A Model for Transport Phenomena in a Cross-Flow Ultrafiltration Module with Microchannels
نویسندگان
چکیده
منابع مشابه
A Model for Transport Phenomena in a Cross-Flow Ultrafiltration Module with Microchannels
Cross-flow ultrafiltration of macromolecular solutions in a module with microchannels is expected to have the advantages of fast diffusion from the membrane surface and a high ratio of membrane surface area to feed liquid volume. Cross-flow ultrafiltration modules with microchannels are expected to be used for separation and refining and as membrane reactors in microchemical processes. Though t...
متن کاملTransport phenomena in ultrafiltration: membrane selectivity and boundary layer phenomena
Retention characteristics of UF membranes are de— lineated through comparison of the combined viscous flow and frictional model with the Ferry—Faxen equation. The molecular weight cut—off concept is discussed using calculations of how sharp cut-off curves one can expect of UF membranes with uniform pore sizes and how heteroporosity will affect such curves. Experimental retention—flux curves for...
متن کاملA New Design of a Micro-Channel Cross-Flow Ultrafiltration Module with a Staggered Arrangement of Membranes
Cross-flow ultrafiltration of macromolecular solutions in a module with micro-channels is expected to have the advantages of fast diffusion from the membrane surface and a high ratio of membrane surface area to feed liquid volume. In addition, high shear stress will reduce the degree of fouling of the membrane. Though such kinds of ultrafiltration modules are expected to be used for separation ...
متن کاملpassivity in waiting for godot and endgame: a psychoanalytic reading
this study intends to investigate samuel beckett’s waiting for godot and endgame under the lacanian psychoanalysis. it begins by explaining the most important concepts of lacanian psychoanalysis. the beckettian characters are studied regarding their state of unconscious, and not the state of consciousness as is common in most beckett studies. according to lacan, language plays the sole role in ...
Mass Transfer Coefficients in Cross-flow Ultrafiltration
Usually, in concentration polarization models, the mass transfer coefficient is an unknown parameter. Also, its variation with changing experimental circumstances is in question. In the literature, many relationships can be found to describe the mass transfer coefficient under various conditions, as well as various corrections for deviating behaviour during ultrafiltration. To obtain reliable m...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Membranes
سال: 2010
ISSN: 2077-0375
DOI: 10.3390/membranes1010013