缩放管内插旋流片对水与油介质复合传热强化规律的研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
本论文采用数值模拟和实验研究相结合的方法以水、50%甘油和85%甘油为传热工质,分别对光滑管和缩放管插入2种不同结构形式旋流片的局部流阻与传热性能进行了数值模拟研究,对不同管内流体介质的温度场和速度场进行了对比分析探讨。结果表明:
     在水为流动介质高湍流(15000缩放管内插旋流片使得管道流体产生了强烈的漩涡流,旋流片产生的自旋流在旋流片下游18倍管径处消失;在有旋流片的一段管道中传热系数Nu和阻力系数都达到最大值,但是由于阻力的增加幅度远大于传热量的提高幅度使得有旋流片的一段管道中综合传热性能很差为0.55,最大值在旋流片下游产生约为1.23。整体综合传热因子小于1,为0.89。所以管内插旋流片在高度湍流条件下综合传热性能不理想的主要原因是:有旋流片的一段产生了太高的形体阻力和旋流片产生的自旋流在下游迅速衰减结束。
     在50%甘油为流动介质过度流(3000缩放管内间隔插入旋流片的局部流阻与传热性能与介质水的情况相似。但是旋流片产生的自旋流在旋流片下游约15倍管径处消失,有旋流片一段管道的综合传热性能得到很大的改善为0.8,综合传热性能评价因子j的峰值为1.38。从总体而言传热综合性能提高1.08。在85%甘油为流动介质层流(400     综上所述,缩放管内插旋流片对液体进行复合强化传热,在Re大于15000的湍流条件下综合传热性能不理想,综合传热性能小于1;在过渡流条件下综合传热性能超过1,但强化的幅度小于10%;在层流的条件下综合传热性能超过1,且强化的幅度大于18%。不同结构旋流片强化传热性能的比较显示出:旋转角为270度的旋流片在提高换热系数的同时带来了更大的形体阻力,其综合传热性能不如旋转角为180度的旋流片。层流条件下,由于管内流体的传热系数的提高幅度大于阻力系数的增加量使得缩放管内插旋流片复合强化传热方式更适用于传热介质在低雷诺数下的流动状态。
In this paper, the combining methods of numerical simulation and experimental study were used. Respectively with water, 50% glycerol and 85% glycerol as the heat transfer working fluid, the local flow resistance and heat transfer performance of smooth tube and converging-diverging tube with 2 different twisted-tapes inserted were studied in numerical simulation method. At the same time, both temperature field and velocity field of different pipes fluid mediums were compared and analyzed. The results show that at the condition of high turbulence (15000      Under the condition of 50% glycerol as the flow fluid medium with low turbulent (3000      In summary, the use of twisted tapes for the liquid to enhance heat transfer, comprehensive heat transfer performance is at 0.89 which duces poor heat transfer. Integrated under the transitional flow, the result of enhance heat transfer is better, but the enhanced rate less than 10%. Laminar flow conditions in the integrated heat transfer is best, and the enhanced rate of is greater than 18%.mparison performance of enhanced heat transfer capability of different structure twisted-tapes shows that the rotation angle of 270 degrees swirl chip at the same time increases the heat transfer coefficient has brought a greater physical resistance to flow fluid, which Heat transfer performance is not as good as 180-degree rotation angle of swirl tapes. In laminar flow, because the heat transfer coefficient increased in magnitude is greater than the increased in the amount of drag coefficient, the method of compound heat transfer enhancement of a converging-diverging tube with regularly spaced twisted-tapes is more suitable for the heat transfer medium fluid flowing at low Reynolds number condition.
