您的位置:山东大学 -> 科技期刊社 -> 《山东大学学报(工学版)》

山东大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (3): 117-122.doi: 10.6040/j.issn.1672-3961.0.2015.288

• • 上一篇    

质量流速对R134a流动沸腾起始点及壁温特性的影响

逯国强1,2,韩吉田1*,孔令健1,陈常念1,胡桂秋2,陈军2,李江飞2   

  1. 1. 山东大学能源与动力工程学院, 山东 济南 250061; 2. 承德石油高等专科学校热能工程系, 河北 承德 067000
  • 收稿日期:2015-09-02 出版日期:2016-06-30 发布日期:2015-09-02
  • 通讯作者: 韩吉田(1961— ),男,山东莱阳人,教授,博士,博导,主要研究方向为两相流与传热,分布式供能.E-mail: jthan@sdu.edu.cn E-mail:lugqsd@163.com
  • 作者简介:逯国强(1985— ),男,山东泰安人,助教,硕士,主要研究方向为制冷剂流动沸腾换热与通风技术.E-mail: lugqsd@163.com
  • 基金资助:
    国家自然科学基金资助项目(51076084)

Effect of mass flux on onset of nucleate flow boiling of R134a and tube wall temperature characteristics

LU Guoqiang1, 2, HAN Jitian1*, KONG Lingjian1, CHEN Changnian1, HU Guiqiu2, CHEN Jun2, LI Jiangfei2   

  1. 1. School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China;
    2. Department of Thermal Engineering, Chengde Petroleum College, Chengde 067000, Hebei, China
  • Received:2015-09-02 Online:2016-06-30 Published:2015-09-02

摘要: 为了得到螺旋管内流体流动沸腾起始点及管子壁温分布的特性,以R134a为工质进行试验。通过观察逐渐增大热流密度时壁温的变化情况判断沸腾的起始点。研究结果表明,沸腾起始点的热流密度随工质质量流速的增大而增大,但由于质量流速、离心力、重力等对汽泡粘附和脱离行为的综合影响,在某些位置会出现与该趋势不同的情况;在单相对流换热阶段,选定点的壁温随质量流速的增大而降低,而在流动沸腾换热阶段,质量流速对壁温变化的影响较小。研究结果可望为螺旋管式换热器的可靠设计和安全运行提供参考依据。

关键词: 壁温, 汽泡行为, 机理, 沸腾起始点, 质量流速

Abstract: In order to obtain the characteristics of onset of nucleate flow boiling(ONB)and tube wall temperature distributions in helically-coiled tube, an experiment was conducted with the working medium R134a. The ONB was determined by observing the wall temperature changes when the heat flux was increased gradually. Analysis of the experimental results was performed to reveal the related mechanism. The results indicated that the heat flux of ONB increased with increase in the mass flux of R134a, however, the mass flux, centrifugal and gravity forces had different influences on the bubble behavior of detaching and reattaching in some cases, resulting in different trends in some positions measured in the experiment. In single-phase, the wall temperatures in the selected points decreased with increase in the mass flux of R134a; under flow boiling conditions, the increase in the mass flux only resulted in a slight change in the tube wall temperatures. The experimental results can provide a reference for the reliable design and safe operation of helically-coiled tube heat exchangers.

Key words: onset of nucleate flow boiling, mass flux, bubble behavior, mechanism, wall temperature

中图分类号: 

