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http://dx.doi.org/10.11001/jksww.2017.31.4.339

An Experimental Study on the Characteristic of Thermal Performance according to Feed Water Conditions to of Vacuum Membrane Distillation Module using PVDF Hollow Fiber  

Joo, Hongjin (Solar Thermal Convergence Laboratory, Korea Institute of Energy Research (KIER))
Kwak, Heeyoul (Solar Thermal Convergence Laboratory, Korea Institute of Energy Research (KIER))
Publication Information
Journal of Korean Society of Water and Wastewater / v.31, no.4, 2017 , pp. 339-346 More about this Journal
Abstract
In this study, thermal performance test of VMD module was performed, prior to the construction of the demonstration plant using the vacuum membrane distillation (VMD) module of the capacity of $400m^3/day$ and to the commercialization of the VMD module. For the thermal performance test, the experimental equipment of capacity of $2m^3/day$ was constructed. The permeate flux test and thermal performance test according to feed water conditions such as temperature and flow rate were conducted. The VMD module used in the study was manufactured by ECONITY Co., LTD with PVDF hollow fiber membrane. As a result, the Performance Ratio (PR) of the VMD module showed the maximum value of 0.904 under the condition of feed water temperature of $75^{\circ}C$ and flow rate of $8m^3/h$. PR value of the VMD module using PVDF hollow fiber membrane showed linearly increasing relationship with feed water temperature and flow rate. Also, The permeate flux of the VMD module was analyzed to have maximum value of 18.25 LMH and the salt rejection was 99.99%.
Keywords
Desalination; Hollow Fiber Membrane; Membrane Distillation; Vacuum Membrane Distillation;
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