AIR HUMIDIFICATION WITH HOLLOW FIBER MEMBRANES: NEW IMPACTS ON CONJUGATED HEAT AND MASS TRANSFER

2012 ◽  
Author(s):  
Si-Min Huang ◽  
Lizhi Zhang
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Hollow Fiber ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes ◽  
Air Humidification

scholarly journals The Effect of Flow-Induced Vibration on Heat and Mass Transfer Performance of Hollow Fiber Membranes in the Humidification/Dehumidification Process

Membranes ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 918
Author(s):  
Zhenxing Li ◽  
Bo Chen ◽  
Caihang Liang ◽  
Nanfeng Li ◽  
Yunyun Zhao ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Laser Vibrometer ◽  
Transfer Performance ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes ◽  
Fiber Deformation

Cross-flow hollow fiber membranes are commonly applied in humidification/dehumidification. Hollow fiber membranes vibrate and deform under the impinging force of incoming air and the gravity of liquid in the inner tube. In this study, fiber deformation was caused by the pulsating flow of air. With varied pulsating amplitudes and frequencies, single-fiber deformation was investigated numerically using the fluid–structure interaction technique and verified with experimental data testing with a laser vibrometer. Then, the effect of pulsating amplitude and frequency on heat and mass transfer performance of the hollow fiber membrane was analyzed. The maximum fiber deformation along the airflow direction was far larger than that perpendicular to the flow direction. Compared with the case where the fiber did not vibrate, increasing the pulsation amplitude could strengthen Nu by 14–87%. Flow-induced fiber vibration could raise the heat transfer enhancement index from 13.8% to 80%. The pulsating frequency could also enhance the heat transfer of hollow fiber membranes due to the continuously weakened thermal boundary layer. With the increase in pulsating amplitude or frequency, the Sh number or Em under vibrating conditions can reach about twice its value under non-vibrating conditions.

scholarly journals Development of a novel intravascular oxygenator catheter: Oxygen mass transfer properties across nonporous hollow fiber membranes

2020 ◽  
Vol 118 (1) ◽  
pp. 345-356
Author(s):  
Stewart Farling ◽  
Tobias L. Straube ◽  
Travis P. Vesel ◽  
Nick Bottenus ◽  
Bruce Klitzman ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Hollow Fiber ◽  
Oxygen Mass Transfer ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes ◽  
Transfer Properties

Analysis of mass transfer in hollow-fiber membranes

Desalination ◽  
2002 ◽  
Vol 145 (1-3) ◽  
pp. 147-152 ◽  
Author(s):  
Endre Nagy ◽  
Péter Hadik
Keyword(s):  
Mass Transfer ◽  
Hollow Fiber ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes

Modeling the mass transfer in solvent-extraction processes with hollow-fiber membranes

AIChE Journal ◽  
2005 ◽  
Vol 51 (4) ◽  
pp. 1067-1079 ◽  
Author(s):  
S. Bocquet ◽  
A. Torres ◽  
J. Sanchez ◽  
G. M. Rios ◽  
J. Romero
Keyword(s):  
Mass Transfer ◽  
Solvent Extraction ◽  
Hollow Fiber ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes ◽  
Extraction Processes
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