]. S. Rashidi, N. Moghadas Zade, J. Abolfazli Esfahani, Thermo-fluid performance and entropy generation analysis for a new eccentric helical screw tape insert in a 3D tube, Chemical Engineering and Processing: Process Intensification, 117, 27-37, (2017).
[15]. S. Rashidi, M. Akbarzadeh, R. Masoodi, E.M. Languri, Thermal-hydraulic and entropy generation analysis for turbulent flow inside a corrugated channel, International Journal of Heat and Mass Transfer, 109, 812-823, (2017).
[16]. C.J. Ho, L.C. Wei, Z.W. Li, An experimental investigation of forced convective cooling performance of a microchannel heat sink with Al2O3/water nanofluid, Applied Thermal Engineering, 30 (2-3), 96–103, (2010).
[17]. Y. J. Lee, P. K. Singh, P. S. Lee, Fluid flow and heat transfer investigations on enhanced microchannel heat sink using oblique fins with parametric study, International Journal of Heat and Mass Transfer, 81, 325–336, (2015).
[18]. B. Rimbault , C. T. Nguyen , N. Galanis, Experimental investigation of CuO-water nanofluid flow and heat transfer inside a microchannel heat sink, International Journal of Thermal Sciences, 84, 275-292, (2014).
[19]. H. Zirakzadeh, A.R. Mashayekh,H. Noori Bidgoli, M. Ashjaee, Exprimental investigation of heat transfer in a novel heat sink by means of alumina nanofluids, Heat Transfer Research, 43(8), 709–720, (2012).
[20]. Y.J. Lee, P.S. Lee, S.K. Chou, Enhanced Thermal Transport in Microchannel Using Oblique Fins, Journal of Heat Transfer, 134 (10), 101901, (2012).
[21]. S.M. Peyghambarzadeh, S.H. Hashemabadi, A.R. Chabi, M. Salimi, Performance of water based CuO and Al2O3 nanofluids in a Cu–Be alloy heat sink with rectangular microchannels, Energy Conversion and Management, 86, 28–38, (2014).
[22]. M. Khoshvaght-Aliabadi, F. Nozan, Water cooled corrugated minichannel heat sink for electronic devices: Effect of corrugation shape, International Communications in Heat and Mass Transfer, 76, 188–196, (2016).
[23]. Y. Fan, P. S. Lee, L.W. Jin, B. W. Chua, A simulation and experimental study of fluid flow and heat transfer on cylindrical oblique-finned heat sink, International Journal of Heat and Mass Transfer, 61 (1), 62–72, (2013).
[24]. Y. Fan, P. S. Lee, L.W. Jin, B. W. Chua, Experimental investigation on heat transfer and pressure drop of a novel cylindrical oblique fin heat sink, International Journal of Thermal Sciences, 76, 1-10, (2014).
[25]. Z. Azizi, A. Alamdari, M.R. Malayeri, Convective heat transfer of Cu–water nanofluid in a cylindrical microchannel heat sink, Energy Conversion and Management, 101, 515–524, (2015).
[26]. Z. Azizi, A. Alamdari, M.R. Malayeri, Thermal performance and friction factor of a cylindrical microchannel heat sink cooled by Cu-water nanofluid, Applied Thermal Engineering 99, 970–978, (2016).
[27]. B. Xu., K. T, Ooi., C. Mavriplis., M. E. Zaghloul, Evaluation of viscous dissipation in liquid flow in microchannels, Journal of Micromechanics and Microengineering, 13(1), 53-57,(2002).
[28]. L. Chai, G. Xia, M. Zhou, J. Li, J. Qi, Optimum thermal design of interrupted microchannel heat sink with rectangular ribs in the transverse microchambers, Applied Thermal Engineering, 51, 880–889, (2013).
[29]. Y.T. Yang, H.Sen Peng, Numerical Study of Thermal and Hydraulic Performance of Compound Heat Sink, Numerical Heat Transfer, 55 (5), 432–447, (2009).
[30]. G. Xie, Zh. Chen, B. Sunden,W. Zhang, Numerical Predictions of the Flow and Thermal Performance of Water-Cooled Single-Layer and Double-Layer Wavy Microchannel Heat Sinks, Numerical Heat Transfer, 63 (3), 201–225, (2013).
[31]. H. Wang, Zh. Chen, J. Gao, Influence of geometric parameters on flow and heat transfer performance of micro-channel heat sinks, Applied Thermal Engineering, 107, 870–879, (2016).
[32]. M. Khoshvaght-Aliabadi, A. Alizadeh, An experimental study of Cu–water nanofluid flow inside serpentine tubes with variable straight-section lengths, Experimental Thermal Fluid Science, 61, 1–11, (2015).
[33]. Y. Yue, Sh. K. Mohammadian, Y. Zhang, Analysis of performances of a manifold microchannel heat sink with nanofluids, International Journal of Thermal Sciences, 89, 305-313, (2015).
[34]. L. Chai, G.D. Xia, H.S. Wang, Parametric study on thermal and hydraulic characteristics of laminar flow in microchannel heat sink with fan-shaped ribs on sidewalls – Part 3: performance evaluation, International Journal of Heat and Mass Transfer, 97, 1091–1101, (2016).
[35]. G. D. Xai, Y.L. Zhia, Z.Z. Cui, Characteristics of entropy generation and heat transfer in a microchannel with fan-shaped reentrant cavities and internal ribs, Science China Technological Sciences, 56 (7), 1629–1635, (2013).
[36]. D.D. Ma, G.D. Xia, Y.F. Li, Y.T. Jia, J. Wang, Effects of structural parameters on fluid flow and heat transfer characteristics in microchannel with offset zigzag grooves in sidewall, International Journal of Heat and Mass Transfer, 101, 427–435, (2016).
[37]. L. Chai, G. Xia, L. Wang, M. Zhou, Z. Cui, Heat transfer enhancement in microchannel heat sinks with periodic expansion–constriction cross-sections, International Journal of Heat and Mass Transfer, 62 (1), 741-751, (2013).
| ||
|
آمار تعداد مشاهده مقاله: 1,572 تعداد دریافت فایل اصل مقاله: 555 |
||