张伟,王照亮,徐明海
ZHANG Wei,WANG Zhao-liang,XU Ming-hai(College of Architecture & Storage Engineering

• 1:中国石油大学

摘要(Abstract)：

在闭式循环喷雾冷却试验系统上,以蒸馏水为工质,研究了喷雾流量、表面结构对喷雾冷却换热性能的影响。从对流换热和蒸发换热比例关系的角度,对试验数据进行了整理。结果表明,热流密度、换热系数、对流热流密度均随表面温度和流量的增加而增加;但蒸发换热份额却随表面温度的升高和流量的降低而增加。槽面强化换热的机理在于其较高的蒸发换热能力,但流量越大强化换热效果愈弱。分别对光面和槽面的数据进行了无量纲拟合,得到了各自反映蒸发换热特性的无量纲准则方程,可方便用于工程设计。
With water as the working fluid,experiments on evaporative heat transfer characteristic of spray cooling were performed in a closed loop system.Through changing the flow of spray and surface structure,the relationship between convective and evaporative heat transfer was discovered at first time.Test results indicated the heat flux,the heat transfer coefficient and the convective heat flux increased with an increase of surface temperature and the flow of spray,while the ratio of evaporative heat transfer grew when surface temperature increased and the flow of spray decreased.The grooved surface had higher heat transfer ability than the smooth surface due to its better evaporative heat transfer characteristics,but the bigger the flow of spray was,the smaller the consequent of enhanced heat transfer was.Non-dimensional criterion equations about two surfaces were derived individually,in which the influence of surface temperature on evaporative heat transfer was considered.

关键词(KeyWords)： 喷雾冷却;蒸发换热;槽面;无量纲方程
spray cooling;evaporative heat transfer;grooved-surface;non-dimensional equation

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51176205);; 山东省自然科学基金项目(Y2008F42)

作者(Author): 张伟,王照亮,徐明海
ZHANG Wei,WANG Zhao-liang,XU Ming-hai(College of Architecture & Storage Engineering

参考文献(References)：

• [1]李德睿,王文.实心圆锥喷嘴喷雾单相区冷却性能模拟研究[J].流体机械,2010,38(6):64-68.
• [2]夏永伟,樊庆文,周广东.单进口压力漩流喷嘴雾化半角仿真计算研究[J].流体机械,2010,38(2):34-37.
• [3]黄晓庆,张旭,叶蔚.撞击型雾化喷嘴流量特性及喷雾降温性能试验研究[J].流体机械,2011,39(12):61-63.
• [4]Jungho Kim.Spray Cooling Heat Transfer:the State ofArt[J].International Journal of Heat and Fluid Flow,2007,28(6):753-767.
• [5]孙纪远,朱冬生,王正东,等.低温表面大流量无沸腾喷雾冷却试验研究[J].流体机械,2009,37(4):60-62.
• [6]Cheng Chieh Hsieh,Shi Chune Yao.Evaporative HeatTransfer Characteristics of a Water Spray on Micro-Structured Silicon Surfaces[J].International Journal ofHeat and Mass Transfer,2006,49(3):962–974.
• [7]靳遵龙,刘东来,刘敏珊,等.超临界CO2冷却条件下水平微圆管中对流换热特性[J].压力容器,2012,29(7):13-17.
• [8]Ruey Hung Chen,Louis C Chow,Jose E Navedo.Opti-mal spray characteristics in water spray cooling[J].In-ternational Journal of Heat and Mass Transfer,2004,47(9):5095-5099.
• [9]Daniel P Rini,Ruey Hung Chen,Louis C.Chow.Bub-ble Behavior and Nucleate Boiling Heat Transfer inSaturated FC-72 Spray Cooling[J].Journal of HeatTransfer,2002,124(5):63-72.
• [10]Ruey Hung Chen,David S Tan,Kuo Chi Lin,et al.Droplet and Bubble Dynamics in Saturated FC-72Spray Cooling on a Smooth Surface[J].Journal ofHeat Transfer,2008,130(1):1-9.
• [11]Milan Visaria,Issam Mudawar.Theoretical and Ex-perimental Study of the Effects of Spray Inclination onTwo-phase Spray Cooling and Critical Heat flux[J].International Journal of Heat and Mass Transfer,2008,51(1):2398-2410.
• [12]王亚青,刘明侯,刘东.小流量下喷雾冷却的理论和试验研究[J].工程热物理学报,2010,31(6):1028-1030.
• [13]王亚青,刘明侯,刘东.大功率激光器喷雾冷却中无沸腾区换热性能试验研究[J].中国激光,2009,36(8):1973-1978.
• [14]王正,郑静,茅庆飞,等.焦炭塔工作过程温度场仿真分析[J].压力容器,2011,28(4):32-38.
• [15]M R Pais,L C Chow,E T Maheikey.Surface Rough-ness and Its Effects on the Heat Transfer Mechanismin Spray Cooling[J].Journal of Heat Transfer,1992,114(1):211-219.
• [16]Eric A Silk,Jungho Kim,Ken Kiger.Spray Coolingof Enhanced Surfaces:Impact of Structured SurfaceGeometry and Spray Axis Inclination[J].Internation-al Journal of Heat and Mass Transfer,2006,49(10):4910-4920.
• [17]Christof Sodtke,Peter Stephan.Spray Cooling on Mi-cro Structured Surfaces[J].International Journal ofHeat and Mass Transfer,2007,50(6):4089-4097.
• [18]王亚青,刘明侯,刘东,等.高功率激光器喷雾冷却的试验研究[J].强激光与粒子束,2009,21(12):1761-1766.
• [19]M R O Panao,A L N Moreira.Heat Transfer Correla-tion for Intermittent Spray Impingement:A DynamicApproach[J].International Journal of Thermal Sci-ences,2009,48(4):1853-1862.