张景卫,蒋翔,吴治将,李元希,朱冬生
ZHANG Jing-wei,JIANG Xiang,WU Zhi-jiang,LI Yuan-xi,ZHU Dong-sheng(South China University of Technology

• 1:华南理工大学

摘要(Abstract)：

运用Fluent软件对蒸发式冷凝器3种异型管——椭圆管、扭曲管及弹形管管束中强制对流空气进行了数值模拟,模拟的数据经Tecplot.10处理后直观地表征了3种异型管束中空气的速度场、压力场、温度场,并在此基础上对此3种异型管进行了实验研究。模拟分析得出的结论与实验研究的结果吻合甚好,表明了流线形设计的弹形管与椭圆管、扭曲管相比,不仅传热效率高,而且流动阻力小。
A numerical simulation of the forced convection air in the tube bundle of the elliptical tube,the twist tube and bullet tube was presented,by means of the FLUENT software.The data of simulation was processed by Tecplot.10,which provide a direct illustration of the velocity、pressure and temperature fields of the flowing air in the tube bundles of the three special tubes.The experiments were studied on the three special tubes on the base of which.The analyzed conclusions by simulation agreed well with the experimental results.It was shown that the advantages of bullet tube designed with streamline over the elliptical tube and the twist tube not only in heat transfer efficiency,but also flowing resistance.

关键词(KeyWords)： 冷凝器;强化传热;异型管;数值模拟
condenser;heat transfer enhancement;special tube;numerical simulation

Abstract:

Keywords:

基金项目(Foundation): 广东省自然科学基金项目(04015950)

作者(Author): 张景卫,蒋翔,吴治将,李元希,朱冬生
ZHANG Jing-wei,JIANG Xiang,WU Zhi-jiang,LI Yuan-xi,ZHU Dong-sheng(South China University of Technology

参考文献(References)：

• [1]Brown W K.Fundamental concepts integrating evapo-rative techniques in HVAC systems[J].ASHRAETransactions,1990,96(Part1):1227-1235.
• [2]Goswami D Y,Mathur G D,Kulkarni S M.Experi-mental investigation of performance of a residential airconditioning system with an evaporatively cooled con-denser[J].Journal of solar energy engineering,1993,115:206-211.
• [3]孙欢,邹同华,马麟.冷库用蒸发式冷凝器与水冷式冷凝器对比试验[J].保鲜与加工,2006,(6):19-20.
• [4]朱冬生,沈家龙,蒋翔,等.蒸发式冷凝器管外水膜流动实验研究[J].化学工程,2006,34(8):17-20.
• [5]王铁军.喷淋蒸发翅管式冷凝器传热传质研究[J].制冷技术,2006,34(4):299-302.
• [6]唐广栋,蒋翔,沈家龙,等.蒸发式冷凝器管外水膜分布[J].石油化工设备,2006,35(4):5-8.
• [7]蒋翔,朱冬生,唐广栋.蒸发式冷凝器管外水膜与空气传热性能机理的研究[J].流体机械,2006,34(8):59-62.
• [8]郝亮,阚杰,袁秀玲.蒸发式冷凝器稳态模型数值模拟[J].制冷与空调,2005,5(4):31-34.
• [9]Guo Z Y,Li D Y,Wang B X.A Novel Concept forConvective Heat Transfer Enhancement[J].Int JHeat Mass Transfer,1998,41(14):2221-2225.
• [10]Tao W Q,He Y L,Liu X,et al.A Unified Theoryfor Enhancing Single Transport Process-Field Syner-gy[A].Imaishi N.Proceedings of 2001 IAMS Inter-national Seminar on Materials for Use in Lithium Bat-teries and Transport Phenomena in Material Process-ing[C].Kasuga:Institute of Advanced MaterialStudy,Kyushu University,2001.
• [11]黄德斌,邓先和,朱冬生,等.气流横向冲刷管束湍流换热的场协同分析[J].化学工程,2006,34(7):13-16.
• [12]张杏祥,桑之富.扭曲扁管管内流动与传热的三维数值研究[J].南京工业大学学报,2005,27(4):71-75.
• [13]Dzyubenko B V,Stetsyuk V N.Principles of HeatTransfer and Hydraulic Resistance in Twisted TubeBundles[J].Power Engineering(USSR),1989,27(4):128-136.
• [14]Zhang Zhi,Jin Pei-geng,Liu Zhi-gang,et al.Analy-sis of Air Flow and Heat Transfer in Air ConditionerCondensers[J].Refrigeration Technology,2002(1):8-13.