微肋阵通道流动沸腾换热与压降特性

doi:10.11949/j.issn.0438-1157.20180583

化工学报 ›› 2018, Vol. 69 ›› Issue (12): 4979-4989.DOI: 10.11949/j.issn.0438-1157.20180583

微肋阵通道流动沸腾换热与压降特性

杜保周^1,2, 李慧君², 郭保仓², 孔令健¹, 刘志刚¹

1. 山东省科学院能源研究所, 山东济南 250014;
2. 华北电力大学能源动力与机械工程学院, 河北保定 071003

收稿日期:2018-05-30 修回日期:2018-08-18 出版日期:2018-12-05 发布日期:2018-12-05
通讯作者: 刘志刚
基金资助:
山东省自然科学基金项目（ZR2016YL005）。

Flow boiling heat transfer and pressure drop characteristics in micro channel with micro pin fins

DU Baozhou^1,2, LI Huijun², GUO Baocang², KONG Lingjian¹, LIU Zhigang¹

1. Energy Research Institute of Shandong Academy of Sciences, Jinan 250014, Shandong, China;
2. School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, Hebei, China

Received:2018-05-30 Revised:2018-08-18 Online:2018-12-05 Published:2018-12-05
Supported by:
supported by the Natural Science Foundation of Shandong Province(ZR2016YL005).

摘要/Abstract

摘要：

为探究不同截面微肋阵通道内的流动沸腾换热机理，以去离子水为工质，在质量流速为96～224 kg·m^-2·s^-1，有效热通量为10～240 W·cm^-2的范围内，对圆形、菱形、椭圆形微肋阵通道内流动沸腾换热及压降特性进行了实验研究，同时对微通道内流动沸腾的不稳定性进行了分析。通过实验发现：在低热通量下，核态沸腾占主导地位，而在中高热通量下，薄膜蒸发对流换热为主要沸腾机制；沸腾传热系数随着热通量和出口干度的增加而减小，两相压降随着热通量和出口干度的增加而增大；微肋阵肋间形成的次级通道宽度对换热和两相压降有很大的影响，次级通道越宽，气泡越容易脱离，换热效果越好，压降越大；微肋的存在抑制了气泡的反向流动，减小了沸腾不稳定性，推迟了临界热通量的发生，椭圆形微肋阵通道的流动沸腾稳定性最好，而圆形微肋阵通道的流动沸腾稳定性最差。

关键词: 微通道, 微肋阵, 沸腾, 传热, 压降, 不稳定性

Abstract:

To explore the flow boiling heat transfer mechanism in the micro-rib array channel with different cross-sections, the deionized water is used as the working medium, the mass flow rate is 96-224 kg·m^-2·s^-1, and the effective heat flux density is 10-240 W·cm^-2. The instability of flow boiling in microchannel was also analyzed in the experiment. The experimental results showed that the dominant heat transfer mechanism is nucleate boiling in the low heat flux region, while it is convective heat transfer of a thin liquid film evaporation in the medium and high heat flux regions. With the increase of heat flux and outlet quality, the boiling heat transfer coefficient decreases, but the two-phase pressure drop increases. The secondary channel width between the micro pin fins has a great influence on the heat transfer and the two-phase pressure drop. The wider the secondary channel is, the easier the bubble is to break out, the better the heat transfer effect, and the greater the pressure drop. The existence of micro fin inhibits the reverse flow of bubbles, which reduces the flow boiling instability and delays the occurrence of critical heat flux. The flow boiling stability of the elliptical micro pin fins is the best, while the flow boiling stability of the circular micro pin fins is the worst.

Key words: microchannel, micro pin fins, boiling, heat transfer, pressure drop, instability

中图分类号:

TK124

杜保周, 李慧君, 郭保仓, 孔令健, 刘志刚. 微肋阵通道流动沸腾换热与压降特性[J]. 化工学报, 2018, 69(12): 4979-4989.

DU Baozhou, LI Huijun, GUO Baocang, KONG Lingjian, LIU Zhigang. Flow boiling heat transfer and pressure drop characteristics in micro channel with micro pin fins[J]. CIESC Journal, 2018, 69(12): 4979-4989.