引文
[1]江泽民.对中国能源问题的思考[J].上海交通大学学报,2008,42(3):345-359
    [2]邓先和,洪蒙纳.粗糙管换热器带自旋流的复合强化传热技术[J].化工进展, 2007,26(10):1400-1403
    [3]崔海(s)亭,彭培英.强化传热新技术及其应用[M].北京:化学工业出版社.2006:1-2
    [4]杨世铭,陶文铨.传热学[M].第四版.北京:高等教育出版社,2006:306
    [5] Bergles A.E..ExHFT for fourth generation heat transfer technology [J]. Experimental thermal and fluid science,2002,26:335-344
    [6] Jain A.,Biswas G.,Maurya D..Winglet-type vortices generators with common-flow configuration for fin-tube heat exchangers [J].Numerical Heat Transfer,Part A Applications,2003,43(2):201-219
    [7] Jocobi A. M.,Shah R.K..Heat transfer surface enhancement through the use of longitudinal vortices:a review of recent progress [J].Experimental Thermal and Fluid Science,1995,11:295-309
    [8] Fiebig M..Embedded vortices in internal flow:heat transfer and pressure loss enhancement [J].International Journal of Heat and Fluid Flow,1995,16:376-388
    [9] Bergles A.E.,Lee R.A., Mikic B.B..Heat transfer in rough tubes with tape-generated swirl flow [J].ASME Journal of Heat Transfer,1969,91:443-450
    [10]陈学俊.能源动力工程的发展与展望[J].热力发电,2003 (7):2-6
    [11]杨世铭,陶文铨.传热学(第三版)[M].北京:高等教育出版社,1998,345.
    [12]高莉平,王励端.高效换热器发展动态及其应用[M].石油化工设备技术,1995,16(3)8-15.
    [13] Gao X.,Sunden B..Heat transfer and pressure drop measurements in rib-roughened rectangular ducts [J].Experimental Thermal and Fluid Science,2001,24:25-34
    [14] Sara O. N..Performance analysis of rectangular ducts with staggered square pin fins [J].Energy Conversion and Management,2003,44:1787-1803
    [15]朱冬生,钱颂文.强化传热技术及其设计应用.化工装备技术,2000,21(6):1-9
    [16] E.-U.Schlunder.AnalogyBetween Heat and Momentum Transfer [J].Chemical Engineering and Process. 37(1998) 103一107
    [17]赵学端,廖其奠.粘性流体力学[M],机械工业出版社,1987
    [18]过增元,换热器中的场协同原则及其应用[J].机械工程学报.2003年12期
    [19] Guo Z Y, Li D Y, Wang B X. A Novel Concept for Convective Heat
    [20]兰州石油机械研究所[M].换热器(中),烃加工出版社,1988,26-64
    [21]邓先和.壳程流体纵向冲刷管壳式换热器传热强化问题的研究[D].广州:华南理工大学,1990
    [22]罗小平.壳程轴流型换热器流阻和传热的预测及结构优化[D].广州:华南理工大学,1996
    [23]李军.多种强化传热管的强化传热性能与流阻性能研究[D].广州:华南理工大学,2000
    [24]黄维军,邓先和,洪蒙纳,等.气体缩放管传热优化及其肋高确定[J].石油炼制与化工,2005,36(12):54-58
    [25]詹海波,张仲彬,邵天成,等.缩放管流动阻力与传热性能的实验研究[J].东北电力大学学报,2007,27(1):42-45
    [26]邓先和,叶树滋.新型换热器在硫酸转化系统中的应用[J].硫酸工业,1996,6:19-23
    [27]陆应生,关建郁,陈慕玲,等.整圆槽孔折流栅板和缩放管在中氮肥氮氢气压缩机级间冷却器中的应用[J].化肥工业,2001,28(1):29-30
    [28]邓先和,赵晓曦,张亚君.轴流式双壳程缩放管管壳式换热器的工业应用试验[J].石油炼制与化工,2001,33(2):11-14
    [29]谭盈科,庄礼贤.螺旋槽管的筛选实验[J].华南工学院学报,1979,7:41-45
    [30]邓颂九,谭盈科.轧槽管传热和流体阻力的研究[J].化学工程,1980,6:75-79
    [31]叶侨燕,谭盈科,邓颂九.螺旋槽管管内流阻和传热特性的研究[J].高校化学工程学报,1987,2:57-61
    [32]程国俊,冯骏,靳明聪,等.螺旋管的传热及流阻性能[J].重庆大学学报,1980,3:81-94
    [33]李向明,叶国兴,邓颂九.高效换热元件-螺旋槽管的研究及应用[J].化工学报,1982,33(4):359-367
    [34]彭洁,于恩林,姜伟.螺旋槽管换热过程的三维速度场与温度场耦合数值模拟[J].热能动力工程,2007,22(4):395-398