  • TK124
[1] 施明恒, 甘永平, 马重芳. 沸腾与凝结[M]. 北京: 高等教育出版社, 1995: 143-145.
[2] CELATA G P, CUMO M, MARIANI A. Experimental evaluation of the onset of subcooled flow boiling at high liquid velocity and subcooling[J]. International Journal of Heat and Mass Transfer, 1997, 40(12):2879-2885.
[3] AHMADI R, NOURI-BORUJERDI A, JAFARI J, et al. Experimental study of onset of subcooled annular flow boiling [J]. Progress in Nuclear Energy, 2009, 51(2):361-365.
[4] 郭萌, 赵亮, 毛宇飞, 等. 高质量流速下立式螺旋管内汽液两相传热特性研究[J]. 工程热物理学报, 2008, 29(3):423-428. GUO Meng, ZHAO Liang, MAO Yufei, et al. The study in steam-water two-phase flow heat transfer at high mass velocity of flow in vertical helical coiled tube[J]. Journal of Engineering Thermophysics, 2008, 29(3):423-428.
[5] 陈志光, 秦朝葵, 熊超. 螺旋管传热系数的研究[J]. 热科学与技术, 2009, 8(2):131-135. CHEN Zhiguang, QIN Chaokui, XIONG Chao. Study on heat transfer coefficient of spiral heat exchanger[J]. Journal of Thermal Science and Technology, 2009, 8(2):131-135.
[6] 王淑香, 张伟, 牛志愿, 等. 超临界压力下CO2在螺旋管内的混合对流换热[J]. 化工学报, 2013, 64(11):3917-3926. WANG Shuxiang, ZHANG Wei, NIU Zhiyuan, et al. Mixed convective heat transfer to supercritical carbon dioxide in helically coiled tube[J]. CIESC Journal, 2013, 64(11):3917-3926.
[7] NAPHON P, WONGWISES S. A review of flow and heat transfer characteristics in curved tubes[J].Renewable and Sustainable Energy Reviews, 2006, 10(5):463-490.
[8] 孔令健, 韩吉田, 陈常念, 等. 卧式螺旋管内过冷沸腾起始点的试验研究[J]. 工程热物理学报, 2014:1405-1409. KONG Lingjian, HAN Jitian, CHEN Changnian, et al. An experimental investigation of onset of subcooled boiling in horizontal helical coils[J]. Journal of Engineering Thermophysics, 2014:1405-1409.
[9] 白博峰, 郭烈锦. 卧式螺旋管内流动沸腾传热研究[J]. 核科学与工程, 1997, 17(4):302-308. BAI Bofeng, GUO Liejin. Study on convective boiling heat transfer in horizontal helically coiled tubes[J]. Chinese Journal of Nuclear Science and Engineering, 1997, 17(4):302-308.
[10] 张小宁, 孙中宁, 孟现珂, 等. 整体加热球床通道内流动过冷沸腾起始点的试验研究[J]. 核动力工程, 2013, 34(3):58-62. ZHANG Xiaoning, SUN Zhongning, MENG Xianke, et al. Experimental investigation of subcooled flow boiling incipience in volumetrically heated packed bed[J]. Nuclear Power Engineering, 2013, 34(3):58-62.
[11] ZENG L Z, KLAUSNER J F, MEI R. A unified model for the prediction of bubble detachment diameters in boiling systems-I. Pool boiling[J]. International Journal of Heat and Mass Transfer, 1993, 36(9):2261-2270.
[12] LIU D, LEE P S, GARIMELLA S V. Prediction of the onset of nucleate boiling in microchannel flow[J]. International Journal of Heat and Mass Transfer, 2005, 48(25):5134-5149.
[13] 张明, 周涛, 盛程, 等. 窄通道欠热沸腾起始点计算模型的分析[J]. 核动力工程, 2011, 32(3):73-76. ZHANG Ming, ZHOU Tao, SHENG Cheng, et al. Study on calculation model of onset of nucleate boiling in narrow channels[J]. Nuclear Power Engineering, 2011, 32(3):73-76.
[14] PRODANOVIC V, FRASER D, SALCUDEAN M. Bubble behavior in subcooled flow boiling of water at low pressures and low flow rates[J]. International Journal of Multiphase Flow, 2002, 28(1):1-19.
[15] THORNCROFT G E, KLAUSNERA J F, MEI R. An experimental investigation of bubble growth and detachment in vertical upflow and downflow boiling[J]. International Journal of Heat and Mass Transfer, 1998, 41(23):3857-3871.
[16] 周涛, 盛程, 刘平, 等. 窄环形通道ONB发生机理的热流体理论分析[J]. 哈尔滨工程大学学报, 2013, 33(12):1474-1479. ZHOU Tao, SHENG Cheng, LIU Ping, et al. Analysis of ONB developing mechanism in narrow annular channels based on the theory of thermofluid dynamics[J]. Journal of Harbin Engineering University, 2013, 33(12):1474-1479.
[17] YAN Y Y, LIN T F. Evaporation heat transfer and pressure drop of refrigerant R-134a in a small pipe[J]. International Journal of Heat and Mass Transfer, 1998, 41(24):4183-4194.
[18] 陈常念, 韩吉田, 邵莉, 等. R134a卧式螺旋管内流动沸腾CHF特性研究[J]. 核动力工程, 2010(5):76-80. CHEN Changnian, HAN Jitian, SHAO Li, et al. Study on dry-out CHF characteristics of R134a flow boiling in horizontal helically-coiled tubes[J]. Nuclear Power Engineering, 2010(5):76-80.
[19] 邵莉, 许之初, 韩吉田, 等. 卧式螺旋管内R134a沸腾两相传热特性试验研究[J]. 中国电机工程学报, 2011, 31(8):62-66. SHAO Li, XU Zhichu, HAN Jitian, et al. Experimental investigations on two-phase flow boiling heat transfer of R134a in helically coiled tube[J]. Proceedings of the CSEE, 2011, 31(8):62-66.
[1] 彭蓉蓉,俞文生. 浆液性质对注浆压力及扩散方式的影响规律[J]. 山东大学学报(工学版), 2017, 47(3): 119-124.
[2] 胡渤,王芳,高宝玉,徐世平,马宝东. 油田配聚污水水质对聚合物溶液黏度的影响及其机理[J]. 山东大学学报(工学版), 2016, 46(1): 80-85.
[3] 孙立梅,崔洁,高国强,卢建平,岑瑗瑗,刘超,穆晓滨. 胜坨油田回注水系统金属腐蚀机理研究[J]. 山东大学学报(工学版), 2016, 46(1): 86-92.
[4] 公绪春1,刘宝1*,于丽丽1,窦珍伟2. 低温水热法合成均匀单分散ZnS微球[J]. 山东大学学报(工学版), 2011, 41(1): 110-113.
[5] 姚延立,马国利. 洋葱状富勒烯的硬脂酸修饰[J]. 山东大学学报(工学版), 2010, 40(3): 91-94.
[6] 李利平1,路为1,2,李术才1,张庆松1,许振浩1,石少帅1. 地下工程突水机理及其研究最新进展[J]. 山东大学学报(工学版), 2010, 40(3): 104-112.
[7] 何山 尤晓春. 复杂条件下巷道围岩破坏机理及支护方案研究[J]. 山东大学学报(工学版), 2009, 39(4): 121-124.
[8] 李海燕 刘端举 孙庆国 王怀新 刘玉萍. 千米深井软岩巷道破坏机理及支护技术研究[J]. 山东大学学报(工学版), 2009, 39(4): 112-115.
[9] 周咏辉,艾兴,赵军,袁训亮,薛强 . Al2O3/(W, Ti)C纳米复合陶瓷材料的力学性能与强韧化机理[J]. 山东大学学报(工学版), 2008, 38(1): 1-4 .
[10] 徐世平,许春华,高宝玉,王薇,岳钦艳 . 水体中悬浮颗粒物浓度对混凝效果的影响及机理探讨[J]. 山东大学学报(工学版), 2006, 36(5): 89-93 .
[11] . 好氧颗粒污泥的性质及形成机理的探讨[J]. 山东大学学报(工学版), 2006, 36(3): 116-119 .
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 李可,刘常春,李同磊 . 一种改进的最大互信息医学图像配准算法[J]. 山东大学学报(工学版), 2006, 36(2): 107 -110 .
[2] 岳远征. 远离平衡态玻璃的弛豫[J]. 山东大学学报(工学版), 2009, 39(5): 1 -20 .
[3] 王勇, 谢玉东.

