首页|Impacts of multi-foulings on salinity gradient energy conversion process in negatively charged conical nanochannels
Impacts of multi-foulings on salinity gradient energy conversion process in negatively charged conical nanochannels
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Membrane fouling inevitably occurs during nanofluidic reverse electrodialysis.Herein,the impact of multi-fouling on the energy conversion performance of negatively charged conical nanochannels under asymmetrical configurations is systematically in-vestigated.The results reveal that in Configuration I,where a high-concentration solution is applied at the tip side,at small concentration ratios,multiple foulings reduce the electric power.In Configuration Ⅱ,where a low-concentration solution is applied at the tip side,multiple foulings near the base side contribute to the electric power.Any fouling that formed near the low-concentration entrance diminished the electric power and energy conversion efficiency.Multi-fouling lowered the electrical power consumption by 69.27％and 99.94％in Configurations I and Ⅱ,respectively.In Configuration I,the electric power first increased with increasing fouling surface charge density,reached its maximum value,and thereafter decreased.In ConfigurationⅡ,the electric power first decreased with increasing fouling surface charge density,reached its minimum value,and thereafter increased.Large negative or positive charge densities of fouling contribute to the electric power and energy conversion efficiency.
conical nanochannelfoulingnanofluidic reverse electrodialysissalinity gradient energy
MAO RuiJie、CHEN Xi、ZHOU RuHong、LONG Rui、LIU ZhiChun、LIU Wei
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School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China
China-EU Institute for Clean and Renewable Energy,Huazhong University of Science and Technology,Wuhan 430074,China
School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China
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