Mass transfer modelling of hollow fiber membrane contactor for apple juice concentration using osmotic membrane distillation

2020 ◽  
Vol 250 ◽  
pp. 117209 ◽  
Author(s):  
Sher Ahmad ◽  
Gabriela Vollet Marson ◽  
Waheed Zeb ◽  
Waheed Ur Rehman ◽  
Mohammad Younas ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Hollow Fiber ◽  
Apple Juice ◽  
Hollow Fiber Membrane ◽  
Membrane Distillation ◽  
Membrane Contactor ◽  
Fiber Membrane ◽  
Transfer Modelling

Heat and mass transfer in a hollow fiber membrane contactor for sweeping gas membrane distillation

2019 ◽  
Vol 220 ◽  
pp. 334-344 ◽  
Author(s):  
Si-Min Huang ◽  
Yang-Hui Chen ◽  
Wu-Zhi Yuan ◽  
Shuaifei Zhao ◽  
Yuxiang Hong ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Membrane Distillation ◽  
Membrane Contactor ◽  
Fiber Membrane ◽  
Sweeping Gas

scholarly journals Development of mass and heat transfer coupled model of hollow fiber membrane for salt recovery from brine via osmotic membrane distillation

2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Sher Ahmad ◽  
Gabriela Vollet Marson ◽  
Waheed Ur Rehman ◽  
Mohammad Younas ◽  
Sarah Farrukh ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Heat And Mass Transfer ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Membrane Distillation ◽  
Fiber Membrane ◽  
Salt Recovery ◽  
Osmotic Solution

Abstract Background In this research work, a coupled heat and mass transfer model was developed for salt recovery from concentrated brine water through an osmotic membrane distillation (OMD) process in a hollow fiber membrane contactor (HFMC).The model was built based on the resistance-in-series concept for water transport across the hydrophobic membrane. The model was adopted to incorporate the effects of polarization layers such as temperature and concentration polarization, as well as viscosity changes during concentration. Results The modeling equations were numerically simulated in MATLAB® and were successfully validated with experimental data from literature with a deviation within the range of 1–5%. The model was then applied to study the effects of key process parameters like feed concentrations, osmotic solution concentration, feed, and osmotic solution flow rates and feed temperature on the overall heat and mass transfer coefficient as well as on water transport flux to improve the process efficiency. The mass balance modeling was applied to calculate the membrane area based on the simulated mass transfer coefficient. Finally, a scale-up for the MD process for salt recovery on an industrial scale was proposed. Conclusions This study highlights the effect of key parameters for salt recovery from wastewater using the membrane distillation process. Further, the applicability of the OMD process for salt recovery on large scale was investigated. Sensitivity analysis was performed to identify the key parameters. From the results of this study, it is concluded that the OMD process can be promising in salt recovery from wastewater.

Design of a Novel Hollow-Fiber Membrane Contactor for Carbon Dioxide Absorption

2013 ◽  
Vol 777 ◽  
pp. 33-37
Author(s):  
Han Gong ◽  
Jin Sheng Shen
Keyword(s):  
Mass Transfer ◽  
Transfer Process ◽  
Hollow Fiber ◽  
Liquid Velocity ◽  
Hollow Fiber Membrane ◽  
Mass Transfer Process ◽  
Membrane Contactor ◽  
Fiber Membrane ◽  
Carbon Dioxide Absorption ◽  
Absorption Function

In this subject, a new spatial structure of the membrane contactor is explored and designed from analysis of mass transfer process, resistance theory and flow type. Under laboratory conditions, the experiment uses several methods including fluid mechanics, mass transfer process and the analysis of the fluid flow to achieve CO2 absorption function with the new hollow fiber membrane contactor. This new design of device is tested in conditions of two absorption liquids: MEA, DEA; three absorption concentrations: 6L/h, 8L/h, 10L/h; liquid velocity: 1mol/L, 0.5mol/L and air speed: 1L/min, 0.5L/min, to absorb CO2 from the gas mixture to make sure that if it has good properties. Through these experiments, we could see that the new hollow fiber membrane contactor has an increase in absorption efficiency by 10% on average.

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