大流量管道煤气的控制技术研究

[J]. 山东大学学报(工学版), 2009, 39(2): 70 -74 .
[4] 刘新1 ,宋思利1 ,王新洪2 . 石墨配比对钨极氩弧熔敷层TiC增强相含量及分布形态的影响[J]. 山东大学学报(工学版), 2009, 39(2): 98 -100 .
[5] 赵治广,王登杰,田云飞 . 基于灰色理论的路基沉降研究[J]. 山东大学学报(工学版), 2007, 37(3): 86 -88 .
[6] 孟健, 李贻斌, 李彬. 四足机器人跳跃步态控制方法[J]. 山东大学学报(工学版), 2015, 45(3): 28 -34 .
[7] 张光庆,孔凡玉,李大兴, . Koblitz曲线上抵抗简单功耗分析的有效算法[J]. 山东大学学报(工学版), 2007, 37(3): 78 -80 .
[8] 许延生,刘兴芳 . 模糊聚类迭代模型在水资源承载能力评价中的应用[J]. 山东大学学报(工学版), 2007, 37(3): 100 -104 .
[9] 李善评,胡振,孙一鸣,甄博如,张启磊,曹翰林 . 新型钛基PbO2电极的制备及电催化性能研究[J]. 山东大学学报(工学版), 2007, 37(3): 109 -113 .
[10] 李新平 代翼飞 胡静. 某岩溶隧道围岩稳定性及涌水量预测的流固耦合分析[J]. 山东大学学报(工学版), 2009, 39(4): 1 -6 .