    [35] Newson J.H., Hongdson T.K..The development of enhanced heat transfer condensing tubing [A].41st International Symposia on Fresh Water From the Sea [C],1973,1:69-94
    [36]吉富英明,大场一马,有马芳雄.螺纹管的传热与压力损失[J].火力原子力发电,1976,27(2):171-182
    [37]周强泰,赵伶伶,王泽宁,等.螺旋槽管强化传热研究及其在锅炉中的应用[J].东南大学学报(自然科学版),2005,35(1):1-6
    [38]高学农,叶国兴.螺旋槽管外含高浓度不凝组分蒸汽冷凝器传热研究[J].化学工程,1996,24(3):27-30
    [39]李治滨.螺旋槽管强化传热原理及在石化装置上的应用前景[J].石油化工设备技术,2002,23(2):8-10
    [40] Kalinin E. K.,Dreytser G. A.,Zakirov S. G.,et al..Improvement of heat transfer in tubular heat transfer exchangers by the use of grooved tubes[J].Heat Transfer-Soviet Research,1981,13(4):30-40
    [41]彭炳初,罗伟明,严国泰,等.强化管在空压机后冷器中传热与流阻性能研究[J].华南理工大学学报(自然科学版),1997,25(3):81-85
    [42]彭炳初,庄贤礼,陈广怀,等.空气压缩机后冷却器传热强化试验研究[J].化学工程,1996,24(5):13-16
    [43]陈志澜,王华生,杨杰辉.水平横纹槽管内氨沸腾换热及压降特性实验研究[J].化学工程,1997,25(3):32-36
    [44]刘吉普.横纹槽换热管力学性能试验研究[J].化工机械,1998,25(2):70-72
    [45]刘吉普,唐春.横纹槽管滚轧加工及强度研究[J].化工装备技术,1998,19(3):26-28
    [46] Manglik,R.M, Bergles,A.E,Heat transfer and pressure drop correlations for twisted-tape insets in isothermal tubes,Heat Transfer[J],1993,115:890-896
    [47] Agarwal S.K,Raia R.M, Heat transfer augmentation for the flow of a viscous liquid in circular tubes using twisted tape inserts.International Journal of Heat and Masstransfer [J], 1996,39(17):3547-3557
    [48] Zimparov V. Prediction of friction factors and heat transfer coefficients for turbulent flow in Corrugated tubes combined with twisted tape inserts.International Journal of Heat and Mass Transfer [J], 2004, 47:589-599
    [49]吴双应,辛明道。油在加扭带三维肋管内的流动阻力和传热性能。工程热物理学报[J],19-96,17:131-134
    [50]王杨君,邓先和。内插旋流片的管内流动与传热的数值模拟。化工学报[J],2007,58(10):2455-2462
    [51] Smith Eiamsa-ard.Experimental investigation of heat transfer and flow friction in a circular tube fitted with regularly spaced twisted tape element. International communications in Heat and Mass Transfer [J], 2006, 33: 1225-1233
    [52]洪蒙纳,邓先和。含旋流片缩放管内流动和传热的数值模拟。石油化工设备[J],2007,36(6):0042-0044
    [53]孟继安,过增元,李志信。应用场协同理论的多纵向涡强化换热管。动力工程[J],2005,25(3):404-407
    [54] Bergles A.E.,Lee R.A.,Mikic B.B..Heat transfer in rough tubes with tape-generated swirl flow [J].ASME Journal of Heat Transfer,1969,91:443-445
    [55] Hfromoto V..Heat transfer enhancement effects by combined use of internally rough rouge surface and twisted tapes [J].Heat Transfer Japanese Research,1984,13: 231-236
    [56] Usui H.,Sano Y.,Iwashita K.,et al..Enhancement of heat transfer by a combination of an internally grooved rough tube and a twisted tape [J].International Journal of Chemical Engineering,1986,26(1):97-104
    [57] Zimparov V..Enhancement of heat transfer by a combination of three-star spirally corrugated tubes with a twisted tape [J].International Journal of Heat and Mass Transfer,2001, 44:551-574
