山东大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (4): 70-75.doi: 10.6040/j.issn.1672-3961.0.2014.033
李飞, 孙奉仲, 史月涛, 马磊
LI Fei, SUN Fengzhong, SHI Yuetao, MA Lei
摘要: 为分析前排绕流扰动对后排管换热及阻力的影响规律,以4列多排(2~10)管束为研究对象,建立稳定的热态流场,采用错列及顺列2种方式,分析传热及流动特性在不同管排数下的变化规律;定量分析管排数对阻力特性的影响规律,定义了管排阻力修正系数,并根据实验数据给出了其在不同管排数下的取值;根据场协同理论定义了相对场协同率的概念,用以表征不同管排数下其总体换热效率相对实际最大换热的比值。研究结果表明,管间绕流为管束换热器管排影响规律的主要原因,10排及以上管束流场均匀,管间绕流影响最小,场协同角较小,10排以内采用管排系数进行修正。
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[1] GUAN Wayout, LI Lifu, LIN Yongman.The study on heat transfer characteristic of coil's internal-melt ice storage tank for elliptical tube[J].International Journal of Engineering and Industries, 2012, 3(2):46-52. [2] ERLING N. Experimental investigation of heat transfer and pressure drop in serrated-fin tube bundles with staggered tube layouts Applied[J]. Thermal Engineering, 2010, 30(13):1531-1537. [3] GREGORY J Z, LOUAY M C, PEDRO J M.Experimental determination of heat transfer and friction in helically-finned tubes[J]. Experimental Thermal and Fluid Science,2008, 32(3):761-775. [4] MESBAH G K, AMIR F, DAVID S K. An experimental characterization of cross-flow cooling of air via an in-line elliptical tube array[J]. International Journal of Heat and Fluid Flow, 2004, 25(4):636-648. [5] 安越里, 赵丽,黄新元.螺纹槽管错排管束的传热特性及流动阻力特性研究[J]. 热能动力工程, 2006, 21(4):358-361. AN Yueli, ZHAO Li, HUANG Xinyuan.A study of heat transfer and resistance characteristics on spiral fluted staggered tubes[J]. Journal of Engineering for Thermal Energy and Power, 2006, 21(4):358-361. [6] DU Xiaoze, FENG Lili, YANG Yongpeng. Experimental study on heat transfer enhancement of wavy finned flat tube with longitudinal vortex generators[J]. Applied Thermal Engineering, 2013, 50(1):55-62. [7] 蔡宏, 吴燕华, 杨冬.低质量流速优化内螺纹管的传热特性试验研究[J]. 中国电机工程学报, 2011, 31(26):65-69. CAI Hong, WU Yanhua, YANG Dong. Experimental investigation on heat transfer characteristics of low mass-flux optimized rifled tube [J]. Proceedings of the CSEE, 2011, 31(26):65-69. [8] 周文铸, 欧阳新萍,刘道平. 滴状翅片管传热及阻力特性的试验研究[J]. 热能动力工程, 2006, 21(2):156-160. ZHOU Wenzhu, OUYANG Xinping, LIU Daoping. Experimental Study of the Heat Transfer and Resistance Characteristics of Drop-shaped Finned Tubes[J]. Journal of Engineering for Thermal Energy and Power, 2006, 21(2):156-160. [9] SHI Yuetao,GAO Ming,TANG Guihua, et al., Experimental research of CFB ash deposition on helical finned tubes [J]. Applied Thermal Engineering, 2012, 37:420-429. [10] 陈群, 任建勋, 过增元. 流体流动场协同原理及其在减阻中的应用[J]. 科学通报, 2008, 53(4):489-492. CHEN Qun, REN Jianxiun, GUO Zenyuan. A study of synergy principle on fluid flow field and its application in resistence reduction[J]. Chinese Science Bulletin, 2008, 53(4):489-492. [11] HE Yaling, CHU Peng, TAO Wenquan, et al. Analysis of heat transfer and pressure drop for fin-and-tube heat exchangers with rectangular winglet-type vortex generators[J]. Applied Thermal Engineering, 2012, 49(3):1-14. [12] LI Bin, FENG Bo, HE Yaling, et al. Experimental study on friction factor and numerical simulation on flow and heat transfer in an alternating elliptical axis tube[J]. Applied Thermal Engineering, 2006, 26(17-18):2336-2344. [13] GUO Zenyuan. A nonvel concept for convective heat transfer enhancement[J]. International Journal of Heat Mass Transfer, 1998, 41:2221-2225. [14] TAO Wenquan, GUO Zenyuan. Field synergy principle for enhancing convective heat transfer-its extension and numerical verification[J]. Int J Heat Mass Transfer, 2002, 45(18):3849-3856. [15] 张仲彬, 陈玲, 徐志明, 等. 横纹管强化传热实验研究与机制分析[J].中国电机工程学报, 2010, 30(增刊):101-105. ZHANG Zhongbin, CHEN Ling, XU Zhiming, et al. Mechanism analysis and experiment research on heat transfer enhancement of transverse corrugated tube[J]. Proceeding of the CSEE, 2010, 30(supplement):101-105. [16] 夏翔鸣,赵力伟,徐宏,等.基于场协同理论的强化传热综合性能评价因子[J].热能动力工程, 2011, 26(2): 197-201. XIA Xiangming, ZHAO Liwei, XU Hong, et al. Overall performance factor for evaluating intensified heat conduction based on the field synergy theory[J]. Journal of Engineering for Thermal Energy and Power, 2011, 26(2):197-201. [17] 杨立军, 任建勋, 杜小泽.不同磁致纵向涡形式对空气对流换热的影响[J].工程热物理学报, 2006, 27(2):283-285. YANG Lijun, REN Jianxiun, DU Xiaoze. Influences of different magnetically induced longitudinal vortices on air convection heat transfer[J]. Journal of Engineering Thermophysics, 2006, 27(2):283-285. [18] 冷学礼, 程林, 杜文静. 流体低速横掠振动圆管的传热特性研究[J]. 工程热物理学报, 2003, 24(2):328-330. LENG Xueli, CHENG Lin, DU Wenjing. Heat transfer properties of the vibrational pipe when fluid passes by it slowly[J].Journal of Engineering Thermophysics, 2003, 24(2):328-330. [19] GRIMSON E D. Correlation and utilization of new data on flow resistance and heat transfer for crossflow of gases over tube banks[J]. Trans ASME, 1937, 59(3):583-594. [20] 杨世铭, 陶文铨. 传热学[M]. 北京: 高等教育出版社,1998: 171-178. |
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