刘丽艳^1,2,李建童¹,谷硕¹,陈竞博⁴,王志国⁴,杜文⁴,李兵兵³

• 1:天津大学 化工学院，天津 300350
• 2:天津市化工安全与装备技术重点实验室，天津 300350
• 3:天津仁爱学院 能源与化工学院，天津 301636
• 4:湖南中烟工业有限责任公司技术中心，湖南 长沙 410007

摘要(Abstract)：

为了获得黏度对二元混合液毛细蒸发选择性的影响规律，结合CCD相机搭建了变径单毛细管蒸发装置，研究具有不同黏度的甲醇-水、丙二醇-丙三醇混合液的蒸发特性。结果表明黏度在0.399～0.822 mPa·s时，管口近液面Marangoni对流状态随黏度变化，进而影响二元混合液的毛细蒸发选择性。当黏度小于0.612 mPa·s时，甲醇-水混合液出现“先快后慢”的选择性蒸发现象，但选择性随黏度升高而不断下降。丙二醇-丙三醇混合液在低黏度(0.597 mPa×s)时也出现选择性蒸发。研究方法和结果为后续微型换热器用混合换热介质开发提供参考。

关键词(KeyWords)： 毛细蒸发;黏度;二元混合液;Marangoni对流;蒸发选择性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(21978204)；中国烟草总公司科技重大专项(110202001009(XX-05))