    [58] Zimparov V..Enhancement of heat transfer by a combination of a single-star spirally corrugated tubes with a twisted tape [J].Experimental Thermal and Fluid Science, 2002,25:535-546
    [59] Zimparov V..Prediction of friction factors and heat transfer coefficients for turbulentflow in corrugated tubes combined with twisted tape inserts. Part 1: friction factors [J].International Journal of Heat and Mass Transfer,2004,47:589-599
    [60] Zimparov V.. Prediction of friction factors and heat transfer coefficients for turbulent flow in corrugated tubes combined with twisted tape inserts. Part 2: heat transfer coefficients [J].International Journal of Heat and Mass Transfer,2004,47: 385-393
    [61]沈慧,周强泰.扭带插入螺纹管复合强化传热实验研究[J].发电设备,1997, 4:28-31
    [62]高小涛.管内复合强化传热技术及机理分析[J].热能动力工程,1998,13:418-420
    [63]吴慧英,程慧尔,周强泰.进口轴向叶片旋流器与螺旋槽管的管内复合强化传热[J].化工学报,1998,49(6):700-705
    [64]张卫军,张岩,金珠梅.粘性流体管内复合强化传热的实验研究[J].物理测试,1998,1:31-33
    [65]程林,田茂诚,张冠敏,等.流体诱导振动复合强化传热的实验研究[J].工程热物理学报,2002,23(4):485-487
    [66]刘建清,田茂诚.流体诱导振动强化传热的试验研究[J].华中理工大学学报,1998,26(11):85-87.
    [67]程林,田茂诚,张冠敏,等.流体诱导振动复合强化传热的理论分析[J].工程热物理学报,2002,23(3):330-332
    [68]程林.换热器内流体诱发振动[M].北京:科学出版社,1995.
    [69]黄维军,邓先和等.缩放管强化传热机理分析[J].流体机械,2006,34(2):76-79
    [70] HabibM.A.Ikram UI-Haq,H.M.Badr, S.A.M.Calculation of Turbulent Flow and Heat Transfer in Periodically [J]. Converging-diverging Computers and Fluids,1998,27(1):95-120
    [71] Wang C C,Chen C K.Forced Convection in a Wary-wall Channel[J].International Journal of Heat and mass Transfer,2002,45(12):2587-2595
    [72]方振鑫,罗小平.缩放管管外流动沸腾换热的数值模拟与场协同分析[J].节能技术,2007,25(144):296-299
    [73]陈颖,邓先和等.缩放管内湍流对流换热(Ⅰ)场协同控制机理[J].化工学报,2004,55(11):1759-1763
    [74] Celata G.P.,Francesco D.A.,Chiaradia A.,et al..Upflow turbulent mixed convection heat transfer in vertical pipes [J].International Journal of Heat and Mass Transfer, 1998,41:3926-3943
    [75] Li L.J.,Lin C.X.,Ebadian M.A..Turbulent mixed convective heat transfer in the entrance region of a curved pipe with uniform wall temperature [J].International Journal of Heat and Mass Transfer,1998,41:2682-2794
    [76] Braga C.V.M.,Saboya F.E.M..Turbulent heat transfer, pressure drop and fin efficiency in annular regions with continuous longitudinal rectangular fins [J].Experimental Thermal and Fluid Science,1999,20:55-65
    [77] Schroder K.,Gelbe H..Two and three dimensional CFD simulation of flow-induced vibration excitation in tube bundles [J].Chemical Engineering and Processing,1999, 38:621-629
    [78] Romero-Mendez R.,Mihir S.,Yang K.T.,et al..Effect of fin spacing on convection in a plate fin and tube heat exchanger [J].International Journal of Heat and Mass Transfer,2000,43:39-51
