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    液相色谱的分离性能与孔隙结构密切相关,微加工技术为控制微观孔隙结构提供了可能。因此采用微加工技术制备的微型液相色谱柱相比于传统的颗粒填充色谱柱具有更大的优势。本实验室在液相色谱动力学理论,高效色谱柱结构设计方面开展研究,取得了一些成果。

新型色谱柱结构

      

胶体晶体内传质动力学理论

颗粒填充色谱柱内传质动力学

相关论文:

1)Tian XY, Deng XZ, Tan XJ, Yan XH*Numerical evaluation of the diffusion enhancement in meso-microporous materials originating from mesopores,Microporous and Mesoporous Materials, 2017,245:58-63.

 

(2)Yan XH*, Li N, Simulation of solute dispersion in particle packs by the volume averaging method,Computers & Chemical Engineering, 2017,98:154-160.

 

3Yan XH*,Li L, Wang QW, An empirical correlation of the longitudinal and transverse dispersion coefficients for flow through random particle packs, Chemical Engineering Science, 2015. (SCI,通讯作者)

 

4Yan XH*, Wang QW, Li N, Predictive model of solute transport with reversible adsorption in hierarchical porous media, Journal of Chromatography A2015.(SCI,通讯作者)

 

5)张照明,王苗,闫孝红*颗粒填充柱内溶质弥散系数的体积平均方法研究,《化学工程》,2015325-28

 

6)闫孝红*,谭小江,王秋旺,双级孔材料内组分有效扩散系数的理论计算,《化学工程》,2015接收。

 

7Yan XH*, Li N, Nanopillar array with multiscale inter-pillar spacing as chromatography stationary phase support: theoretical performance evaluation, Chemical Engineering Science, 2014. (SCI, 通讯作者)

 

8Yan XH*, Wang QW, Comparative analysis of chromatography dynamic models in predicting the plate height contributed by interphase mass transfer, Chemical Engineering Science, 2013, 104: 760-766. (SCI,通讯作者)

 

9Yan XH*, Wang QW, Numerical investigation into the effects of ordered particle packing and slip flow on the performance of chromatography, Journal of Separation Science, 2013, 36: 1524-1529. (SCI,通讯作者)

 

10Yan XH, Wang QW, Bau HH*, Dispersion in retentive pillar array columns, Journal of Chromatography A, 2010, 1217: 1332-1342. (SCI)

 

 

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    微型气相色谱采用微通道代替经典的毛细管,具有结构设计灵活、便于集成、分离性能高等优点,有望满足野外在线检测的需求。为提高微型气相色谱性能,本实验室在动力学模型、微通道结构优化方面开展了一系列工作,开发成功微通道截面优化工具,提出优化微通道色谱柱截面形貌。

微通道色谱柱截面形貌优化

 相关论文:

(1)Yan XH*, Liu M, Zhang JK, Zhu HR, Li YF, Liang K, On-chip investigation of the hydrodynamic dispersion in rectangular microchannels, Microfluidics and Nanofluidics, 2015.

(2)Yan XH*, Yang J, Wang QW, Liu YZ, Theoretical tools for predicting optimal cross-sectional shapes in micro gas chromatography, Journal of Separation Science, 2013, 36: 1537-1544. (SCI,通讯作者)

(3)闫孝红,Haim H Bau, 王秋旺,微尺度色谱通道截面形状优化,工程热物理学报, 2012,33:505-508.

Educational Experience

    微通道在电子器件散热中应用广泛,理解气体在通道内的压降及传热性能对优化微通道散热器至关重要。本实验室开展了气体在微通道内的流动传热特性数值模拟,取得了一些成果。
 
相关论文:
 
(1)Yan XH, Wang QW*, Numerical investigation of combined effects of rarefaction and compressibility for gas flow in microchannels and microtubes, Journal of Fluids Engineering-Transaction of the ASME, 2009, 131: 101201. (SCI)
 
(2)Wang QW*, Yan XH, He QW, Heat-flux-specified boundary treatment for gas flow and heat transfer in microchannel using direct simulation Monte Carlo methodInternational Journal for Numerical Methods in Engineering, 2008, 74: 1109-1127. (SCI)

 

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    计算流体动力学(CFD)可辅助设计大量能源化工设备与系统。已完成及正在进行的内容包括旋风分离器设计,微通道换热器模拟,厂房供排风系统设计,低温流体空温汽化器设计软件开发。

 

             厂房污染物排放系统设计                                                   微通道冷凝器冷凝过程预测与优化