作者(Author): 刘丽艳^1,2,李建童¹,谷硕¹,陈竞博⁴,王志国⁴,杜文⁴,李兵兵³

DOI: 10.3969/j.issn.1003-9015.2023.03.003

参考文献(References)：

• [1] VASILIEV L. Micro and miniature heat pipes-Electronic component coolers [J]. Applied Thermal Engineering, 2008, 28(4): 266-273.
  [2] ARANEO L. Performance analysis and simplified modelling of a capillary jet loop heat pipe [J]. Applied Thermal Engineering, 2021, 197(1): 1359-4311.
  [3] 张威. 毛细管前端换热器传热及阻力特性研究 [D]. 青岛: 青岛理工大学, 2013. ZHANG W. Study on heat transfer and resistance characteristics of capillary heat exchanger [D]. Qingdao: Qingdao University of Technology, 2013.
  [4] 李庆友, 王文. 用于电子元件散热的集成热管换热特性研究 [J]. 节能技术, 2005, 6(23): 497-501. LI Q Y, WANG W. Study on heat transfer characteristics of integrated heat pipe for electronic component heat dissipation [J]. Energy Saving Technology, 2005, 6(23): 497-501.
  [5] 杨国忠. 毛细辅助蒸发理论与实验研究 [D]. 上海: 上海交通大学, 2007. YANG G Z. Theoretical and experimental study on capillary assisted evaporation [D]. Shanghai: Shanghai Jiaotong University, 2007.
  [6] 兰波. 毛细管内蒸发界面的传热传质特性 [D]. 重庆: 重庆大学, 2008. LAN B. Heat and mass transfer characteristics of evaporation interface in capillary tubes [D]. Chongqing: Chongqing University, 2008.
  [7] 张晨思. 毛细管内乙醇自然蒸发弯月面温度分布和对流模式研究 [D]. 天津: 天津商业大学, 2021. ZHANG C S. Study on temperature distribution and convection mode of meniscus during ethanol natural evaporation in capillary tubes [D]. Tianjin: Tianjin University of Commerce, 2021.
  [8] LU X H, LUO X X, CAO H B, et al. Experimental analysis of heat storage and release of binary methanol aqueous solution pulsating heat pipe phase change accumulator [J]. Frontiers in Energy Research, 2022, 2(10): 1-10.
  [9] DUURSMA G, SEFIANE K, CLARKE J. Diffusion-evaporation studies of binary mixtures in capillary tubes: Diffusion in solids and liquids [C]. Zurich: Trans Technology Publications LTD, 2008.
  [10] CHAN H J, HYUNG J L, CHANG K C, et al. Selective evaporation rate modeling of volatile binary mixture droplets [J]. International Journal of Heat and Mass Transfer, 2021, 178(1): 1-11.
  [11] 赵鹏程, 赵力, 丁国良, 等. 二元混合工质与换热介质的温度匹配在热泵中的应用 [J]. 太阳能学报, 2003, 24(2): 172-177. ZHAO P C, ZHAO L, DING G L, et al. Temperature matching of binary mixed work gases and heat transfer media in heat pumps [J]. Acta Energies Solaris Sinica, 2003, 24(2): 172-177.
  [12] 程似骐. 不同比例双沸点燃料闪沸喷雾特性研究 [D]. 上海: 上海交通大学, 2017. CHENG S Q. Study on spray characteristics of two-component fuel with different mixing ratios [D]. Shanghai: Shanghai Jiaotong University, 2017.
  [13] METZGER T, TSOTSAS E. Viscous stabilization of drying front: three-dimensional pore network simulations [J]. Chemical Engineering Research and Design, 2008, 86(7): 739-744.
  [14] TALEGHANI S T, DADVAR M. Two dimensional pore network modeling and simulation of non-isothermal drying by the inclusion of viscous effects [J]. International Journal of Multiphase Flow, 2014, 62(2): 37-44.
  [15] POST S, URUKOVA I, TSOTSA E. Interfacial convection during evaporation of binary mixtures from porous obstacles [J]. American Institute of Chemical Engineers, 2005, 51(12): 3257-3274.
  [16] SEETON C J. Viscosity–temperature correlation for liquids [J]. Tribology Letters, 2006, 22(1): 67-78.
  [17] GALLIERO G, BONED C, BAYLAUCQ A. Molecular dynamics study of the Lennard-Jones fluid viscosity: Application to real fluids [J]. Industrial & Engineering Chemistry Research, 2005, 44(17): 6963-6972.
  [18] WASAN D T. Fluid dynamics: droplets speeding on surfaces [J]. Science, 2001, 291(5504): 605-616.
  [19] 刘洪勤. 液体纯物质的黏度及扩散系数与蒸发潜热间的关系 [J]. 高校化学工程学报, 1993, 7(1): 1-7. LIU H Q. Relationship between the viscosity and diffusion coefficient of a liquid pure substance and the latent heat of evaporation [J]. Journal of Chemical Engineering of Chinese Universities, 1993, 7(1): 1-7.
  [20] PUNIT T. The effect of concentration on the rate of evaporation: pharmaceutical engineering team [R/OL]. (2014-02-04) [2022-05-26]. https://labmonk.com/effect-concentration-rate-evaporation.
  [21] 林俊, 陈威. 纳米流体毛细弯液蒸发界面热质迁移特性分析 [J]. 热能动力工程, 2014, 29(4): 420-426. LIN J, CHEN W. Analysis of heat and mass transfer characteristics at the evaporation interface of nanofluids [J]. Journal of Engineering for Thermal Energy and Power, 2014, 29(4): 420-426.
  [22] 王小飞, 何茂刚, 张颖. 水平管降膜蒸发器管外液体流动数值模拟 [J]. 工程热物理学报, 2008(8): 1347-1350. WANG X F, HE M G, ZHANG Y. Numerical simulation of the liquid flowing outside the tube of the horizontal-tube falling film evaporator [J]. Journal of Engineering Thermophysics, 2008(8): 1347-1350.
  [23] 任文辉, 林智群, 彭道林. 液体表面张力系数与温度和浓度的关系 [J]. 湖南农业大学学报(自然科学版), 2004, 30(1): 77-79. REN W H, LIN Z Q, PENG D L. On the relationship between the liquid surface tension and the temperature and the concentration [J]. Journal of Hunan Agricultural University(Natural Science), 2004, 30(1): 77-79.
  [24] BUFFONE C, SEFIANE K, CHRISTY J. Experimental investigation of self-induced thermocapillary convection for an evaporating meniscus in capillary tubes using micro-particle image velocimetry [J]. Physics of Fluids, 2005, 17(5): 1261-1291.
  [25] 张利. 表面散热对环形液池内热毛细对流的影响 [D]. 重庆: 重庆大学, 2018. ZHANG L. Effect of surface heat dissipation on thermocapillary convection in annular pool [D]. Chongqing: Chongqing University, 2018.
  [26] SEFIANE K, YU X, DUURSMA G, et al. On heat and mass transfer using evaporating self-rewetting mixtures in microchannels [J]. Applied Thermal Engineering, 2020, 179(1): 115-122.
  [27] LI Y, ALIBAKHSHI M A, ZHAO Y, et al. Exploring ultimate water capillary evaporation in nanoscale conduits [J]. Nano Letters, 2017, 17(8): 4813-4819.
  [28] TALIH S, BALHAS Z, SALMAN R, et al. Transport phenomena governing nicotine emissions from electronic cigarettes: Model formulation and experimental investigation [J]. Aerosol Science and Technology, 2017, 51(1): 1-11.
  [29] JASVANTH V S, AMBIRAJAN A, ARAKERI J H. Experimental study on evaporation of pentane from a heated capillary slot [J]. International Journal of Heat and Mass Transfer, 2016, 95(2): 466-476.
  [30] 李鸿如, 陈岩, 程旭, 等. 不同管径毛细管的毛细蒸发特性实验 [J]. 化工学报, 2018, 69(1): 43-47. LI H R, CHEN Y, CHENG X, et al. Capillary evaporation in tubes with different diameters [J]. CIESC Journal, 2018, 69(1): 43-47.
  [31] JAVOR K, NIKOLAY P. Evaporating foam films of pure liquid stabilized via the thermal Marangoni effect [J]. Chemical Engineering Science, 2017, 171(2): 520-533.
  [32] 章佳健. 纳米尺度下液滴蒸发的分子动力学研究 [D]. 合肥: 中国科学技术大学, 2020. ZHANG J J. Molecular dynamics study of nanodroplets evaporation [D]. Hefei: University of Science and Technology of China, 2020.