Experimental study on differences of heat and mass flux between 10- and 50-nm pore-sized nano-porous ceramic membranes

  • Boran YangEmail author
  • Haiping Chen
  • Chao Ye
  • Xiangsheng Li
  • Yijun Feng


In this study, the experiment compares the thermal and water-recovery performance of the 10- and 50-nm pore-sized ceramic membrane tubes. The gas mixture consisting of water vapor and nitrogen gets thorough the ceramic membrane tube, and the cooling water flows along the tube exterior surface. The feed gas velocity (Ub,in) at the entrance was changed from 4 to 8 L/min and the inlet temperature (Tb,in) was increased from 323 to 353 K. What’s more, the cooling water (Uc,in) velocity at the entrance was 1, 1.5, and 2 L/min respectively. In conclusion, the performance of heat and mass transfer in the 10-nm pore-sized membrane tube is more remarkable than that in 50-nm pore-sized membrane tube. Additionally, the efficiency of water recovery in the two kinds of ceramic membrane tube increases with the increasing of Tb,in and Uc,in, while it decreases with the increasing of Ub,in. The capabilities of gas adsorption and thermal conduction are influenced by surface area of membranes, which can be attributed to the difference of heat and mass-transfer process between the 10- and 50-nm pore-sized ceramic membrane tubes.


Ceramic membrane Water recovery Gas adsorption Pore diameter 




convective heat-transfer coefficient (W/m2 K)


temperature (k)


diameter (m)


heat (kJ)


area of membrane (m2)


velocity (m/s)


specific isobaric heat capacity (kJ/kg K)


mass (kg)




experimental time (s)


x-coordinate (mm)


thermal resistance (K/W m2)


length (m)

Greek letters


thickness (mm)


thermal conductivity (W/m k)


density (kg/m3)


latent heat (kJ)


porosity of ceramic membrane











saturated state


water recovery


membrane wall surface


ceramic membrane module


feed gas side


coolant water side


original water content


latent heat part


thermal conductivity


effective part




Funding information

This study was funded by the National Key R&D Program of China (grant number 2018YFB0604302).

Compliance with ethical standards

This article does not contain any studies performed by any of the authors. Informed consent was obtained from all individual participants included in the study.

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Australian Ceramic Society 2018

Authors and Affiliations

  1. 1.School of Energy, Power and Mechanical Engineering, National Thermal Power Engineering and Technology Research CenterNorth China Electric Power UniversityBeijingChina

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