    [79] Aganda A.A..A comparison of the predicted and experimental heat transfer performance of a finned tube evaporator [J].Applied Thermal Engineering,2000, 20:499-513
    [80]何雅玲,黄鹏波,屈治国,等.场协同理论在交变流动缝隙式回热器中的数值验证[J].工程热物理学报,2003,24(4):649-651
    [81] He Y.L.,Tao W.Q.,Song F.Q.,et al..Three-dimensional numerical study of heat transfer characteristics of plain plate fin-and-tube heat exchangers from view point of field synergy principle [J].International Journal of Heat and Fluid Flow,2005, 26:459-473
    [82]马良栋,李增耀,陶文铨.具有截面自然对流通道内湍流换热的直接数值模拟[J].西安交通大学学报,2007,41(3):367-371
    [83] Tao Y.B.,He Y.L.,Wu Z.G.,et al..Three-dimensional numerical study and field synergy principle analysis of wavy fin heat exchangers with elliptic tubes [J]. International Journal of Heat and Fluid Flow,2007,28:1531-1544
    [84] Wu J.M.,Tao W.Q..Investigation on laminar convection heat transfer in fin-and-tube heat exchanger in aligned arrangement with longitudinal vortex generator from the viewpoint of field synergy principle [J].Applied Thermal Engineering,2007,27:2609-2617
    [85] Tao Y.B.,He Y.L.,Huang J.,et al..Three-dimensional numerical study of wavy fin-and-tube heat exchangers and field synergy principle analysis [J].International Journal of Heat and Mass Transfer,2007,50:1163-1175
    [86] Wu J.M.,Tao W.Q..Numerical study on laminar convection heat transfer in a rectangular channel with longitudinal vortex generator.Part A: Verification of field synergy principle [J].International Journal of Heat and Mass Transfer,2008, 51:1179-1191
    [87]孟继安,李志信,过增元,等.螺旋扭曲椭圆管层流换热与流阻特性模拟分析[J].工程热物理学报,2002,23(6):117-120
    [88] Meng J.A.,Liang X.G.,Li Z.X..Field synergy optimization and enhanced heat transfer by multi-longitudinal vortexes flow in tube [J].International Journal of Heat and Mass Transfer,2005(48):3331-3337
    [89]俞接成,李志信.环形内肋片圆管层流脉冲流动强化对流换热数值分析[J].清华大学学报(自然科学版),2005,45(8):1091-1094
    [90]肖金花,钱才富,黄志新.波纹管传热强化效果与机理研究[J].化学工程,2007,35(11):12-15
    [91]杨成凤,张靖周,李伟.仿螺旋肋片通道流动换热特性的数值研究[J].工程热物理学报,2007,28(增刊2): 77-80
    [92]王福军.计算流体动力学分析—CFD软件原理与应用[M].清华大学出版社,2004.9
    [93]王瑞金,张凯,王刚.Fluent技术基础与应用实例[M].清华大学出版社,2006:1-3
    [94]李勇,刘志友,安亦然.介绍流体力学通用软件—Fluent[J].水动力学研究与进展.2001,16(2) :254-256
    [95]刘霞,葛新锋. FLUENT软件及其在我国的应用[J].能源研究与利用,2003,2:36-38
    [96] Kays W.M.,Crawford M.E. . Convective heat and mass transfer [M].2nd edition.New York:McGraw-Hill Book Company,1980:159-160
    [97] Holman J.P..Heat Transfer [M].9th edition.Beijing:China Machine Press,2005:25-33,248,511-518
    [98]陈庆辉.在液相介质下缩放管内带衰减性自旋流的复合强化传热研究.[D].广州:华南理工大学.,2009.
    [99] Webb R.L.,Eckert E.R.G..Application of rough surfaces to heat exchanger design [J].International Journal of Heat Mass Transfer,1972,15:1647-1658
    [100]谢端绶,璩定一,苏元复.化工工艺算图常用物料物性数据.[M].化学工业出版社,1982.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700