参考文献 29

[1]	魏进家, 张永海. 柱状微结构表面强化沸腾换热研究综述[J]. 化工学报, 2016, 67(1):97-107. WEI J J, ZHANG Y H. Review of enhanced boiling heat transfer over micro-pin-finned surfaces[J]. CIESC Journal, 2016, 67(1):97-107.
[2]	过增元. 当前国际传热界的热点——微电子器件的冷却[J].中国科学基金, 1988, 2(7):20-25. GUO Z Y. Hot subject of the international heat transfer community-microelectronic cooling[J]. China Academic Journal Electronic Publishing House, 1988, 2(7):20-25.
[3]	过增元. 国际传热研究前沿——微细尺度传热[J]. 力学进展, 2000, 30(1):1-6. GUO Z Y.Frontier of heat transfer -microscale heat transfer[J]. Advances in Mechanics, 2000, 30(1):1-6.
[4]	刘益才. 电子芯片冷却技术发展综述[J]. 电子器件, 2006, 29(1):296-300. LIU Y C. Recent development and prospects of the electronic apparatus cooling[J]. Chinese Journal of Electron Devices, 2006, 29(1):296-300.
[5]	KHAN M G, FARTAJ A. A review on microchannel heat exchangers and potential applications[J]. International Journal of Energy Research, 2011, 35(7):553-582.
[6]	KRISHNAMURTHY S, PELES Y. Cross flow boiling in micro pin fin heat sinks[C]//ASME 2007 International Mechanical Engineering Congress and Exposition. Seattle, Washington, USA, 2007:11-15.
[7]	KRISHNAMURTHY S, PELES Y. Flow boiling heat transfer on micro pin fins entrenched in a microchannel[J]. J. Heat Transfer, 2010, 132(4):197-204.
[8]	KOSAR A. Exergy analysis of second generation micro heat sinks under flow boiling conditions[C]//ASME 20093rd International Conference on Energy Sustainability collocated with the Heat Transfer and Inter PACK 09 Conferences. San Francisco, California, USA, 2009:19-23.
[9]	KOSAR A. Pressure drop across micro-pin heat sinks under unstable boiling conditions[J]. International Journal of Thermal Sciences, 2010, 49(7):1253-1263.
[10]	MCNEIL D A. A comparison of flow boiling heat-transfer in in-line mini pin fin and plane channel flows[J]. Applied Thermal Engineering, 2010, 30(16):2412-2425.
[11]	MCNEIL D A. An investigation into flow boiling heat transfer and pressure drop in a pin-finned heat sink[J]. International Journal of Multiphase Flow, 2014, 67:65-84.
[12]	REESER A, BAR-COHEN A, HETSRONI G. High quality flow boiling heat transfer and pressure drop in micro gap pin fin arrays[J]. International Journal of Heat and Mass Transfer, 2014, 78:974-985.
[13]	邓聪, 罗小平, 冯振飞, 等. 矩形微通道内制冷剂流动沸腾传热特性及可视化研究[J]. 制冷学报, 2015, 36(6):1-5. DENG C, LUO X P, FENG Z F, et al. Research on boiling heat transfer characteristics and visualization of refrigerant in rectangular microchannels[J]. Journal of Refrigeration, 2015, 36(6):1-5.
[14]	苏博, 罗小平. 竖直矩形微槽道内的饱和沸腾换热研究[J]. 兰州大学学报, 2008, 44:281-284. SU B, LUO X P. Heat transfer mechanism of saturated boiling flow in the veridical rectangular microchannels[J]. Journal of Lanzhou University, 2008, 44:281-284.
[15]	ZHOU J Y, LUO X P, FENG Z F, et al. Saturated flow boiling heat transfer investigation for nanofluid in minichannel[J]. Experimental Thermal and Fluid Science, 2017, 85:189-200.
[16]	WEI J J, ZHAO J F, XUE Y F. Boiling heat transfer enhancement by using micro-pin-finned surface for electronics cooling[J]. Microgravity Sci. Technol., 2009, 21:S159-S173.
[17]	QU W L, SIU-HO A. Experimental study of saturated flow boiling heat transfer in an array of staggered micro-pin-fins[J]. International Journal of Heat and Mass Transfer, 2009, 52:1853-1863.
[18]	KOSAR A, PELES Y. Boiling heat transfer in a hydrofoil-based micro pin fin heat sink[J]. International Journal of Heat and Mass Transfer, 2007, 50:1018-1034.
[19]	GUO D, WEI J J, ZHANG Y H. Enhanced flow boiling heat transfer with jet impingement on micro-pin-finned surfaces[J]. Applied Thermal Engineering, 2011, 31:2042-2051.
[20]	DENG D X, CHEN R X, HE H, et al. Effects of heat flux, mass flux and channel size on flow boiling performance of reentrant porous microchannels[J]. Experimental Thermal and Fluid Science, 2015, 64:13-22.
[21]	谢鸣宇, 罗小平, 胡丽琴. 微通道内R22制冷剂流动沸腾的压降特性[J]. 化学工程, 2016, 44(1):38-42. XIE M Y, LUO X P, HU L Q. Pressure drop of flow boiling R22 in microchannels[J]. Chemical Engineer (China), 2016, 44(1):38-42.
[22]	QU W L, SIU-HO A. Measurement and prediction of pressure drop in a two-phase micro-pin-fin heat sink[J]. International Journal of Heat and Mass Transfer, 2009, 52:5173-5184.
[23]	PRAJAPATI Y K, PATHAK M, KALEEM K M. A comparative study of flow boiling heat transfer in three different configurations of microchannels[J]. International Journal of Heat and Mass Transfer, 2015, 85:711-722.
[24]	PRAJAPATI Y K, PATHAK M, KALEEM K M. Transient heat transfer characteristics of segmented finned microchannels[J]. Experimental Thermal and Fluid Science, 2016, 79:134-142.
[25]	LAW M, LEE P S. Effects of varying secondary channel widths on flow boiling heat transfer and pressure characteristics in oblique-finned microchannels[J]. International Journal of Heat and Mass Transfer, 2016, 101:313-326.
[26]	杨世铭, 陶文铨. 传热学[M]. 4版, 北京:高等教育出版社, 2006:5-7. YANG S M, TAO W Q. Heat Transfer[M]. 4th ed. Beijing:Higher Education Press, 2006:5-7.
[27]	MOFFAT R J. Describing the uncertainties in experimental results[J]. Exp. Thermal Fluid Sci., 1988, 1:3-17.
[28]	QU W L, MUDAWAR I. Measurement and correlation of critical heat flux in two-phase micro-channel heat sinks[J]. International Journal of Heat and Mass Transfer, 2004, 47:2045-2059.
[29]	KOSAR A, KUO C J, PELES Y. Suppression of boiling flow oscillations in parallel microchannels by inlet restrictors[J]. Journal of Heat Transfer, 2006, 128:251-260.

微肋阵通道流动沸腾换热与压降特性

Flow boiling heat transfer and pressure drop characteristics in micro channel with micro pin fins

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